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  • AAPG Wiki:Bob
    * Likes to have a solid background before starting a new project * Runs a training course for young geologists
    539 bytes (73 words) - 13:14, 6 August 2013
  • Azimuth
    ...is defined as the orientation of a line at which a tilted body intersects a horizontal plane. It is usually but not always relative to north.
    329 bytes (49 words) - 13:47, 26 March 2015
  • Trip
    ...g it all back in again) is called a trip. The deeper the hole, the longer a trip takes.
    450 bytes (82 words) - 13:57, 12 March 2019
  • Scout ticket
    [[File:Scout Ticket.png|thumb|500px|Example of a scout ticket. Source: [http://petrowiki.org petrowiki.org] ]] ...almost none; this is called a ''tight hole''. Information that may be on a scout ticket includes location,details of drilling and casing, geologic top
    987 bytes (157 words) - 14:18, 4 January 2017
  • Hiatus
    A break or discontinuity in a process. An [[unconformity]] is the physical representation ofa temporal h
    217 bytes (28 words) - 20:48, 25 August 2014
  • Buckles plot
    ...t relates to capillary pressure, fluid distribution, and fluid recovery in a reservoir.]] A Buckles plot is a plot of water saturation (S<sub>w</sub>) vs. [[porosity]]. Contours of equa
    1 KB (183 words) - 18:19, 26 March 2015
  • Dry
    This is a confusing term. When a reservoir is said to be dry, it is really wet - but with formation water, a
    204 bytes (33 words) - 16:05, 20 August 2014
  • Stratigraphic column
    ...logical-fieldwork_fig19-2.png|500px|thumb|{{figure number|1}}An example of a stratigraphic column.]] A stratigraphic column and a surface [[geologic mapping|geology map]] can show the following:
    533 bytes (68 words) - 13:54, 18 March 2019
  • Sandbox
    All articles should start with a short, dictionary-like definition. This is a citation.<ref>This is a reference.</ref>
    571 bytes (74 words) - 18:30, 8 August 2013
  • Basement
    ...on for oil and gas, but in some places fractured basement has proven to be a commercial reservoir.
    264 bytes (40 words) - 15:52, 10 March 2016
  • Multilateral well
    ...a multilateral well. A well with two productive laterals is referred to as a dual [[lateral]] well. Mth14ch00f01.jpg|Simple vertical profile of a horizontal well, illustrating basic terms.
    1 KB (187 words) - 15:44, 26 April 2016
  • Ductility
    ...data/specpubs/beaumont/ch10/ch10.htm Evaluating top and fault seal], in E. A. Beaumont and N. H. Foster, Exploring for Oil and Gas Traps: [http://store.
    990 bytes (151 words) - 14:30, 27 January 2016
  • Accumulation
    ...datapages.com/data/specpubs/beaumont/ch02/ch02.htm What is a trap?], in E. A. Beaumont & N. H. Foster, eds., [http://store.aapg.org/detail.aspx?id=545 E .../ch09/ch09.htm Predicting reservoir system quality and performance], in E. A. Beaumont & N. H. Foster, eds., [http://store.aapg.org/detail.aspx?id=545 E
    1 KB (206 words) - 17:37, 27 January 2015
  • Lateral
    ...e in a targeted, potentially productive interval. In a single-branch case, a lateral runs from the end of the [[bend (curve)|curve]] ([[heel]]) to the [ [[file:Mth14ch00f01.jpg|thumb|center|500px|Simple vertical profile of a horizontal well, illustrating basic terms.]]
    1 KB (185 words) - 13:56, 17 March 2016
  • Free water level
    ...arbon alone on a [[production test]]. Below this level lies the aquifer of a [[Drive mechanisms and recovery#Water drive|water drive]] reservoir system.
    525 bytes (76 words) - 14:40, 8 September 2014
  • Meteoric diagenesis
    ....htm Eogenetic meteoric diagenesis] in P. A. Scholle and D. Ulmer-Scholle, A color guide to the petrography of carbonate rocks: Grains, textures, porosi
    648 bytes (87 words) - 15:34, 10 December 2015
  • Petroleum system identification
    | author = Leslie B. Magoon, Edward A. Beaumont Before a [[petroleum]] system can be investigated, it must be identified as being pr
    2 KB (298 words) - 18:35, 25 January 2022
  • Imperial Barrel Award
    Geoscience graduate students are encouraged to explore a career in the energy industry by participating in the Imperial Barrel Award * Receive a real-world, career-development experience with your performance judged by i
    650 bytes (91 words) - 22:51, 14 January 2014
  • Petroleum system naming
    | author = Leslie B. Magoon, Edward A. Beaumont ...geologists, we name rock units, fossils, uplifts, and basins. The name for a specific [[petroleum]] system separates it from other [[petroleum systems]]
    3 KB (367 words) - 18:35, 25 January 2022
  • The art and science of exploring for oil and gas
    ...ery and the deep satisfaction of being able to use science and art to find a valuable resource for the benefit of all mankind. Specifically, we identifi [[Category:Developing a philosophy of exploration]]
    765 bytes (105 words) - 13:37, 7 July 2014
  • Multilevel well
    ...multiple levels in a single [[lateral]] separated by higher-angle bends is a multilevel well. These wells typically are used to encounter multiple reser Mth14ch00f01.jpg|Simple vertical profile of a horizontal well, illustrating basic terms.
    1 KB (183 words) - 15:42, 26 April 2016
  • Chert
    ...|thumb|500px|This image is a work of the "Minerals in Your World" project, a cooperative effort between the United States Geological Survey and the Mine
    608 bytes (91 words) - 19:02, 11 March 2015
  • Dry hole
    ...onomics]] and technologies change, yesterday's dry hole may be revived (or a twin to it may be drilled) to yield today's successful well.
    322 bytes (52 words) - 13:44, 18 March 2019
  • Creating a new article
    #REDIRECT [[Help:Creating a new article]]
    41 bytes (6 words) - 19:28, 16 April 2014
  • Designing a geochemical survey
    #REDIRECT [[Designing a surficial geochemical survey]]
    54 bytes (6 words) - 20:36, 15 April 2014
  • Introduction to contouring geological data with a computer
    #REDIRECT [[Contouring geological data with a computer]]
    56 bytes (7 words) - 15:31, 18 February 2015
  • Surficial geochemical survey: design
    #REDIRECT [[Designing a surficial geochemical survey]]
    54 bytes (6 words) - 16:43, 19 December 2014
  • Contour
    [[File:Plateau_contour.jpg|thumb|450px|Contour lines showing a plateau. From Wikimedia Commons.]] * [[Contouring geological data with a computer]]
    540 bytes (69 words) - 20:24, 27 March 2015
  • Anthropocene
    ...ne]] is a new geologic [[epoch]], "the age of humans." The implications of a new epoch are still being worked through by scientists.
    583 bytes (70 words) - 19:14, 14 March 2019
  • Selecting a survey method
    #REDIRECT [[Selecting a surficial geochemistry survey method]]
    62 bytes (7 words) - 13:10, 9 September 2014
  • Building a stratigraphic model
    #REDIRECT [[Seismic data: building a stratigraphic model]]
    58 bytes (7 words) - 16:45, 21 July 2014
  • Interpreting Sw distribution in a reservoir
    #REDIRECT [[Water saturation distribution in a reservoir]]
    58 bytes (7 words) - 16:15, 27 October 2014
  • Unconformity
    ...mentary beds are overlain by horizontal beds. This unconformity represents a long gap in the record of geological time, during which deposition had ceas * [http://geology.about.com/od/geoprocesses/a/unconformities.htm Unconformities, angular unconformities, disconformities,
    1 KB (158 words) - 14:47, 24 March 2015
  • AAPG Wiki:Scope and strategy
    ''These notes are based on a meeting between the wiki team and the executive team on 19 June 2013.'' <blockquote>Crowdsourcing is what we do as a scientific organization. — ''David Curtiss''</blockquote>
    2 KB (269 words) - 14:09, 17 July 2013
  • Dip
    ...that a strike be given), 4 SE (likewise), or 4 65SE (dipping 4 degrees in a 65SE direction; this by inference gives the strike, because it is perpendic
    991 bytes (153 words) - 23:00, 17 November 2014
  • Reservoir system
    | author = Dan J. Hartmann, Edward A. Beaumont ...dless of the fluid it contains. Reservoir engineers apply the term to mean a rock that contains [[hydrocarbon]]s and associated fluids. This difference
    4 KB (579 words) - 14:34, 1 April 2022
  • Sidetrack
    ...idetracking operation may be done intentionally or may occur accidentally. A [[multilateral well|multilateral]] or [[multilevel well]] will have multipl [[file:Mth14ch00f01.jpg|thumb|center|300px|Simple vertical profile of a horizontal well, illustrating basic terms.]]
