准噶尔盆地玛湖1井区下乌尔禾组油层识别标准研究  

Study on Oil Reservoir Identification Standard of Lower Wuerhe Formation in Mahu-1 Well Area

作　　者：常天全[1] 赵彬 刘凯[1] 熊千 孔垂显[1] 李胜[1] 张宗斌[1] Chang Tianquan;Zhao Bin;Liu Kai;Xiong Qian;Kong Cuixian;Li Sheng;Zhang Zhongbin(Research Institute of Exploration and Development,Xinjiang Oilfield Company,PetroChina,Karamay,Xinjiang,834000,China;School of Geosciences,Yangtze University,Wuhan,Hubei,430100,China)

机构地区：[1]中国石油新疆油田公司勘探开发研究院,新疆克拉玛依834000 [2]长江大学地球科学学院,湖北武汉430100

出　　处：《新疆地质》2021年第2期270-274,共5页Xinjiang Geology

摘　　要：玛湖1井区下乌尔禾组整体勘探程度不高,储层评价中缺少准确油层识别标准,需建立正确区分识别储层流体性质的油层识别标准。通过全区岩电参数和地层水电阻率平面分布规律分析,保证单井含水饱和度计算精度;基于玛湖1井区下乌尔禾组储层四性关系分析,明确下乌尔禾组电性-含油性和物性关系;结合深电阻率、测井计算含水饱和度、测试资料及岩心含油性资料,建立玛湖1井区下乌尔禾组油层识别标准;定义含油孔隙度参数,将油层划分为Ⅰ类油层、Ⅱ类油层和Ⅲ类油层3个等级。该油层识别及油层等级标准能快速有效确定玛湖1井区下乌尔禾组储层流体性质,为该区储量计算和产能评价提供支撑。The overall exploration degree of lower Wuerhe formation in mahu-1 well block is not high,there is a lack of accurate reservoir identification standard in reservoir evaluation.It is necessary to establish reservoir identification standard which can correctly distinguish and identify reservoir fluid properties.Through the analysis of the plane distri-bution of rock electrical parameters and formation water resistivity in the whole area,ensure the accuracy of single well water saturation calculation;based on the analysis of the four property relationship of the lower Wuerhe formation reser-voir in Mahu-1 well area,the relationship between the electrical property,oil bearing property and physical property of the lower Wuerhe formation is clarified.Finally,combining with the deep resistivity,logging calculation of water satura-tion,test data and core oil-bearing data,the reservoir identification standard of lower Wuerhe formation in Mahu-1 well area is established.And we define the parameter of oil-bearing porosity to divide the oil reservoir into three grades:Class Ⅰ,Class Ⅱ,Class Ⅲ.The reservoir identification standard and oil reservoir grade can quickly and effectively determine the fluid properties of lower Wuerhe formation in Mahu-1 well area,and provide support for reserve calculation and pro-ductivity evaluation in this area.

关 键 词：下乌尔禾组 四性关系 岩电参数分布规律 地层水电阻率分布规律 油层识别标准 

分 类 号：P618.130.21[天文地球—矿床学]