A quantitative evaluation method for ancient lateral sealing of fault

doi:10.7623/syxb2013S1009

Editorial office of ACTA PETROLEI SINICA ›› 2013, Vol. 34 ›› Issue (增刊一): 78-83.DOI: 10.7623/syxb2013S1009

• Petroleum Exploration • Previous Articles Next Articles

A quantitative evaluation method for ancient lateral sealing of fault

FU Guang, YANG Mian, LÜ Yanfang, SHI Jijian

College of Earth Science, Northeast Petroleum University; Key Laboratory of Oil-Gas Reservoir Formation Mechanism and Resource Evaluation of Heilongjiang Province, Daqing 163318, China

Received:2013-03-01 Revised:2013-07-05 Online:2013-09-25 Published:2013-09-15

断层古侧向封闭性定量评价方法及其应用

付广, 杨勉, 吕延防, 史集建

东北石油大学地球科学学院黑龙江省油气藏形成机理与资源评价重点实验室黑龙江大庆 163318

通讯作者: 付广
作者简介:付广,男,1962年11月生,1984年毕业于大庆石油学院,2006年获大庆石油学院油气田地质工程专业博士学位,现为东北石油大学教授、博士生导师,主要从事油气藏形成与保存研究。Email:fuguang2008@126.com
基金资助:
国家重大科技专项"中国大型气田形成条件、富集规律及目标评价(二期)"(2011ZX05007)资助

Abstract

Abstract:

According to lateral sealing mechanism of fault, this study establishes a quantitative evaluation method for ancient lateral sealing of fault in the key stage of hydrocarbon accumulation with a calculation method for present displacement pressure of fault rocks that considers compaction diagenetic pressure and time of fault rocks, and with a combination of techniques for recovery of ancient burial depth and evaluation of fault activity. The method is applied to a quantitative evaluation of ancient lateral sealing of fault B₂₉ at the stage of hydrocarbon accumulation in Beier sag, Hailaer Basin. Results show that in fault B₂₉, reservoirs (except reservoir No.8)are presently sealed,and reservoirs (except reservoirs No.8)were sealed laterally in the stage of hydrocarbon accumulation (end of deposition of Yimin Formation). The evaluation result is consistent with drilling result of Well Bei-302 in the study area. Thus, the proposed method is applicable for evaluating ancient lateral sealing of fault.

Key words: fault, ancient lateral sealing, fault rock, displacement pressure, compaction diagenetic depth, quantitative evaluation

摘要：

根据断层侧向封闭机理,以综合考虑断层岩压实成岩压力和压实成岩时间而建立的断层岩现今排替压力计算方法为基础,结合古埋深恢复和断层活动性评价等技术,建立了油气成藏关键时期的断层古侧向封闭性定量评价方法,并利用该方法对海拉尔盆地贝尔凹陷B₂₉断裂在油气成藏期的古侧向封闭性进行了定量评价。结果表明,除了8号储层外,其余储层该断层现今和在油气成藏期(伊敏组沉积末期)侧向上均是封闭的。该评价结果与目前贝302井钻探结果有着较好的吻合关系,表明该方法用于断层古侧向封闭能力评价是可行的。

关键词: 断层, 古侧向封闭性, 断层岩, 排替压力, 压实成岩埋深, 定量评价

CLC Number:

TE112

FU Guang, YANG Mian, Lü Yanfang, SHI Jijian. A quantitative evaluation method for ancient lateral sealing of fault[J]. Editorial office of ACTA PETROLEI SINICA, 2013, 34(增刊一): 78-83.

付广, 杨勉, 吕延防, 史集建. 断层古侧向封闭性定量评价方法及其应用[J]. 石油学报, 2013, 34(增刊一): 78-83.

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A quantitative evaluation method for ancient lateral sealing of fault

断层古侧向封闭性定量评价方法及其应用

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