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There is a page named "Permeability" on this wiki. See also the other search results found.

Page title matches

  • Permeability
    | chapter = Permeability ...fluid, commonly water. If a single fluid moves through rock, its relative permeability is 1.0. Two or more fluids generally inhigit flow through rock compared wit
    19 KB (2,716 words) - 19:02, 20 January 2022
  • What is permeability?
    ...[Relative permeability and pore type]]). Understanding the methodology for permeability measurements is important for understanding how to assess reservoir rock qu ==Steady-state permeability equation==
    5 KB (694 words) - 20:41, 4 April 2022
  • Relative permeability
    ==Absolute, effective, and relative permeability== ...0 or as a percent. Pore type and formation [[wettability]] affect relative permeability.
    9 KB (1,351 words) - 13:31, 5 April 2022
  • Predicting sandstone permeability from texture
    #REDIRECT [[Sandstone permeability prediction from texture]]
    60 bytes (6 words) - 20:19, 7 August 2014
  • Estimating sandstone permeability from cuttings
    #REDIRECT [[Sandstone permeability estimation from cuttings]]
    61 bytes (6 words) - 20:28, 19 December 2014
  • Sandstone permeability prediction from texture
    .../browse/authigenic authigenic] clays might be present, can help us predict permeability. ...e, the more difficult for fluid to flow through the pore and the lower the permeability.
    9 KB (1,118 words) - 17:03, 6 April 2022
  • Sandstone permeability estimation from cuttings
    ...ular formation can be extended into areas without data in order to predict permeability. ...(presented below), procedures could just as easily be developed to predict permeability of carbonates from cuttings.
    6 KB (882 words) - 17:19, 6 April 2022
  • Predicting sandstone porosity and permeability
    #REDIRECT [[Sandstone porosity and permeability prediction]]
    60 bytes (6 words) - 20:15, 19 May 2014
  • Relative permeability and pore type
    #REDIRECT [[Relative permeability]]
    35 bytes (3 words) - 15:33, 21 November 2014
  • Sandstone porosity and permeability prediction
    ...and permeability, this subsection concentrates on predicting porosity and permeability by considering the effects of diagenesis. * [[Predicting sandstone permeability from texture]]
    2 KB (300 words) - 20:29, 5 April 2022
  • Predicting carbonate porosity and permeability
    2 KB (251 words) - 18:32, 6 April 2022
  • Core-log transformations and porosity-permeability relationships
    #REDIRECT [[Core-to-log transformations and porosity-permeability relationships]]
    81 bytes (6 words) - 15:37, 19 December 2014
  • Core-to-log transformations and porosity-permeability relationships
    | chapter = Core-log transformations and porosity-permeability relationships file:core-log-transformations-and-porosity-permeability-relationships_fig1.png|{{figure number|1}}Plot showing unshifted core poros
    14 KB (1,893 words) - 20:15, 2 February 2016
  • Relationship between porosity and permeability on fractured basement reservoir
    ...mmon sandstone formation. Vugular rock produce a porous that shows various permeability distributions from relatively uniform until shapeless form. .... With relation between petrophysics parameter from the formation, include permeability distribution, can be achieved from log data of a well without core. But, in
    29 KB (4,601 words) - 16:09, 12 April 2016

Page text matches

  • Relative permeability and pore type
    #REDIRECT [[Relative permeability]]
    35 bytes (3 words) - 15:33, 21 November 2014
  • Predicting sandstone permeability from texture
    #REDIRECT [[Sandstone permeability prediction from texture]]
    60 bytes (6 words) - 20:19, 7 August 2014
  • Estimating sandstone permeability from cuttings
    #REDIRECT [[Sandstone permeability estimation from cuttings]]
    61 bytes (6 words) - 20:28, 19 December 2014
  • Predicting sandstone porosity and permeability
    #REDIRECT [[Sandstone porosity and permeability prediction]]
    60 bytes (6 words) - 20:15, 19 May 2014
  • Core-log transformations and porosity-permeability relationships
    #REDIRECT [[Core-to-log transformations and porosity-permeability relationships]]
    81 bytes (6 words) - 15:37, 19 December 2014
  • Sandstone porosity and permeability prediction
    ...and permeability, this subsection concentrates on predicting porosity and permeability by considering the effects of diagenesis. * [[Predicting sandstone permeability from texture]]
    2 KB (300 words) - 20:29, 5 April 2022
  • Pore-fluid interaction
    ...reservoir is impossible at present, [[capillary pressure]] and relative [[permeability]] analysis of rocks yields the most insight into the behavior of fluids in * [[What is permeability?]]
    2 KB (229 words) - 16:31, 4 April 2022
  • Formation-scale migration pathways
    ...fficult to assess because of the uncertainty of the characteristics of low-permeability rocks. The knowledge base is currently undergoing rapid change. The effect of bedding geometry on permeability direction and magnitude is significant. The table below shows how bedding o
    3 KB (478 words) - 15:19, 14 February 2022
  • Sandstone permeability estimation from cuttings
    ...ular formation can be extended into areas without data in order to predict permeability. ...(presented below), procedures could just as easily be developed to predict permeability of carbonates from cuttings.
    6 KB (882 words) - 17:19, 6 April 2022
  • What is permeability?
    ...[Relative permeability and pore type]]). Understanding the methodology for permeability measurements is important for understanding how to assess reservoir rock qu ==Steady-state permeability equation==
    5 KB (694 words) - 20:41, 4 April 2022
  • Relative permeability
    ==Absolute, effective, and relative permeability== ...0 or as a percent. Pore type and formation [[wettability]] affect relative permeability.
    9 KB (1,351 words) - 13:31, 5 April 2022
  • Sandstone permeability prediction from texture
    .../browse/authigenic authigenic] clays might be present, can help us predict permeability. ...e, the more difficult for fluid to flow through the pore and the lower the permeability.
    9 KB (1,118 words) - 17:03, 6 April 2022
  • Diagenesis
    ...t can have important effects in decreasing or enhancing [[porosity]] and [[permeability]].
    691 bytes (74 words) - 16:13, 22 October 2014
  • Sandstone diagenesis: composition and texture
    ...r 37, p. 289–316.</ref> suggest that slow fluid fluxes, resulting from low permeability, promote cementation; rapid fluxes promote leaching. In rapid fluxes, solut * [[Sandstone porosity and permeability prediction]]
    5 KB (729 words) - 20:48, 5 April 2022
  • Reservoir simulations and field unitization
    ...reservoir simulations. Neither the seal behavior, [[transmissibility]], [[permeability]], nor areas of sand/sand juxtaposition are constant over the entire fault ...ch10r43>Knutson, C., A., Erga, R., 1991, Effect of horizontal and vertical permeability restrictions in the Beryl reservoir: Journal of Petroleum Technology, vol.
    3 KB (479 words) - 15:21, 30 March 2022
  • Bioturbation
    ...of sediment by living organisms. It may enhance or decrease porosity and permeability. For instance, burrows filled with sand grains in a mud or clay unit could
    907 bytes (132 words) - 21:42, 18 September 2014
  • Waterflooding
    waterflooding_fig2.png|{{figure number|2}}[[Permeability]] variation example problem.<ref name=pt10r8 /> ...r|3}}Vertical sweep efficiency (coverage) as a function of WOR, ''M'', and permeability variation (''V''<sub>DP</sub>), where WOR = 5.<ref name=pt10r11 />
    10 KB (1,468 words) - 18:23, 21 January 2022
  • Reservoir system quality prediction
    ...voir system performance.The interrelationship of reservoir [[porosity]], [[permeability]], thickness, and lateral distribution determines reservoir system quality. * [[Predicting sandstone porosity and permeability]]
    3 KB (425 words) - 17:11, 5 April 2022
  • Migration rate calculation
    ...kipedia:Kozeny–Carman equation |Kozeny–Carman correction]] estimates the [[permeability]] of rocks with high percentages of clays. # Gather data, including [[permeability]] of carrier beds, [[viscosity]] of oil, fluid density, and [http://www.glo
    4 KB (618 words) - 19:40, 14 February 2022
  • Postaccumulation cementation
    ...90-91/data/pg/0075/0007/0000/1145.htm Empirical prediction of porosity and permeability in sandstones]: AAPG Bulletin, vol. 75, p. 1145–1160.</ref> # Reduced porosity may result in lower [[permeability]] so that production rates are subeconomic, even where economic quantities
    3 KB (430 words) - 15:35, 1 February 2022
  • Displacement pressure estimation from pore size
    throats and permeability: a petrographic/physical analysis of some carbonate grainstones and packsto ...letns/1992-93/data/pg/0076/0002/0000/0191.htm Relationship of porosity and permeability to various parameters derived from mercury injection-capillary pressure cur
    5 KB (766 words) - 22:55, 2 February 2016
  • Midale porosity, pore geometries, and petrophysics
    ....png|300px|thumb|{{figure number|1}}Crossplot of routine core porosity and permeability from the Midale in an example well at Weyburn field. Copyright: Coalson et ...data points 3, 4, 6, and 8) are characterized by lower porosity but higher permeability.
