高温高压高含硫气井固井水泥环封隔能力评价技术

发布时间：2017-12-31 13:20

本文关键词：高温高压高含硫气井固井水泥环封隔能力评价技术　出处：《石油钻采工艺》2016年06期 　论文类型：期刊论文

【摘要】：随着中海油海上及海外复杂油气田大力开发,高温高压高含硫井开采数量不断增多,固井水泥环封隔性能失效引起的环空带压或酸性气体泄漏问题,已经成为制约高温高压高含硫气田安全作业和生产的瓶颈。从分析固井水泥环封隔能力影响因素、失效机理等方面出发,总结了高温高压高含硫固井水泥环封隔能力失效的主要原因,分析认为在高温高压高含硫条件下水泥石力学性能和结构变化是影响水泥环封隔能力的重要因素之一;结合高温高压高含硫井特点,设计了固井水泥环封隔能力评价思路,建立了固井水泥环层间封隔能力评价方法,提出了改善水泥环长期封隔能力的技术措施,为提高高温高压高含硫固井水泥环密封完整特性和延长油气井生产寿命,提供了新的工程技术发展方向与解决途径。
[Abstract]:With CNOOC offshore and overseas oil and gas development complex, the number of high temperature and high pressure wells with high sulfur content increasing, cement packer performance caused by the failure of annulus pressure or acid gas leakage problem has become a bottleneck of high temperature and high pressure high sulfur gas field operations and production safety. From the analysis of the factors of cement sealing ring the ability to influence, failure mechanism, summarizes the main reason of high temperature and high pressure high sulfur cement isolation ability failure, analysis the performance and structure of cement mechanical changes in high temperature and high pressure under the condition of high sulfur content is one of the important factors affecting the isolation ability of cement with high temperature and high pressure; high sulfur wells characteristics, design cement sealing ability evaluation ideas, establish the cementing layer between the sealing ability evaluation method, put forward the technical measures to improve the long-term isolation ability of cement In order to improve the sealing performance of high temperature, high pressure and high sulfur cementing cement sheath and extend the production life of oil and gas well, new engineering technology development direction and solution are provided.

【作者单位】：中海油研究总院;
【基金】：国家科技重大专项子课题“海上油气井压力完整性及寿命评估技术研究”(编号:2011ZX05024-003-04)
【分类号】：TE256
【正文快照】： Citation:WU Zhiqiang,LIU Shujie,GENG Ya’nan,YUE Jiaping,ZHOU Jianliang.Evaluation technology for isolation capacityof cement sheath in HTHP high-sulfur gas wells[J].Oil DrillingProduction Technology,2016,38(6):787-790.随着海上及海外油气勘探开发的不断深

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