冀东油田人工岛丛式井钻井防碰技术

发布时间：2018-04-09 01:05

本文选题：丛式井　切入点：钻井　出处：《石油钻探技术》2017年05期

【摘要】：冀东油田人工岛丛式井井网密度大,钻进中易发生井下碰撞问题,为解决该问题,研究了防碰技术。通过分析冀东油田人工岛丛式井的钻井技术难点,提出了针对性技术措施:正钻井碰撞高风险井段使用牙轮钻头;应用低刚性钻具组合,使井下钻具获得更大的挠度变形空间;进行随钻MWD磁场强度监测,根据磁场强度异常值判断正钻井与邻井套管的距离,预警碰撞风险,指导正钻井防碰。综合这些技术措施形成的冀东油田人工岛丛式井钻井防碰技术,在冀东3号人工岛丛式井组进行了应用,降低了钻进中发生井下碰撞的概率,表明该技术是防止正钻井与邻井套管碰撞的有效技术,可为冀东油田人工岛加密钻井提供安全保障。
[Abstract]:Due to the high density of artificial island clump well pattern in Jidong Oilfield, the problem of downhole collision is easy to occur in drilling. In order to solve this problem, the anti-collision technology is studied.Based on the analysis of the difficulties in drilling technology of artificial island cluster wells in Jidong Oilfield, the corresponding technical measures are put forward: the use of cone bit in high risk section of positive drilling and collision, the use of low rigidity drilling tool combination to obtain greater deflection deformation space of downhole drilling tools;The magnetic field intensity of MWD while drilling is monitored, the distance between positive drilling and adjacent casing is judged according to the abnormal value of magnetic field intensity, the collision risk is forewarned, and the collision prevention of positive drilling is guided.Combined with these technical measures, the drilling and collision prevention technology of artificial island cluster well in Jidong Oilfield has been applied in Jidong No. 3 artificial island cluster well group, which reduces the probability of downhole collision during drilling.It is shown that this technology is an effective technology to prevent the collision between normal drilling and adjacent casing, and it can provide safety guarantee for artificial island infill drilling in Jidong Oilfield.
【作者单位】：中国石油集团渤海钻探工程有限公司定向井技术服务分公司;中石化华东石油工程公司六普钻井公司;
【分类号】：TE24

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