Pore geometry: Control on reservoir properties, Walker Creek Field, Columbia and Lafayette Counties, Arkansas

Bliefnick, D M; Kaldi, J G

Title: Pore geometry: Control on reservoir properties, Walker Creek Field, Columbia and Lafayette Counties, Arkansas

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Abstract

Walker Creek field in southern Arkansas produces hydrocarbons from oolitic packstones and grainstones of the Jurassic Smackover Formation. The relationships between pore geometry and reservoir quality in these rocks were evaluated using petrographic methods and mercury injection capillary pressure analyses. Results indicate that reservoir quality is controlled by pore geometry, which, in turn, is determined by depositional and diagenetic processes. Reservoir rocks at Walker Creek were deposited as prograding grainstone shoals in a shallow-water, high-energy environment. Diagenetic processes, including early marine cementation, compaction, and deeper burial pressure solution and calcite cementation, modified the original pore system. Primary interparticle porosity is the dominant effective pore type and is most important in terms of reservoir performance. Secondary microporosity is also abundant, comprising a significant percentage of total porosity (locally up to 100%), but is generally ineffective.

Authors:

Bliefnick, D M; Kaldi, J G ^[1]

ARCO Oil & Gas Company, Plano, TX (United States)

Publication Date:: Mon Jul 01 00:00:00 EDT 1996

OSTI Identifier:: 263029

Resource Type:: Journal Article

Journal Name:: AAPG Bulletin

Additional Journal Information:: Journal Volume: 80; Journal Issue: 7; Other Information: PBD: Jul 1996

Country of Publication:: United States

Language:: English

Subject:: 02 PETROLEUM; RESERVOIR ROCK; POROSITY; DIAGENESIS; ARKANSAS; OIL FIELDS; PETROLEUM DEPOSITS; JURASSIC PERIOD

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                    Bliefnick, D M, and Kaldi, J G. Pore geometry: Control on reservoir properties, Walker Creek Field, Columbia and Lafayette Counties, Arkansas.  United States: N. p., 1996. 
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                    Bliefnick, D M, & Kaldi, J G. Pore geometry: Control on reservoir properties, Walker Creek Field, Columbia and Lafayette Counties, Arkansas.  United States.

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                    Bliefnick, D M, and Kaldi, J G. 1996.  
        "Pore geometry: Control on reservoir properties, Walker Creek Field, Columbia and Lafayette Counties, Arkansas".  United States.

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@article{osti_263029,

  title        = {Pore geometry: Control on reservoir properties, Walker Creek Field, Columbia and Lafayette Counties, Arkansas},

  author       = {Bliefnick, D M and Kaldi, J G},

  abstractNote = {Walker Creek field in southern Arkansas produces hydrocarbons from oolitic packstones and grainstones of the Jurassic Smackover Formation. The relationships between pore geometry and reservoir quality in these rocks were evaluated using petrographic methods and mercury injection capillary pressure analyses. Results indicate that reservoir quality is controlled by pore geometry, which, in turn, is determined by depositional and diagenetic processes. Reservoir rocks at Walker Creek were deposited as prograding grainstone shoals in a shallow-water, high-energy environment. Diagenetic processes, including early marine cementation, compaction, and deeper burial pressure solution and calcite cementation, modified the original pore system. Primary interparticle porosity is the dominant effective pore type and is most important in terms of reservoir performance. Secondary microporosity is also abundant, comprising a significant percentage of total porosity (locally up to 100%), but is generally ineffective.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/263029},
  journal      = {AAPG Bulletin},
number       = 7,

  volume       = 80,

  place        = {United States},

  year         = {Mon Jul 01 00:00:00 EDT 1996},

  month        = {Mon Jul 01 00:00:00 EDT 1996}

}

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