断裂输导油气的机制及侧向分流控制因素探讨

现代地质 ›› 2014, Vol. 28 ›› Issue (5): 1023-1031.

断裂输导油气的机制及侧向分流控制因素探讨

姜大朋，代一丁，刘丽华，张超，李振升

(中海石油(中国)有限公司深圳分公司研究院，广东广州510240)

出版日期:2014-10-25 发布日期:2014-12-29
作者简介:姜大朋，男，工程师，1983年出生，石油地质学专业，主要从事沉积地质及断裂控藏研究。 Email：jiangpeng0716@163.com。
基金资助:
国家科技重大专项(2011ZX05023-006)。

A Discussion on Fault Conduit Mechanism and Control Factors of Petroleum Lateral Diversion

JIANG Da-peng, DAI Yi-ding, LIU Li-hua, ZHANG Chao, LI Zhen-sheng

(Institute of Shenzhen Branch,CNOOC Ltd,Guangzhou, Guangdong510240,China)

Online:2014-10-25 Published:2014-12-29

摘要/Abstract

摘要：

断裂是具有复杂内部结构的地质体，是地下油气运移的重要通道。断裂可向空间各个方向输导油气，其中，纵向输导加侧向分流是断裂输导油气成藏的基本方式。在断裂活动周期的不同阶段，断裂输导油气的机制存在差异，特点也不尽相同；用圈闭充满度作为评定侧向分流强度的依据，分别比较储层、上覆泥岩、断层各要素与其相关性，综合评定认为上覆泥岩厚度是控制侧向分流的主要因素，储层厚度次之；总结认为，断裂输导具有“断-盖”联控的特点；珠一坳陷断裂输导成藏具有“双峰型”特征，区域性盖层与输导机制耦合控制了充注高峰分布。

关键词: 断裂输导, 侧向分流, 上覆泥岩, “断-盖”联控

Abstract:

Fault is a complex internal structure geological body, that was an important migration pathway of petroleum. Oil and gas can migration along fracture in all directions, but vertical and lateral transportation is a primary way for hydrocarbon accumulation. At different stages of the fault activity cycle, fault conduit mechanism of transporting petroleum is different, and their characteristics are varied. Oil richness can be used to judge the strength of lateral diversion. By compared it with reservoir thickness, overlaying shale thickness and element of fault, it is concluded that overlaying shale thickness is a main factor to control lateral diversion, and reservoir thickness is the secondary factor. In conclusion, (1)Fault conduit has a characteristic of “faulting-cap rock” joint control feature. (2)Zhu 1 Sag has the characteristic of “two peaks” in hydrocarbons accumulating via carrier faults, and the peak of petroleum infilling is decided on regional caprock and fault conduit mechanism.

Key words: fault conduit, lateral diversion, overlaying shale, “faulting-cap rock&rdquo, joint control

中图分类号:

TE122.1

姜大朋，代一丁，刘丽华，张超，李振升. 断裂输导油气的机制及侧向分流控制因素探讨[J]. 现代地质, 2014, 28(5): 1023-1031.

JIANG Da-peng, DAI Yi-ding, LIU Li-hua, ZHANG Chao, LI Zhen-sheng. A Discussion on Fault Conduit Mechanism and Control Factors of Petroleum Lateral Diversion[J]. Geoscience, 2014, 28(5): 1023-1031.