惠民凹陷临北地区基山砂体油气成藏主控因素研究  

Study on the Main Controlling Factors of Hydrocarbon Accumulation of Jishan Sand Body of Es3 in Linbei Area of Huimin Depression

作　　者：张震 刘太勋[1] 谢风猛[2] 孟阳[3] 何瑞武[2] 刘延峰[2] 张恒才[2] 闫斐 Zhang Zhen;Liu Taixun;Xie Fengmeng;Meng Yang;He Ruiwu;Liu Yanfeng;Zhang Hengcai;Yan Fei(School of Geosciences,China University of Petroleum,Qingdao Shandong 266580,China;Linpan Oil Production Plant,Shengli Oil Field Co.,Ltd.,Sinopec,Dezhou Shandong 251507,China;Management Center of Oil and Gas Development,Shengli Oil Field Co.,Ltd.,Sinopec,Dongying Shandong 257000,China)

机构地区：[1]中国石油大学(华东)地球科学与技术学院,山东青岛266580 [2]中国石化胜利油田分公司临盘采油厂,山东德州251507 [3]中国石化胜利油田分公司油气开发管理中心,山东东营257000

出　　处：《辽宁石油化工大学学报》2021年第3期48-56,共9页Journal of Liaoning Petrochemical University

基　　金：国家自然科学基金资助项目(41772138)。

摘　　要：临北地区位于惠民凹陷中央隆起带中部,针对该区沙三中亚段基山砂体的储层类型、圈闭规模及储层有效性不清等问题,从烃源条件、储层物性、沉积相展布以及构造特征等方面入手,通过钻井和试油成果资料,综合应用地质、地化分析和地球物理研究手段,剖析了油气成藏条件及主控因素。结果表明,紧邻的临南洼陷沙三段优质烃源岩是临北基山砂体的主要来源,和区内各期砂体在时空上的良好配置是油气藏形成的基础;区内发育的断裂和骨架砂体输导体系之间的相互配置关系,为油气提供良好的运移通道,使油气藏沿南北向成断阶式带状分布;沙三上亚段的泥岩及基山砂体顶部稳定的厚层泥岩、各期次砂体之间被泥岩分隔,且东西向上倾尖灭、沙三段发育封闭性较好的高矿化度原生CaCl2水型,同时部分断层侧向封堵,这些因素的共同作用为油气藏提供良好的保存条件。Linbei area was located in the middle of the central uplift zone of Huimin depression.Aiming at the problems of unclear reservoir type,trap scale and reservoir validity of the Jishan sand body in this area,starting from hydrocarbon source conditions,reservoir physical properties,distribution of sedimentary facies and structural features,through the data of drilling and oil testing results,comprehensive application of geological,geochemical analysis and geophysical research means,in depth analysis of hydrocarbon accumulation conditions and main control factors.The results show that:the high-quality source rock in the third member of Shahejie formation is the main source of Linbeijishan sand body,and the good configuration of sand bodies in different periods in time and space is the basis for the formation of hydrocarbon accumulation;the relationships between the developed faults and the pathway system of framework sand body in the area provides a good migration channel for oil and gas,which results in the zonal distribution of oil and gas reservoirs along the North-South fault steps;The mudstone in the upper part of the third member of Shahejie formation and the thick mudstone at the top of the Jishan sand body are stable,The sand body of each stage are separated by mudstone and pinched out from the east to the west,the high salinity primary CaCl2 water type with good sealing property developed in the third member of Shahejie formation and the lateral sealing of some faults act together to provided good preservation conditions for oil and gas reservoirs.

关 键 词：惠民凹陷 临北基山砂体 油气成藏 主控因素 输导体系 

分 类 号：TE121[石油与天然气工程—油气勘探]