探矿工程-岩土钻掘工程Issue(3)：33-36,4.
水泥浆失重对高压油气井固井质量的影响分析及工艺对策
Analysis on the Impact of Weight Loss of Cement Slurry on Cementing Quality for High-pressure Oil and Gas Well and the Technical Countermeasures
秦国宏 1覃毅 1尤凤堂 1程春红 1李沧波 1吴成坤1
作者信息
- 1. 渤海钻探工程有限公司第一固井分公司，河北任丘062552
- 折叠
摘要
Abstract
The high-pressure formation has attracted high attention in the entire drilling engineering process of high-pressure oil and gas well, and there may be low-pressure thief zones in some of the high-pressure oil and gas wells.In the solidifica-tion period of cementing, cement slurry will have weight loss and fluid column pressure in the entire wellbore will be low-ered.If the liquid column pressure is lower than the formation pressure in weightlessness well section, the formation fluid will invade the annulus to cause channeling, even lead to well control incidents;if the liquid column pressure is higher than strata ( fracture) pressure, the formation leakage will occur, and further cause oil and gas reservoir pollution with less vol-ume cement slurry returning.Therefore, proper handling the relationship between dynamic pressure and formation pressure and the formulation of relevant emergency measures are the key of success in high-pressure oil and gas well cementing.关键词
高压油气井/水泥浆失重/固井质量Key words
high-pressure oil and gas wells/weight loss of cement slurry/cementing quality分类
能源科技引用本文复制引用
秦国宏,覃毅,尤凤堂,程春红,李沧波,吴成坤..水泥浆失重对高压油气井固井质量的影响分析及工艺对策[J].探矿工程-岩土钻掘工程,2015,(3):33-36,4.