    1 KB (191 words) - 19:41, 3 March 2016
  • Sand peel
    [[File:SandPeel.JPG|thumbnail|300px|Portion of a wood mounted sand peel]] .... When the adhesive sets the backing material can be lifted away leaving a thin layer of the sand adhered to the backing material, with depositional f
    2 KB (239 words) - 19:40, 9 September 2014
  • Syncline
    ...f its structures as the syncline. The anticlinal and synclinal features of a fold usually go hand in hand, and the nature of their shape, position and o ...ig_1.png|thumb|300px|{{figure number|1}}A diagram showing the structure of a fold (Courtesy Wikipedia)]]
    3 KB (505 words) - 15:58, 21 March 2019
  • AAPG Wiki:Wiki manager
    ...tion, the editor community, marketing, events, and communications. This is a very broad role, and will be difficult to perform at first; over time it sh ...tent-oriented, and technical. They don't have to be a geoscientist or even a petroleum professional, but it would help.
    2 KB (294 words) - 16:44, 22 July 2013
  • Seal capacity and two-phase hydrocarbon columns
    ...]] of the oil column, however, is less than that of a pure gas column, and a greater total [[hydrocarbon column]] can be trapped. ...se gas accumulation, and a two-phase accumulation with both an oil leg and a gas cap. After Watts.<ref name=ch10r92 /> Copyright: Marine and Petroleum G
    3 KB (445 words) - 20:56, 31 March 2022
  • Scientific method
    | chapter = Developing a philosophy of exploration | author = Edward A. Beaumont, Norman H. Foster, Richard R. Vincelette, Marlan W. Downey, James
    3 KB (380 words) - 14:31, 18 February 2022
  • Diapir
    ...://archives.datapages.com/data/bulletns/2007/03mar/BLTN06034/BLTN06034.HTM A three-dimensional kinematic model for the deformation above an active diapi
    1 KB (142 words) - 15:58, 6 April 2015
  • Techsteq Solution: Virus analysis and elimination
    ...ms that are copied without observing security standards and transmitted to a wide range of networks, which ultimately degrades system performance and st '''How to remove a virus?'''
    1 KB (216 words) - 08:11, 14 December 2019
  • Buoyancy pressures and hydrocarbon presence
    | author = Edward A. Beaumont, Forrest Fiedler Two items are critical for detecting buoyancy pressure in a well:
    3 KB (387 words) - 18:56, 16 February 2022
  • Phi scale
    ...pressed in the phi scale to maintain a sorting index that is useful across a wide range of grain sizes.
    453 bytes (78 words) - 20:55, 27 August 2014
  • API gravity
    ...16&deg;C]-131.5&deg;). A higher API indicates lighter oil. Fresh water has a gravity of 10&deg; API. Heavy oils have less than 25&deg; API, medium oils
    951 bytes (140 words) - 14:03, 25 February 2016
  • How to use the trap classification scheme
    | author = Richard R. Vincelette, Edward A. Beaumont, Norman H. Foster ...provide the ultimate trapping mechanism. Classifying combination traps is a matter of deciding which are the primary, secondary, and, in some cases, te
    1 KB (191 words) - 18:46, 12 April 2022
  • Phases of a seismic project
    Generally speaking, there are three phases of a seismic project: ...[[seismic survey design]] and can recognize problems when they arise. Even a well-designed survey can be ruined by sloppy acquisition methods. Common cu
    3 KB (455 words) - 22:00, 25 January 2022
  • How capillary properties control seal
    ...of the seal, the seal leaks. For example, a shale top seal that could seal a 100-m column of oil might leak if the column increased to [[length::101 m]]
    2 KB (266 words) - 15:45, 31 March 2022
  • Underpressure causes
    | author = Edward A. Beaumont, Forrest Fiedler ...h it occurs. For this situation to exist, the fluid must be trapped within a rock unit.
    3 KB (390 words) - 16:23, 16 February 2022
  • Hydrocarbon generation
    ....tamu.edu/publications/tnotes/tn30/tn30_2.htm Ocean Drilling Program Texas A&M University article]
    258 bytes (35 words) - 16:37, 27 March 2015
  • Hydrocarbon pressure gradient: plotting
    | author = Edward A. Beaumont, Forrest Fiedler ...ormal hydrostatic pressure#Fluid_pressure|fluid pressure]] measured within a reservoir.
    3 KB (381 words) - 17:54, 17 February 2022
  • Horizontal well
    A horizontal well is a directional well, usually exceeding 80&deg; of departure from vertical, whi [[file:Mth14ch00f01.jpg|thumb|center|300px|Simple vertical profile of a horizontal well, illustrating basic terms.]]
    1 KB (182 words) - 19:31, 3 March 2016
  • Kickoff point
    ...point (KOP) is the location in a vertical wellbore or inclined section of a slant well where directional drilling operations commence in order to build [[file:Mth14ch00f01.jpg|thumb|center|500px|Simple vertical profile of a horizontal well, illustrating basic terms.]]
    1 KB (182 words) - 21:16, 15 March 2016
  • Viscosity
    Fluid viscosity is a measure of the resistance of a fluid to flow. The viscosity of liquid [[oil]] depends on its composition,
    677 bytes (96 words) - 21:13, 6 July 2015
  • Cracking
    ...ules break apart into smaller molecules during burial [[maturation]] or in a refinery. [[Kerogen]] in source rocks and oil in reservoirs are cracked to
    768 bytes (107 words) - 15:14, 23 August 2016
  • Cross-sealing fault
    A cross-sealing fault prevents communication of hydrocarbons between juxtapos file:evaluating-top-and-fault-seal_fig10-6.png|{{figure number|1}}A fault is cross sealing if it juxtaposes hydrocarbon-bearing sands with wate
    3 KB (399 words) - 21:31, 24 March 2022
  • Extended-reach wells
    ...onmental or economic contraints) that are attempting to access reserves at a significant distance from the surface access point. [[file:Mth14ch00f01.jpg|thumb|center|300px|Simple vertical profile of a horizontal well, illustrating basic terms.]]
    1 KB (186 words) - 19:42, 3 March 2016
  • Subsurface team
    ...le below. Teamwork is essential because the staggeringly complex nature of a subsurface operation means that the various disciplines have to integrate t |+ Table 1. Professional disciplines within a subsurface team.<ref name=Shepherd_2009>Shepherd, M., 2009, Oil Field Produ
    3 KB (424 words) - 14:54, 10 November 2014
  • Fault seal and migration pathways
    ...hydrocarbons but also the volume of hydrocarbons available to migrate into a trap. ...[[dip]] arrows drawn on maps of the top reservoir can be very misleading. A migration pathway map must use the detailed information available from rout
    2 KB (261 words) - 18:12, 29 March 2022
  • What is permeability?
    | author = Dan J. Hartmann, Edward A. Beaumont ...permeability of a flow unit in a reservoir is not an absolute value but is a relative value that varies with water saturation (see [[Relative permeabili
    5 KB (694 words) - 20:41, 4 April 2022
  • 3-D seismic data: time and horizon slices
    | author = Geoffrey A. Dorn ...map view. This view is key to interpreting these systems because it allows a view of the morphology of the system, which facilitates its recognition.
