杜84-兴H73井多井防碰绕障技术与施工

Multi-well anticollision and avoidance of obstacle in Well Du84-XingH73 drilling operation

曙1区杜84-兴H73水平井由于受邻井的限制,施工难度很大,为此利用MWD随钻监测井眼轨迹,施工中通过变换钻具组合、调整钻进方式、改变钻进参数及防碰绕障等技术和方法准确有效地控制井眼轨迹,达到钻井目的。该井钻进过程中及完钻后各项指标均达到了设计要求,对相关现场施工具有一定的借鉴性。

Drilling operation of horizontal well Du84-XingH73 in Shi1 Block was highly difficult due to the restraint of adjacent wells. MWD had been used to monitor hole trajectory. The trajectory had been effectively controlled through changing drill assembly, adjusting drilling method, altering drilling parameters. In this well, all the indices of drilling and completion have met the design requirement. This is a reference to related field operation.