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• Archie equation
  ...true resistivity of the formation, corrected for invasion, borehole, thin bed, and other effects ...ne, or fresh formation waters make SP calculations uncertain || Use [[thin-bed correction]] or another method
  5 KB (703 words) - 13:52, 5 April 2022
• Petroleum source rock formation
  ...Demaison, G. J., and G. T. Moore, 1980, Anoxic environments and oil source bed genesis: American Association of Petroleum Geologists Bulletin, v. 64, p. 1
  2 KB (296 words) - 17:35, 13 April 2022
• Vibro-sesismic to increasing the production rate of coal bed methane
  ==Coal bed methane== ...(CBM) is a gas contained in [[coal]] layer. This gas is a fraction of coal bed gas (CBG), natural gas that produced from a coal layer. There are some othe
  11 KB (1,551 words) - 16:49, 11 January 2016
• Factors that cause migration
  ...he force responsible for transferring the hydrocarbon phase to the carrier bed, resulting in downward as well as upward [[Calculating charge volume|chargi
  6 KB (918 words) - 15:16, 14 February 2022
• Influence of mechanical stratigraphy on deformation styles
  ...cal stratigraphy and existence of two fracturing events over time (Fig.7). Bed-contained joints formed when the rigidity contrast (uncemented sandstone) b ...factors which include rigidity of rock layers, relative thickness of each bed, and the interference contrast between layers. These mechanical conditions
  23 KB (3,162 words) - 17:28, 5 December 2023
• Fluid-composition trap regime
  | colspan = 3 | ''[[Coal bed methane]];'' [[Coal]] beds trap large volumes of [[Wikipedia:Methane|methan
  3 KB (402 words) - 16:31, 13 April 2022
• Setting and structure of the Sorrento field
  ...and-performance_fig9-86.png|Figure 2]], structure [[contour]]s on a marker bed above the [[Morrow Sandstone]] reflect the irregular thickness of the sands
  3 KB (429 words) - 14:19, 11 April 2022
• Syncline
  ...a syncline may now be described as a part of a fold which has the youngest bed of the strata in its core or center of the structure which has been folded.
  3 KB (505 words) - 15:58, 21 March 2019
• Dipmeter
  ==Thin bed resolution== [[file:dipmeters_fig3.png|thumb|300px|{{figure number|3}}Example of thin bed laminated sandstone-shale resolution by means of a dipmeter correlation cur
  14 KB (2,128 words) - 17:25, 18 January 2022
• Structurally complex reservoirs: evaluation
  ...istance 2 from the rollover up to regional elevation of the same reference bed is transferred to 2′; likewise, 2′ + 4 is transferred to 4&prim ...ction from which measurements of bed lengths are made. Bed thicknesses and bed lengths are generally retained so that the deformed and undeformed cross se
  20 KB (2,865 words) - 19:24, 19 January 2022
• Seismic data: analyzing individual reflectors
  * Thin-bed analysis
  4 KB (481 words) - 18:20, 4 February 2022
• Erosional trap regime
  ...unconformity. || Regional subcrop; Uniformly or gently dipping reservoir bed beneath an unconformity. Top seal is provided by superunconformity beds; bo
  5 KB (588 words) - 16:13, 13 April 2022
• Pore system shapes
  ...true resistivity of the formation, corrected for invasion, borehole, thin bed, and other effects
  4 KB (528 words) - 13:53, 4 April 2022
• Coal bed methane (UDip)
  ...s which many countries have been started to be explored seriously and coal bed methane is kind of renewable energy. CBM is notably different from a typica
  10 KB (1,576 words) - 14:42, 2 April 2019
• Introduction to biosteering operation
  ...ay be thin < 10 ft in thickness escaping seismic resolution even with thin bed inversions. Without high resolution seismic profile and the lack of LWD too ...was used to pilot the hole along the oil-water contact with full accuracy. Bed thicknesses differed from prognosed but precise monitoring of well trajecto
  20 KB (2,916 words) - 21:04, 21 April 2022
• Stratigraphic trap seals
  ...he top and lateral seals to the “A” sandstone reservoir. The [[dolostone]] bed separating reservoir sandstones “A” and “B” provides the bottom sea
  5 KB (632 words) - 20:26, 3 February 2022
• How faults control trap fill and migration pathways
  ...aults]] can act as barriers as long as the [[permeability]] of the carrier bed is higher than that of the fault. [[Hydrocarbon]]s can then migrate paralle
  5 KB (785 words) - 17:04, 29 March 2022
• Interpreting gravity measurements
  ...ateral]] changes. Layer-cake geology yields no anomalous gravity signal. A bed is considered infinite and horizontal if it is about five times wider in al
  5 KB (725 words) - 18:00, 24 January 2022
• Fault plane profile construction
  ...nt fill for other sands is constrained by the JLLPs.<ref name=ch10r2 /> If bed dips in the hanging wall allow entrapment against the fault, hydrocarbons c
  6 KB (834 words) - 14:51, 29 March 2022
• Spontaneous potential logs in water resistivity calculation
  * SP reading from a porous zone at least [[length::20 ft]] thick. (A bed thickness correction is necessary if the zone SP is measured from is less t
  6 KB (1,027 words) - 16:40, 5 April 2022
• Hydrocarbon migration
  ...e [[secondary migration]] moves petroleum through a coarse-grained carrier bed or fault to a reservoir or seep. [[Tertiary migration]] occurs when petrole
  6 KB (865 words) - 14:33, 6 April 2016
• Well log sequence analysis
  ...etween wells that have biostratigraphic-time correlations, well log marker-bed correlations, and the global sea cycle chart.