    4 KB (617 words) - 19:30, 27 January 2022
  • Hydrocarbon column
    This term refers to a vertical measure of the reservoir or trap containing hydrocarbons.
    165 bytes (22 words) - 19:51, 14 April 2014
  • 3-D seismic data: proportional slices and volume visualization
    | author = Geoffrey A. Dorn ...rval is intermediate between the shapes of the interval bounding horizons. A set of slices between the two bounding horizons, which more closely mimics
    3 KB (457 words) - 19:32, 27 January 2022
  • Burial history chart
    ...ock unit (subsidence curve) versus the timing of the essential elements in a petroleum system, including the time interval and critical moment for petro An example of how to construct a burial history chart:
    2 KB (268 words) - 19:15, 25 June 2015
  • Strike
    ...h]], is the orientation of a body or surface, measured where it intersects a horizontal plane. It is perpendicular to true [[dip]]. Strike is usually w
    585 bytes (88 words) - 16:06, 11 September 2014
  • Reef
    ..., Appleton field, Alabama, USA. Figure from Mancini et al.<ref>Mancini, E. A., D. J. Benson, B. S. Hart, R. S. Balch, W. C. Parcell, and B. J. Panetta, ...US Virgin Islands. From Zitello et al.<ref>Zitello, A. G., L. J. Bauer, T. A. Battista, P. W. Mueller, M. S. Kendall and M. E. Monaco, 2009, Shallow-Wat
    2 KB (298 words) - 21:30, 21 November 2014
  • Structural interpretation techniques and tools
    | author = R.A. Nelson, T.L. Patton, S. Serra ...rationists for analyzing various aspects of a structural play. These cover a broad range, both in scale and type, from [[plate tectonic studies]] to mic
    1 KB (182 words) - 17:24, 2 February 2022
  • Pore throat size and connectivity
    | author = Dan J. Hartmann, Edward A. Beaumont ...ve the room at a given rate relative to a smaller tubular-shaped room with a few large doors.
    4 KB (650 words) - 14:23, 4 April 2022
  • Gravity anomaly models
    | author = David A. Chapin, Mark E. Ander ..._fig15-4.png|300px|thumb|{{figure number|1}}Different gravity responses to a body with different positive density contrasts.]]
    4 KB (551 words) - 14:51, 31 January 2022
  • Water saturation distribution in a reservoir
    | author = Dan J. Hartmann, Edward A. Beaumont ...[[Reservoir quality|pore geometry]]. Mapping S<sub>w</sub> distribution in a reservoir helps us predict trap boundaries.
    5 KB (687 words) - 17:09, 5 April 2022
  • Basin framework
    ...n basin]], which in turn is separate from the genetic use of basin to mean a sedimentary basin—the focus of this article. To define a basin, we follow the steps listed in the table below.
    4 KB (518 words) - 16:42, 18 February 2022
  • Seismic survey components
    ...in a [[trace]] called a '''[[prestack trace]]'''. Each prestack trace has a source and receiver coordinate, but the trace is plotted at the point halfw ...MP) stack|stacking]] process, all traces within a bin are summed to create a single stack trace, greatly improving signal quality.
    3 KB (426 words) - 19:05, 27 January 2022
  • AAPG Wiki:Editing the main page
    '''Welcome to AAPG Wiki — a new wiki for subsurface geoscience in the energy industry.''' The gallery section is a bit different because it uses a template call to build the content. The section looks like this:
    3 KB (553 words) - 13:43, 1 July 2014
  • Maturation
    | author = Carol A. Law ...properties|pore fluid chemistry]] can affect the thermal history and thus a rock's rate of maturation.
    3 KB (421 words) - 18:26, 9 February 2022
  • How fault zones affect seal
    ...many factors that could affect a seal, it has been surprising to find such a simple relationship, basin after basin. ...g|300px|thumb|{{figure number|1}}Smear gouge along a normal fault found in a sequence of Permian-Carboniferous sand and shales near Lynemouth, U.K..]]
    4 KB (509 words) - 16:52, 29 March 2022
  • Deasphalting
    ...hane]] and other light hydrocarbons that escape from deep reservoirs enter a shallower oil reservoir.<ref name=Petersetal_2012>Peters, Kenneth E., David
    864 bytes (120 words) - 19:55, 25 June 2015
  • Barnett Shale (Mississippian), Fort Worth Basin, Texas
    '''By Kent A. Bowker, Bowker Petroleum, LLC''' ...nterests in the Barnett Shale to BKV Oil & Gas, a subsidiary of Banpu Pcl (a Thailand-based coal-mining and power-generating firm), for $770 million. T
    3 KB (414 words) - 22:15, 2 June 2021
  • Kinetics
    ...46</sub>-C<sub>55</sub>, C<sub>56</sub>-C<sub>80</sub>), compound type, or a combination thereof.<ref name=Petersetal_2012>Peters, Kenneth E., David J.
    1 KB (203 words) - 19:52, 25 June 2015
  • Overpressure causes
    | author = Edward A. Beaumont, Forrest Fiedler ...ssure. For this situation to occur, the fluid must first be trapped within a rock unit (pressure compartment).
    3 KB (394 words) - 16:23, 16 February 2022
  • Hydrogen Index (HI)
    | author = Carol A. Law ...Congress, Buenos Aires, p. 179–189. ''Discusses the relationships between a number of maturation indicators and petroleum generation and migration.''</
    3 KB (409 words) - 15:33, 10 February 2022
  • Source rock richness
    | author = Carol A. Law ...bon (TOC)]] present in a rock. The two most common techniques of analyzing a rock for TOC are [[Rock-Eval pyrolysis]] with TOC and the [[LECO method in
    1 KB (179 words) - 21:39, 4 February 2022
  • Subregional and local pressure compartments
    | author = Edward A. Beaumont, Forrest Fiedler ...adarko basin. From Al-Shaieb et al.;<ref>Al-Shaieb, Z., J. O. Puckette, A. A. Abdalla, and P. B. Ely, 1995b, [http://archives.datapages.com/data/specpub
    3 KB (440 words) - 17:58, 17 February 2022
  • Saturations required for hydrocarbon flow
    ...ous, interconnected pathway of hydrocarbon-filled pore space. Flow through a seal occurs with saturations of 4.5–17% of the rock pore volume, averagin ...ns of 25–91% may be required.<ref name=ch10r27>England, W., A., Mackenzie, A., S., Mann, D., M., Quickley, T., M., 1987, The movement and entrapment of
    2 KB (313 words) - 13:57, 1 April 2022
  • Seismic data and mapping structure
    | Classic || Mapping a surface of interest (from data) using [[Average velocity|average velocities | Modified Classic || Mapping a surface of interest using a densely drilled shallow horizon, avoiding the weathering layer at the earth
    2 KB (320 words) - 19:10, 27 January 2022
  • AAPG Wiki:Test extensions
    ...al:Version|in the Version page]], it should be working. Feel free to write a test for it here. There should be a map of Tulsa on the right.
