Development status and prospects of coiled tubing technology in China

Liu Xuquan; Hu Qiangfa; Yu Xunxing; Ma Qing

doi:10.7623/syxb202609012

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Development status and prospects of coiled tubing technology in China

更新时间：2026-10-17

- Development status and prospects of coiled tubing technology in China
- ACTA PETROLEI SINICA Vol. 47, Issue 9, Pages: 1898-1908(2026)
- 作者机构：
  
  1. 中国石油集团工程技术研究院有限公司,北京,102206
  2. 油气钻完井技术国家工程研究中心,北京,102206
  3. 中石油江汉机械研究所有限公司,湖北,武汉,430024
- 作者简介：
- 基金信息：
- DOI：10.7623/syxb202609012
  CLC： TE929
- Online First：14 October 2026，
  
  Published：2026
- 稿件说明：
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刘绪全, 胡强法, 余训星, 马青. 中国连续管技术发展现状及展望[J]. 石油学报, 2026, 47(9): 1898-1908.

Liu Xuquan, Hu Qiangfa, Yu Xunxing, et al. Development status and prospects of coiled tubing technology in China[J]. ACTA PETROLEI SINICA, 2026, 47(9): 1898-1908.
刘绪全, 胡强法, 余训星, 马青. 中国连续管技术发展现状及展望[J]. 石油学报, 2026, 47(9): 1898-1908. DOI： 10.7623/syxb202609012.

Liu Xuquan, Hu Qiangfa, Yu Xunxing, et al. Development status and prospects of coiled tubing technology in China[J]. ACTA PETROLEI SINICA, 2026, 47(9): 1898-1908. DOI： 10.7623/syxb202609012.

摘要

为系统梳理中国连续管技术的发展现状、研判国内外差距、明确未来攻关方向，从装备、管材、工具工艺、软件和数字化全产业链视角，综述了连续管技术的研发与应用进展。中国连续管年作业量已突破10.000井次，形成覆盖修井、压裂、完井、测井、钻井五大领域的53种工艺体系，CT150钢级超高强度连续管、作业能力为Φ60.3.mm-8.000.m（直径为60.3.mm，长度为8.000.m）的超大容量装备、电驱自动化作业机等产品性能达到国际先进水平。但对比国际领先水平，仍存在差距，主要表现为万米超深井/3.000.m以上超长水平段作业能力不足，200.℃/105.MPa极端工况工具失效率高，连续管钻井技术成熟度低，有缆连续管智能作业占比不足国外的20%。针对上述问题，凝练了管柱非线性力学、极端工况材料失效、井下智能感知控制等关键技术难题，提出了持续突破极限作业能力、升级完善连续管钻井技术、加快数智化转型、推进新能源业务拓展及深化国际交流合作5项发展建议，以期为中国连续管技术从“并跑”向“领跑”跨越提供参考。

Abstract

To systematically review the current development status of coiled tubing (CT) technology in China

identify the technological gaps between domestic and international levels

and define future research priorities

this paper provides a comprehensive overview of the research and application progress of CT technology across the entire industrial chain

including equipment

strings

downhole tools and operational processes

as well as digital software systems. China’s CT intervention capacity has exceeded 10.000 well services annually

with 53 process technologies established across five major application fields

namely workover

fracturing

completion

logging

and drilling. The core technologies

such as CT150 ultra-high-strength coiled tubing

Φ60.3.mm-8.000.m ultra-large-capacity equipment

and electrically driven automated coiled tubing units

have attained globally recognized performance benchmarks. However

China’s CT technology still lags behind international benchmarks in several key aspects

including insufficient operational capabilities for ultra-deep wells exceeding 10.000.m and ultra-long horizontal sections longer than 3.000.m

high failure rates of downhole tools under extreme conditions of 200.℃ and 105.MPa

relatively low maturity of coiled tubing drilling technology

and adoption rate of intelligent wired coiled tubing less than 20% of the global benchmark. In response to these challenges

this study identifies the critical technical bottlenecks

encompassing nonlinear mechanics of CT strings

material failure mechanisms under extreme operating conditions

and intelligent downhole sensing and control technologies. Five strategic recommendations are proposed:continuously enhancing extreme operation capabilities

improving and advancing CT drilling technologies

accelerating digital and intelligent transformation

expanding applications in new energy sectors

and strengthening international exchanges and cooperation. These recommendations provide valuable guidance for propelling China’s CT technology from parallel development to global leadership.

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