缅甸D区块高陡构造防斜打快技术

Deviation Control and Fast Drilling Technique in High Deep Structure of Block D in Myanmar

缅甸D区块是中国石化国际石油勘探开发有限公司作为作业者在缅甸拥有的第一个区块。该区块上部地层倾角大,造斜能力强,实钻过程中井身质量控制难度大,机械钻速较低,影响了施工进度和生产时效。针对该区块已钻井所遇到的问题,对地层自然造斜规律进行了分析,根据地层的可钻性提出了钻头优选方法,对防斜钻具组合依据建立的力学模型进行了分析和优选。通过在Yagyi-1井(简称Y-1井)的成功应用,上部高陡构造地层机械钻速得到了大幅度的提高(119%),对后续井的设计施工具有很好的借鉴作用。

Block D is the first operation block owned by SIPC in Myanmar.The difficulty to control well bore quality and low penetration rate due to high formation inclination angle and strong building force,affect the drilling progress and production efficiency.For the problems encountered during drilling,formation natural deviation law was analyzed;drill bit optimization method was proposed based on formation drillability;BHA anti-deviation mechanical model was analyzed and optimized.Through successful application in Well Yagyi-1,the ROP in the upper layer with high inclination angle was greatly improved（119%）.This provides a good reference for design and drilling of the follow-up wells.