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• Anhydrite
  ...transformed to anhydrite at depth because of the increase in temperature. Anhydrite beds are often seals for [[trap]]s.
  387 bytes (52 words) - 13:34, 26 March 2015

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• Anhydrite
  ...transformed to anhydrite at depth because of the increase in temperature. Anhydrite beds are often seals for [[trap]]s.
  387 bytes (52 words) - 13:34, 26 March 2015
• Evaporite
  ...ls associated with petroleum exploration are [[halite]], [[gypsum]], and [[anhydrite]]. ...|Anhydrite from Chihuahua, Mexico. Courtesy [https://en.wikipedia.org/wiki/Anhydrite Wikipedia].
  1 KB (143 words) - 18:48, 3 March 2016
• Gypsum
  ...H₂O). When dewatered at temperatures above 200°C, it becomes [[anhydrite]].
  583 bytes (83 words) - 21:19, 9 December 2014
• Diagenetic trap regime
  ...,_diagenesis,_and_flow_characterization#Evaporite_mineralization|secondary anhydrite precipitating]] in original pore spaces. | Diagenetic seals || Secondary anhydrite barrier || Subunconformity diagenesis || colspan = 2 | Cementation
  5 KB (645 words) - 16:14, 13 April 2022
• Intact membrane seal leakage
  [[Claystone]]s, [[Halite|salt]], and sulfates ([[gypsum]] and [[anhydrite]]) make seals of this sort because they are ductile under most geological s Deeply buried claystones, salts, and anhydrite have capillary displacement pressures great enough to exceed the [[buoyancy
  3 KB (475 words) - 17:08, 1 February 2022
• Fault-dependent leak points, continuity, and charge
  ...Oil & Gas Journal, vol. 90, no. 43, p. 127–130.</ref> Where the Buckner [[anhydrite]] is continuous, there is no Haynesville play.
  4 KB (556 words) - 20:56, 31 March 2022
• Depositional trap regime
  ...pdip pinch-outs of sandstone into an impermeable facies such as shale or [[anhydrite]]. ...updip pinch-outs of sandstone into an impermeable facies such as shale or anhydrite.
  10 KB (1,231 words) - 20:28, 4 January 2024
• Diagenetic traps: criteria for recognition
  ...yclopedia2.thefreedictionary.com/poikilotopic poikilotopic] calcite, and [[anhydrite]] ...the Midale [[dolomite]] above the potential bottom seal of the Frobisher [[anhydrite]] and beneath the top seal of the Mesozoic section. If only these trapping
  5 KB (611 words) - 21:06, 4 February 2022
• Diagenetic impact on traps
  ...]] and top seals in the [[Carbonate|dolomite]] reservoir were created by [[anhydrite]] cementation during early diagenesis. Primary facies changes do not contro
  2 KB (297 words) - 21:06, 3 February 2022
• Midale lithofacies and distribution
  ...s to grainstones. The principal occluding cements are sparry calcite and [[anhydrite]]. ...wndip from the truncation edge of the Midale, the rocks change facies into anhydrite.
  6 KB (842 words) - 18:50, 4 December 2023
• Reservoir system quality prediction
  | Cement mineralogy || [[Quartz]], [[calcite]], [[dolomite]], [[clay]], and [[anhydrite]], etc. || [[Aragonite]], high- and low-Mg calcite, dolomite
  3 KB (425 words) - 17:11, 5 April 2022
• Israel petroleum systems
  ...94 || Mohilla || Shelf carbonate || Oil || Structural || Unknown || Mohila anhydrite || 0.13 || 2.2 ...|| Shoreline Sandstone || Oil || Structural || Mt. Scopus Group || Mohila anhydrite || 0.013 || &ndash;0.013
  10 KB (1,276 words) - 21:00, 19 July 2016
• Seal ductility
  ...type control ductility. Brittle seals include [[dolostone]], quartzite, [[anhydrite]], and some shales. Ductile seals include [[halite]], some shales, and some
  4 KB (510 words) - 15:22, 30 March 2022
• Carbonate diagenesis
  ...in tidal flat environments and is an effective reservoir seal. Diagenetic anhydrite is found in reservoir rocks as nodules and [[poikilotopic crystal]]s, which ...In the dolomite environment, grainstone bars are commonly cemented with [[anhydrite]], and [[intercrystalline porosity]] in mud-supported sediments forms the p
  23 KB (3,026 words) - 20:48, 19 January 2022
• Combining well log with seismic sequence analysis
  ...nts#Sequence_boundaries|sequence boundary]] (T55) overlain and sealed by [[anhydrite]] and [[Evaporite|salt]]. A pronounced wavelet peak forms on an underlying
  5 KB (746 words) - 16:54, 4 February 2022
• Quick-look lithology from logs
  | [[Anhydrite]], [[halite]] || 8–15 ====Anhydrite and gypsum====
  25 KB (3,637 words) - 19:39, 18 January 2022
• Weyburn field location and trap problem
  ...Midale vuggy beds from a vuggy grainstone to a vuggy [[mudstone]] to an [[anhydrite]].
  6 KB (848 words) - 17:34, 3 January 2024
• Silurian Qusaiba shales
  ...n where the deposition of mainly shallow-water [[carbonate]]s with minor [[anhydrite]]s and [[shale]]s occurred (Cantrell et al., 2014<ref name=Cantrelletal2014 ...r being the [[Arab Formation]]). Regional [[seal]]s are provided by Arab [[anhydrite]]s and the evaporitic [[Hith Formation]]. The [[Mesozoic Petroleum System|M
  18 KB (2,569 words) - 22:50, 8 January 2019
• Log analysis: lithology
  ...[sandstone]] and [[limestone]], limestone and [[dolomite]], dolomite and [[anhydrite]], and sandstone and shale. ...and to estimate volumes of calcite, [[quartz]], dolomite, clay, feldspar, anhydrite, and salt. Once porosity is determined, saturation can be estimated from th
  25 KB (3,189 words) - 17:24, 18 January 2022
• Influence of depositional environment on sandstone diagenesis
  | Grain-coating clays; in areas that were alternately moist and dry [[anhydrite]], [[dolomite]], or calcite common
  8 KB (1,129 words) - 14:11, 6 April 2022

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