  6 KB (845 words) - 16:53, 4 February 2022
• Migration pathway
  ...the stratigraphic variation within the basin. Within the carrier/reservoir bed, the migration pathway is controlled by the structural configuration of the
  6 KB (889 words) - 16:50, 29 March 2022
• Arecuna field
  ...the interwell areas. The Arecuna reservoirs are interpreted as deposits of bed-load and mixed-load fluvial systems. Depositional systems of genetic strati Methods14ch08f07.jpg|{{figure number|7}}The bed-load fluvial system of the Canterbury Plain, New Zealand, is a modern analo
  16 KB (2,381 words) - 19:03, 11 March 2019
• Migration by solution in water
  ...vely continuous process, forming a cloud of bubbles throughout the carrier bed system. A free-phase transport mechanism is then needed to accumulate these
  6 KB (915 words) - 15:16, 14 February 2022
• Fracture threshold in the real world
  ...son%27s_ratio%20Poisson's%20ratio Poisson's ratio] depend on lithology and bed geometry as well as depth and compaction.<ref name=ch10r52 />
  6 KB (930 words) - 15:49, 30 March 2022
• Procedure for geometrical analysis
  * Bed truncation observed in detailed well log [[cross section]]s
  6 KB (862 words) - 15:20, 4 February 2022
• Petrophysical analysis of Sorrento field wells
  ...40%). The discrepancy suggests that the log resistivity was too low due to bed resolution problems. If true resistivity is 9 ohm-m²/m (used for
  7 KB (956 words) - 17:24, 11 April 2022
• Surficial geochemical interpretation guidelines
  ...nt hydrocarbon leakage from an [[accumulation]] or leakage along a carrier bed or other migration pathway. Anomalies defined by multiple samples from one
  8 KB (1,128 words) - 22:24, 31 January 2022
• Seismic data preparation for mapping
  ...lative age (1 = most recently active, etc.). Red arrows show stratigraphic bed terminations. The arrowhead indicates whether termination is from above or
  7 KB (1,064 words) - 19:11, 27 January 2022
• Types of wells
  ...A horizontal well will be geosteered through a target zone by assuming the bed dip. If the assumed dip is wrong, the well may exit the target zone. Proble ...This can give enough warning to allow the well to be steered away from the bed boundary.
  22 KB (3,567 words) - 17:20, 11 March 2019
• Factors that oppose hydrocarbon migration
  ...ase is generally assumed to form one or more continuous networks through a bed when its concentration exceeds between 4.5% and 17% of the pore volume.
