西南石油大学学报(自然科学版) ›› 2026, Vol. 48 ›› Issue (4): 181-187.DOI: 10.11885/j.issn.1674-5086.2026.05.11.01

• 油藏型储气库建库技术专刊 • 上一篇    下一篇

储气库海管陆对海定向钻回拖关键技术研究

郝大勇1, 张凌轩2, 张涛3, 毛庆喆3, 张国兴3, 范家僖1   

  1. 1. 中国石油冀东油田分公司, 河北 唐山 063004;
    2. 中国石油工程建设有限公司西南分公司, 四川 成都 610000;
    3. 中国石油集团海洋工程有限公司, 山东 青岛 266520
  • 收稿日期:2026-05-11 出版日期:2026-07-17 发布日期:2026-07-17
  • 通讯作者: 郝大勇,E-mail:haodayong2007@petrochina.com.cn

Research on Key Technologies for Pullback in Land-to-sea Directional Drilling of Submarine Pipelines for Gas Storage

HAO Dayong1, ZHANG Lingxuan2, ZHANG Tao3, MAO Qingzhe3, ZHANG Guoxing3, FAN Jiaxi1   

  1. 1. PetroChina Jidong Oilfield Company, Tangshan, Hebei 063004, China;
    2. Southwest Branch, China Petroleum Engineering & Construction Corporation, Chengdu, Sichuan 610000, China;
    3. CNPC Offshore Engineering Co. Ltd., Qingdao, Shandong 266520, China
  • Received:2026-05-11 Online:2026-07-17 Published:2026-07-17
  • About author:郝大勇,1982年生,男,汉族,黑龙江哈尔滨人,高级工程师,主要从事油气田及储气库地面工程建设技术管理工作。E-mail:haodayong2007@petrochina.com.cn
    张凌轩,1993年生,女,汉族,河北唐山人,工程师,硕士,主要从事天然气深冷技术研发及工程应用工作。E-mail:zhanglx_sw@cnpc.com.cn
    张涛,1991年生,男,汉族,山东枣庄人,工程师,主要从事海洋工程技术管理工作。E-mail:zhangtao1.cpoe@cnpc.com.cn
    毛庆喆,1986年生,男,汉族,黑龙江大庆人,高级工程师,主要从事海洋工程技术管理工作。E-mail:maoqz.cpoe@cnpc.com.cn
    张国兴,1986年生,男,汉族,河北霸州人,高级工程师,主要从事海底管道安装技术工作。E-mail:zhanggx.cpoe@cnpc.com.cn
    范家僖,1985年生,男,汉族,河北唐山人,高级工程师,主要从事油气田地面建设和油气储运技术工作。E-mail:fanjiaxi@petrochina.com.cn

摘要: 针对滩浅海海上储气库注采集输海底管线登陆存在水深受限、立管安全性差的工程难题,开展了陆对海定向钻管道回拖关键控制技术研究。研究依据管道预制与牵引设备布置方式划分为3种回拖作业模式,结合现场条件优选施工方案,创新构建4段式回拖管道总长度计算模型,明确各分段长度计算依据;基于GB/T 50423与NEN 3650标准,综合考虑陆上、钻孔与海床多维度阻力,推导出3段式回拖力计算公式。结果表明,陆侧整体预制+海上锚系驳船钻机牵引为最优作业方案,结合工程参数验算,取3.0安全系数得到最大设计回拖力为4 160.92 kN,可配套500 t级海上钻机;通过对比固定式平台、自升式平台和锚系驳船3类海上作业平台适用性,确定8锚定位驳船为最佳作业载体,同时基于悬链线方程建立锚缆触泥点计算方法,形成完善的海底已建设施避让防护措施。研究形成的整套关键技术,可为滩浅海地区储气库海底管线定向钻登陆同类工程提供施工参考。

关键词: 陆对海定向钻, 管道回拖, 海上储气库, 回拖力计算, 锚系驳船, 海底管线

Abstract: To address the constraints of limited water depth and poor riser safety during the landfall of subsea pipelines for injection, production and transmission of offshore gas storage reservoirs in shallow coastal waters, key control technologies for pipeline pullback in land-to-sea directional drilling are investigated. Three pullback operation modes are classified according to the layout of pipeline prefabrication and traction equipment, and the optimal construction scheme is selected based on site conditions. A novel four-section model for calculating the total length of pullback pipelines is established, with calculation criteria defined for each section. Referencing GB/T 50423 and NEN 3650 standards, a three-stage formula for pullback force is derived by taking full account of resistances on land, inside boreholes and on seabed. The combined prefabrication on land and traction via drilling rig on anchored barge is verified as the optimal solution. Calculations with a safety factor of 3.0 yield a maximum design pullback force of 4 160.92 kN, matching a 500 t offshore drilling rig. Comparison of the applicability of fixed platforms, jack-up platforms and anchored barges confirms the 8-point mooring barge as the preferred operating platform. A calculation method for anchor cable touch-down points is developed based on the catenary equation, alongside comprehensive protection measures for existing subsea facilities. The proposed technologies provide technical support for similar landfall projects of subsea pipelines for offshore gas storage reservoirs via directional drilling in shallow coastal waters.

Key words: land-to-sea directional drilling, pipeline pullback, offshore gas storage, pullback force calculation, moored barge, submarine pipeline

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