青平川油区长2油藏水驱采收率计算及评价  

Water drive recovery calculation and evaluation of Chang 2 reservoir in Qingpingchuan oil area

作　　者：王桐 金心岫 陈雅彤 WANG Tong;JIN Xinxiu;CHEN Yatong(College of Petroleum Engineering,Xi’an Shiyou University,Xi’an,Shanxi 710065,China;NO.2 Oil Production Plant of Changqing Oilfield Company,PetroChina,Qingyang,Gansu 745113,China)

机构地区：[1]西安石油大学石油工程学院,陕西西安710065 [2]中国石油长庆油田公司第二采油厂,甘肃庆阳745113

出　　处：《石油地质与工程》2022年第6期67-71,共5页Petroleum Geology and Engineering

摘　　要：青平川油区构造上处于鄂尔多斯盆地东部,储层物性较差,前人采收率计算方法少且计算不准确,针对存在问题,采用静态参数法和动态法共13种方法对研究区采收率进行定量计算,通过对各种方法对比分析,并结合研究区油藏地质特征,优选出合理的采收率计算方法。研究表明,产量递减法得出的采收率与标定的采收率最为接近,是最适合研究区的采收率计算方法,得到的采收率为13.63%。Located in the east of Ordos basin,Qingpingchuan oil areahas poor reservoir physical properties.Previous recovery calculation methods are few and inaccurate.In view of the existing problems,13 methods including static parameter and dynamic methods are used to quantitatively calculate the oil recovery in the study area.Through the comparative analysis of various methods,combined with the geological characteristics,a reasonable recovery calculation method is optimized.The results show that the recovery factor obtained by the production decline method is the closest to the calibrated recovery factor,which is the most suitable method for the study area,and the recovery factor obtained is 13.63%.

关 键 词：青平川长2油藏 采收率 产量递减法 水驱曲线 

分 类 号：TE357[石油与天然气工程—油气田开发工程]