    5 KB (659 words) - 16:54, 12 April 2022
  • Micropermeable seal leakage
    ...he capillary displacement pressure of matrix [[porosity]]. The effective [[permeability]] to petroleum is no longer zero, but it may be small. Finally, where [[fra ...m column decreases with time since charging. [[Permeability]] and relative permeability of fine-grained rocks are difficult to analyze; however, accumulations appa
    5 KB (742 words) - 17:11, 1 February 2022
  • Core-to-log transformations and porosity-permeability relationships
    | chapter = Core-log transformations and porosity-permeability relationships file:core-log-transformations-and-porosity-permeability-relationships_fig1.png|{{figure number|1}}Plot showing unshifted core poros
    14 KB (1,893 words) - 20:15, 2 February 2016
  • Coal bed methane (UDip)
    ==The porosity and permeability of coal== ===Permeability===
    10 KB (1,576 words) - 14:42, 2 April 2019
  • Measuring displacement pressure using mercury injection
    ...=ch10r42>Katz, A. J., and A. H. Thompson, 1986, Quantitative prediction of permeability in porous rock: Physical Review Bulletin, vol. 34, p. 8179–8181., 10., 11 ==Cores, cuttings, and low-permeability rocks==
    5 KB (749 words) - 19:46, 31 March 2022
  • Tight gas reservoirs: evaluation
    ...s reservoirs would not be economical (see [[Stimulation]]). Thus, most low permeability gas reservoirs are considered “unconventional.” ...large part on advancements made in the proper geological evaluation of low permeability reservoirs.
    11 KB (1,444 words) - 21:26, 4 January 2024
  • Carbonate porosity formation and preservation
    ...ir quality of a carbonate. A rock that begins with good [[porosity]] and [[permeability]], either from depositional or early diagenetic processes, has a better cha ...and dolomitized [[mudstone]], carbonate rocks generally lose porosity and permeability as a result of diagenesis.
    5 KB (708 words) - 17:27, 5 December 2023
  • Rock quality
    ...lletns/1992-93/data/pg/0076/0002/0000/0191.htm Relationship of porosity to permeability to various parameters derived from mercury injection–capillary pressure c ...1 is higher quality because it has three times more porosity and the same permeability as flow unit 2. However, in terms of fluid flow efficiency and storage, as
    10 KB (1,534 words) - 16:53, 4 April 2022
  • Morrow lithofacies and pore types: Sorrento field
    ==Reservoir porosity and permeability== Morrow sandstones in Sorrento field have a wide range in porosity and [[permeability]]. Maximum observed porosity (Φ) is 20-22%, but more typical values are 10
    6 KB (769 words) - 17:23, 11 April 2022
  • Strain analysis of top seals
    ...ly 0.05 md, is more than 100 billion bbl/m.y.<ref name=ch10r71 /> Fracture permeability can be as high as tens of darcys<ref name=ch10r80>Stearns, D., W., Friedman
    3 KB (403 words) - 15:21, 30 March 2022
  • Factors that oppose hydrocarbon migration
    ==Permeability== ...]] of each phase below what it would be if it were the only phase present. Permeability measurements are dominantly taken in sands for reservoir engineering purpos
    8 KB (1,133 words) - 15:16, 14 February 2022
  • Fracture traps
    '''Fracture Reservoir'''—Reservoir in which most of the [[permeability]] and some of the [[porosity]] is provided by open fractures. ...ge from open, permeable fractures to cement-filled or narrow-aperture, low-permeability fractures.
    3 KB (461 words) - 16:04, 13 April 2022
  • Diagenetic trap regime
    ...ed leaching of nonreservoir-quality rock to create enhanced porosity and [[permeability]]. Common beneath [[unconformity]] surfaces. ...seals: Trap boundaries created by plugging original reservoir porosity and permeability by diagenetic cements or minerals. || colspan = 2 | Secondary [[anhydrite]]
    5 KB (645 words) - 16:14, 13 April 2022
  • Fracture trap regime
    ...ge from open, permeable fractures to cement-filled or narrow-aperture, low-permeability fractures. || rowspan = 4 | ''Extension fracture trap''; Dominant reservoir ...meability fracture swarms to areas of lower fracture frequency or fracture permeability often provides local lateral trap boundaries within the regional system. Th
    7 KB (895 words) - 16:04, 13 April 2022
  • Natural gas occurrence
    ...s: Conventional natural-gas accumulations are those in reservoirs with a [[permeability]] high enough to allow gas to flow at rates that make its production profit ...ited States are gas in [[coal]] beds (the [[coalbed methane]]), gas in low-permeability sandstones ([[Tight gas reservoirs: evaluation|tight sands]]), [[basin-cent
    4 KB (556 words) - 22:10, 7 January 2015
  • Permeability
    | chapter = Permeability ...fluid, commonly water. If a single fluid moves through rock, its relative permeability is 1.0. Two or more fluids generally inhigit flow through rock compared wit
    19 KB (2,716 words) - 19:02, 20 January 2022
  • Sandstone
    ==Porosity and Permeability== ...the quality of porosity and permeability. Diagenesis affects porosity and permeability through compaction and cementation. Compaction makes the arrangement of gra
    10 KB (1,508 words) - 15:44, 22 March 2019
  • Migration pathway
    ...e contact with the overlying seal and the continuity of both the carrier [[permeability]] network and the overlying seal. ...ormation about stratigraphic variability, distribution of fractures, and [[permeability]] of faults than is generally available to geologists.
    6 KB (889 words) - 16:50, 29 March 2022
  • Overview of routine core analysis
    ...amples can provide useful details of the lithology, petrology, porosity, [[permeability]], and hydrocarbon content of the formation.<ref name=pt05r155>Toney, J. B. ...re mandatory in heterogeneous formations in which most of the porosity and permeability are due to [[fracture]]s, solution vugs, or erratically developed pore syst
    14 KB (2,121 words) - 21:16, 19 January 2022
  • Migration rate
    ...permeability and elevation head. Rates from compaction depend primarily on permeability since pressure can only vary between hydrostatic and geostatic pressure. ...er of hydrocarbons from the lower unit to the upper is only limited by the permeability of the pathway.
    6 KB (877 words) - 19:33, 14 February 2022
  • Reservoir system analysis
    * [[Permeability]] to hydrocarbon ...n microscopy (SEM)|scanning electron microscopy]] analysis, [[porosity]]/[[permeability]]–[[Characterizing_rock_quality#What_is_r35.3F|r<sub>35</sub>]] analysis,
    4 KB (547 words) - 18:09, 1 April 2022
  • Basin-centered gas systems
    ...essured (high or low), commonly lack a downdip water contact, and have low-permeability reservoirs. In the context of a petroleum system, there are two types of ba ! Type || Source rocks || Reservoir in-situ permeability (md) || [[Hydrocarbon migration]] distance || Reservoir pressure || Pressur
    4 KB (469 words) - 19:01, 14 March 2016
  • Vibro-sesismic to increasing the production rate of coal bed methane
    ===Porosity and permeability=== ...y of coal. Here is the steps of the analyzing vibro seismic effect on coal permeability :
    11 KB (1,551 words) - 16:49, 11 January 2016
  • Wireline formation testers
    # local [[permeability]]. ...testers_fig5.png|{{figure number|5}}Pretest pressure response to formation permeability as measured by a dual pretest tool.<ref name=pt04r18 />
    10 KB (1,446 words) - 17:42, 18 January 2022
  • Formation fluid pressure from repeat formation testers
    ...thumb|{{figure number|2}}Plot of reservoir pressure vs. depth from a low-[[permeability]] chalk reservoir.<ref name=ch05r9 /> Courtesy JPT.]] ...ability chalk reservoir. Reliable pressures are difficult to obtain in low-permeability reservoirs with DSTs. Extrapolated DST shut-in pressures from a partial bui
    6 KB (849 words) - 17:55, 17 February 2022
  • Reservoir system
    ...plines. Explorationists apply the term to mean a [[Porosity|porous]] and [[Permeability|permeable]] rock regardless of the fluid it contains. Reservoir engineers a * A '''reservoir''' is a [[Porosity|porous]] and [[Permeability|permeable]] rock saturated with oil or gas in [[buoyancy pressure]] equilib
    4 KB (579 words) - 14:34, 1 April 2022
  • Interpreting hydrocarbon shows
    ...understanding of the interrelationship of [[water saturation]], relative [[permeability]], pore throat-size distribution, and height above the [[free water level]] | Flow rate || High in high-permeability rocks || Low
    8 KB (1,130 words) - 17:09, 5 April 2022
  • Fracture threshold in the real world
    ...nal, 600 p.</ref><ref name=ch10r21>Dutta, N. C., 1987, Fluid flow in low [[permeability]] porous media, in B. Doligez, ed., [[Migration]] of Hydrocarbons in Sedime ...decompaction while thick shale sequences with no immediate access to high-permeability layers will decompact more slowly and have high pore pressures. Local varia
    6 KB (930 words) - 15:49, 30 March 2022
  • Sandstone diagenetic processes
    ...etry of a sandstone and therefore controls its ultimate [[porosity]] and [[permeability]]. Early diagenetic patterns correlate with environment of deposition and s * [[Predicting sandstone porosity and permeability]]
    7 KB (870 words) - 20:30, 5 April 2022
  • Full waveform acoustic logging
    ...l in the detection of fractures and the estimation of relative formation [[permeability]]. ...pt07r3>Burns, D. R., C. H. Cheng, D. P. Schmitt, and M. N. Toksöz, 1988, [[Permeability]] estimation from full waveform acoustic logging data: The Log Analyst, v.
