临兴地区浅层气井钻固井技术研究与应用  

Research and Application of Drilling and Cementing Technology for Shallow Gas Wells in Linxing Area

作　　者：李建 冯雷[1] 和鹏飞 王烊 王涛[1] 李洪磊 Li Jian;Feng Lei;He Pengfei;Wang Ye;Wang Tao;Li Honglei(Shanxi Branch,CNOOC Energy Technology&Services Limited,Jinzhong,Shanxi 030600,China;Supervision Centre,CNOOC Energy Technology&Services Limited,Tanggu,Tianjin 300452,China)

机构地区：[1]中海油能源发展股份有限公司山西分公司,山西晋中030600 [2]中海油能源发展股份有限公司监督中心,天津塘沽300452

出　　处：《石油工业技术监督》2020年第9期18-20,共3页Technology Supervision in Petroleum Industry

摘　　要：针对临兴地区上部压力高下部压力低、浅层气地层成岩性较差,可钻性好,造浆性强,钻进过程中易发生憋漏现象,固井作业需要全封,井底压力高,易发生漏失的问题。通过井身结构优化,采用一开导管封固技术、强封堵高密度钻井液技术、随钻压力控制技术、防气窜水泥浆+管外封隔器固井技术等,形成一套高效钻井技术,成功地解决了浅层气井开发难题,实现了安全、高效开发。In Linxing area,the upper formation pressure is high,the lower formation pressure is low,the shallow gas formation has poor diagenesis,good drillability,strong slurry making,and leakage is easy to occur during drilling.Due to the high bottom hole pressure,leakage is easy to occur,so the cementing operation needs to be fully sealed.A set of high-efficiency drilling technology is formed by optimizing wellbore structure and adopting one-trip conduit sealing technology,high-density drilling fluid with strong sealing ability,pressure control while drilling,anti gas channeling cement slurry+external packer cementing technology,which successfully realizes the safe and efficient development of shallow gas.

关 键 词：浅层气 强封堵高密度钻井液 随钻压力控制 防气窜水泥浆 管外封隔器固井 

分 类 号：TE256[石油与天然气工程—油气井工程]