    2 KB (358 words) - 14:35, 24 March 2014
  • Seismic attributes in geological interpretation
    | author = Geoffrey A. Dorn ...when approaching the use of [[Basics of seismic attributes|attributes]] in a [[3-D seismic data: the data cube|3-D seismic]] survey:
    4 KB (562 words) - 19:42, 27 January 2022
  • Reservoir system analysis
    | author = Dan J. Hartmann, Edward A. Beaumont ...ir performance affects the economic viability of a play or prospect and is a function of reservoir system quality. Performance is expressed by
    4 KB (547 words) - 18:09, 1 April 2022
  • Special field techniques
    ...particularly useful when making numerous road stops and can be input into a computer for plotting. ...elation. It allows a quantitative tie between surface and subsurface using a measurement common to both: the gamma-ray curve. This kind of tie can be mo
    3 KB (412 words) - 22:40, 1 February 2022
  • Seismic interpretation: surface slicing
    | author = Geoffrey A. Dorn ...e=ch13r12>Stark, T., J., 1996, Surface slice generation and interpretation—a review: The Leading Edge, vol. 15, p. 818–819, DOI: [http://library.seg.o
    4 KB (553 words) - 19:30, 27 January 2022
  • Basin-fill and trap analysis
    | author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks A whole basin or part of a basin can be analyzed for stratigraphic trap potential using the [[sequence
    1 KB (189 words) - 18:53, 4 February 2022
  • Lithofacies
    ...op.edu/faculty/daley/link_to_webpages/courses/geol211/facies.html Creating a lithofacies map]
    370 bytes (49 words) - 16:03, 12 May 2015
  • Seismic data: building a stratigraphic model
    ...ki/Dictionary:Reflection Seismic reflections] are generated where there is a contrast in impedance (which is the product of velocity and density). ...ismogram. Velocity information can come from a variety of sources. Here is a list, in order of preference:
    5 KB (805 words) - 19:06, 27 January 2022
  • Shale gouge ratio
    ...|Figure 1a]] illustrates how this would be calculated, at a given point on a [[fault]] surface, for explicit shale beds (Equation 1): The shale thicknesses are measured in a "window" with a height equal to the throw; therefore, this window represents the column of
    3 KB (473 words) - 20:04, 11 March 2015
  • Using analogs to identify critical elements
    | chapter = Developing a philosophy of exploration | author = Edward A. Beaumont, Norman H. Foster, Richard R. Vincelette, Marlan W. Downey, James
    3 KB (498 words) - 16:03, 18 February 2022
  • Molecular parameter data for oil–oil and oil–source rock correlations
    | author = Douglas W. Waples, Joseph A. Curiale ...r on the relative or absolute abundance of specific molecules in an oil or a [[source rock]] extract.
    2 KB (294 words) - 21:02, 15 February 2022
  • Fracture
    ...specpubs/beaumont/ch02/ch02.htm Classification of exploration traps] in E. A. Beaumont and N. H. Foster, eds., Handbook of Petroleum Geology: Exploring
    951 bytes (136 words) - 20:39, 10 February 2015
  • Magnetotellurics case history: frontier basin analysis (Amazon Basin, Colombia)
    ...moco Production Company] in 1987 and 1988.<ref name=ch16r2>Burgett, W. A., A. Orange, and R. F. Sigal, 1992, Integration of MT, seismic, gravity, and ma ...d equipment was light and compact. Data were collected from 43 sites, with a typical spacing of 10–20 km (6–12 mi).
    4 KB (480 words) - 15:12, 31 January 2022
  • Backstripping
    ...allowing reconstruction of the [[burial history chart|burial history]] in a basin. The method requires decompaction of the remaining sequence of layers
    886 bytes (127 words) - 16:43, 25 June 2015
  • Migration pathway map construction
    A [[migration]] pathway map is a fundamental tool for prospect assessment and field development. In simple [ The following table lists the requirements for constructing a migration pathway map.
    3 KB (405 words) - 18:19, 29 March 2022
  • Toe
    The end point in a wellbore of the lateral section or sections is called the toe. [[file:Mth14ch00f01.jpg|thumb|center|300px|Simple vertical profile of a horizontal well, illustrating basic terms.]]
    1 KB (155 words) - 19:36, 3 March 2016
  • Irati Formation
    ...Milani, E. J., J. H. G. Melo, P. A. Souza, L. A. Fernandes, and A. B. França, 2007b, Bacia do Paraná: Boletim de Geociências da PETROBRAS, v. 15, no. ...in was in a "Sag tectonic style", with a very slow subsidence rate, within a marine ramp system of an inner basin of mixed origin (siliclastic and carbo
    3 KB (500 words) - 20:53, 4 April 2019
  • Production Index (PI)
    | author = Carol A. Law [[Maturation|Maturity]] of a homogeneous source section can be accessed from the production index (PI).
    3 KB (364 words) - 16:10, 10 February 2022
  • Rig personnel
    ...personnel_fig1.png|thumb|300px|{{figure number|1}}Organizational chart for a dynamically positioned drill ship.]] ...asic rig]] includes a toolpusher, a driller, a derrickman, a motorman, and a floorhand.
    3 KB (474 words) - 18:22, 21 January 2022
  • Determining water saturation
    | author = Dan J. Hartmann, Edward A. Beaumont ...kett plot]].<ref name=ch09r45>Pickett, G. R., 1973, Pattern recognition as a means of formation evaluation: The Log Analyst, vol. 14, no. 4, p. 3–11.<
    2 KB (244 words) - 13:38, 5 April 2022
  • 3-D seismic data: the data cube
    ...nal (non-U.S.) seismic prospecting could be as high as 75% 3-D. We live in a 3-D world and now understand that 2-D [[seismic data]] can have many pitfal ...many advantages over a 2-D line or a grid of 2-D lines—even a dense one. (A 2-D grid is considered dense if the line spacing is less than about 1/4 mil
    5 KB (813 words) - 19:05, 27 January 2022
  • Buoyancy pressure
    | author = Edward A. Beaumont, Forrest Fiedler ...ds (oil and water) occur together, they create a buoyancy pressure that is a function of the density difference between the two fluids and the length of
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  • Oil correlation case histories
    ...nal of available tools to avoid misinterpretations arising from the use of a single parameter.
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  • Surficial geochemical case history 2: stratigraphic trap
    ...y]] development there and coincident with the surface geochemical anomaly. A second productive well was drilled at CDP 1096. ...um_fig18-6.png|Figure 1]] is a [[seismic section]] and soil gas profile of a [[stratigraphic trap]] located at approximately [[depth::5,600 ft]] (1.5 se
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  • Seal capacity: pitfalls and limitations of estimation
    ...g to be able to measure the [[Capillary pressure|capillary properties]] of a [[Seal capacity of different rock types|seal]] and then assess hydrocarbon ...[Top seal displacement pressure|displacement pressure]] of a top seal from a few, or many, measurements.
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  • Petroleum system size
    | author = Leslie B. Magoon, Edward A. Beaumont ...udes the total volume of all recoverable hydrocarbons that originated from a single pod of active [[source rock]]. This total volume is used to compare
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  • Structural maps and cross sections
    | author = R.A. Nelson, T.L. Patton, S. Serra ==Basic tools of a structural play==
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  • Oil as an energy source
    | title = Energy: A Historical Perspective and 21st Century Forecast ...[[:file:St54Ch3Figure19.jpg|Figure 1]] depicts global oil production over a 50-year time span.
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  • Rock Eval analysis using hydrogen index (HI) and oxygen index (OI)
    | author = Carol A. Law ...fore, once we know the amount of [[total organic carbon (TOC)]] present in a rock, we then need to know the amount of hydrogen present in order to asses
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  • 3-D seismic data views
    ...or land surveys, there is no uniform definition of in-line and cross-line. A vertical section that is neither in-line nor cross-line is an arbitrary lin Horizontal or subhorizontal cuts through a seismic data cube are called horizontal slices. As illustrated in [[:file:i
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  • Procedure for basin-fill analysis
    | author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks Below is a suggested procedure for basin-fill analysis.