    10 KB (1,530 words) - 20:47, 19 January 2022
  • Production testing
    ...ductivity, and (4) short-term flow and pressure buildup tests from which [[permeability]] and the extent of damage or stimulation can be estimated.<ref name=pt09r1 ...J., T. B. Kuo, S. A. Holditch, and D. A. McVay, 1984, Estimating formation permeability from single-point flow data: Proceedings of the 1984 SPE/DOE/GRI Unconventi
    14 KB (2,165 words) - 18:42, 20 January 2022
  • Pore throat size and connectivity
    ...e. Along with [[water saturation]] (S<sub>w</sub>), pore throats control [[permeability]] to [[hydrocarbon]]s in reservoir rocks. ...lletns/1992-93/data/pg/0076/0002/0000/0191.htm Relationship of porosity to permeability to various parameters derived from mercury injection–capillary pressure c
    4 KB (650 words) - 14:23, 4 April 2022
  • Reservoir modeling for simulation purposes
    ...s controlled by bed continuity, the presence of baffles to flow, and the [[permeability]] distribution (see [[Fluid flow fundamentals]]). Reservoir heterogeneities | [[Permeability]] zonation within genetic units || || × || • || × ||
    17 KB (2,234 words) - 21:21, 19 January 2022
  • Reservoir engineering
    Porosity (Phi) 5, permeability (k) mD, fluid saturation (S) %, capiler pressure (Pc) Psi, compressibility ===Permeability===
    14 KB (2,122 words) - 17:33, 7 March 2016
  • Reservoir quality
    ...e size of the reservoir, whereas the deliverability is a function of the [[permeability]]. Effective porosity is the volume percentage of interconnected pores in a ...a measure of the rock's ability to transmit fluid (see [[Permeability]]). Permeability, measured in darcies, is a function of the size, shape, and distribution of
    18 KB (2,514 words) - 17:47, 21 January 2022
  • Dip-leaking fault
    ...10r43>Knutson, C. A., and R. Erga, 1991, Effect of horizontal and vertical permeability restrictions in the Beryl reservoir: Journal of Petroleum Technology, vol.
    8 KB (1,130 words) - 17:14, 28 March 2022
  • Hydrology and sandstone diagenesis
    * [[Sandstone porosity and permeability prediction]] * [[Predicting sandstone permeability from texture]]
    6 KB (787 words) - 13:43, 6 April 2022
  • Basin-centered gas systems: historical development and classification
    ...ort of Investigations 211, 221 p.</ref> also described many additional low-permeability reservoirs.
    9 KB (1,373 words) - 13:40, 10 March 2015
  • Rock-water reaction
    Near wellbore [[permeability]] reduction, that is, formation damage, can result from the interaction of ...dency) are the primary maerials that disperse, migrate, bridge, and impair permeability.
    17 KB (2,356 words) - 19:24, 19 January 2022
  • Rock-water reaction: formation damage
    Near wellbore [[permeability]] reduction, that is, formation damage, can result from the interaction of ...ency) are the primary materials that disperse, migrate, bridge, and impair permeability.
    17 KB (2,380 words) - 18:23, 21 January 2022
  • Pc curves and saturation profiles
    * [[What is permeability?]] * [[Relative permeability and pore type]]
    5 KB (752 words) - 16:53, 4 April 2022
  • Hydrocarbon accumulation: the seven critical elements
    * [[Permeability]] * Lateral [[permeability]] and [[porosity]]
    5 KB (636 words) - 21:47, 1 February 2022
  • Reservoir simulation study
    The reservoir characterization required to define [[porosity]] and [[permeability]] for each grid block in a reservoir simulation model is more stringent and ...dy-an-overview_fig2.png|thumb|300px|{{figure number|2}}(a) Pseudo-relative permeability and (b) capillary pressure curves calculated for two-layer thicknesses comp
    19 KB (2,711 words) - 17:48, 21 January 2022
  • Eolian reservoirs
    ...etroleum Technology, v. 35, no. 7, p. 1355–1365.</ref> found a contrast in permeability of four to five orders of magnitude between interdune and dune deposits in ...5–259.</ref> attributed the poor recovery in the Tensleep Sandstone to low permeability baffles and barriers along bounding surfaces within the eolian dune sets. B
    19 KB (2,690 words) - 18:42, 1 August 2016
  • Reservoir
    ...late hydrocarbons (oil or gas). Reservoir rock must have good porosity and permeability to accumulate and drain oil in economical quantities. ==Reservoir Permeability==
    14 KB (2,134 words) - 16:48, 26 March 2019
  • Basin-centered gas systems: gas resources
    ..., and T. M. Finn, 1999, An assessment of in-place gas resources in the low-permeability basin-centered gas accumulation of the Big Horn basin, Wyoming and Montana:
    9 KB (1,242 words) - 15:47, 11 March 2015
  • Lithofacies analysis
    ...from logs|well logs]] and outcrops. Annotate logs with [[porosity]] and [[permeability]] data (if available) from potential reservoir and seal intervals.
    2 KB (317 words) - 18:52, 4 February 2022
  • Fluid flow fundamentals
    ...e original Darcy's law is broken down into two independent factors: rock [[permeability]], ''k'', and fluid [[viscosity]], μ For a linear flow system, this gives The permeability is a property of the rock that reflects the “ease” with which the fluid
    20 KB (3,155 words) - 21:20, 19 January 2022
  • Pressure prediction: analysis of cuttings
    ...because the pore pressure cannot readily bleed out of the pore system when permeability is low.
    5 KB (818 words) - 17:56, 17 February 2022
  • Braided fluvial reservoirs
    ...detail, they can be internally complex with intervals of upward-decreasing permeability profiles, but the lack of organized stratification or laterally continuous ...95–121.</ref> Where floodplain shales cover a large area, they can act as permeability barriers bounding hydraulic units. Widespread lacustrine shale beds act as
    13 KB (1,859 words) - 21:29, 12 March 2019
  • Relationship between porosity and permeability on fractured basement reservoir
    ...mmon sandstone formation. Vugular rock produce a porous that shows various permeability distributions from relatively uniform until shapeless form. .... With relation between petrophysics parameter from the formation, include permeability distribution, can be achieved from log data of a well without core. But, in
    29 KB (4,601 words) - 16:09, 12 April 2016
  • Hydrocarbon expulsion, migration, and accumulation
    * [[What is permeability?]] * [[Relative permeability and pore type]]
    6 KB (828 words) - 16:32, 4 April 2022
  • Fault seal analysis for reservoir development
    ...section. Fault segment that becomes insulating if it has high porosity and permeability values will channel hydrocarbon fluid to the surface. So that the fault is ...ignment, where the sandstone reservoir is aligned with rocks that have low permeability (clay / shale) with high pressure ([[:file:GumelarFigure1.jpg|Figure 1]]).
