联X30井拔套管侧钻钻井技术  

CASING WITHDRAWAL AND SIDETRACKING TECHNOLOGY IN WELL LX30

作　　者：熊永锋[1] 黎学年[1] 黄志安[1] 陈美林[1] 

机构地区：[1]江苏石油勘探局钻井处

出　　处：《钻采工艺》2004年第4期11-13,108,共4页Drilling & Production Technology

摘　　要：联X30井是江苏油田第一口试验在老井套管中钻成常规井眼的大斜度侧钻预探井 ,与在 139.7套管内开窗侧钻井相比 ,很好地解决了大斜度小井眼施工困难、小井眼机械钻速低和小井眼固井质量难以保证等难题 ,为今后老油区的开发开辟了新的途径。通过爆炸切割脱扣 ,成功地拔出了 139.7套管 ,实施了常规井眼侧钻和井眼轨迹控制 ,采取了一系列降摩技术措施 ,很好地完成了联X30井拔套管侧钻施工。Well LX30 is a highly deviated preliminary prospecting well which is first tested drilling a conventional borehole in original wellbore in Jiangsu Oilfield.Comparing with sidetracking well in 139.7mm casing,the problems such as drilling difficulties,low drilling speed and unstable cementing quality etc.in slim holes have been solved.By means of exploding and cutting casing,We pulled 139 7 casing out of the well and complted sidetracking in conventional borehole and fulfilled well trajectory control.By use of a series of reducing friction techniques,casing withdrawal and sidetracking operation was accomplished successfully in well LX30.

关 键 词：侧钻工艺 钻井技术 井眼 轨迹控制技术 定向井 井身结构 井漏 

分 类 号：TE243[石油与天然气工程—油气井工程] TE28