准噶尔盆地夏9井区八道湾组油水倒置型油藏特征及成因  

Oil-water Inversion and Its Genetic Mechanism of Badaowan Reservoir in Well Block Xia 9 of Junggar Basin

作　　者：余成林[1] 林承焰[1] 王正允[2] 

机构地区：[1]中国石油大学地球资源与信息学院,山东东营257061 [2]长江大学地球科学学院,湖北荆州434023

出　　处：《石油天然气学报》2008年第5期32-36,共5页Journal of Oil and Gas Technology

基　　金：国家重点基础研究发展计划(973计划)项目(G1999022508)

摘　　要：准噶尔盆地夏9井区八道湾组油藏主体位于一个向南西方向倾伏的鼻状背斜构造上,具典型的油水倒置特点,属油水倒置型油藏。以岩心、测井和多种分析测试资料为基础,综合研究认为,夏9井区八道湾组油藏构造简单,区内无断层分布,不存在上倾方向的构造遮挡,油藏的油水倒置特征主要由各砂组构造高部位的成岩遮挡所致,并与构造坡折、沉积微相差异和优质盖层等因素有关;取道于夏9井区八道湾组但尚未在此聚集的油气向更高部位运移的过程中,逢适当的圈闭可能聚集成藏,相邻区域八道湾组更高部位的有效圈闭是下步油气勘探的重要目标。Badaowan Oil Reservoir of Well Block Xia 9 in Junggar basin was mainly located in a nosing anticline structure plunging into the southwest,and it had a typical character of oil/water inversion.Based on the data of core analysis,well logging and X diffraction of clay minerals etc,the oil and water distribution rules and its controlling factors were analyzed..The results indicate that the character of oil/water inversion is mainly determined by the effectiveness of diagenetic barrier and many other factors such as tectonic slope-break,difference of microfacies and cap rocks under the condition of no fault screen and no lithologic pinchout in the higher tectonic part.The hydrocarbons passed through Badaowan Formation in Well Block Xia 9 would accumulate in appropriate traps during its upward migration.The effective traps of Badaowan Formation in the upper zone of adjacent districts are the key targets for further exploration.

关 键 词：准噶尔盆地 八道湾组 油水倒置 控制因素 成岩遮挡 夏9井区 

分 类 号：P618.13[天文地球—矿床学]