    14 KB (2,146 words) - 19:35, 13 September 2022
  • Capillary pressure (Pc): buoyancy, height, and pore throat radius
    * [[What is permeability?]] * [[Relative permeability and pore type]]
    6 KB (850 words) - 17:22, 4 April 2022
  • Production problems
    ...ore (that is, an altered [[permeability]] that is lower than the reservoir permeability). To overcome these effects, the well must be deepened to expose all of the ===Decrease in relative permeability===
    16 KB (2,540 words) - 18:41, 20 January 2022
  • Statistics overview
    ...avoided. Table 1 lists formulas that are commonly used to derive effective permeability. |+ {{table number|1}}Commonly used formulas to derive effective permeability
    16 KB (2,483 words) - 19:28, 19 January 2022
  • Hydrocarbon migration
    * The properties of [[reservoir]]s and carrier beds (dip, [[relative permeability]], etc.) control the rate of migration and thus the specific direction of t ...[[Wikipedia:Pressure|pressure]], [[Wikipedia:Temperature|temperature]], [[permeability]], [[Capillary pressure|capillarity]], [http://hyperphysics.phy-astr.gsu.ed
    6 KB (865 words) - 14:33, 6 April 2016
  • Stimulation
    * Formation [[permeability]] is inadequate to allow the well to produce at rates high enough for the t * The well has been completed in a formation having adequate permeability, but the formation near the wellbore has been damaged by the drilling or co
    24 KB (3,633 words) - 13:55, 24 January 2022
  • Oilfield water analysis
    * [[Relative permeability]] * [[Permeability]]
    7 KB (1,011 words) - 16:57, 20 January 2022
  • Enhanced oil recovery
    ...e “[[Waterflooding]]”). ''M'' is usually stated in terms of the [[Relative permeability]] of a fluid phase (''k''<sub>r</sub>) divided by the phase's viscosity ('' ...''M''. For example, a miscible gas flood decreases ''M'' by increasing the permeability of oil relative to the injected gas through the elimination of interfacial
    12 KB (1,794 words) - 21:19, 19 January 2022
  • Reservoir fluids
    ...k. The basic concepts of wettability, [[capillary pressure]], and relative permeability are important. This is knowledge required to understand how reservoirs beha ==Relative permeability==
    22 KB (3,508 words) - 20:34, 3 March 2016
  • SEM, XRD, CL, and XF methods
    ...or information on how grain and pore morphology affect permeability, see [[Permeability]].) * [[Relative permeability]]
    11 KB (1,477 words) - 15:25, 24 January 2022
  • Influence of depositional environment on sandstone diagenesis
    * [[Sandstone porosity and permeability prediction]] * [[Predicting sandstone permeability from texture]]
    8 KB (1,129 words) - 14:11, 6 April 2022
  • Petrophysical analysis of lithofacies
    ...ysical character (flow units) using log data and, if available, porosity-[[permeability]] data. Categorize each flow unit by port type as mega-, macro-, meso-, or Posting core [[porosity]], permeability, and pore throat radius ([[Characterizing_rock_quality#What_is_r35.3F|r<sub
    6 KB (763 words) - 18:53, 4 February 2022
  • Production histories
    ...tions. Are we analyzing a gas or oil reservoir? Does it have high or low [[permeability]]? Is the reservoir naturally [[fracture]]d? Is it necessary to consider co ...e slowly through the reservoir. Radial flow is expected in wells with high permeability or in old wells where the drainage area is large.
    11 KB (1,656 words) - 18:41, 20 January 2022
  • Coal bed methane (UB)
    ...he increase [[fracture]] also making fracture or cleats in coal, so making permeability in coal ([[:File:Figure 2 trap mechanism.JPG|Figure 2]]). ...increase production usually stimulated with hydrolic fracture to increase permeability of coal ([[:File:Figure 3 cbm production.JPG|Figure 3]]).
    5 KB (839 words) - 17:19, 28 March 2019
  • Well log analysis for reservoir characterization
    # permeability (k) ...r characterization, they are petrophysics (shale volume, water saturation, permeability, etc.) which are more geology-like and rock physics (elasticity, wave veloc
    25 KB (3,679 words) - 21:17, 13 March 2019
  • Condensate banking effect
    ...ificant effects on well productivity, mainly due to the decreased relative permeability to gas.<ref name=Shi_2009>Shi, C. (2009). Flow Behavior of Gas-Condensate W ...ctivity is dependent on the petrophysical properties of the rock. In lower permeability and lower porosity reservoirs, condensate banking effect is more significan
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  • Geological heterogeneities
    Heterogeneities at the wellbore scale affect matrix [[permeability]], distribution of [[Interpreting hydrocarbon shows#Residual shows|residual ...ig2.png|thumb|300px|{{figure number|2}}Typical vertical stratification and permeability profiles of (a) fining- or thinning-upward and (b) coarsening- or thickenin
    17 KB (2,232 words) - 21:22, 19 January 2022
  • Reservoir drive mechanisms
    ...s and gas production increases rapidly because of the increased relative [[permeability]] to gas. ...gh a reservoir under the influence of gravity. This requires high vertical permeability or steeply dipping beds and thus is common in fractured reservoirs. Efficie
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  • Abnormal hydrostatic pressure
    ...a pore system must be isolated from the surrounding system by [[Wikipedia:Permeability (earth sciences)|impermeable]] barriers for abnormal pressure to exist.
    3 KB (426 words) - 14:51, 16 February 2022
  • Limitations of quantitative fault seal analysis
    ...genesis|diagenetic effects]], localized fracturing, sharp changes in the [[permeability]] or [[displacement pressure]] of sands, reactivation of earlier normal fau
    3 KB (398 words) - 17:35, 29 March 2022
  • Siliciclastic shorelines and barrier island reservoirs
    | Shoreface sandstones show upward-increasing permeability profiles || Favorable to high vertical sweep efficiencies || | Poor vertical permeability at upper to lower shoreface boundaries (e.g., mica plating) || || Lower sho
    18 KB (2,607 words) - 15:33, 15 January 2024
  • Mudlogging: gas extraction and monitoring
    ...no effect on mud and cuttings blender test results. However, with moderate permeability, the mudflow rate and the resulting lag time will have some effect on the a
    9 KB (1,327 words) - 15:28, 24 January 2022
  • Fractured reservoir evaluation
    ...servoir [[permeability]], (2) increased [[porosity]], and/or (3) increased permeability [http://wiki.seg.org/wiki/Dictionary:Anisotropy anisotropy]. Four basic typ {{quotation|''Type 1''—Provide the essential porosity and permeability to the reservoir
    26 KB (3,674 words) - 21:21, 19 January 2022
  • Weyburn seal capacity
    ...lletns/1992-93/data/pg/0076/0002/0000/0191.htm Relationship of porosity to permeability to various parameters derived from mercury injection–capillary pressure c ...y available core analyses. The method relates a core sample's porosity and permeability to the pore throat size indicated at a given nonwetting-phase saturation. O
    10 KB (1,484 words) - 20:55, 4 December 2023
  • Pore system fundamentals
    ...storage capacity is controlled by the size and number of pores. A rock's [[permeability]] (flow capacity) is controlled by the size, shape, and number of the pore
    3 KB (388 words) - 13:52, 4 April 2022
  • Pressure transient testing
    * [[Permeability]] to the produced phase (oil, gas, or water), which is an average value wit ...est data, with slopes of straight lines on these plots used to determine [[permeability]]. [[:file:pressure-transient-testing_fig3.png|Figure 3]] is a typical semi
    15 KB (2,314 words) - 17:45, 21 January 2022
  • Predicting sandstone reservoir porosity
    * [[Predicting sandstone porosity and permeability]] * [[Predicting sandstone permeability from texture]]
    10 KB (1,384 words) - 15:00, 6 April 2022
  • Petrophysical analysis of Sorrento field wells
    ...e top and bottom of the Morrow (flow units A and 5) are microporous, low-[[permeability]] sandstones that are wet but too tight to produce. Between these are [[len ...ithologic changes that affect log-calculation parameters without affecting permeability-porosity relationships. Examples include vuggy or [[fracture]] porosity and
    7 KB (956 words) - 17:24, 11 April 2022
  • Flow units for reservoir characterization
    ...le in a particular reservoir. (See [[Core-log transformations and porosity-permeability relationships]].) ...ly and laterally, or they may be completely isolated from one another by [[permeability]] barriers.
    16 KB (2,282 words) - 20:46, 19 January 2022
  • Trap leakage
    ...if leakage rate is low. Rate of leakage is controlled by seal effective [[permeability]].
