防斜打快技术在库车前陆区的实践应用  

Application of Deflection Control While Fast Drilling in Kuqa Foreland Area

作　　者：梁红军 刘洪涛 颜辉 陈凯枫 阳君奇 周智 LIANG Hongjun;LIU Hongtao;YAN Hui;CHEN Kaifeng;YANG Junqi;ZHOU Zhi(Oil and Gas Engineering Research Institute,PetroChina Tarim Oilfield Company,Bazhou 841000,Xinjiang,China;Xinjiang Ju-hang Petroleum Engineering Technology Co.,Ltd.,Bazhou 841000,Xinjiang,China)

机构地区：[1]中国石油塔里木油田分公司油气工程研究院,新疆巴州841000 [2]新疆聚航石油工程技术有限公司,新疆巴州841000

出　　处：《新疆石油天然气》2023年第2期49-55,共7页Xinjiang Oil & Gas

基　　金：中国石油天然气股份有限公司勘探与生产分公司工程技术攻关项目“库车山前复杂探井钻完井技术研究”(C201801.02.09)。

摘　　要：库车山前地区主要地质特征为逆冲推覆构造,地层岩性变化大、夹层多,使用传统钻具组合,机械钻速偏低,防斜打快难度较大。引进试验垂直钻井系统后工具多次出现井下工作无信号、控斜效果差等问题,且综合日费昂贵。为了解决上述问题,在博孜34井采用高效聚晶金刚石复合片(PDC)钻头+大扭矩弯螺杆,与邻井博孜18井采用PDC钻头+旋转导向垂直钻井PowerV钻进方式相比,单只钻头进尺提高74%,平均机械钻速提高116%。配合随钻测斜(MWD)实时监控,在有效提高机械钻速、降低井斜的同时,大幅度降低了钻井成本,有力地推动了库车前陆区油气资源的高效勘探开发。The main geological characteristics of the Kuqa Piedmont area are thrusting nappe structure,featuring wide changes of stra-tum lithology and many interbeds.Traditional drilling assembly delivers low rate of penetration and make it difficult to achieve deflec-tion control while fast drilling.After the vertical drilling system was introduced,many problems occurred,for example,the tools had no signals in downhole operation,the deflection control effect was poor and the daily cost was very high.In order to solve these problems,high-efficiency Polycrystalline Diamond Compact(PDC)bit+high-torque bending screw were used in Bozi 34 well.Compared with the PDC bit+PowerV rotary vertical drilling used in adjacent Bozi18 well,the footage of a single bit was increased by 74%and the av-erage rate of penetration rose by 116%.Combined with MWD real-time monitoring,it improves rate of penetration and reduces well de-flection,while also significantly cuts drilling costs,contributing to the efficient exploration and development of oil and gas resources in the Kuqa foreland area.

关 键 词：防斜打快 实时监控 PDC钻头 弯螺杆 库车 

分 类 号：TE242[石油与天然气工程—油气井工程]