X油田注水井欠注原因分析及治理  

Cause analysis and treatment effect analysis of injection wells under-injection in X oil field

作　　者：李瑞雪 陈凯 邢川衡 赵云斌 王晓超 LI Rui-xue;CHEN Kai;XING Chuan-heng;ZHAO Yun-bin;WANG Xiao-chao(CNOOC Enter Tech-Drilling&Production Co.,Tianjin 300452,China;CNOOC China Limited Tianjin Branch,Tianjin 300459,China)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300452 [2]中海油(中国)有限公司天津分公司,天津300459

出　　处：《精细与专用化学品》2024年第12期22-26,共5页Fine and Specialty Chemicals

摘　　要：为了保证海上油田能够持续高产稳产,“注好水、注够水、有效注水”是关键。X油田自2021年投产以来,虽然注水时间短,但是已暴露出注入压力高、欠注程度高以及增注能力严重受限等问题。通过分析油田地质油藏特征和注水现状,开展了注水配伍性及其他潜在储层伤害因素的研究,包括注水水质伤害评价及机理研究、储层敏感性研究以及完井过程储层伤害评价;明确了影响油田欠注的主、次因素,为油田欠注井采取增注措施提供了参考。In order to ensure the continuous high and stable production of offshore oil fields,“good water injection,enough water injection and effective water injection”are the key points.Since the operation of X oil field in 2021,although the water injection time was short,the problems such as high injection pressure,high degree of under-injection,and seriously limited injection capacity have been exposed.Based on the analysis of geological reservoir characteristics and water injection status,researches on water injection compatibility and other potential reservoir damage factors were carried out,including water injection quality damage evaluation and mechanism study,reservoir sensitivity study,reservoir damage evaluation during well completion.The main and secondary factors affecting under-injection of oil field were clarified,providing a reference for taking injection measures for under-injection wells in the oilfield.

关 键 词：欠注 影响因素 降压增注 效果评价 

分 类 号：TE39[石油与天然气工程—油气田开发工程]