摘要
针对苏里格气田南区下古生界气藏产水严重、气水分布复杂的问题,利用地质、测井、录井、生产测试等资料对其气水分布规律及成因进行分析和总结。研究结果表明:下古气藏马五5地层水类型为CaCl2型,矿化度较高。在平面上,水体主要分布在研究区西部,水体发育相对独立,剖面上气、水分布无统一界面,井与井间连通性较差;气、水分布主要受烃源岩及生烃强度、储层非均质性、构造以及古地貌等因素的影响。进一步将研究区地层水模式总结为:受构造高点控制的边(底)水、构造底部滞留水、致密白云岩封隔的滞留水以及孤立白云岩形成的透镜体水。
In view of the serious water producing and complex gas-water distribution of the Lower Paleozoic gas reservoirs in the southern area of Sulige gasfield,the gas-water distribution law and its causes are analyzed and summarized by using geological,logging,mud logging and production testing data.It is shown that the formation water in lower Paleozoic Ma5 5 gas reservoir is CaCl 2 type with high salinity.On the plane,the water body is mainly distributed in the western part of the study area.The water body develops relatively independently.There is no uniform gas-water interface in the profile,and the connectivity between wells is poor.The distribution of gas and water is mainly influenced by factors such as source rock,hydrocarbon generation intensity,reservoir heterogeneity,structure and paleogeomorphology.The formation water distribution modes in the study area are further summarized as:edge (bottom) water controlled by structural highs,retained water at structural bottom,retained water sealed by dense dolomite and lenticular water body in isolated dolomite.
作者
杨引弟
肖晖
许文壮
田国庆
黄航娟
YANG Yindi;XIAO Hui;XU Wenzhuang;TIAN Guoqing;HUANG Hangjuan(College of Earth Science and Engineering,Xi'an Shiyou University,Xi'an 710065,Shaanxi,China;Key Laboratory of Shaanxi Province for Oil and Gas Accumulation Geology,Xi'an 710065,Shaanxi,China;Sixth Gas Production Plant,PetroChina Changqing Oilfield Company,Dingbian 718600,Shaanxi,China)
出处
《西安石油大学学报（自然科学版）》
CAS
北大核心
2019年第4期8-14,20,共8页
Journal of Xi’an Shiyou University（Natural Science Edition）
基金
国家自然科学基金项目(41102082)
陕西省科技厅研究发展计划项目(2012JQ5011)
陕西省教育厅重点研究计划(17JS109)
西安石油大学研究生创新与实践能力培养项目(YCS18112015)
关键词
地层水
气水分布
下古生界
苏里格气田
formation water
distribution of gas and water
lower Paleozoic
Sulige Gasfield
