河南油田新庄、杨楼区块稠油热采井固井水泥浆  

Cement Slurry Used in Heavy Crude Thermal Production Wells in Xinzhuang,Yanglou Blocks in He'nan Oilfield

作　　者：沙林浩[1] 高永会[1] 燕平[1] 何德清[2] 宋福军[2] 

机构地区：[1]中国石油集团工程技术研究院 [2]河南油田钻井公司固井技术服务公司

出　　处：《钻井液与完井液》2007年第5期41-43,共3页Drilling Fluid & Completion Fluid

摘　　要：针对河南油田新庄、杨楼稠油热采井固井施工中存在的问题,通过对固井水泥石强度耐高温机理的分析、高强低密度水泥浆体系的研究及耐高温低密度水泥浆性能试验,筛选出了较为适宜的热采井固井水泥添加剂及其适用配比,设计出了耐高温高强低密度水泥浆配方。该配方具有低温早强、失水量低、水泥浆体稳定、水泥石致密、微触变等特点,较好地解决了水泥石高温下强度衰退和固井过程中水泥浆漏失的问题。A cement slurry formulation was developed for use in Xinzhuang and Yanlou Blocks in He’nan oilfield, where heavy crude oil was produced thermally, thus necessitated the use of cement slurry having high temperature tolerance. The formulated cement slurry had advantages such as early strength at low temperatures, reduced filtration rate, dense set cement and micro thixotropy, etc. The declination of set cement strength at high temperatures, and slurry losses during cementing in high temperature wells were solved using this cement slurry system.

关 键 词：热采井 固井技术 强度衰退 低密度水泥浆 耐高温水泥浆 

分 类 号：TE256.6[石油与天然气工程—油气井工程]