Z3井侧钻找老井眼钻井技术

Sidetrack Drilling Technologies in Well Z3

摘要: Z3井是一口大斜度多目标定向井 ,该井在钻完井深 3 176m后起钻到 2 43 7m划眼时发生断钻具事故 ,在处理钻具事故时又将磨铣钻具扭断 ,造成下步施工无法继续进行 ,只有填井侧钻。介绍了Z3井侧钻找老眼的施工设计、井眼轨迹控制技术以及一些与之配套的措施。

Abstract: Well Z3 is a highly deviated multi-target directional well. An accident occurred during drilling operation and the well was sidetracked. This paper introduces the design of sidetracking operation, control of well trajectory and other relevant measures of sidetrack drilling in this well.