中国海相残留盆地油气资源潜力评价技术探索  

Method for appraising hydrocarbon resource potential in relict marine basins in China

作　　者：徐旭辉[1] 朱建辉[2] 金晓辉[1] 

机构地区：[1]中国石油化工股份有限公司石油勘探开发研究院,北京100083 [2]中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所,江苏无锡214151

出　　处：《石油与天然气地质》2010年第6期865-870,共6页Oil & Gas Geology

摘　　要：从活动论构造历史观出发,应用"原型控源、叠加控藏"的研究思路,分析了古中国陆、古亚洲陆和新亚洲陆3个地史阶段中陆缘与陆内盆地的形成演化,探索了中国古生界海相残留盆地TSM盆地模拟资源评价技术。研究认为中国古生代海相盆地在纵向上主要发育下寒武统、中上奥陶统—下志留统和二叠系3套烃源岩。下寒武统烃源岩分布于被动大陆边缘靠陆一侧,中上奥陶统—下志留统烃源岩分布于台内坳陷,二叠系烃源岩分布于陆内裂陷-坳陷盆地,被动边缘坳陷是烃源岩最有利发育区。烃源岩主要包括碳酸盐岩和泥质岩两类。通过原型盆地约束下的地质作用-油气响应确定性数学模拟方法进行网络整合,提供油气资源评估和位置预测,从而评价了古生代海相盆地原型的发育和后期叠加改造演化的过程及其油气意义。该方法在华北地区上古生界烃源岩潜力的评价应用中,取得了较好的效果。According to the theory of mobilism and the idea of ＂prototype basin controlling hydrocarbon sources and superimposition of basins controlling hydrocarbon accumulation＂,we studied the formation and evolution of continental marginal and intra-continental basins during the geological histories of the ancient Chinese Continent,the ancient Asian Continent and the new Asian Continent,and probed the TSM basin modeling method for resource evaluation in Chinese relict Paleozoic marine basins.Vertically,3 sets of source rocks including the Lower Cambrian,the Middle-to-Upper Ordovician-Lower Silurian and the Permian were developed in Chinese Paleozoic marine basins.The Lower Cambrian source rocks were developed on the land-side of passive continental margin,the Middle-to-Upper Ordovician-Lower Silurian ones in intra-platform depression and the Permian ones in intra-continental rifted-downwarping basins.Depressions on passive continental margin were the most favorable for development of source rocks.There are mainly two types of source rocks,namely carbonates and argillites.Through prototype basin-constrained quantitative mathematical modeling of geologic process-hydrocarbon responses,we performed network integration and appraisal of petroleum resource potential.The development of the Paleozoic marine prototype basins and their later superimposition and evolution as well as their petroleum significances are discussed.This method has been successfully applied to the appraisal of the Upper Paleozoic source rock potential in North China.

关 键 词：叠加改造 TSM盆地模拟资源评价技术 原型盆地 海相残留盆地 中国 

分 类 号：TE122.3[石油与天然气工程—油气勘探]