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  • LECO method in estimating richness
    | author = Carol A. Law ...d of estimating [[total organic carbon (TOC)]] uses an instrument known as a LECO carbon analyzer to measure TOC values by combusting the organic carbon
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  • Source rock
    | author = Carol A. Law A '''source rock''' is a rock that is capable of generating or that has generated movable quantities
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  • Seismic sequence analysis
    | author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks ...a188/0001/0000/0001.htm Seismic stratigraphy interpretation procedure], in A. W. Bally, ed., Atlas of seismic stratigraphy: [http://store.aapg.org/detai
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  • Pore system fundamentals
    | author = Dan J. Hartmann, Edward A. Beaumont ...res and pore throats that shares a similar morphology. These elements play a role in determining [[reservoir]] and [[seal]] petrophysics (the characteri
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  • Hydrostatic pressure gradient
    | author = Edward A. Beaumont, Forrest Fiedler ...s. Pressures exceeding hydrostatic pressures may be due to the presence of a [[hydrocarbon column]]. Most methods for determining hydrostatic pressures
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  • Decompaction
    ...of rock units be corrected to their original thickness before burial using a specific porosity-depth function for each [[lithologic]] unit. This involve
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  • Fold trap regime
    | author = Richard R. Vincelette, Edward A. Beaumont, Norman H. Foster ...epositional processes that [[Deformation|deform]] geological surfaces into a curved or nonplanar arrangement.<ref name=Biddle_Weilchowsky1994>Biddle, K.
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  • Fault control on hydrocarbon distribution
    ...r|1}}Example of faults controlling the distribution of hydrocarbons within a Gulf Coast field.]] ...apped reservoir level, the field is divided into three major compartments (A, B, D) by faults. Compartment D is almost always empty, while the other com
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  • Structural exploration workflow
    | author = R.A. Nelson, T.L. Patton, S. Serra ...l-cycle exploration play, where we have a play concept and are looking for a drill location to test it.
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  • Relationships between maturity and hydrocarbon generation
    | author = Carol A. Law ...dicate the top of the oil window. However, this generality applies only if a [[source rock]] is composed of pure type II organic matter (marine kerogen)
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  • Shale smear factor
    ...shale smear continuity. Based on their observations of abrasion smears in a lithified sequence, they define the shale smear factor (SSF) as (see [[:Fil ...s because thin shales give higher SSF and dominate the sum. In such cases, a simple application of SSF values would take the minimum value (most sealing
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  • True resistivity determination
    | author = Dan J. Hartmann, Edward A. Beaumont ...fundamental when analyzing well logs for the presence of hydrocarbons. For a discussion of resistivity concepts see Asquith, 1982.
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  • Synthetic seismograms: correlation to other data
    The goal of using a synthetic seismogram is to match [[stratigraphy]] as seen in well logs or o ...er comparison is made. This continues until a match is achieved. It can be a tedious and time-consuming job, particularly for large projects involving m
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  • Pressure prediction: reconstructing burial history
    | author = Edward A. Beaumont, Forrest Fiedler ...ither burial or faulting of at least an order of magnitude of measurement. A pressure-depth plot, using the estimate of vertical displacement and [[Norm
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  • Pressure prediction: analysis of mud weights
    | author = Edward A. Beaumont, Forrest Fiedler ...d. To control a well, operators generally use a mud weight that will exert a pressure close to the expected pore pressure. When drilling mud kicks or [[
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  • Seismic scale importance
    | author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks ...sequences from the [[Delaware basin|Delaware]] and [[Paradox basin]]s, U.S.A. Copyright: Sarg;<ref name=Sarg1988>Sarg, J. F., 1988, Carbonate sequence s
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  • Utica Shale, Ohio, Pennsylvania, West Virginia and Kentucky
    ...tion is coming from the lower organic rich section Point Pleasant interval a lateral equivalent of the upper portion of the Trenton Limestone. The Point ...western Pennsylvania is proving the play is living up to it’s potential as a Giant underneath the Marcellus above.
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  • Mapping paleogeography
    | author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks The table below outlines a procedure for making paleogeographic maps.
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  • Midale water saturation and pore geometry
    | author = Dan J. Hartmann, Edward A. Beaumont ...[[Basic_open_hole_tools#Resistivity|resistivities]] for packstones (group A) and lower resistivities for mudstones (group B), reflecting the higher wat
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  • Percent fill: controlling factors
    ...ocarbons compared with its total volume. Percent fill can be controlled by a number of factors, including the following: ...t]] limits the percent fill to the juxtaposed lithology leak point (JLLP). A [[dip]]-leaking fault limits the percent fill to the fault plane leak point
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  • Petroleum system
    | author = Leslie B. Magoon, Edward A. Beaumont The [[petroleum]] system is a unifying concept that encompasses all of the disparate elements and process
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  • Basin-centered gas systems
    ...ver, the magnitude and function of some of the components interact to form a unique type of hydrocarbon accumulation. ...prone and liquid-prone source rocks have contributed to the development of a BCGA.
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  • Isochron
    ...x|{{figure number|1}}(a) Block diagram showing the time that Is mapped for a time slice map. (b) Interval that is mapped on time interval map. (c) Time
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  • Magnetotellurics survey measurements
    Two basic alternating current (AC) measurements are taken in an MT survey: a horizontal magnetic field (H-field) measurement and an electrical field (E- ...ed with a horizontally oriented magnetic coil. The tipper is measured with a vertically oriented coil.
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  • EMD Tight Oil & Gas Committee Annual Reports
    '''What the Reports are and a general process for the creation?''' The tight oil and gas (TOG) technical committee created a written report (PDF) annually, focusing on new developments, play concepts,
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  • Water saturation
    | author = Dan J. Hartmann, Edward A. Beaumont Water saturation (S<sub>w</sub>) of a reservoir is a function of height above [[Free water level|free water]] (h) and pore type.
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  • Geometrical analysis
    | author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks ...n is a geometrical analysis of stratigraphic components of the basin fill. A geometrical analysis consists of (1) dividing the stratigraphic section int
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  • Porphyrins and high-performance liquid chromatography (HPLC)
    | author = Douglas W. Waples, Joseph A. Curiale ...ar porphyrin distributions for the oil and the source rock extract suggest a plausible positive correlation, which in this case was supported by other g
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  • Bend
    A bend (or curve) is the length of the [[horizontal well]] from the [[kickoff [[file:Mth14ch00f01.jpg|thumb|center|300px|Simple vertical profile of a horizontal well, illustrating basic terms.]]
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  • Classification basis
    | author = Richard R. Vincelette, Edward A. Beaumont, Norman H. Foster All classification schemes have a basis from which they are organized. Some are more organized and systematic
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  • Structural domains
    | author = R.A. Nelson, T.L. Patton, S. Serra A structural domain is an areally distinct region or subregion with similar s
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  • Normal hydrostatic pressure
    | author = Edward A. Beaumont, Forrest Fiedler
    3 KB (480 words) - 13:47, 16 February 2022
  • Sequence stratigraphy: hierarchy of sequences
    | author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks ...l sequence deposition for petroleum exploration. A third-order sequence is a composite of fourth- and fifth-order sequences.
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  • AAPG Wiki:Privacy policy
    ...e shared with moderators associated with the edited page, in case there is a need for clarification on the suggested edits. When making an edit or creating a new page on '''{{SITENAME}}''', contributors agree to these uses of contact
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  • Log interpretation: initial quick scan
    ...ing: the mudlog|mud-log analysis]], nearby production, etc., before making a decision to set pipe. ...onreservoir can be helpful, even with access to computer-aided processing. A good scanning technique not only identifies the reservoirs, but can also gi
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  • Structural lead and prospect delineation
    | author = R.A. Nelson, T.L. Patton, S. Serra ...the [[petroleum system]] relative to a structural lead. Many companies use a mixture of these issues to assess exploration risk, employing various numer
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  • Build rate
    ...s the rate, measured in degrees per unit length, at which the well path of a [[horizontal well]] moves through the bend (curve) from vertical or high-an [[file:Mth14ch00f01.jpg|thumb|center|300px|Simple vertical profile of a horizontal well, illustrating basic terms.]]
