Horizontal air drilling increases gas recovery in depleted zone

Elrod, J P

Title: Horizontal air drilling increases gas recovery in depleted zone

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Abstract

Increased gas recoveries in depleted gas zones can be achieved through horizontal air drilling. In December 1995, OXY USA Inc. drilled the Pirkle 2, the first air-drilled horizontal well in the Carthage field of Texas. Targeting the Cretaceous Frost ``A`` zone of the lower Pettit limestone at 6,000 ft true vertical depth, the well established production in a 1,400 ft lateral section with a bottom hole pressure (BHP) of 185 psi. The initial BHP for the zone was 3,280 psi in 1942. As of April 27, 1997, the Pirkle 2 had produced 530 MMcf of gas at a rate of 1.1 MMcfd. Total cumulative gas production for the lower Pettit limestone in the Carthage field was 3.83 tcf as of January 1997. The paper discusses reservoir properties, abandonment pressure, minimizing well bore damage, drilling fluid selection, special equipment and modifications, compressors, BOPs, steering tools, drilling, completion, and production.

Authors:

Elrod, J P ^[1]

OXY USA Inc., Houston, TX (United States)

Publication Date:: Mon Jun 30 00:00:00 EDT 1997

OSTI Identifier:: 495458

Resource Type:: Journal Article

Journal Name:: Oil and Gas Journal

Additional Journal Information:: Journal Volume: 95; Journal Issue: 26; Other Information: PBD: 30 Jun 1997

Country of Publication:: United States

Language:: English

Subject:: 03 NATURAL GAS; NATURAL GAS WELLS; DIRECTIONAL DRILLING; TEXAS; WELL PRESSURE; PRODUCTION; DRILLING FLUIDS; WELL COMPLETION

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                    Elrod, J P. Horizontal air drilling increases gas recovery in depleted zone.  United States: N. p., 1997. 
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                    Elrod, J P. Horizontal air drilling increases gas recovery in depleted zone.  United States.

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                    Elrod, J P. 1997.  
        "Horizontal air drilling increases gas recovery in depleted zone".  United States.

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@article{osti_495458,

  title        = {Horizontal air drilling increases gas recovery in depleted zone},

  author       = {Elrod, J P},

  abstractNote = {Increased gas recoveries in depleted gas zones can be achieved through horizontal air drilling. In December 1995, OXY USA Inc. drilled the Pirkle 2, the first air-drilled horizontal well in the Carthage field of Texas. Targeting the Cretaceous Frost ``A`` zone of the lower Pettit limestone at 6,000 ft true vertical depth, the well established production in a 1,400 ft lateral section with a bottom hole pressure (BHP) of 185 psi. The initial BHP for the zone was 3,280 psi in 1942. As of April 27, 1997, the Pirkle 2 had produced 530 MMcf of gas at a rate of 1.1 MMcfd. Total cumulative gas production for the lower Pettit limestone in the Carthage field was 3.83 tcf as of January 1997. The paper discusses reservoir properties, abandonment pressure, minimizing well bore damage, drilling fluid selection, special equipment and modifications, compressors, BOPs, steering tools, drilling, completion, and production.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/495458},
  journal      = {Oil and Gas Journal},
number       = 26,

  volume       = 95,

  place        = {United States},

  year         = {Mon Jun 30 00:00:00 EDT 1997},

  month        = {Mon Jun 30 00:00:00 EDT 1997}

}

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