摘要
鄂尔多斯盆地处于中国中西部结合部位,是中国大型叠合含油气盆地之一,油气资源极为丰富。经过多年的勘探开发,鄂尔多斯盆地形成了“南油北气”的开发局面,建成了多个大型油气田。为了保持油气田的可持续开采,需要积极寻找可接替区域和层位。利用烃源岩资料、岩心资料及大量测井资料和试气资料对研究区潜在油气层位的储集性能、运移通道及测井响应特征进行了分析。结果表明研究区太原组致密灰岩、本溪组铝土质泥岩、延长组长7“张家滩页岩”、太原组、山西组和延安组煤层普遍微孔隙发育,具备一定的储集能力,加之研究区烃源岩丰富,在油气运移的过程中,这些地层在适当的条件下能够形成不同于常规致密砂岩的非常规储层,具有成为可接替层位的潜力。
Ordos Basin,located in the joint part of central and western China,is one of the large superposed oil-bearing basins in China,with extremely rich oil and gas resources.After years of exploration and development,Ordos Basin has formed a development situation of“south oil and north gas”,and has built several large oil and gas fields.In order to maintain the sustainable exploitation of oil and gas fields,it is necessary to actively look for the replacement area and stratum.The source rock data,core data,a large number of logging data and gas-testing data were used to analyze reservoir performance,migration channel and logging response characteristics of the potential oil and gas reservoirs in the study area.The results show that tight limestone of Taiyuan Formation,bauxitic mudstone of Benxi Formation,“Zhangjiatan shale”of Chang7,coal seam of Taiyuan,Shanxi and Yanan Formation with generally developed microspores,have a certain storage capacity.In addition,the study area is rich in hydrocarbon source rocks.In the process of oil and gas migration,these formations can form unconventional reservoirs different from conventional tight sandstone under appropriate conditions,with the potential to become replacement formations.
作者
刘文辉
潘和平
冉利民
LIU Wen-hui;PAN He-ping;RAN Li-min(College of Geosciences and Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China;Institute of Geophysics & Geomatics, China University of Geosciences, Wuhan 430074, China;Well Logging Company, North China Petroleum Engineering Limited Company of SINOPEC, Zhengzhou 450007, China)
出处
《科学技术与工程》
北大核心
2021年第15期6203-6210,共8页
Science Technology and Engineering
基金
国家自然科学基金(41804097,41604047)。
