Xinjiang Oil & Gas ›› 2024, Vol. 20 ›› Issue (4): 19-24.DOI: 10.12388/j.issn.1673-2677.2024.04.003

• OIL AND GAS DEVELOPMENT • Previous Articles     Next Articles

Analysis of BHA Build-Up Performance for Jimsar Shale Oil Horizontal Wells

  

  1. 1.Karamay Campus,China University of Petroleum (Beijing),Karamay 834000,Xinjiang,China;2.Production Technology Research Institute,PetroChina Xinjiang Oilfield Company,Karamay 834000,Xinjiang,China
  • Online:2024-12-05 Published:2024-12-05

吉木萨尔页岩油水平井下部钻具造斜性能分析

  

  1. 1.中国石油大学(北京)克拉玛依校区,新疆克拉玛依 834000; 2. 中国石油新疆油田分公司采油工艺研究院,新疆克拉玛依 834000
  • 作者简介:赵岩龙(1988-),2018年毕业于中国石油大学(北京)油气井工程专业,博士,副教授,目前从事非常规油气开发、油气井流体力学与工程研究。(Tel)18010092639(E-mail)zhaoyanlong@cupk.edu.cn
  • 基金资助:

    国家自然科学基金青年科学基金项目“深度学习辅助页岩油储层两相流动尺度升级和模拟研究”(52004301);中国科学院“西部青年学者” (2021-XBQNXZ-033)

Abstract:

Well trajectory control is a key task in drilling horizontal wells. The purpose of this study is to determine the influences of BHA (bottomhole assembly) parameters on build-up capacity of horizontal wells in Jimsar shale oil. The build-up efficiencies of conventional and rotary steering tools of nine horizontal wells in this block are compared and analyzed. The mechanical properties of different BHAs and the influence laws of different factors on the build-up capacity of drill assembly are investigated via the beam column approach,and suggestions are given for PDM (positive displacement motor) drill parameters. Research shows that from high to low,the build-up capacity in the case of the drill assembly parameters in this block ranks as listed:single bend PDM drill assembly with single stabilizer (sliding drilling),rotary steering tools,single bend PDM drill assembly with double stabilizer (sliding drilling),and finally single bend PDM drill assembly with double stabilizer (compound drilling). For PDM drill,the following measures can be taken to increase the build-up capacity:increasing bend angle,spacing of stabilizers and first stabilizer size;decreasing the second stabilizer size. The findings of this research provide guidance for the selection of build-up tools for Jimsar shale oil horizontal wells.

Key words:

well trajectory control, PDM drill, rotary steering, side force, bend angle, Jimsar shal oil

摘要:

井眼轨迹控制是水平井钻探的关键环节,为明确吉木萨尔页岩油水平井下部钻具组合参数对造斜能力的影响,对比分析了该区块9口水平井钻井过程中常规导向和旋转导向工具的造斜效率,基于纵横弯曲梁法分析了不同下部钻具组合的力学特性,以及不同因素对钻具组合造斜能力的影响规律,给出了下部螺杆钻具组合参数建议。研究表明,在该区块钻具组合参数条件下,造斜能力排序为:单弯单稳螺杆-滑动钻进、旋转导向、单弯双稳螺杆-滑动钻进、单弯双稳螺杆-复合钻进;对于螺杆钻具,增大弯角、增加稳定器间距、增加第一稳定器尺寸、减小第二稳定器尺寸均有助于提高其造斜能力。研究结果对吉木萨尔页岩油水平井造斜工具的优选具有一定指导意义。

关键词:

井眼轨迹控制, 螺杆钻具, 旋转导向, 侧向力, 弯角, 吉木萨尔页岩油

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