    3 KB (445 words) - 16:58, 1 February 2022
  • Intact membrane seal leakage
    ...he matrix [[porosity]] of the seal. Under these conditions, the relative [[permeability]] of the seal to petroleum is zero. The [[accumulation]] remains preserved
    3 KB (475 words) - 17:08, 1 February 2022
  • Basin-centered gas
    ...ormally pressured, commonly lack a [[downdip]] water contact, and have low-permeability reservoirs. The accumulations range from single, isolated reservoirs a few
    3 KB (453 words) - 13:28, 10 March 2015
  • Basin-centered gas systems: elements and processes
    ...uidebook, P. 469-490.</ref> concluded that all, or most, of the gas in low-permeability reservoirs in the Greater Green River basin was sourced from humic, type II ...s/1988-89/data/pg/0073/0005/0600/0613.htm Review of characteristics of low-permeability gas reservoirs in western United States]: AAPG Bulletin, v. 73, p. 613-629.
    20 KB (2,949 words) - 18:24, 6 April 2016
  • Geothermal energy
    ...C; 104&deg; to more than 716&deg;F) are found in [[Porosity|porous]] and [[Permeability|permeable]] rocks at shallow depths (less than 3000 m; about 10,000 ft). Th ...opment of geothermal resources: shallow high temperatures, rocks with good permeability, and sufficient volumes of water.
    13 KB (1,918 words) - 18:12, 2 April 2019
  • Subsurface diagenesis and its relation with diagenetic trap on carbonate rocks reservoir
    ...issolution makes the lower burial-carbonate reservoir to have porosity and permeability which can produce hydrocarbon, though standard “dogma” said that burial ...lity (Nelson, 1981). Post-stylolite [[diagenesis]] may result porosity and permeability in light rocks (Dawson, 1988). Seismic and wireline log data can’t distin
    16 KB (2,395 words) - 21:18, 9 January 2024
  • Cross-leaking fault
    ...nd the relative permeability of both reservoirs and fault zones. Apparent “permeability barriers” within a fault compartment may also be artificial creations of
    8 KB (1,155 words) - 21:31, 24 March 2022
  • Pay determination
    | 2. Determine reservoir properties || Core analysis (porosity, [[permeability]], fluid saturation), wireline log analysis (porosity, fluid saturation) ...nd nonreservoir rocks and characterize pore space geometry || [[Porosity]]/permeability crossplots, thin section petrography, pore cast electron microscopy, mercur
    13 KB (1,799 words) - 19:01, 20 January 2022
  • Wettability
    | [[Relative permeability]] method || Location and relative magnitudes of ''k''<sub>ro</sub> and ''k' * [[Relative permeability and pore type]]
    12 KB (1,706 words) - 15:11, 24 January 2022
  • Wiki write off
    * [[Relationship between porosity and permeability on fractured basement reservoir]]
    3 KB (399 words) - 12:51, 28 September 2015
  • Fluid contacts
    ...[[Determining water saturation|hydrocarbon saturation]] and hydrocarbon [[permeability]] due to [[Capillary pressure|capillary effects]] on different pore systems ...ion zones will also have different thicknesses due to different [[relative permeability]] characteristics not shown here. The vertical line is the well position co
    19 KB (2,690 words) - 21:20, 19 January 2022
  • Fracking
    ...ures (proppant) into the wellbore. Fracking is used in formations with low permeability such as tight gas, shale gas, tight oil and gas [[coal]] seam.
    3 KB (484 words) - 21:18, 27 March 2019
  • Carbonate diagenesis
    ..., [[Interpreting Sw distribution in a reservoir| water saturation]], and [[permeability]]. ...servoir rocks (see [[Reservoir quality]]). The effect of this process on [[permeability]] depends upon the geometry and location of the resulting voids relative to
    23 KB (3,026 words) - 20:48, 19 January 2022
  • Carbonate facies
    * [[Predicting carbonate porosity and permeability]]
    3 KB (433 words) - 18:32, 6 April 2022
  • Sandstone sedimentology and stratigraphy
    ...s. These changes result in variations in porosity, fluid distribution, and permeability. However the main diagenetic process in sandstone such as compaction, cemen ...elationship to the porosity and permeability of the rock. The porosity and permeability are directly influenced by the way the sand grains are packed together.
    27 KB (3,802 words) - 19:32, 9 January 2024
  • Structural lead and prospect delineation
    * Deliverability (structurally induced enhancement or degradation of [[permeability]])
    4 KB (511 words) - 18:50, 3 February 2022
  • Perforation design
    ...is due to the fact that vertical permeability is lower than the horizontal permeability. Building a fracture network can increase productivity tremendously. Thus,
    12 KB (1,786 words) - 21:02, 21 April 2022
  • Fault seal breakdown during production
    ...ssure depletion is sufficiently rapid, or the fault has sufficiently low [[permeability]], to cause a large pressure differential across the fault. The change from
    4 KB (530 words) - 15:21, 30 March 2022
  • Stratigraphically complex fields
    * Presence of numerous vertical [[permeability]] barriers at a variety of scales * Complex [[porosity]]-permeability and [[capillary pressure]] relationships (a broad scatter in the data indic
    8 KB (983 words) - 20:49, 19 January 2022
  • Thin section analysis
    ...because petrographic observations can be compared directly to porosity and permeability measurements. ...rocks, many sandstone reservoirs retain relative porosity and, especially, permeability patterns that can be explained by grain size and sorting variations control
    24 KB (3,264 words) - 15:09, 24 January 2022
  • Pressure detection
    * ''Caving''—high pore pressure in low [[permeability]] rocks causes them to stress relieve or “cave” into the borehole ...ility. Sands and silts compact less than clays and shales and can maintain permeability to greater depths.
    16 KB (2,450 words) - 21:42, 20 January 2022
  • Subsurface maps
    ...ter=gas-water+contact gas-water contact]), or (2) having porosity and/or [[permeability]] values below a “cutoff” limit for productivity. Not all net pay is ne ===Permeability===
    22 KB (3,076 words) - 13:56, 24 January 2022
  • Petrofabrics
    * Deformation effects on [[porosity]] and [[permeability]]
    4 KB (447 words) - 15:17, 3 February 2022
  • Porosity
    ...g. (After Berg;<ref name=pt05r25>Berg, R. R., 1970, Method for determining permeability from reservoir rock properties: Transactions Gulf Coast Association of Geol ...Systematic packing of spheres with particular reference to porosity and [[permeability]]: Journal of Geology, v. 43, p. 785–909, DOI: [http://www.jstor.org/disc
    24 KB (3,450 words) - 19:09, 20 January 2022
  • Utica Shale, Ohio, Pennsylvania, West Virginia and Kentucky
    ...l result in variable economics that could be a result of different lateral permeability.
    3 KB (542 words) - 22:36, 4 March 2022
  • Show evaluation
    ...still be viable hydrocarbon-bearing reservoirs. Conversely, poor porosity-permeability zones that have gas increases may be nonproducible. For the most effective ...en drilled to appear productive on electric logs or when later tested. Low permeability overpressured zones will not flush and will give high gas readings.
    18 KB (2,670 words) - 18:21, 21 January 2022
  • Yowlumne field
    ...cate weak compartmentalization of the reservoir, which results in separate permeability pathways along which fluids flow at different rates (Metz and Whitworth, th ...nd slumped intervals. These variations result in the creation of reservoir permeability pathways that parallel bedding.
