白家海凸起油气成藏机理及其主控因素  

Petroleum Accumulation Mechanism and Controlling Factors in Baijiahai Swell,Junggar Basin

作　　者：胡海燕[1] 吴坚[2] 黄芸[2] 谭思哲[1] 陈元勇[1] 刘作强[1] 

机构地区：[1]长江大学地球科学学院,湖北荆州434023 [2]中国石油新疆油田分公司勘探开发研究院地球物理研究所,乌鲁木齐830013

出　　处：《新疆石油地质》2013年第2期137-139,共3页Xinjiang Petroleum Geology

基　　金：国家自然科学基金(41002045);湖北省教育厅自然科学基金(Q20101311)

摘　　要：从油气来源、输导体系、古构造演化等方面探讨白家海凸起成藏的主控因素。油气主要是源于二叠系烃源岩、侏罗系煤系烃源岩以及两者的混源;断裂、构造脊-砂体是其有利的输导体系;白家海凸起古构造高点在地质历史时期发生多次迁移和变迁,现在的油气藏主要沿古构造高点展布。烃源岩生、排烃时,处于开启状态的断裂和砂体为油气运移的优势通道,油气沿着此通道运移至古构造高点,后期的构造运动对古圈闭影响较小,因此,造成现今的油气藏沿古构造高点分布的特点。The control factors of petroleum accumulation in Baijiahai swell of Junggar basin are discussed in terms of oil/gas source, trans-port system and paleo-structural evolution, etc. The results show that the oil/gas source originated from the Permian hydrocarbon source rock, the Jurassic coal-measure source rock and both of them; the fault/fractures, structural ridge-sand body are as the favorable transport system; the multi-migration and changes occurred in its geological history period for the paleo-structural highs in this swell, and the reser-voirs discovered nowadays are mainly distributed along these highs. When hydrocarbons in the source rocks were generated and expelled, the opened fractures and sand bodies became the preferred oil/gas migration pathways until the oil/gas entered into the paleo-highs. And the paleo-traps were seldom influenced by late tectonic movements. Therefore, the present reservoirs in this area are all characterized by their distributions along the paleo-highs.

关 键 词：准噶尔盆地 阜康凹陷 白家海凸起 成藏机理 主控因素 

分 类 号：TE112.41[石油与天然气工程—油气勘探]