油气藏评价与开发 ›› 2024, Vol. 14 ›› Issue (4): 593-599.doi: 10.13809/j.cnki.cn32-1825/te.2024.04.009

• 矿场应用 • 上一篇    下一篇

超深定向井地质工程力学耦合机理研究进展与认识

成海1(),张逸群2,王印3,刘超3   

  1. 1.中国石化石油工程技术服务股份有限公司,北京 100020
    2.中国石油大学(北京),北京 102249
    3.中国石化经纬有限公司,山东 青岛 266000
  • 收稿日期:2023-11-20 出版日期:2024-08-26 发布日期:2024-09-10
  • 作者简介:成海(1971—),男,硕士,高级工程师,从事钻井工程技术研究与管理工作。地址:北京市朝阳区吉市口路9号,邮政编码:100020。E-mail:chengh.os@sinopec.com
  • 基金资助:
    山东省博士后创新人才支持计划“地壳置换作用(Relamination)及其成因机制探讨:以Song Ma造山带为例”(SDBX2023080)

Progress and understanding on geology-drilling engineering-mechanics coupling mechanism of ultra-deep directional wells

CHENG Hai1(),ZHANG Yiqun2,WANG Yin3,LIU Chao3   

  1. 1. Sinopec Oilfield Service Corporation, Beijing 100020, China
    2. China University of Petroleum(Beijing), Beijing 102249, China
    3. Sinopec Matrix Corporation, Qingdao, Shandong 266000, China
  • Received:2023-11-20 Online:2024-08-26 Published:2024-09-10

摘要:

超深定向井是开发深层、超深层油气的重要手段,但深部地层在地形地貌、地层岩性、压力系统、储层流体和工程力学特征等方面存在的复杂性,使超深定向井钻完井工程面临着巨大的挑战。因此,开展超深定向井地质工程力学耦合机理研究对于高效开发深层、超深层油气具有重要意义。从超深复杂构造条件下的三维地质建模、地层岩石力学和地应力的评估、超深复杂岩性多成因地层压力预测以及超深定向井地层-钻头-钻柱耦合力学计算4个方面对超深定向井地质工程力学耦合机理研究进行了梳理总结,分析认为:由于深层地质力学具有抽象性和较强的各向异性,导致了目前地质力学成果很难实际应用在超深定向井钻井中。对此,需要深入开展微观-介观-宏观多尺度耦合研究,充分利用人工智能及大数据进行三维地质建模;通过岩石力学和大数据等手段,创新融合理论与新技术,综合实验测试与现场数据,建立地应力预测的新方法;深入开展随钻测量技术研究,建立地层孔隙压力预测及监测数据平台;基于地质资料及人工智能平台,优选钻井参数、钻具组合,建立超深定向井钻柱-钻头-岩石系统动力学模型,为中国安全高效开展深层、超深层定向井钻井提供理论支撑与技术指导。

关键词: 地质工程力学耦合机理, 超深定向井, 三维地质建模, 地应力, 地层-钻头-钻柱力学耦合

Abstract:

Deep and ultra-deep oil and gas exploration and development are key strategic areas in China's energy sector, with ultra-deep directional drilling serving as a crucial technology for accessing these resources. However, the challenges of drilling and completing ultra-depe directional wells are substantial due to complex topography, diverse formation lithologies, varying pressure systems, reservoir fluid characteristics, and the engineering mechanics of deep formations. To address these challenges and enhance the safe and efficient development of deep oil and gas resources in China, this paper introduces the concept of a geology-drilling engineering-mechanics coupling mechanism for ultra-deep directional wells. The paper systematically reviews the progress and identifies existing problems in the geology-drilling engineering-mechanics coupling mechanism of ultra-deep oil and gas drilling. It also proposes directions for future research and development. It is emphasized that research on the coupling mechanism in China is still in its early stages and requires further integration of geology, mechanics, and engineering disciplines to develop efficient drilling technologies suitable for ultra-deep directional wells.

Key words: geology-drilling engieering-mechanics coupling mechanism, ultra-deep directional well, 3D geological modeling, geostress, rock-bit-drill string mechanical coupling

中图分类号: 

  • TE19