  8 KB (1,133 words) - 15:16, 14 February 2022
• Geological heterogeneities
  ...ing of structure, [[fluid contacts]], [[porosity]], bed thickness, lateral bed continuity, and various other attributes of reservoirs using three-dimensio
  17 KB (2,232 words) - 21:22, 19 January 2022
• Reservoir
  ...iver.jpg|300px|right|thumbnail|{{figure number|4|}}Change in grain size of bed load in Mississippi River from Cairo, Illinois, to the mouth. (Form U.S. Ar
  14 KB (2,134 words) - 16:48, 26 March 2019
• Depositional environments
  ...y gravel-sized sediments and show down-fan decreased in [[grain size]] and bed thickness and an increase in sediment sorting. The characteristics of debri ...nment. The basal zone is the area where erosion and plucking of underlying bed happens. The supraglacial zone and ice-contact zone are zones of melting wh
  26 KB (3,851 words) - 20:38, 28 February 2019
• Making regional tectonic maps
  ...illustrating three possible hydrocarbon migration pathways and related sea-bed features. Based on data from Lovely and Ruggiero.<ref name=Lovely&RuggieroP
  8 KB (1,069 words) - 20:03, 18 February 2022
• Well types
  ...A horizontal well will be geosteered through a target zone by assuming the bed [[dip]]. If the assumed dip is wrong, the well may exit the target zone. Pr ...This can give enough warning to allow the well to be steered away from the bed boundary.
  24 KB (3,753 words) - 19:33, 3 March 2016
• Migration by separate phase
  ...roat network. At that time, the slug moves into the closest coarse-grained bed. Expulsion is preferentially upward because of the hydrocarbons' buoyancy,
  8 KB (1,155 words) - 15:17, 14 February 2022
• Balanced cross sections
  ...., Jr., 1990, Unique determination of normal fault shape from hanging-wall bed geometry in detached half grabens: Ecologae Geologicae Helvetiae, vol. 83,
  8 KB (1,060 words) - 15:07, 3 February 2022
• Basin-centered gas systems: elements and processes
  ...The source rocks for direct BCGSs are most commonly [[humic]]-type [[coal bed]]s and [[carbonaceous]] [[shale]], such as occur in [[Cretaceous]] rocks in ...water- and gas-bearing zones; however, vertical transitional zones across bed boundaries do not occur, and there is an abrupt, distinct boundary between
  20 KB (2,949 words) - 18:24, 6 April 2016
• FWhitehurst sandbox
  * ash bed Wikibooks:Historical_Geology/Volcanic_ash
  22 KB (3,024 words) - 21:42, 19 December 2014
• Mudstone nomenclature
  ...aterial is delivered to a basin by a variety of transport processes (e.g., bed load, suspension) and is subsequently modified by postdepositional processe ...172 p.</ref><ref>Plint, A. G., J. H. S. Macquaker, and B. L. Varban, 2012, Bed-load transport of mud across a wide, storm-influenced ramp: Cenomanian-Turo
  58 KB (8,391 words) - 19:46, 20 February 2024
• Mudlogging: drill cuttings analysis
  ...nce of a specific lithology reflects the highest possible position of that bed. However, because the borehole may tend to cave or slough during drilling,
  10 KB (1,482 words) - 15:25, 24 January 2022
• East Breaks hydrocarbon migration model
  ...strating three possible hydrocarbon [[migration pathway]]s and related sea-bed features. They concluded that the [[primary migration]] pathway involves mi
  10 KB (1,376 words) - 16:00, 23 March 2022
• Sandstone
  ...sutured grain. Chemical compaction decrease the porosity and increase the bed thinning. Deep burial cause decrease the sand porosity dramatically.
  10 KB (1,508 words) - 15:44, 22 March 2019
• Growth strata
  ...re 5, left]] shows a narrowing upward fold limb, or growth triangle, where bed dips within the fold limb generally do not shallow upward, consistent with
  13 KB (1,930 words) - 22:28, 20 January 2016
• Quick-look lithology from logs
  ...ot significant, it will shift if formation fluid salinity changes from one bed to another, making the log hard to interpret. ...liper reading that is about [[length::0.5 in.]] smaller than the bit size. Bed boundaries are often accurately delimited ([[:file:quick-look-lithology-fro
  25 KB (3,637 words) - 19:39, 18 January 2022
• Depth and thickness conversion
  In this equation, δ′ indicates the apparent [[dip]] of the bed in the direction of the horizontal displacement ([[:file:conversion-of-well
  17 KB (2,363 words) - 16:49, 20 January 2022
• Preprocessing of logging data
  ...ue resistivity from a dual induction log. It should be noted that shoulder bed effect corrections are difficult and require complex algorithms.<ref name=p
  13 KB (2,094 words) - 17:42, 18 January 2022
• Delta plain, upper
  ...t commonly the distorted bedding simply caps the sand unit, but the entire bed can be rendered into a fluid state and massive contortions can be present ( ...e]], [[coal]], and iron-rich seams which form within these essentially red bed deposits. The sand body itself normally displays a graded base; however, in
  33 KB (4,905 words) - 16:40, 6 April 2016

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