水平井地质导向技术在海上油田薄油层开发中的应用  

Application of horizontal well geosteering technology in thin reservoir development of offshore oilfield

作　　者：薛成 谢明英 冯沙沙 涂志勇 陈一鸣 侯凯 XUE Cheng;XIE Mingying;FENG Shasha;TU Zhiyong;CHEN Yiming;HOU Kai(CNOOC China Limited Shenzhen Company,Shenzhen,Guangdong 518067,China)

机构地区：[1]中海石油(中国)有限公司深圳分公司

出　　处：《录井工程》2023年第4期42-48,共7页Mud Logging Engineering

摘　　要：针对海上油田薄油层开发面临的油层厚度薄、局部微构造变化、储层内部夹层发育、油水界面上升等问题,基于地球物理、开发地质、油藏工程、钻井工程、测录井工程等多学科综合运用的优势,总结出一套包括储层精细预测技术、高精度地质建模技术、油藏数值模拟技术和地层边界探测技术在内的多专业一体化海上油田薄油层地质导向技术。该项技术在A油田厚度约2 m薄油层应用过程中,分别从水平井的钻前综合分析、钻中实时调整和钻后地质认识3个阶段展开,最终水平段储层有效钻遇率达100%,投产后生产效果远超设计产能,为该油田薄油层产量最高井,对海上其他油田薄油层开发具有参数借鉴意义。Offshore thin reservoir development faces such problems as thin oil layer thickness,local micro-structural changes,inter-layer development in the reservoir,and rising oil-water interface.Based on the advantages of the comprehensive application of multiple disciplines such as geophysics,development geology,reservoir engineering,drilling engineering and logging engineering,we summarized a geosteering technology with multi-discipline and integration for thin reservoirs in offshore oilfield,which includes the reservoir fine prediction technology,the high-precision geological modeling technology,the reservoir numerical simulation technology and the formation boundary detection technology.The technology is applied in the thin reservoirs of about 2m thickness in A Oilfield,which is implemented from three stages:comprehensive analysis before drilling,real-time adjustment during drilling and geological understanding after drilling.The effective drilling rate of the final horizontal reservoir reaches 100%,and the production effect after being put into production is far higher than the design capacity.It is the well with the highest production in thin reservoirs in this oilfield,which is a good reference significance for the development of thin reservoirs in other offshore oilfields.

关 键 词：水平井 地质导向 薄油层 剩余油 一体化 珠江口盆地 海上油田 

分 类 号：TE132.1[石油与天然气工程—油气勘探]