塔里木油田HLHT区块超深井钻井提速配套技术

发布时间：2018-07-09 19:59

本文选题：碳酸盐岩油气藏 + 超深井钻井　；参考：《石油钻探技术》2017年02期

【摘要】：塔里木油田HLHT区块储层埋藏深、上部地层松软和下部地层岩石可钻性差,导致出现机械钻速低、钻井周期长等问题,在将井身结构优化为塔标Ⅲ三开井身结构的基础上,把提速重点聚集于二开井段,通过分析地层的可钻性,优选钻头及配套提速工具,并结合钻井实践经验,制定了二开钻井提速技术方案:二叠系以上地层,采用长寿命大扭矩螺杆/国产高效螺杆+STS915K型或MS1952SS型高效PDC钻头复合钻井提速技术;二叠系及其以下地层,采用Torkbuster扭力冲击器+U513M型或U613M型专用PDC钻头钻井提速技术。现场应用表明,HLHT区块超深井应用钻井提速配套技术后,平均机械钻速逐年提高,从5.55m/h逐渐提高至8.82m/h,平均钻井周期逐年缩短,从131.0d逐渐缩短至86.1d。这表明,HLHT区块超深井钻井提速配套技术提速效果显著,能够满足该区块超深井快速高效安全钻井的需要。
[Abstract]:The reservoir of HLHT block in Tarim Oilfield is buried deep, the upper stratum is soft and the lower strata are drillability, which leads to low mechanical drilling speed and long drilling cycle. On the basis of optimizing the well structure to the structure of the tower grade III three opening body, the speed of lifting is concentrated in the two opening section, and the drill can be analyzed by analyzing the drillability and optimizing the bit and matching. The speed lifting tool is set up and combined with the practice experience of drilling, the two drilling speed lifting technical scheme is formulated: the strata above the Permian system, using the long life long torque screw / domestic high efficient screw +STS915K or MS1952SS type high efficient PDC bit compound drilling speed raising technology, the Permian and its below ground layer, using the Torkbuster torsion shock device +U513M type or U613M type The field application of special PDC bit drilling shows that the average mechanical drilling speed increases year by year, from 5.55m/h to 8.82m/h, the average drilling cycle is shortened year by year and the 131.0d is gradually shortened to 86.1d. after the application of the drilling speed matching technology in the ultra deep well of the HLHT block, which shows that the speed increase effect of the ultra deep well drilling rate matching technology of the HLHT block is obvious. It can meet the needs of fast and efficient drilling for ultra deep wells in this block.
【作者单位】：中国石油塔里木油田分公司;西南石油大学石油与天然气工程学院;
【分类号】：TE245

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