    13 KB (1,896 words) - 19:02, 11 March 2019
  • Hydrodynamic traps: mapping
    # Look for [[permeability]] barriers or hydrocarbon-free water levels using pressure-depth plots.
    4 KB (601 words) - 22:27, 17 February 2022
  • Diagenetically complex reservoir evaluation
    ...cted fluids. Extreme [[permeability]] stratification or the development of permeability barriers by diagenetic alteration may lead to the need to drill additional ...netic inhomogeneities are zones of reduced or enhanced [[porosity]] and/or permeability that are generated by one or a combination of the processes of cementation,
    31 KB (4,171 words) - 18:22, 21 January 2022
  • Core alteration and preservation
    ...nd the filtrate, mud cake permeability, pressure differential and relative permeability of the formation to the mud filtrate, and core diameter.<ref name=Basan_eta ..., P., J. R. Hook, and K. Hughes, 1988, Measuring porosity, saturation, and permeability from cores: The Technical Review, v. 36, n. 4, p. 22-36.</ref>. A variety o
    20 KB (2,971 words) - 15:46, 19 January 2022
  • Preprocessing of logging data
    ...y]] relationships. Linear resampling of permeability destroys porosity and permeability relationships and can make statistical inference incorrect when making core
    13 KB (2,094 words) - 17:42, 18 January 2022
  • Open hole tools
    ...A || Well-to-well correlation, estimate ''R''<sub>w</sub> , and indicate [[permeability]] || Does not work in oil-based mud and ''R''<sub>mf</sub> and ''R''<sub>w< ...s potential can be used to correlate formations between wells, to indicate permeability, and to estimate formation water resistivity. No SP occurs when oil-based m
    23 KB (3,350 words) - 17:26, 18 January 2022
  • Austin Chalk, onshore U.S. Gulf Coast
    ...drilling to connect a permeable network and facilitate drainage within low-permeability matrix (Corbett et al., 1994; Pearson, 2012). Accordingly, exploration had
    8 KB (1,200 words) - 21:22, 3 March 2022
  • Basin-centered gas systems: global distribution
    ..., and T. M. Finn, 1999, An assessment of in-place gas resources in the low-permeability basin-centered gas accumulation of the Big Horn basin, Wyoming and Montana: ...lli, and R, H. Balay, 1996, An assessment of in-place gas resources in low-permeability Upper Cretaceous and lower Tertiary sandstone reservoirs, Wind River basin,
    27 KB (3,753 words) - 14:53, 12 March 2019
  • Utilization of the industrial revolution 4.0 in oil and gas exploration
    ...g/10.1016/j.jappgeo.2018.09.011</ref> utilized ML to delineate and predict permeability of tight-sand (unconventional) reservoirs in China, their study has demonst ...ef> integrated SCAL data through machine learning to estimate the relative permeability. Logs make engineers and geoscientists’ lives easier when they contain ro
    21 KB (3,096 words) - 20:59, 21 April 2022
  • Carbonate sedimentary rocks classification
    ...est reservoir quality rock. It is usually characterized by good porosity & permeability, good sorting, and cross-bedding. It is mainly formed near strong offshore ...f it is partially cemented. It is usually characterized by good porosity & permeability, and good sorting.
    16 KB (1,986 words) - 14:09, 19 December 2023
  • Basin-centered gas systems: development
    ...295-1304.</ref> discussed these phase changes for gas accumulations in low-permeability reservoirs. ...t systems because buoyant accumulations of oil require better porosity and permeability.
    34 KB (4,772 words) - 14:44, 12 March 2019
  • Drilling problems
    ...se [[Wikipedia:Blowout (well drilling)|blowouts]] when present in highly [[permeability|permeable]] formations. If the pressure differential between the wall of th
    5 KB (732 words) - 21:18, 19 January 2022
  • Lithofacies and environmental analysis of clastic depositional systems
    ...n where rocks have experienced later physical and chemical [[diagenesis]], permeability and porosity relationships are controlled, in large part, by the original s ...reprocessing of logging data]] and [[Core-log transformations and porosity-permeability relationships]]) and (2) establishing a relationship between lithofacies as
    38 KB (5,198 words) - 22:11, 15 January 2024
  • Stratigraphic trap seals
    ...soporous material|mesoporous]] sandstone with 18% [[porosity]] and 10 md [[permeability]], then the bottom [[length::75 ft]] (20 m) of the trap will produce both o
    5 KB (632 words) - 20:26, 3 February 2022
  • Basin-centered gas systems: examples
    ...ermal maturity, and overpressuring to gas generation and occurrence in low-permeability Upper Cretaceous and lower Tertiary rocks, Greater Green River basin, Wyomi * Permeability: <0.1 md (in-situ)
    25 KB (3,445 words) - 19:01, 14 March 2016
  • Petroleum exploration
    ...lt water to migrate downward below. This migration is controlled by rock’s permeability and porosity. ...carbon explorer are its bulk rock volume, net-to-gross ratio, porosity and permeability.
    15 KB (2,331 words) - 19:12, 17 April 2019
  • Sequences during moderate-amplitude, high-frequency cycles
    * [[Predicting carbonate porosity and permeability]]
    5 KB (674 words) - 21:22, 6 April 2022
  • How faults control trap fill and migration pathways
    ...faults, even [[cross-leaking faults]] can act as barriers as long as the [[permeability]] of the carrier bed is higher than that of the fault. [[Hydrocarbon]]s can
    5 KB (785 words) - 17:04, 29 March 2022
  • Basin-centered gas systems: evaluation and exploration strategies
    ...s/1988-89/data/pg/0073/0005/0600/0613.htm Review of characteristics of low-permeability gas reservoirs in western United States]: AAPG Bulletin, v. 73, p. 613-629. ...vertical core in Mesaverde reservoirs, ''in'' Rocky Mountain regional/low permeability reservoirs symposium: Society of Petroleum Engineers, p. 705-716.</ref> In
    34 KB (5,070 words) - 15:11, 23 August 2016
  • Carbonate diagenetic stages
    * [[Predicting carbonate porosity and permeability]]
    6 KB (727 words) - 19:06, 6 April 2022
  • Well types
    ...ery low [http://www.britannica.com/EBchecked/topic/369508/matrix matrix] [[Permeability|permeabilities]].<ref name=Majorandholtz_1997>Major, R. P., and M. H. Holtz ...s by maximizing the contact length with the reservoir. This means that low-permeability rocks such as chalk can produce at economic rates that would be marginal to
    24 KB (3,753 words) - 19:33, 3 March 2016
  • Risk: expected value and chance of success
    ...that '''[[reservoir rock]] '''is present, of sufficient [[porosity]] and [[permeability]] to be productive, and in some minimal thickness and extent sufficient to ...least a minimal reservoir—thickness, extent, [[porosity]], and effective [[permeability]]. Under this approach, encountering a wet, commercial-quality [[sandstone]
    22 KB (3,173 words) - 19:27, 19 January 2022
  • Capillary pressure
    ...oposed a simple nomograph whose application improved estimation of brine [[permeability]] from capillary pressure measurements on sidewall cores and ditch cuttings * [[Relative permeability and pore type]]
    23 KB (3,315 words) - 16:59, 19 January 2022
  • Drive mechanisms and recovery
    ...ates for a particular water drive reservoir are determined by the size and permeability of its associated aquifer.
    16 KB (2,374 words) - 20:46, 19 January 2022
  • Meandering fluvial reservoirs
    ...y52/CHAPTER10/CHAPTER10.HTM Fluvial reservoir description for a giant, low-permeability gas field: Jonah field, Green River Basin, Wyoming, U.S.A.], in J. W. Robin [[file:M91FG177.JPG|thumb|300px|{{figure number|6}}Upward-decreasing permeability profile in a point bar sandstone in the Peoria field, Colorado (from Chapin
    32 KB (4,727 words) - 21:03, 15 January 2024
  • Sequences during low-amplitude, high-frequency cycles
    * [[Predicting carbonate porosity and permeability]]
    5 KB (708 words) - 21:00, 6 April 2022
  • Pressure compartment seals
    ...water. They form where pore throats are effectively closed and absolute [[permeability]] is near zero.