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  • Quantitative biostratigraphy
    ...s, compositing data from many different stratigraphic sections to serve as a reference standard that will overcome inconsistencies that may be encounter ...ranking fossil occurrences according to the geological time represented in a set of reference sections. This approach has broad applications to solving
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  • Fault seal breakdown during production
    ...fault will [[Cross-leaking faults|cross-leak]].<ref name=ch10r76>Smith, D. A., 1966, [http://archives.datapages.com/data/bulletns/1965-67/data/pg/0050/0 ...iently rapid, or the fault has sufficiently low [[permeability]], to cause a large pressure differential across the fault. The change from sealing to le
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  • Province, basin, system, play, and prospect
    | author = Leslie B. Magoon, Edward A. Beaumont ...[[fold]] belt could be a structural province or a petroleum province, not a basin.
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  • AAPG Wiki:About
    '''AAPG Wiki''' is part of a community of subsurface wikis including [http://wiki.seg.org SEG Wiki] and ...ounding in 1917, the American Association of Petroleum Geologists has been a pillar of the world-wide scientific community. The original purpose of AAPG
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  • Heel
    ...of the [[bend (curve)]] and the beginning of the [[lateral]] section(s) of a [[horizontal well]]. [[file:Mth14ch00f01.jpg|thumb|center|300px|Simple vertical profile of a horizontal well, illustrating basic terms.]]
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  • Structural exploration: location selection
    | author = R.A. Nelson, T.L. Patton, S. Serra ...(e.g., clearly defined [[Seismic data|seismic reflectors]] to help define a crestal position). Other structural play concepts may require off-crestal p
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  • Magnetotellurics
    ...ives poor results. This is the same physical parameter that is measured in a borehole [[Basic_open_hole_tools#Resistivity|resistivity log]]. ...6-1.png|thumbnail|300px|{{figure number|1}}Simplified relationship between a lithologic log, an electric log, an MT sounding, and an inversion run using
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  • Growth fault
    A fault along which movement occurs as sediments are deposited on and above t ...the downthrown side. This indicates that faulting occurred repeatedly over a long period of time, while the sediments were being deposited. Such faults
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  • Seismic data: identifying reflectors
    ...pare the object to [[seismic trace]]s in the vicinity of the well and find a fit. ...ant to realize that a sonic log never goes to the surface; there is always a gap for the [[surface casing]]. We do not expect time zero on the converted
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  • Magnetotellurics case history: Precambrian overthrust (Northwestern Colorado)
    ...dia:Electrical resistivity and conductivity|conductive]] sediments beneath a [[Wikipedia:Electrical resistivity and conductivity|resistive]] thrust plat ...prings area of northwestern Colorado is an example.<ref name=ch16r5>Mills, A., 1994, Zephyr Geophysical Services, personal communication.</ref>
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  • Pore systems
    | author = Dan J. Hartmann, Edward A. Beaumont ...perience and laboratory analysis show that these pore type categories have a particular behavior when interacting with fluids that can be used to predic
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  • Abnormal hydrostatic pressure
    | author = Edward A. Beaumont, Forrest Fiedler Abnormal hydrostatic pressure is a departure from normal fluid pressure that is caused by geologic factors. Th
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  • Surficial geochemical case history 3: Predrill–postdrill comparison
    ...the full spectrum of [[trap]] styles; survey areas ranged from as small as a few hundred acres to regional programs covering 1,000 mi<sup>2</sup> (2,590 ...urveys led to the drilling of 141 wells in previously undrilled prospects. A total of 43 wells were drilled in negative geochemical anomalies, and 41 of
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  • Regression
    ...8120-01.htm?v=chapter&i=08120.01&s=08000&n=00120&o=|11000| Animation. with a sample seismic line]
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  • Interval transit time
    This is the inverse of velocity and is what is displayed on a sonic log, usually in units of μs/ft or μs/m. It is also seen as ''delta
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  • Reservoir drive mechanisms
    | author = Dan J. Hartmann, Edward A. Beaumont ...drive mechanism supplies the energy that moves the hydrocarbon located in a reservoir container toward the wellbore as fluid is removed near the wellbo
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  • Surficial geochemistry: limitations and uncertainties
    While the potential benefits of a successful surface geochemical exploration program are very real and can si ...s generally no simple one-to-one correlation between a surface anomaly and a subsurface [[accumulation]]. Some anomalies approximate the productive limi
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  • Limestone
    [[File:1024px-Limestone Formation In Waitomo.jpg|400px|thumb|A limestone formation in the Waitomo District of New Zealand. Photo by [https
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  • Fault seal behavior
    ...6/0148-9062(80)90004-2</ref><ref name=ch10r71>Skerlec, G. M., 1990, SEALS: A short course for risking top seal and fault seal: Franklin, Pennsylvania, S ...hydrocarbons. The ability to identify these fault-dependent leak points is a fundamental tool for prospect assessment.
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  • AAPG Wiki:Personas
    ...w will I use the wiki? For example, to search for technical information on a just in time, just enough basis; to contribute to technical information? * A user survey could inform and validate the personas
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  • Douglas K. Strickland
    ...elt in 2004, and subsequently Utah’s Providence Field. The fields comprise a 100-million-barrel province in an area the U.S. Geological Survey had deeme ...fter earning a doctorate at the University of Kansas, previously receiving a bachelor’s degree from the University of Southern Colorado and master’s
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  • Free water level determination using pressure
    | author = Edward A. Beaumont, Forrest Fiedler ...ining free-water level (FWL) by projecting RFT pressure data downward from a reservoir to the aquifer.]]
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  • Pore and pore throat sizes
    | author = Dan J. Hartmann, Edward A. Beaumont ...lar to fluid flow and fitting within its narrowest point. Absolute size of a pore is the radius of the largest sphere that will fit inside it. The cross
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  • Minibasins and petroleum systems
    ...ion]]-[[migration]]-[[Trap|entrapment]] history. This information provides a template for further exploration for subtle traps along the [[migration]] a ...ortant aspect of foreland basins.<ref name=ch04r60>MacQueen, R. W., and D. A. Leckie, eds., 1992, Foreland Basins and Fold Belts: [http://store.aapg.org
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  • Hydrodynamic influence on trapping
    | author = Edward A. Beaumont, Forrest Fiedler Under hydrodynamic conditions, the potential for a hydrocarbon column (Φ<sub>h</sub>) is related to the potential of the wate
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  • Kerogen type and quality: visual assessment
    | author = Carol A. Law ...ification. We can then examine the kerogen using transmitted light through a microscope to determine its form (structured or amorphous) and origin. Stru
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  • Rock-Eval pyrolysis
    | author = Carol A. Law ...rolysis to measure richness and maturity of potential [[source rock]]s. In a pyrolysis analysis, the organic content is pyrolyzed in the absence of oxyg
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  • Geosteering
    ...llbore in the designated target is called Geosteering. Geosteering can use a large variety of tools and techniques, including logging while drilling (LW [[file:Mth14ch00f01.jpg|thumb|center|300px|Simple vertical profile of a horizontal well, illustrating basic terms.]]
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  • Seal and hydrocarbon yield estimates
    ...er than the volume now trapped. The additional hydrocarbons spilled across a fault-dependent leak point and migrated updip. If these fault-dependent lea
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  • Combination trap
    | author = Richard R. Vincelette, Edward A. Beaumont, Norman H. Foster ...imary trapping agent. [[Structural trap system|Structural traps]] may have a [[Stratigraphic trap|stratigraphic]] component or vice versa. Sometimes the
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  • Trap
    | author = Richard R. Vincelette, Edward A. Beaumont, Norman H. Foster The earliest concept of a trap was made by William Logan in 1844 when he noted the occurrence of oil
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  • Sabkha
    A salt flat.
