青西油田深井定向钻井技术

丁红; 王建毅; 李俊胜; 聂涛; 张冬冬; 陈刚

doi:10.11911/syztjs.201506007

青西油田深井定向钻井技术

中国石油西部钻探工程有限公司定向井技术服务公司, 新疆乌鲁木齐 830026

基金项目:

中国石油科技攻关项目专项课题"逆掩推覆带优快钻完井技术研究"之专题"逆掩推覆带复杂地层水平井钻完井技术研究与应用"(编号:2012E-3308)部分研究成果。

详细信息

作者简介:
丁红(1971—),女,新疆石河子人,1997年毕业于西南石油学院油气田应用化学专业,2008年获长江大学石油与天然气工程专业工程硕士学位,高级工程师,主要从事钻井工艺及技术方面的研究工作。

中图分类号: TE243
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出版历程
- 收稿日期: 2015-02-09
- 修回日期: 2015-08-11
- 刊出日期: 1899-12-31

Technology of Drilling Deep Directional Wells in Qingxi Oilfield

Directional Drilling Company of CNPC Xibu Drilling Engineering Company Limited, Urumqi, Xinjiang, 830026, China

摘要

摘要: 针对青西油田深井定向钻井过程中存在的直井段易井斜、定向造斜段钻速低、井眼轨迹控制难度大等问题,开展了复杂深井井眼轨迹控制与提速技术研究。通过分析区域地质特征、钻井难点等,主要从斜井段井眼轨迹控制与钻井提速等方面进行技术研究并制订了技术方案:在定向稳斜段采用扭力冲击器进行了提速试验,优选中低转速大功率螺杆配合抗冲击、抗研磨性强的螺旋5刀翼PDC钻头和高精度MWD无线随钻测量仪器进行井眼轨迹控制与提速。该技术在现场应用4口井,在满足井眼轨迹控制要求的情况下,斜井段平均机械钻速比采用常规技术提高了74.65%;斜井段最短定向工期达到59.00 d,平均定向工期89.79 d,比采用常规技术缩短了45.88%。研究表明,高效PDC钻头、中低速大扭矩螺杆钻具、MWD测量系统及扭力冲击器的配套技术,在青西油田深井定向钻井井眼轨迹控制与提速方面效果良好,值得在该地区推广应用。
- 深井 /
- 定向钻井 /
- 井眼轨迹 /
- 机械钻速 /
- 青西油田
Abstract: Drilling deep directional wells in the Qingxi Oilfield have met a series of difficulties, such as well bore quality controlat vertical sections, low rate of penetration (ROP) at build section and well trajectory control, etc. In order to solve these problems, trajectory control and drilling rate improvement in deep complex section were studied. Through the analysis of regional geologic characteristics and drilling difficulties technical research and design were conducted to achieve trajectory control at inclined section and drilling rate improvement.An ROP improvement test was conducted with a torque impacter at the hold section, and the trajectory control and ROP test were adopted for mid-low speed and high-power PDM tools, combined withhigh impact and abrasion resistant five-blade PDC bits as well as high-accuracy MWD. This technique was applied in 4 directional wells and an average ROP at deviation sections increased by 74.65%. The results indicated that it met the requirement of trajectory control,while the shortest directional drilling duration was 59.00 days,directional drilling average time was 89.79 d. At the end, there was a reduction of 45.88% in the drilling time versus conventional ways. It was demonstrated that the combined technology of high-efficiency PDC bits, low-speed high-torque PDM tools, MWD and torque impacters had a better result in trajectory control and ROP improvement in deep directional drilling in Qingxi Oilfield. Based on the positive results, it is recommended that the new techniques be promoted and applied in this area.
- deep well /
- directional drilling /
- wellbore trajectory /
- rate of penetration (ROP) /
- Qingxi Oilfield

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参考文献(10)

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青西油田深井定向钻井技术

作者简介: 丁红(1971—),女,新疆石河子人,1997年毕业于西南石油学院油气田应用化学专业,2008年获长江大学石油与天然气工程专业工程硕士学位,高级工程师,主要从事钻井工艺及技术方面的研究工作。

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出版历程

Technology of Drilling Deep Directional Wells in Qingxi Oilfield

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出版历程

目录

作者简介:
丁红(1971—),女,新疆石河子人,1997年毕业于西南石油学院油气田应用化学专业,2008年获长江大学石油与天然气工程专业工程硕士学位,高级工程师,主要从事钻井工艺及技术方面的研究工作。