准噶尔盆地车排子凸起沙湾组成藏主控因素  

Main Factors Controlling Hydrocarbon Accumulation in Neogene Shawan Formation in Chepaizi Swell of Junggar Basin

作　　者：罗劲[1] 庄新明[2] 韩祥磊[2] 

机构地区：[1]中国石化江汉油田分公司勘探开发研究院,湖北潜江433124 [2]中国石化胜利油田分公司地质科学研究院,山东东营257061

出　　处：《新疆石油地质》2008年第1期45-47,共3页Xinjiang Petroleum Geology

摘　　要：准噶尔盆地西缘车排子凸起是有利的复式油气聚集区,近年来在其新近系沙湾组沙二段发现了一批高产岩性油藏,实现了浅层勘探的重大突破。在研究剖析沙二段油气分布与典型油藏特征的基础上,重点对沙二段油气主控因素与成藏模式进行了探讨及总结,提出"湖扩滩坝砂、油气输导体系、侧向封堵条件、古构造脊"是控制油气成藏的4大要素和"远源、晚期聚集、多因素控藏"的油气成藏模式。指出,与古湖岸线平行分布的滩坝砂体是今后钻探的重点目标。Chepaizi swell in western margin of Junggar basin is a favorable area with composite hydrocarbon accumulation. In recent years. a number of prolific lithologic reservoirs have been discovered in the Sha-Ⅱ member of Neogene Shawan formation, representing an important breakthrough in shallow-depth exploration. This paper analyzes the hydrocarbon distribution and typical reservoir characteristics of the Sha-Ⅱ member, discusses its main factors controlling hydrocarbon accumulation and reservoir pattern, and proposes tour main elements to control hydrocarbon accumulation such as lake-enlarged beach bar sands, hydrocarbon conduit system, lateral barrier conditions and paleostructural crest, and the reservoir pattern controlled by multi-factors of distal source and lale accumulation, The beach hat sands parallel to the paleo-lake strandline could be the key target for further exploration.

关 键 词：准噶尔盆地 车排子油田 新近系 控制 因素 成藏模式 

分 类 号：TE112.1[石油与天然气工程—油气勘探]