    5 KB (763 words) - 17:58, 17 February 2022
  • Drill stem testing
    * formation properties, including [[permeability]] (''k''), skin (''S''), and radius of investigation (''r''<sub>i</sub>) ...the test. If [[offset]] data are available, the magnitude of [[porosity]], permeability, and reservoir pressure should be identified. Knowledge of zonal mineralogy
    26 KB (4,009 words) - 15:09, 24 January 2022
  • Sequences during high-amplitude, high-frequency cycles
    * [[Predicting carbonate porosity and permeability]]
    6 KB (761 words) - 13:47, 7 April 2022
  • Bakken and Three Forks Formations, Williston Basin, North Dakota and Montana (USGS)
    ...of type-II kerogen. The primary reservoir targets are low-porosity and low-permeability members of the middle Bakken and Three Forks (upper part), with continued e | Permeability (md) || Variable, Sandstones: 0.1; Dolomite: 0.01
    11 KB (1,595 words) - 20:20, 2 June 2021
  • Oil shale
    ...involving drilling into the oil-shale unit, fracturing it to increase its permeability, igniting the shale, and recovering the oil thus generated through other we
    6 KB (893 words) - 19:01, 14 March 2016
  • Austin Chalk, Tokio, and Eutaw Formations, U.S. Onshore Gulf Coast (USGS)
    ...d petroleum stored in the rock matrix was initially ignored due to the low permeability of the chalk. Continued improvements in drilling technology and the applica
    6 KB (846 words) - 20:58, 6 April 2021
  • Seal capacity of different rock types
    ...name=ch10r94>Wells, J., D., Amafuele, J., O., 1985, Capillary pressure and permeability relationships in tight gas sands: SPE/DOE paper 13879.</ref> Melas and Frie
    5 KB (760 words) - 20:55, 31 March 2022
  • Structural play geology
    ...e zones and predict [[fracture]]d reservoir properties, such as fracture [[permeability]]. ...[porosity]], [[permeability]], and/or pore size) or dilatancy (increase in permeability by fracturing). These deformation-related changes should be either document
    18 KB (2,422 words) - 14:21, 2 February 2022
  • Deltaic reservoirs
    | Distributary channel sands commonly the highest permeability facies association in deltas || Can be the most productive intervals in a d ...typically show an upward-fining sediment profile and an upward-decreasing permeability profile. From the base upward, a distributary channel comprises the active
    34 KB (4,776 words) - 18:18, 5 January 2024
  • Midale lithofacies and distribution
    ...nce_fig9-102.png|{{figure number|4}}Crossplot of routine core porosity and permeability from Midale in an example well at Weyburn field. From Coalson et al.;<ref n
    6 KB (842 words) - 18:50, 4 December 2023
  • Pinedale field
    ...re tight with fairly low porosity (mostly <10%) and very low (micro-Darcy) permeability. The tight nature of these reservoir rocks makes it difficult for gas to mo ...ntary facies, [[diagenesis]], water saturation and its control on relative permeability to gas, and possibly [[fracture]] size, density, and distribution. Added to
    16 KB (2,521 words) - 17:13, 29 January 2016
  • Types of wells
    ...s by maximizing the contact length with the reservoir. This means that low-permeability rocks such as chalk can produce at economic rates that would be marginal to ...aldorsen, H. H., D. M. Chang, and S. H. Begg, 1987, Discontinuous vertical permeability barriers: A challenge to engineers and geologists, in J. Kleppe, E. W. Berg
    22 KB (3,567 words) - 17:20, 11 March 2019
  • Deep-water marine reservoirs
    | Laterally extensive [[mudstones]] commonly form permeability barriers to vertical flow || Encourages edge-water drive and can suppress e ..., Characterization and exploitation of the distal margin of a layered, low-permeability turbidite reservoir, Yowlumne field, San Joaquin Basin, California: Houston
    20 KB (2,850 words) - 15:33, 15 January 2024
  • Predicting reservoir drive mechanism
    * Steeply dipping beds or vertical [[permeability]] greater than horizontal
    6 KB (759 words) - 13:51, 4 April 2022
  • Core description
    ...og calibration. Core plugs provide samples for analysis of [[porosity]], [[permeability]], fluid saturation, and a host of compositional and textural studies. Reco ...reprocessing of logging data]] and [[Core-log transformations and porosity-permeability relationships]]. For information on interpreting depositional environments
    13 KB (1,786 words) - 20:50, 19 January 2022
  • Mancos Shale Play in New Mexico
    ...eformed eastern margin of the basin. Natural fractures provided the system permeability that allowed vertical wells to produce at economic rates.
    6 KB (985 words) - 20:14, 2 June 2021
  • Factors that cause migration
    ...lumn]]. It acts vertically. When the rising hydrocarbons encounter a low-[[permeability]] (high capillary entry pressure) sloping surface, they are deflected [[upd
    6 KB (918 words) - 15:16, 14 February 2022
  • Top seal ductility estimation
    ...ationship between the density and the ductility of sandstones where high [[permeability]] and diagenetic effects alter the more simple relationship observed in les
    7 KB (1,000 words) - 15:22, 30 March 2022
  • Data: sources
    ...companies perform the core analysis. Rock properties such as porosity and permeability are measured on core plugs cut from the core. These are about 2.5 or 3.8 cm ...tribution and flow. Properties such as [[capillary pressure]] and relative permeability are measured by special core analysis, and this is referred to by the acron
    43 KB (6,686 words) - 13:44, 18 March 2019
  • Predicting carbonate reservoir location and quality
    * [[Predicting carbonate porosity and permeability]]
    7 KB (894 words) - 14:15, 11 April 2022
  • Sea level cycles and climate
    * [[Predicting carbonate porosity and permeability]]
    7 KB (894 words) - 20:54, 6 April 2022
  • Influence of mechanical stratigraphy on deformation styles
    ...tors influencing variation in mechanical stratigraphy such as porosity and permeability, mineralogy, and layer thickness. The permeability is based on fracture connectivity which drives fluid flow, however, fractur
    23 KB (3,162 words) - 17:28, 5 December 2023
  • Sea level cycles and carbonate diagenesis
    * [[Predicting carbonate porosity and permeability]]
    7 KB (960 words) - 21:00, 6 April 2022
  • Well planning
    * [[Porosity]] and [[permeability]]
    6 KB (779 words) - 15:09, 24 January 2022
  • Core handling
    ...the grain orientations will negate the ability to measure [[porosity]], [[permeability]], and other reservoir properties accurately. The sediment can be disturbed
    7 KB (1,083 words) - 20:50, 19 January 2022
  • Drilling a well
    ...Acidization can be particularly effective in increasing the near-wellbore permeability of carbonate reservoirs and sandstone reservoir rock with carbonate or acid
    15 KB (2,385 words) - 15:05, 1 August 2016
  • Sea level cycles and carbonate sequences
    * [[Predicting carbonate porosity and permeability]]
    7 KB (989 words) - 20:45, 6 April 2022
  • Carbonate reservoir
    .... Carbonates can have thick transition zones in reservoirs with low matrix permeability.<ref>Masalmeh, S. K., I. Abu Shiekah, and X. D. Jing, 2005, Improved charac ...iderable variability in well-flow rates. Thief zones in fractures and high-permeability intervals can cause early water breakthrough.
    38 KB (5,571 words) - 15:31, 16 January 2024
  • Carbon dioxide (CO2) storage
    ...de the ability to inject the CO<sub>2</sub>, caused by the typically low [[permeability]] characteristics of the coal cleat system (especially with increasing dept ...ime scale for complete dissolution is critically dependent on the vertical permeability and the geometry of the top seal but is predicted to occur on a scale of hu
    37 KB (5,487 words) - 21:14, 11 March 2019
  • Bakken and Three Forks Formations, Williston Basin, North Dakota and Montana
    ...ype II kerogen. The primary reservoir targets are the low porosity and low permeability members of the middle Bakken and upper Three Forks, with continued explorat
    7 KB (1,004 words) - 22:08, 4 March 2022
  • Correlation and regression analysis
    ...f relationships among multiple physical properties. The investigation of [[permeability]]-[[porosity]] relationships is a typical example of the use of correlation
    9 KB (1,366 words) - 16:37, 19 January 2022
  • Flow units and containers
    ...sical characteristics, such as distinctive log character and/or porosity-[[permeability]] relationships, define individual flow units. Inflow performance for a flo * [[Porosity]]–permeability cross plots (r<sub>35</sub>—defined later)
    9 KB (1,231 words) - 18:42, 1 April 2022
  • Migration by separate phase
    ...ough to overcome the capillary forces of the fine pore network. Relative [[permeability]] effects also aid migration. As hydrocarbons fill a pore network, the abil
    8 KB (1,155 words) - 15:17, 14 February 2022
  • Early carbonate diagenesis
    * [[Predicting carbonate porosity and permeability]]
    10 KB (1,352 words) - 19:07, 6 April 2022
  • Super basins
    ...dstark_2020 /> They are characterized by organic rich shales or tight (low permeability) carbonates and sandstones, and they were previously only considered to wor ...f capillarity; and (4) lateral and vertical changes of facies with primary permeability barriers ([[:file:GiacomoneEtAlFigure3.jpg|Figure 3]]).<ref name=Veigaetal_
    27 KB (3,791 words) - 19:35, 11 October 2022
  • Cross-well electromagnetic tomography monitoring of fluid distribution
    | μ || Magnetic material permeability || Henries per meter (H/m) || kg.m.s<sup>-2</sup>.A<sup>-2</sup> ...ed carbonate texture of the formation, which affects both the porosity and permeability, the movement of the interface between the injected water and the oil is un
    18 KB (2,715 words) - 18:29, 8 February 2024
  • Faults: structural geology
    ...004, [http://archives.datapages.com/data/bulletns/2004/09sep/1315/1315.HTM Permeability effects of deformation band arrays in sandstone]: AAPG Bulletin, v. 88, no. ...sand-sand contact faults with damage zones can have significantly reduced permeability across them.
