平衡压力固井工艺在束探1H(P)井的应用  

Application of Balanced Pressure Cementing Technology in Well Shutan1H(P)

作　　者：秦国宏 宋元洪 刘书冬 王福昌 谈涛 

机构地区：[1]渤海钻探工程公司第一固井分公司

出　　处：《钻井液与完井液》2013年第5期63-66,100,共4页Drilling Fluid & Completion Fluid

摘　　要：束探1H(P)井由于井下同时存在高压、易漏地层,钻进和通井过程中发生过严重的油气侵、溢流、漏失等复杂情况,钻井液安全密度窗口窄、井径极不规则、循环排量低,固井难度和风险非常大。通过使用三凝双密度水泥浆封固不同层段地层、利用冲洗液和前隔离液来平衡水泥浆增加的压差、向水泥浆中加入纤维堵漏材料增强地层承压能力的方法实现平衡压力固井,最终顺利地完成了该井的固井施工,水泥浆一次性封固4 093.8 m,固井质量优质。Some difficulties are encountered in well Shutan1H(P),such as high pressure formation and leakage formation,oil and gas over flow,lost circulation,narrow drilling fluid safety window,poor wellbore quality,low circulation flow rate and high risk of cementing job.The balanced pressure cementing is successfully applied in this well by using three-thickening time and doubledensity cement slurry,flush fluid and spacer and fiber lost circulation material,which the section of 4,093.8 m is cemented at one time,and the cementing quality is excellent.

关 键 词：平衡压力 高压 固井 固井质量 易漏 溢流 束探 

分 类 号：TE256[石油与天然气工程—油气井工程]