万米深井SDCK1井超大尺寸井眼钻井技术

蔡明杰, 罗鑫, 陈力力, 贺明敏, 彭浩, 何兵

蔡明杰,罗鑫,陈力力,等. 万米深井SDCK1井超大尺寸井眼钻井技术[J]. 石油钻探技术,2024, 52(2):87-92. DOI: 10.11911/syztjs.2024030
引用本文: 蔡明杰,罗鑫,陈力力,等. 万米深井SDCK1井超大尺寸井眼钻井技术[J]. 石油钻探技术,2024, 52(2):87-92. DOI: 10.11911/syztjs.2024030
CAI Mingjie, LUO Xin, CHEN Lili, et al. Ultra-Large borehole drilling technologies of ten-thousand-meter deep well SDCK1 [J]. Petroleum Drilling Techniques,2024, 52(2):87-92. DOI: 10.11911/syztjs.2024030
Citation: CAI Mingjie, LUO Xin, CHEN Lili, et al. Ultra-Large borehole drilling technologies of ten-thousand-meter deep well SDCK1 [J]. Petroleum Drilling Techniques,2024, 52(2):87-92. DOI: 10.11911/syztjs.2024030

万米深井SDCK1井超大尺寸井眼钻井技术

基金项目: 中国石油集团关键核心技术攻关项目“万米超深层油气资源钻完井关键技术与装备研究”(编号:2022ZG0)和中国石油集团川庆钻探工程有限公司科技项目“万米特深井大井眼钻柱安全分析与优化技术研究”(编号:CQ2023B-57-1-3)部分研究内容。
详细信息
    作者简介:

    蔡明杰(1994—),男,四川荣县人,2017年毕业于西南石油大学石油与天然气工程专业,2022年获西南石油大学石油与天然气工程专业博士学位,工程师,主要从事钻井技术研究工作。E-mail:caimj1994@qq.com

  • 中图分类号: TE245

Ultra-Large Borehole Drilling Technologies of 10 000-Meter Deep Well SDCK1

  • 摘要:

    万米深井SDCK1井上部超大尺寸井眼段钻进过程中,面临着钻具安全风险高、井眼清洁效率低、井身质量控制难、PDC钻头磨损快、超大尺寸超重套管下入难等技术难点。为解决这些技术难点,开展了钻具安全保障技术、超大尺寸井眼井筒清洁工艺优化、耐大排量冲蚀测斜工具研制、“个性化PDC钻头+大扭矩中空螺杆”优选及超大尺寸超重套管下入技术措施优化等关键技术研究,形成了万米深井超大尺寸井眼安全高效钻井技术。SDCK1井ϕ812.8 mm和ϕ593.7 mm超大尺寸井眼钻进过程中应用了该技术,确保了钻具安全、井眼清洁和井身质量控制(井斜角不超过1°),同时提高了单只进尺和机械钻速,使超大尺寸超重套管顺利下至设计位置。SDCK1井超大尺寸井眼段的顺利完钻,为四川地区超大尺寸井眼段的安全高效钻进提供了技术借鉴。

    Abstract:

    In the drilling process of the upper ultra-large borehole of 10 000-meter deep well SDCK1, there are five major technical challenges such as high safety risk of drilling tool, low cleaning efficiency of borehole, difficult quality control of wellbore, fast wear of polycrystalline diamond compact (PDC) bit, and hard ultra-large casing running. To address these challenges, the research on drilling tool safety guarantee technology, optimization of ultra-large borehole cleaning, development of High flow rate and erosion-resistance inclinometer, selection of “personalized PDC bit + high-torque hollow screw”, and optimization of ultra-large and overweight casing running was carried out, and the safe and efficient key drilling technologies of the ultra-large borehole of 10 000-meter deep well were formed. The technologies were applied in the ultra-large borehole of ϕ812.8 mm and ϕ593.7 mm of Well SDCK1 during drilling, which effectively ensured the safety of the drilling tool, borehole cleaning, and quality control of the wellbore (deviation angle is no more than 1°). In addition, single footage and rate of penetration (ROP) were effectively raised, and the ultra-large and overweight casing running to the designed position was smooth. The successful completion of the ultra-large borehole of Well SDCK1 provides a successful experience for the safe and efficient drilling of ultra-large boreholes in the Sichuan area.

  • 图  1   实测井下纵向振动

    Figure  1.   Measured downhole longitudinal vibration

    图  2   SDCK1井分段重稠浆举屑携带出的井下掉块

    Figure  2.   Downhole rockfalls carried out by heavy viscous slurry in Well SDCK1

    图  3   耐大排量冲蚀测斜工具

    Figure  3.   High flow rate and erosion-resistance inclinometer

    图  4   载荷作用下套管应力分析结果

    Figure  4.   Analysis result of casing stress under load

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出版历程
  • 收稿日期:  2023-12-26
  • 修回日期:  2024-02-26
  • 网络出版日期:  2024-04-25
  • 刊出日期:  2024-04-02

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