地震断裂检测技术在塔河油田南部碳酸盐岩储层及油藏预测中的应用

doi:10.11743/ogg20130210

Abstract

Abstract:

The Ordovician Yijianfang carbonate reservoirs in southern Tahe oilfield are characterized by thin oil layer,complicated oil-water contact and control of fault on reservoir and hydrocarbon accumulation.The accuracy of seismic fault detection determines the accuracy of prediction of fault-controlled reservoir and the effects of exploration and deve-lopment.Based on the new reacquired high quality 3D seismic data,the Eigen coherent and ant tracking techniques are applied to detect faults on the south slope.The results of detection are combined with seismic profiles to perform fine interpretation of faults.The interpreted plane fault polygon is overlaid over the amplitude variation rate map from carbonate reservoir prediction to perform prediction of fault-controlled reservoirs.Two types of hydrocarbon enrichment patterns associated with fault are identified in the southern Tahe oilfield,namely major fault up-dip sealing type and branch fault up-dip sealing type.Exploration and development programs deployed according to these two patterns are successfully.

Key words: eigen coherent, ant tracking, amplitude variation rate, strike-slip fault, fault up-dip sealing, Tahe oilfield

CLC Number:

TE122.2

Liu Qun, Li Haiying, Deng Guangxiao. Application of seismic fault detection to carbonate reservoir prediction in southern Tahe oilfield[J]. Oil & Gas Geology, 2013, 34(2): 202-206.

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Application of seismic fault detection to carbonate reservoir prediction in southern Tahe oilfield

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