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Logging Evaluation to Tight Gas Reservoir in He-2 Member of Daniudi Gas Field

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  • 1.Langfang Branch of Research Institute of Petroleum and Development,PetroChina,Langfang 065007,China; 
    2.Petroleum Engineering Department,China University of Geosciences,WuHan 430074,China

Received date: 2009-03-22

  Revised date: 2009-07-02

  Online published: 2010-02-10

Abstract

The tight gas reservoir of He-2 member in DK30-D12 well area,Daniudi gas field is characterized by small porosity,low permeability and minor product.The heterogeneity to reservoir and productivity distribution occurs.The complexity of logging response results in the difficulty of identification and evaluation for the tight gas reservoir which was affected by physical property of reservoir and gas-bearing.By analyzing the features of logging response within this member,the parameters of neutron and resistivity logging are very sensitive.Thus,in combination with neutron,resistivity and density logging,this paper reconstructs feature parameters K1,K2 and establishes K1—K2 pattern which can qualitative evaluate gas AOF(absolute open flow).Additionally,in the light of different reflection toward gas between neutron and density logging,a relation between test nonresistance outflow and gas-bearing content which varies with different neutron and density logging is built,thus the gas AOF can be quantitative evaluation.

Cite this article

GUO Zhen-hua, ZHAO Yan-Chao . Logging Evaluation to Tight Gas Reservoir in He-2 Member of Daniudi Gas Field[J]. Natural Gas Geoscience, 2010 , 21(1) : 87 -94 . DOI: 10.11764/j.issn.1672-1926.2010.01.87

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