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  • AAPG Wiki:Users
    ...bs, and do strange things. Here are some examples of roles we might apply, a sort of minimal set: | '''Administrator''' || 10 || Single sign-on || Yes || All || A handful of designated people who wield all power
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  • Laurentia
    '''Laurentia''' ('''North American Craton''') is a large continental [[craton]], which forms the ancient geological core of th ...amorphic rock|metamorphic]] and [[igneous rock]] that is mostly covered by a relatively thin cover of younger sedimentary rock. Geologists call these lo
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  • Sedimentary basin analysis
    * Local basins—local structural and stratigraphic compartments within a depocenter ...n. Reconstructing a basin's history, from regional [[tectonic setting]] to a single local basin, provides the geologic framework for defining exploratio
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  • Seal thickness
    ...s with thick shale seals that are [[dry]]. This difficulty in establishing a relationship between seal thickness and column is especially true since man ...chem1/data/a028/a028/0001/0000/0015.htm Worldwide geological experience as a systematic basis for prospect appraisal], in Demaison, G., Murris, R., J.,
    3 KB (464 words) - 20:56, 31 March 2022
  • Postaccumulation cementation
    | author = Alton A. Brown Although the presence of a petroleum phase may retard [[diagenesis]] in an [[accumulation]], sooner or
    3 KB (430 words) - 15:35, 1 February 2022
  • Total organic carbon (TOC)
    | author = Carol A. Law The amount of organic carbon present in a rock is a determining factor in a rock's ability to generate hydrocarbons.
    3 KB (428 words) - 16:33, 13 April 2022
  • Total measured length
    Total measured length (TML) is the total length of a [[horizontal well]] from the surface datum to the toe. In general, it is re [[file:Mth14ch00f01.jpg|thumb|center|300px|Simple vertical profile of a horizontal well, illustrating basic terms.]]
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  • Strain analysis of top seals
    ...(mechanics)|stress]], the advantage of strain analysis is that it provides a practical tool prior to drilling for evaluating prospects using [[seismic ...be lost from a typical North Sea field, assuming a fractured top seal with a relatively low fracture [[permeability]] of only 0.05 md, is more than 100
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  • Regional pressure compartments
    | author = Edward A. Beaumont, Forrest Fiedler ...relate with the top and bottom seals of a regional pressure compartment in a foreland basin.]]
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  • Pc curves and saturation profiles
    | author = Dan J. Hartmann, Edward A. Beaumont ...ssure]] (P<sub>c</sub>) curves for the flow units it contains. The data in a P<sub>c</sub> curve can be converted to give the following:
    5 KB (752 words) - 16:53, 4 April 2022
  • Predicting hydrocarbon recovery
    | author = Dan J. Hartmann, Edward A. Beaumont ...sub>. Estimating hydrocarbon volume in place before [[drilling a well]] is a matter of predicting pore volume and S<sub>w</sub>. Recovery of hydrocarbon
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  • Parasequences (fourth- and fifth-order sequences)
    | author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks ...ocenter#Sediment_supply_rate_and_facies_patterns|progradational]] and have a shoaling-upward association of facies.<ref name=ch21r47>Van Wagoner, J. C.,
    5 KB (619 words) - 22:26, 3 February 2022
  • Transgression
    ...8120-01.htm?v=chapter&i=08120.01&s=08000&n=00120&o=|11000| Animation. with a sample seismic line]
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  • Normal hydrostatic pressure gradients
    | author = Edward A. Beaumont, Forrest Fiedler ...formation water gradient of 0.45 psi/ft is common. In the U.S. Gulf Coast, a gradient of 0.465 psi/ft is common.
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  • Predicting carbonate porosity and permeability
    | author = Dan J. Hartmann, Edward A. Beaumont ...]] increases the chances of predicting the quality of reservoir needed for a successful play. Sequence stratigraphic models are especially useful for mo
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  • Capillary pressure (Pc) curves: pore throat size determination
    | author = Dan J. Hartmann, Edward A. Beaumont ...e controlled by pore throats of a given size (usually given in microns) to a given [[capillary pressure]].
    6 KB (898 words) - 16:21, 4 April 2022
  • How faults control trap fill and migration pathways
    A sealing fault can trap hydrocarbons but also will act as a barrier for hydrocarbon [[migration]] into [[trap]]s beyond that fault. In ...migrate. It can also act as a barrier along part of the fault plane and as a conduit along other parts of the fault plane.
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  • Introduction to reservoir engineering methods
    * [[Conducting a reservoir simulation study: an overview]]
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  • Holocene
    ...jpg|thumb|300px|Holocene volcano near Veyo, Utah. Photograph taken by Mark A. Wilson (Department of Geology, The College of Wooster), July 2008.]]
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  • Vitrinite reflectance
    | author = Carol A. Law ...rock. It is referred to as %R<sub>o</sub>. Results are often presented as a mean R<sub>o</sub> value based on all vitrinite particles measured in an in
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  • Economics
    ...g the exorbitant issues affecting demand and supply of the oil resource at a global scale. ...il price trends have shown a general decline and this can be attributed to a supply strain as shown in the figure below.
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  • Magnetic field: local variations
    | author = Edward A. Beaumont, S. Parker Gay ==Elevation change due to a fault==
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  • Diagenetic trap regime
    | author = Richard R. Vincelette, Edward A. Beaumont, Norman H. Foster ...omitization]]. || colspan = 2 | Secondary [[dolomite]] reservoirs; Form as a result of localized secondary dolomitization.
    5 KB (645 words) - 16:14, 13 April 2022
  • Scientific method: application to exploration
    | chapter = Developing a philosophy of exploration | author = Edward A. Beaumont, Norman H. Foster, Richard R. Vincelette, Marlan W. Downey, James
    6 KB (808 words) - 15:30, 18 February 2022
  • Reservoir simulations and field unitization
    ...ay be required for producing residual oil accumulations missed by assuming a laterally continuous reservoir. ...ressure gradient: plotting|leaking faults]].<ref name=ch10r43>Knutson, C., A., Erga, R., 1991, Effect of horizontal and vertical permeability restrictio
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  • Carbonate facies
    | author = Dan J. Hartmann, Edward A. Beaumont ..., Hastings, B., S., Kendall, C., G. St. C., Posamentier, H., W., Ross, C., A., Van Wagoner, J., C., eds., Sea Level Changes: An Integrated Approach: SEP
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  • Seismic data: analyzing individual reflectors
    | author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks
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  • Seed bag
    A [http://books.google.com/books?id=5mjaZXcPEzkC&pg=PA124&lpg=PA124&dq=seed+b
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  • Stratigraphic trap system
    | author = Richard R. Vincelette, Edward A. Beaumont, Norman H. Foster ...s for stratigraphic trap systems are stratigraphic in nature and formed as a result of depositional, erosional, or diagenetic processes. These processes
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  • Charge volume
    The volume of hydrocarbons expected to be delivered to a trap is an important risk parameter. This section covers methodology and in Certain factors constrain the amount of hydrocarbon delivered to a trap. These factors can be divided into two groups, as shown below.
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  • Energy: historical sources
    | title = Energy: A Historical Perspective and 21st Century Forecast ...:AAPGSt54Figure1.JPG|Figure 1]] depicts the changes of energy sources over a 150-year period.
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  • Combining well log with seismic sequence analysis
    | author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks ...a188/0001/0000/0001.htm Seismic stratigraphy interpretation procedure], in A. W. Bally, ed., Atlas of Seismic Stratigraphy: [http://store.aapg.org/detai
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  • Black Warrior basin
    ...rrior basin.<ref name=Bolandetal_1971>Boland, L. F., E. D. Minihan, and W. A. Thomas, 1971, [http://archives.datapages.com/data/bulletns/1971-73/data/pg The Black Warrior Basin is a triangular tectonic basin bounded on the north by the Ozark uplift–Pascol
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  • Diffusive seal leakage
    | author = Alton A. Brown ...illion years (e.g., Montel et al.<ref name=ch11r26>Montel, F., G. Caillet, A. Pucheu, and J. Caltagirone, 1993, Diffusion model for predicting reservoir
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  • Fault plane profile construction
    ...t plane profiles are a fundamental tool for prospect assessment as well as a first step in understanding [[seal]] behavior in existing fields. Fault pla * It is a cross section in the plane of the fault rather than normal to the fault.
