Geochemical Services

Custer/Roger Mills Counties, Oklahoma, USA

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Geology:

  • Anadarko Basin
  • Target: Pennsylvanian Red Fork gas – 15,000 ft
  • Hydrocarbon accumulations are trapped stratigraphically in an extensive channel system present over much of the basin

GORE® Survey Area

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Structural Cross Section A-A

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Map showing the GORE® Survey grid area and the client's paleo channel interpretation

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Survey Summary

  • Nine GORE® Surveys over three years included over 2,500 samples
  • Reconnaissance samples: 600-800 ft grid spacing
  • Detailed survey samples: 200-400 ft grid spacing
  • 120 mi2 coverage

Survey Results

  • Thirty wells drilled in conjunction with the information provided by the GORE® Survey
    • of the 22 wells drilled in areas identified by GORE® Survey as geochemically similiar to Red Fork gas: 21 produced commercial quantities of gas; one was dry
    • Of the eight wells drilled in areas identified by GORE® Survey as having no hydrocarbons: five were P&A; three were gas (however, one failed to repay completion costs)
    • 87% success rate! GORE® Survey is able to find charged areas of the sandstone channel
    • Client's net sand thickness isopach based on wells drilled post-survey closely matches the GORE® Survey result

    GORE® Survey results showing high probability areas for finding Red Fork gas (in red)

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