东辛复杂断块油气田成藏特征

蒋有录

doi:10.11743/ogg19980112

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东辛复杂断块油气田成藏特征
POOL-FORMING CHARACTERS OF COMPLEX FAULT-BLOCK OIL AND GAS FIELDS IN DONGXIN
1998年19卷第1期页码：68-73
网络首发：1998-03-25，

纸质出版：1998
DOI： 10.11743/ogg19980112
稿件说明：

移动端阅览

蒋有录. 东辛复杂断块油气田成藏特征[J]. 石油与天然气地质, 1998,19(1):68-73. DOI： 10.11743/ogg19980112.

Jiang Youlu. POOL-FORMING CHARACTERS OF COMPLEX FAULT-BLOCK OIL AND GAS FIELDS IN DONGXIN[J]. 1998, 19(1): 68-73. DOI： 10.11743/ogg19980112.

摘要

我国最大的复杂断块油气田——东辛油气田的油气源充足、储集层发育、继承性发育的隆起带构造背景十分有利于油气的聚集。断裂多期活动致使油气纵向运移活跃

油气沿断裂运移、聚集。断层强烈活动期

流体沿断裂向上快速注入式运移；断裂相对不活动期

断层逐渐封闭

进入浅部地层的油气沿断层形成次生油气藏

从而形成纵向上多层组含油气

原油忽轻忽重

油气藏沿断层呈叠瓦式展布

自下而上依次形成油藏→油气藏→气藏的完整序列。

Abstract

China’s largest complex fault-block oil and gas fields-Dongxin oil and gas fields possess sufficient oil and gas sources and well developed reservoir rocks.The inherited uplift helts developed there are favourable for hydrocarbon accumulation.Multi stage faultings resulted in active vertical migration of oil and gas.During bady faulting

hydrocarbons were injected upward along the faults;during stable stage

faults closed gradually

and hydrocarbon that entered shallow strata migrated along the faults to form secondary oil and gas pools

thus forming vertical multi layer hydrocarbon assemblayes.The pools imbricated and formed oil pool

→

oil-gas pool

→

gas pool sequences in ascending order.