容积法储量计算中确定原始含油饱和度的常用方法研究——以A油田X区长2油层组为例  

Study on the Common Methods for Calculating the Original Oil Saturation of Reserve Calculation by Volume Method——Taking Chang 2 Formation in X Area of A Oil Field as an Example

作　　者：王霞[1,2] 刘凤林 周浪花[3] 靳星[1] WANG XIA;LIU Feng-lin;ZHOU Lang-hua;JIN XING(College of Petroleum Engineering and Environment Engineering,Yan′an University,Yan′an 716000,China;The School of Earth Science and Resources Chang′an University,Xi′an 710064,China;Changqing Oilfield Company No.1 Oil Production Plant,Yan′an 716000,China)

机构地区：[1]延安大学石油工程与环境工程学院,陕西延安716000 [2]长安大学地球科学与资源学院,陕西西安710064 [3]中国石油长庆油田公司第一采油厂,陕西延安716000

出　　处：《延安大学学报（自然科学版）》2018年第4期38-42,共5页Journal of Yan'an University：Natural Science Edition

基　　金：国家自然科学基金项目(41702136);延安市科技局项目(2015CHTD-04;2018KN-06);延安大学2017年科研计划项目(YDQ2017-22);延安大学2017年大学生创新创业训练项目(D2017122)资助

摘　　要：原始含油饱和度是容积法计算石油地质储量的一个重要参数,其准确与否影响着储量计算的精度。为求取油藏的原始含油饱和度,以A油田X区长2油层组为例,综合应用岩心分析测试、试油及测井等各项资料,详细介绍了密闭取心分析法、压汞法、相渗法和测井解释法确定原始含油饱和度时的各类图版及具体计算方法。长2油藏的原始含油饱和度计算结果,密闭取心分析法47.4%,压汞法48.3%,相渗法47.5%,测井解释法47.2%,测井解释计算值与岩心分析值误差不大,可以用于储量计算。研究为储量计算确定原始含油饱和度提供借鉴。Initial oil saturation is an important parameter in the calculation of petroleum geological reserves by volume method,and its accuracy affects the accuracy of the calculation of reserves.In order to calculate the original oil saturation of the reservoir,taking Chang 2 formation in X area of A oilfield as an example,this paper gives an introduction of sealing core drilling method,mercury intrusion method,relative permeability and log interpretation method on the basis of core analysis,oil test and logging data.The results of the calculation were 47.4%,48.3%,47.5%,and 47.2%.There was little error between the calculated value of log interpretation and the analysis value of core.Compared to the core analysis,the log interpretation result has small error,and can be used in the reserve calculation.The study provides a reference for the determination of the original oil saturation in the calculation of reserves in the future.

关 键 词：原始含油饱和度 密闭取心分析法 压汞法 相渗法 测井解释法 

分 类 号：TE121[石油与天然气工程—油气勘探]