    63 KB (9,496 words) - 16:51, 15 January 2024
  • Monte Carlo and stochastic simulation methods
    * Continuous, such as porosity or permeability values
    11 KB (1,623 words) - 19:24, 19 January 2022
  • China Shale Gas & Liquids - Bohai Bay Basin
    ...(Zhao et al., 2018). The shale matrix has a porosity of less than 10% and permeability of less than 1×10-3 μm2. Intergranular pores in analcite, intercrystallin
    8 KB (1,251 words) - 15:51, 14 March 2022
  • Petroleum basins of Turkey
    ...ural bitumen did not penetrate into host rock due to very low porosity and permeability. The Tmax and Ro values indicate that natural bitumen were subjected to hig ...porosity is low, but the fractured nature gives the unit a relatively high permeability. Since the area is affected by Cretaceous and Miocene thrusting, fracturing
    52 KB (7,769 words) - 20:28, 18 January 2017
  • Burial destruction
    ...gasified, the presence of pyrobitumen can significantly reduce reservoir [[permeability]] due to gas or condensate.
    11 KB (1,525 words) - 18:50, 1 February 2022
  • EMD Tight Oil & Gas Committee 2020-21 Annual Report
    ...aulic fracturing in shale and “tight” oil and gas formations with very low permeability has resulted in drastic increases in oil and natural gas production since 2
    9 KB (1,311 words) - 20:32, 20 September 2022
  • Relating traps to paleogeography
    ...stones and often bracket [[pressure compartments]] due to their very low [[permeability]]. Between the condensed sections are the sand-prone early lowstand systems
    11 KB (1,482 words) - 15:47, 21 March 2022
  • Barmer basin
    .... A. Hansen, and S. D. Burley, 2011, Reservoir characterization of the low permeability siliceous Barmer Hill Formation, Barmer Basin, India: Society of Petroleum
    24 KB (3,528 words) - 22:50, 8 January 2019
  • Structural exploration: thrust belt example
    ...on allows for a direct calculation of fracture [[porosity]] and fracture [[permeability]] for the reservoir.
    14 KB (1,897 words) - 20:01, 3 February 2022
  • Appalachian Basin Marcellus gas play
    ...of the Marcellus Shale include thickness, total organic content, porosity, permeability, thermal maturity, pore pressure, depth, gas show characteristics, rock mec ...w down very quickly, indicating limited wellbore connectivity to porosity, permeability, and natural fracturing. A few early Marcellus completions in northern and
    89 KB (13,415 words) - 19:16, 16 January 2024
  • Wattenberg field
    ...ble and repeatable results and economics. The low recovery factors and low permeability reservoirs mandate advanced completion and stimulation techniques (e.g., ho *Low porosity and permeability reservoirs
    72 KB (10,249 words) - 20:06, 15 January 2024
  • Drilling fluid
    ...the drilling fluid when drilling through formations having little or no [[permeability]] to water. Although classified as “air” drilling, several types of gas
    13 KB (1,866 words) - 21:17, 19 January 2022
  • Wellbore trajectory
    * Increasing production rate in low [[permeability]] formations
    14 KB (2,167 words) - 20:46, 19 January 2022
  • Karst topography
    * Confined-flow karst aquifers usually occur beneath rocks that have low permeability and very controlled by layer above the aquifers.
    13 KB (2,016 words) - 19:56, 5 April 2019
  • Multivariate data analysis
    ...dependent quantities or attributes such as [[grain size]], [[porosity]], [[permeability]], and saturation. Although univariate statistical analysis can characteriz
    16 KB (2,349 words) - 15:46, 19 January 2022
  • Reserves estimation
    ...erms are influenced by such factors as residual oil saturation, relative [[permeability]], reservoir heterogeneity, and operational limitations that govern reservo
    16 KB (2,550 words) - 17:47, 21 January 2022
  • Contourites
    ...sediments,preserving good petrophysical characteristics, such as porosity, permeability, and [[lateral]] and vertical transmissibility of fluids, must form part of
    13 KB (1,889 words) - 19:11, 6 April 2016
  • Basin modeling: identifying and quantifying significant uncertainties
    ...ties (thermal conductivity, density, heat capacity, radiogenic heat, and [[permeability]]) that control thermal and pressure evolution in the model. ...nt in a rock property equation (e.g., compaction, thermal conductivity, or permeability). Probability distribution functions can be used to describe most likely va
    38 KB (5,890 words) - 15:16, 23 August 2016
  • Three-dimensional modeling of clinoforms in shallow-marine reservoirs
    ...nd can also act as barriers or baffles to flow where they are lined by low-permeability lithologies, such as cements or [[mudstones]]. Current reservoir modeling t ...detailed facies architecture within parasequences and can also act as low-permeability barriers or baffles to flow.<ref name=WB96>Wehr, F. L., and L. D. Brasher,
    113 KB (16,689 words) - 22:11, 15 January 2024
  • Shale tectonics
    ...(this mud is presumed overpressured and held at depth by an overlying low permeability material) and (2) a triggering of overburden breach by some process that pa
    17 KB (2,466 words) - 16:16, 10 January 2024
  • Shale-oil resource systems
    ...hereby limiting producibility in the absence of open fractures or enhanced permeability. At higher maturity, of course, this oil is cracked to gas, explaining the ...ractured Monterey, Bazhenov, and Bakken shales; organic-rich but ultra-low-permeability mudstone systems, such as the Barnett and Tuscaloosa shales; and hybrid sys
    97 KB (14,873 words) - 19:53, 11 January 2024
  • Tethys region
    ...being successfully applied to increase productivity and recovery from low permeability carbonate reservoirs (e.g. microporous rocks) that are widespread across th
    23 KB (3,325 words) - 14:52, 1 August 2016
  • Petroleum reservoir fluid properties
    ...ion of initial [[fluid contacts]] possible in reservoirs with reasonable [[permeability]], that is, >1 md. A saturated gas cap in equilibrium with an underlying sa
    19 KB (2,721 words) - 21:21, 19 January 2022
  • Dolomite and dolomitization: Implications for reservoir characterization
    ...ne matrix (sucrosic dolomites) has intercrystalline porosity and excellent permeability (Machel, 2004). ...crystals occupying intergranular pores and fractures reduces porosity and permeability (Fig. 14b; Lucia, 2004; Martín-Martín et al., 2015; Kordi et al., 2017).
    38 KB (4,996 words) - 21:07, 21 April 2022
  • West Texas Super Basin
    ...low porosity, and low permeability to conventional reservoir porosity and permeability. These are typically proximal to quality source rocks and have enhanced rec ...d plays are interbedded fine-grained source rocks with higher porosity and permeability conventional reservoirs<ref>Jarvie, D. M, 2012a, [https://archives.datapage
    157 KB (23,278 words) - 18:36, 16 January 2024
  • Llanos basin
    ...because of the complex geological distribution of [[sediment]]ary units, [[permeability]] [[heterogeneity]] within a same geological unit, and the [[diagenesis|dia
    23 KB (3,247 words) - 22:50, 8 January 2019
  • Quick-look lithology from logs
    Carbonates often fail to show mudcake build-up despite good [[permeability]] because individual vuggy or moldic pores are too large to trap mud solids
    25 KB (3,637 words) - 19:39, 18 January 2022
  • Vaca Muerta play
    ...icant volumes of fluid flowed through these rocks, regardless of their low permeability, hence affecting their pore infill history. ...ressure, caused by thermal maturation of the kerogen and the extremely low permeability of the rock.<ref name=Notta /><ref>Cuervo, S., E. Lombardo, and J. Adachi,
    77 KB (11,201 words) - 20:07, 15 January 2024
  • Mudstone nomenclature
    ...to key economic variables: total organic carbon, hydrogen index, porosity, permeability, seal capacity, and geomechanical attributes (e.g., Poisson’s ratio, Youn ...3) water column energy level, and (4) rock properties such as porosity and permeability. Grain size is a commonly used attribute in descriptions and classification
    58 KB (8,391 words) - 19:46, 20 February 2024
  • Using and improving surface models built by computer
    ...r in the oil or gas portion of the reservoir is dependent upon porosity, [[permeability]], height above [[Fluid contacts|fluid contact]], and other factors. Genera
    40 KB (6,039 words) - 20:49, 19 January 2022
  • Shale-gas resource systems
    * Have less than 1000-ηd permeability | Permeability Range (Average) in nanodarcys || 0-70 (20) || 0-5000 (350) || 0-100 (10) ||
    73 KB (10,728 words) - 18:16, 11 January 2024
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