Closure Property and Evolution of Faults in Fuyu Reservoir in Chaochang Area of Daqing Oilfield， Heilongjiang Province<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

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Closure Property and Evolution of Faults in Fuyu Reservoir in Chaochang Area of Daqing Oilfield， Heilongjiang Province

详细信息

责任者：Zhou Yongbing (Exploration and Development Research Institute of Daqing Oilfield Company Ltd. ; Daqing 163712 ; China) ; Wang Xiujuan
刊名：Geoscience
出版年：2009
卷期：23(5)
关键词：断层封闭性 ; fault sealing property ; 黑龙江省 ; Heilongjiang Province
页码：p.880-886
图表：10 illus., 2 tables, 13 refs.
分类号：1003
issnNo：ISSN1000-8527
isbnNo：CN11-2035/P

摘要

Using Allan graphic method, shale smear factor method and fault gouge ratio method, this paper studied the lateral sealing characteristics of 8 faults in Fuyu reservoir in Chaochang area, Daqing oilfield. By use of the normal pressure of fault section and the intensity limit of plastic deformation of mudstone, the vertical sealing characteristics of these faults are studied. The lateral and vertical sealing degrees of these faults are identified in Nenjiang stage, later Mingshui stage and nowadays. Except fault No. 6, other faults were opening in later Nenjiang stage, so it is easy to delivery oil and gas from Qingshankou source rock, and the nearby region of fault No. 6 is lack of oil sources. Up to present, except fault No. 5, other faults are sealed; these sealed faults play a role of barrier to hydrocarbon migration from the already existing reservoir.

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