中东某孔隙型碳酸盐岩油藏水平井水淹层测井识别方法  

A method for water-flooded layer identification of horizontal wells for porous carbonate reservoir in Middle East

作　　者：王士新 杨志国[1] 刘晓亮[1] 赵德丽 刘厚武 李怀彪 WANG Shixin;YANG Zhiguo;LIU Xiaoliang;ZHAO Deli;LIU Houwu;LI Huaibiao(CNOOC Energy Development Co.,Ltd.,Tianjin 300459,China;International Branch,China Petroleum Logging Corporation,Beijing 102206,China)

机构地区：[1]中海油能源发展股份有限公司,天津300459 [2]中国石油测井公司国际公司,北京102206

出　　处：《石油化工应用》2024年第5期89-94,共6页Petrochemical Industry Application

基　　金：国家科技重大专项“海外重点油气田开发钻采关键技术”(2017ZX05032-004)。

摘　　要：中东某孔隙型碳酸盐岩油藏采用直井和水平井结合边部和底部注水进行开发,部分水平井存在低阻产油、高阻出水的情况,给测井解释和油田开发带来极大困扰。在系统总结研究区低阻成因的基础上,充分利用随钻测井和钻杆传输测井资料,构建电阻率“时间推移测井”,进行水平井流体性质识别,并建立了识别图版,取得了较好效果。进而通过对水淹分布和水淹路径的分析,提出两种主要的水淹模式,即底水垂向稳步上升模式和边水侧向快速突进模式,为油藏稳油控水、高效开发提供了科学依据。In the Middle East a porous carbonate reservoir employs vertical and horizontal wells to produce oil accompanying with water injection from bottom and edge water zone.Some horizontal wells produce water in high resistivity reservoir and some produce oil in low resistivity reservoir,which confused engineers in log interpretation and reservoir development.The paper first summarizes the low resistivity causes,then establishes time-lapsed resistivity log based on while-drilling log and pipe-convoyed log to identify fluid properties for horizontal wells,and the identification plate is established,and good results are obtained.Further,two principle waterflooded patterns come into being based on analyzing water distribution and waterflooding path,which are vertical bottom water flooded pattern and horizontal edge water flooded pattern,which provide scientific basis for oil stability,water control and efficient development.

关 键 词：碳酸盐岩 水淹模式 低阻成因 水平井 时间推移测井 

分 类 号：TE122.22[石油与天然气工程—油气勘探]