南海西部油田首次C环空带压隐患治理实践  

Treatment practice of the first hidden danger of pressure in C annulus in West Nanhai Oilfield

作　　者：李迎 Li Ying(Zhanjiang Branch of CNOOC(China)Co.,Ltd.,Zhanjiang Guangdong 524057)

机构地区：[1]中海石油(中国)有限公司湛江分公司,广东湛江524057

出　　处：《石化技术》2022年第1期67-68,共2页Petrochemical Industry Technology

摘　　要：南海西部油田Wen19-1B3S1生产过程中,出现C环空原油和气体泄漏情况。该类型隐患治理在南海西部油田尚属首次。治理过程中,创造性地解决了C环空下入小直径管深度、小直径管内高密度化学药剂连续泵入等问题,确保了封堵效果,为后续类似治理井积累了技术经验。During the production of wen19-1 b3 s1 in West Nanhai oilfield,crude oil and gas leakage occurred in C annulus.This type of hidden danger treatment is the first time in the western South China Sea Oilfield.During the treatment process,the problems such as the depth of C annulus into small diameter pipe and the continuous pumping of high-density chemicals in small diameter pipe were creatively solved,the plugging effect was ensured,and the technical experience was precipitated for subsequent similar treatment wells.

关 键 词：环空带压 化学封堵 小直径管 

分 类 号：TE58[石油与天然气工程—油气田开发工程]