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  • Geological fieldwork benefits
    ...more sophisticated exploration techniques, the cost of a field program is a bargain. Acquiring, processing, and interpreting [[seismic data]], for exam Geological fieldwork can provide a competitive advantage. Fieldwork results can advance specific business reco
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  • Fault seal analysis example: Gulf Coast
    ...quantitative fault seal analysis. This discussion contains an example from a field in the Gulf Coast and demonstrates the application of routine fault s ...fig10-26.png|300px|thumb|{{figure number|1}}FPP of a portion of a fault in a Gulf Coast field.]]
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  • Tmax
    | author = Carol A. Law ...C. [[:file:evaluating-source-rocks_fig6-6.png|Figure 1]] shows output from a pyrolysis analysis and when T<sub>max</sub> is recorded.
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  • Migration pathway
    ...r small size) and in discrete time intervals. It leaves either no trace or a trace that is continually modified or destroyed by later events. Effective ...f petroleum from a mature [[source rock]] to a trap can be estimated using a few simple [[assumptions]]:
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  • Ammonite
    [[File:Haeckel Ammonitida.jpg|thumb|300px|A variety of ammonite forms, from Ernst Haeckel's 1904 Kunstformen der Natur
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  • Limitations of quantitative fault seal analysis
    Quantitative fault seal analysis is a proven tool in numerous basins. There are, however, limitations. ...is thus much greater in a production setting or mature basin than it is in a frontier setting.
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  • Molecular fossils
    ...s, sediments, fossils, or oils that can be reliably associated with one or a few biotic antecedents. The term “molecular fossil” is limited here to ...ar fossils can be correlated with source organisms that were restricted to a limited range of environments. Recognizing these molecules in sediments or
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  • Geology
    ...opportunity to examine Eagle Ford Shale outcrops at various scales across a sizable area. Photo by Art Donovan. Courtesy of the AAPG Explorer. See more ...chives.datapages.com/data/bulletns/1944-48/data/pg/0028/0007/0850/0897.htm A challenge to geology]: AAPG Bulletin, v. 28, no. 7, p. 897-901.</ref></bloc
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  • Top seal ductility estimation
    The [[Seal ductility|ductility of a top seal]] can be estimated (1) by using laboratory data and log-derived de The [[ductility]] of a shale top seal is a function of compaction state. Uncompacted, low-density shales are extremely
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  • Tertiary migration
    [[Hydrocarbon migration|Migration]] to the surface, either from a [[reservoir]] or [[source rock]]. Also called dismigration.
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  • Seal capacity
    ...of seal capacities have been reported for various rock types. In addition, a number of other factors—depth, hydrocarbon phase, seal thickness, fault-d
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  • Natural hydraulic fracturing example, North Sea
    ...hydraulic fracturing]]. This trap is a low-relief [[salt structure]] with a [[dry hole]] and has less-than-sufficient [[strain]] to [[fracture]] the to * A fossil [[oil—water contact]] exists at the [[Syncline|synclinal]] [[spill
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  • Formation fluid pressure from drill stem tests
    | author = Edward A. Beaumont, Forrest Fiedler ...blems, and assessing the reliability of a DST is often more of an art than a science.
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  • Tectonics
    [[File:Tectonic_plate_boundaries.png|thumb|400px|A cross section illustrating the main types of tectonic plate boundaries.]]
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  • Gravity in petroleum exploration
    | author = David A. Chapin, Mark E. Ander ...rock [[density]]. Surface gravity surveys and subsurface surveys made with a [[borehole gravity]] meter are effective in locating [[fault]]s and geologi
    1 KB (187 words) - 17:53, 25 January 2022
  • Pressure compartment seals
    | author = Edward A. Beaumont, Forrest Fiedler A seal can be either a pressure seal, a capillary seal, or both. They are defined as follows:
    5 KB (763 words) - 17:58, 17 February 2022
  • Relative permeability
    | author = Dan J. Hartmann, Edward A. Beaumont ...Relative permeability can be expressed as a number between 0 and 1.0 or as a percent. Pore type and formation [[wettability]] affect relative permeabili
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  • Synthetic seismogram
    ...te a synthetic seismic trace. This trace closely approximates a trace from a seismic line that passes close to the well in which the logs were acquired. ==Calculating a synthetic seismogram==
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  • Primary migration and compositional changes
    ...analysis|composition of hydrocarbons]] expelled from a [[source rock]] is a primary control on the composition of reservoired hydrocarbons. In general, The following factors favor oil expulsion from a source rock:
    3 KB (438 words) - 15:17, 14 February 2022
  • Hydrodynamic traps: mapping
    | author = Edward A. Beaumont, Forrest Fiedler # Make a water isopotential map with respect to oil or gas, using the formula for V,
    4 KB (601 words) - 22:27, 17 February 2022
  • Structural fairway prospectivity
    | author = R.A. Nelson, T.L. Patton, S. Serra ...iguration, and major elements of the hydrocarbon system combine to present a likely scenario for an economic [[accumulation]] of hydrocarbons.
    3 KB (340 words) - 18:50, 3 February 2022
  • Diagenetic traps: criteria for recognition
    | author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks ...t early on in a play to consider if [[Diagenesis|diagenetic]] changes play a major role in [[trap]] modification. [[Production testing|Test]], productio
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  • Offshore exploration and exploitation
    ...s necessary make indirect exploration, which, if it is successful, goes to a direct exploration, and if that is also successful, ends finally in an expl ...d as reference. These fields are registered by a magnetometer installed in a plane that flies over the interest zone. Sedimentary formations with hydroc
    5 KB (708 words) - 22:00, 10 April 2019
  • Tertiary
    The Tertiary is a term that is no longer preferred. It has been replaced by Paleogene and Neo
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  • Top and fault seal evaluation
    ...tense [[deformation]] in excess of top [[seal ductility]] can [[fracture]] a top seal. In addition, sufficiently high pore pressures in excess of the fr ...percent fill without the ability to risk seal (top or fault) is reduced to a statistical guessing game. They control the vertical and lateral distributi
    4 KB (528 words) - 17:48, 24 March 2022
  • How to plot the strike data to the Rosette diagram
    ...ch a planar feature is inclined to the horizontal plane; it is measured in a vertical plane perpendicular to the strike of the feature.<ref>http://www.b ...ined easily with left hand rule. They also can be measured accurately with a Brunton compass. Parts of the Brunton Compass, as explained by [[:File:Brun
    5 KB (747 words) - 18:47, 26 March 2019
  • Artificial lift
    A number of different types of artificial lift systems are currently in use. An electric submersible pump (ESP) consists of a centrifugal pump coupled to an electric motor. The pump and motor combinati
    7 KB (1,094 words) - 20:47, 19 January 2022
  • Using a tectonic history model for petroleum system analysis
    ...essential elements and processes of the [[petroleum system]]s in a basin. A basin such as the [[Gulf of Mexico]] can have more than one petroleum syste ...he petroleum systems within the High Island–East Breaks area. Following is a summary of the tectonic history of the basin.
    4 KB (518 words) - 16:35, 22 February 2022
  • Cambrian
    ...Cambrian) near Field, British Columbia, Canada.; Photograph taken by Mark A. Wilson (Department of Geology, The College of Wooster), August 2009.]]
    563 bytes (70 words) - 18:08, 2 February 2015

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