CAJ | 학술논문

华北油田任密1H等井压裂采用了泵送式复合桥塞分段压裂工艺，压裂放喷后出现桥塞砂埋现象，需要钻磨桥塞提高产量。通过对桥塞分段压裂工艺特点分析，找出了钻磨桥塞的难点并制定相应方案。根据井况分别采用连续油管底带螺杆钻、普通油管底带螺杆钻加自制的旋流式四翼凹底磨鞋等工艺对任密1H、太密1X井钻磨桥塞，实现了一趟管柱连续钻磨5个和4个桥塞，实现了快捷、安全施工。
화북유전임밀1H등정압렬채용료빙송식복합교새분단압렬공예，압렬방분후출현교새사매현상，수요찬마교새제고산량。통과대교새분단압렬공예특점분석，조출료찬마교새적난점병제정상응방안。근거정황분별채용련속유관저대라간찬、보통유관저대라간찬가자제적선류식사익요저마혜등공예대임밀1H、태밀1X정찬마교새，실현료일쟁관주련속찬마5개화4개교새，실현료쾌첩、안전시공。
The staged fracturing technique of pumping type composite bridge plug is applied in Renmi 1H well of Huabei Oilifeld. After fracturing and blow-off, the sand jamming occurs to the bridge plug, thus the drilling bridge plug is required to increase the output. According to the analysis of characteristics of staged fracturing techniques for bridge plug, the dififculties in drilling the bridge plug are found and relevant schemes are formulated. According to the well condition, the techniques of coiled tubing with bottom screw drill and ordinary tubing with screw drill and home-made cyclone four-wing concave bottom mill shoe are applied for bridge plug drilling of Renmi 1H well and Taimi 1X well to consecutively drill ifve or four bridge plugs with one pipe string and to carry out construction quickly and safely.