也门马里卜-夏布瓦盆地基底油气成藏主控因素与成藏模式  

Study of hydrocarbon accumulation pattern and key control factors of the basement reservoir in the Marib-Shabwah Basin,Yemen

作　　者：许垣寅 冯方[2] XU Yuanyin;FENG Fang(Earth Science Institute,Jilin University,Changchun 130012,China;International Exploration Production Corporation of SINOPEC,Beijing 100083,China)

机构地区：[1]吉林大学地球科学学院,长春130012 [2]中国石化集团国际石油勘探开发有限公司,北京100083

出　　处：《成都理工大学学报（自然科学版）》2018年第2期229-238,共10页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：中国石油化工股份有限公司科技开发部项目(JP11021)

摘　　要：在前人研究的基础上,分析了也门马里卜-夏布瓦盆地基底油气藏形成的基本地质条件,探讨油气成藏的主控因素,建立油气成藏模式。研究表明,基底油气藏为"新生古储"式储盖组合,发育潜山断块油藏、潜山内幕裂缝油藏、披覆背斜砂岩油藏、砂岩上倾尖灭油藏等8种基底油气藏类型。油气成藏的主控因素为:基底层系和成熟烃源岩的位置关系决定了油气的充注方式;基底裂缝发育程度控制了潜山油气藏的分布位置、富集和贫化的差异;库兰组砂岩、风化壳组合既是油气运移通道,又是潜山油气藏的主要储层。油气成藏模式有近源侧向对接、远源复合输导2种类型。The basic conditions of oil and gas formation of the basement buried hill in the Marib-Shabwah Basin are analyzed,the major controlling factors on the reservoir formation are discussed and the reservoir formation model is established.It shows that the basement reservoir is characterized by old reservoir with relatively new sources,accompanied by the development of faulted burial hill oil pool,burial hill internal fracture oil pool,draping anticline sandstone oil pool and upward pinch out oil pool.The major controlling factors of basement oil pool are:(1)The favorable collocation of basement and source rocks determines the hydrocarbon filling mode;(2)Basement fracture zone controls the distribution and location of buried hill reservoirs;(3)The sandstone of Kuhlan Formation and weathering crust combination is not only the migration channel of oil and gas but also the main reservoir.It reveals that the hydrocarbon accumulation patterns are characterized by near-source lateral direct contact between source rocks and reservoir,and by remote-source composite migration.

关 键 词：马里卜-夏布瓦盆地 基底潜山 主控因素 成藏模式 

分 类 号：TE122.31[石油与天然气工程—油气勘探]