New Insights into Petroleum Migration-Accumulation Dynamic Systems and Their Division within Petroleum Systems

作     者：赵靖舟 Ihsan S Al-aasm 

作者机构：School of Earth Sciences and EngineeringXi'an Shiyou University Department of Earth and Environmental SciencesUniversity of Windsor 

出 版 物：《Journal of Earth Science》 (地球科学学刊（英文版）)

年 卷 期：2012年第23卷第5期

页      面：744-756页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0708[理学-地球物理学] 0818[工学-地质资源与地质工程] 0704[理学-天文学] 

基　　金：supported by the Key Project of Science and Technology of China (No. 2011ZX05007-004) 

主　　题：petroleum migration accumula-tion migration-accumulation system petroleumsystem. 

摘      要：Since the concept of petroleum migration-accumulation dynamic system （PMADS） was introduced in the 1990s, its definition, division and even denomination have long been in disagreement. This article aims to further discuss and try to clarify this concept and to explore more reasonable approaches to the division of PMADSs on the basis of our studies on petroleum migration and accumulation in some pe- troliferous basins of China, especially those from western China. According to the studies, we define PMADS as a relatively independent natural hydrocarbon migrating and accumulating system within a petroleum system. Its extent is supposed to cover the whole migration pathway starting from a hydrocarbon provenance throughout to an accumulation or a group of accumulations of same source. Just like petroleum systems, a petroleum migration-accumulation system is also an important natural unit for petroleum exploration and assessment in petroleum basins. Its position in a basin is right between a petroleum system and a play. A pe- troleum system has either a number of migration-accumulation systems or one system only. However, the key element of a petroleum system is the source of hydrocarbon; a petroleum system has a distinct hydrocarbon kitchen and is different from its neighboring ones in terms of hydrocarbon kitchens. In contrast, different migration-accumulation systems within the same petroleum system have a shared source kitchen but differ-ent characteristics of migration and accumulation to form hydrocarbon accumulations. As far as the division of petroleum migration-accumulation systems （PMASs） is concerned, 8 major approaches are proposed, including those based on pool-forming dynamic mechanisms, location of hydrocarbon accumulation rela- tive to the source kitchen, phase states of migration and accumulation, migration patterns and directions, geneses of accumulations, reservoir pressure systems, depositional systems and facies, and integrated method, of which the