Research on Sand Body Identification and Gas Bearing Area Prediction of He-8 Member in SU X Well Block of Sulige Gas Field
Received date: 2010-05-24
Revised date: 2010-08-10
Online published: 2011-02-10
Reservoir of He-8 Member in SU X well block of Sulige gas field has strong heterogeneity，and conventional prediction methods is not satisfactory. Therefore，in order to identify sand body and predict gas bearing block in the research area, prestack and poststack reservoir prediction methods were used in the paper. Firstly, seismic attributes analysis and lithologic stochastic inversion were comprehensively used for sand body identification. On the basis of identification result and the analysis of the sedimentary characteristics, the distribution law of sedimentary microfacies of He-8 Member in the research area has been determined. Secondly, by comprehensively utilizing the results of seismic wavelet absorption coefficient analysis, AVO analysis and pre-stack elastic inversion, gas bearing potential for anomalies was interpreted on the section. Finally, combined with sedimentary microfacies distribution characteristic of He-8 Member and gas bearing analysis results，gas bearing block was synthetically evaluated. Drilling result shows that the multiple prediction method is good, complementing the disadvantages of each other, reducing the uncertainty of prediction results and providing a reliable basis for further development and deployment.
ZHANG Yu-Qing, WANG Zhi-Zhang, ZHANG Na . Research on Sand Body Identification and Gas Bearing Area Prediction of He-8 Member in SU X Well Block of Sulige Gas Field[J]. Natural Gas Geoscience, 2011 , 22(1) : 164 -170 . DOI: 10.11764/j.issn.1672-1926.2011.01.164
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