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中国南方海相层系油气成藏特点与勘探方向
肖开华 沃玉进 周雁 田海芹
摘 要:在漫长的地质历史中,中国南方地层经历了多旋回构造运动与强烈后期改造,中、古生界油气的生成、运移、聚集成藏、保存和破坏经历了多期阶段式发展和演化的复杂过程.以四川盆地为代表的构造相对稳定、保存条件好的地区,具有多源供烃、早期聚集、油气转化、晚期定型的特点;中、下扬子中、新生界覆盖区,具有二次生烃、晚期成藏的特点;湘鄂西、滇黔桂等碳酸盐岩裸露区,则表现为早期生烃、后期破坏改造的特点.依据生烃期的早晚以及油气在完成初次聚集后至最终成藏定型是否突破了原始封闭体系,南方海相油气成藏模式可划分为原生型、次生型和再生型3种类型.依据不同地区的成藏条件与特点,南方海相领域的油气勘探应按重点展开、力求突破和区域侦察3个层次进行,即重点展开四川盆地区,力求突破黔西北地区、中扬子江汉平原南部及下扬子句容、海安地区,区域侦察黔南、滇桂及湘鄂西地区.
关键词:成藏条件;成藏特点;成藏模式;勘探方向;中国南方海相
分类号:TE112.3 文献标识码:A
文章编号:0253-9985(2006)03-0316-10
Petroleum reservoiring characteristics and exploration direction in marine strata in southern China
Xiao Kaihua Wo Yujin Zhou Yan Tian Haiqin
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基金项目:国家"十五"重点科技攻关项目(2004BA616A-06);中国石油化工股份有限公司科研项目(P03077)
作者简介:肖开华(1963-),男,高级工程师,石油地质
作者单位:肖开华(中国石油化工股份有限公司,石油勘探开发研究院,北京,100083)
沃玉进(中国石油化工股份有限公司,石油勘探开发研究院,北京,100083)
周雁(中国石油化工股份有限公司,石油勘探开发研究院,北京,100083)
田海芹(中国石油化工股份有限公司,石油勘探开发研究院,北京,100083;中国石油化工股份有限公司,南方勘探开发分公司,云南,昆明,650233)
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