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• Diagenetic trap regime
  ...4 | Diagenetic traps || rowspan = 2 | Diagenetic reservoirs; Form where [[porosity]] is created as a result of local [[Diagenesis|diagenetic processes]] such ...sult of localized leaching of nonreservoir-quality rock to create enhanced porosity and [[permeability]]. Common beneath [[unconformity]] surfaces.
  5 KB (645 words) - 16:14, 13 April 2022
• Coal bed methane (UDip)
  ...free gas or can be saturated with water. The system is then called a “dual-porosity reservoir”, one characterized by a complex interaction of the coal matrix ==The porosity and permeability of coal==
  10 KB (1,576 words) - 14:42, 2 April 2019
• Sequences during high-amplitude, high-frequency cycles
  * [[Porosity]] plugged by caliche at sequence caps .../www.oxforddictionaries.com/us/definition/american_english/cap-rock cap] [[porosity]] is intergranular in shoals and in nondolomitized build-ups
  6 KB (761 words) - 13:47, 7 April 2022
• Morrow lithofacies and pore types: Sorrento field
  ...we see a picture of a clastic reservoir with wide heterogeneity in total [[Porosity|porosities], [[Pore and pore throat sizes|pore-throat sizes]], and [[capill ...solution?) porosity also may be present but is minor. (For definitions of porosity types, see [[Reservoir quality]].)
  6 KB (769 words) - 17:23, 11 April 2022
• Density-neutron log porosity
  ...] data, especially in formations of complex lithology. Better estimates of porosity are possible with the combination than using either tool or sonic separatel ...y to porosity using charts in a log interpretation chartbook, or calculate porosity from bulk density using this equation:
  12 KB (1,763 words) - 16:18, 5 April 2022
• Meteoric diagenesis
  ...le, A color guide to the petrography of carbonate rocks: Grains, textures, porosity, diagenesis: [http://store.aapg.org/detail.aspx?id=649 AAPG Memoir 77] p. 3
  648 bytes (87 words) - 15:34, 10 December 2015
• Bioturbation
  ...or reworking of sediment by living organisms. It may enhance or decrease porosity and permeability. For instance, burrows filled with sand grains in a mud or
  907 bytes (132 words) - 21:42, 18 September 2014
• Sequences during low-amplitude, high-frequency cycles
  **Dolomitized intertidal laminites (intercrystalline [[porosity]]) **Siliciclastic supratidal caps (intergranular porosity)
  5 KB (708 words) - 21:00, 6 April 2022
• Pressure compartments
  * [[Porosity]] loss due to compaction is less in overpressured and more in underpressure ...educes the supply of free ions associated with cementation and secondary [[porosity]] formation.
  6 KB (828 words) - 17:57, 17 February 2022
• Types of diagenetic traps
  * Primary [[porosity]] preserved due to selective [[Reservoir quality#Cementation|cementation]] * [[Secondary porosity]] created by cement and/or matrix dissolution
  2 KB (294 words) - 21:01, 4 February 2022
• Sandstone
  ...orosity and increase the bed thinning. Deep burial cause decrease the sand porosity dramatically. [[File:Sandstone_Fig-3.png|thumb|300px|Fig. 3. Porosity and Compaction (Derived form Nichols)<ref name=Nichols />]]
  10 KB (1,508 words) - 15:44, 22 March 2019
• Sandstone permeability prediction from texture
  ...-60.png|300px|thumb|{{figure number|1}}Grain size affects permeability and porosity.<ref name=ch09r11>Coalson, E. B., Hartmann, D. J., and Thomas, J. B., 1990, ...nce_fig9-60.png|Figure 1]] shows how grain size affects permeability and [[porosity]].
  9 KB (1,118 words) - 17:03, 6 April 2022
• Cased hole tools
  ...ty and water salinity are known. The porosity devices are used to estimate porosity when lithology is known. Table 1 lists the types of devices used for these | rowspan = 2 | [[Porosity]] || [[Basic open hole tools#Compensated neutron|Compensated neutron]]
  10 KB (1,427 words) - 16:26, 18 January 2022
• Core-to-log transformations and porosity-permeability relationships
  | chapter = Core-log transformations and porosity-permeability relationships ...lity-relationships_fig1.png|{{figure number|1}}Plot showing unshifted core porosity in spiked format, together with bulk density log.
  14 KB (1,893 words) - 20:15, 2 February 2016
• Log interpretation: initial quick scan
  Determining the [[porosity]] and [[True resistivity determination|true resistivity]] of a zone is the ...ich to measure changes. In this case, the [[Basic_open_hole_tools#Porosity|porosity log]] is the primary reconnaissance measurement. By first finding the porou
  4 KB (543 words) - 14:11, 21 August 2014
• Decompaction
  ...ts be corrected to their original thickness before burial using a specific porosity-depth function for each [[lithologic]] unit. This involves sequential [[bac
  1,008 bytes (139 words) - 19:54, 25 June 2015
• Geostatic and lithostatic pressure
  * [[Porosity|Porosities]] of different lithologies * φ = weighted average of rock [[porosity]]
  3 KB (402 words) - 14:47, 16 February 2022
• Fracture traps
  ...ture traps may not. Some might argue that [[fracture]]s are just another [[porosity]] type and should be thought of as part of the [[reservoir]], not as a trap ...rvoir'''—Reservoir in which most of the [[permeability]] and some of the [[porosity]] is provided by open fractures.
  3 KB (461 words) - 16:04, 13 April 2022
• Intact membrane seal leakage
  ...pressure) is less than the capillary displacement pressure of the matrix [[porosity]] of the seal. Under these conditions, the relative [[permeability]] of the ...occurs, oil can leak through the [[fracture]]s without invading the matrix porosity.
  3 KB (475 words) - 17:08, 1 February 2022
• Diagenesis: information from petrology
  | Primary [[porosity]] preservation || Indicates facies patterns may control hydrocarbon distrib ...rap location; mineralogy and/or facies may control location of dissolution porosity || Use [[sequence stratigraphy]], hydrologic, or thermal maturity models.<r
  4 KB (544 words) - 21:38, 4 February 2022

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