Application of Wave Impedance Inversion Research ofPermian Reservoir in the Slope Area of Chenghai

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  • 1.Research Institute of Petroleum Exploration & Development-Northwest,PetroChina,Lanzhou 730020,China;
    2.Research Institute of Exploration and Development,Dagang Oilfield Company,PetroChina,Tianjin 300280,China

Received date: 2012-12-12

  Revised date: 2013-02-21

  Online published: 2013-12-10

Abstract

The geological conditions are complex in the Permian slope area of Chenghai in Dagang Oilfield,and the reservoir thickness varies in physical properties.It is difficult to find out the reservoir characteristics and distribution rules by using a single conventional inversion method.Therefore,we integrate the technologies of the sampling sites data statistics and a variety of seismic attributes on the basis of logging constrained inversion for the Permian strata after the fine interpretation of the re-processing singularity 3-D pre-stack time migration data of buried hill in Chenghai.After we complete reservoir prediction of the three Permian sand groups,the reliability of reservoir identification and inverse predictions are significantly improved.As a core technology of reservoir prediction,wave impedance inversion which predicts the distribution and thickness of the sand body by combining sampling sites data statistics and multiple attribute data plays an important role and gets significant geological effects in the exploration of the subtle reservoir in the slope area of Chenghai.
 

Cite this article

CAI Gang,YAO Jun,ZHANG Zhao-hui,LIU Juan-juan,DI Jun,YANG Zi-yu,YANG Fan . Application of Wave Impedance Inversion Research ofPermian Reservoir in the Slope Area of Chenghai[J]. Natural Gas Geoscience, 2013 , 24(6) : 1238 -1245 . DOI: 10.11764/j.issn.1672-1926.2013.06.1238

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