双级固井技术在塔里木哈拉哈塘区块的应用  

APPLICATION OF TWO-STAGE CEMENTING TECHNOLOGY TO HALAHATANG BLOCK,TARIM BASIN

作　　者：胡旭光[1] 何世明[1] 彭晓刚[2] 白登相[2] 

机构地区：[1]西南石油大学石油工程学院 [2]中国石油塔里木油田公司

出　　处：《天然气勘探与开发》2014年第4期69-72,12-13,共4页Natural Gas Exploration and Development

基　　金：中国石油天然气股份有限公司科技重大专项课题(2010E-2109)"碳酸盐岩安全;快速;高效钻完井技术"

摘　　要：在塔北哈拉哈塘固井作业中,由于裸眼段、封固段较长,同一裸眼段地层存在多套压力系数,井筒内上下温差大,油气分布不均匀且存在裂缝型、溶洞型碳酸盐岩地层,采用常规固井极易诱发井漏,导致固井作业失败。针对以上情况,塔里木油田在该地区采用双级固井技术。应用结果表明:该技术在哈拉哈塘区块达到了预期的效果,应用的28口井固井质量全部合格,未出现井漏等复杂事故,缩短了施工时间,提高了固井质量。In northern Tarim Basin,some problems may emerge during cementing in Halahatang block because of longer openhole section and isolation section,multiple pressure coefficients existing at the same openhole section,great temperature difference between upper and lower wellbore,uneven oil and gas distribution,and coexistence of fractured and vuggy carbonate-rock formations.Moreover,conventional cementing is prone to induce lost circulation,resulting in a failure.So,this study recommends a technology of two-stage cementing.Its application results show that this technology can achieve an expected effect in Halahatang block.The cementing quality of all 28 applied well is qualified.No complex accidents such as lost circulation happen.It can not only shorten the drilling time but also enhance the cementing quality.

关 键 词：哈拉哈塘 井漏 双级固井技术 固井质量 

分 类 号：TE256[石油与天然气工程—油气井工程]