根据安塞油田老井剩余油分布情况,在长停(关)井实施开窗侧钻,解决定向井井眼轨迹控制、斜井定位开窗难度大、固井完井要求高等难题.%Based on the residual oil distribution in abandoned(closed) well of Ansai Oilfield,this paper focuses on the research of sidetracking in the abandoned well to solve the problems including trajectory control of directional well,locating and opening the inclined well and well cementation.
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