对水泥封窜中的钻塞过程使用的动力设备和钻头进行了比较,配套使用螺杆钻加PDC钻头钻水泥塞,简化了工序,实现了可由普通作业队承担水泥封窜封堵施工,从而可降低整体施工成本。设计和研制了三合一管柱,经现场试用其性能基本良好,可减少管柱起下次数,节约工时和缩短施工工期。针 Cement seal channeling in the drilling process using the power equipment and drill bit were compared with the use of screw drilling plus PDC bit drilling cement plug, simplifying the process, achieved by the ordinary operations team to seal cement sealing channel closure construction, which can be Reduce the overall construction costs. Designed and developed a three-in-one column, the field trial of its performance is basically good, can reduce the number of columns from the tube, save working hours and shorten the construction period. needle