Research Status of Composite Coiled Tubing and Operation Equipment

doi:10.12388/j.issn.1673-2677.2025.04.002

Abstract

Abstract:

The existing formation testing and fluid drainage operation methods are found with problems such as the long operation duration，complex operations，and likely damage to equipment，which seriously restrict the improvement of oil and gas field development efficiency and the reduction of development costs. Given these，this paper conducts a summary and analysis of the current state of technology regarding non-metallic composite coiled tubing materials and their associated running and pulling equipment used in the oil and gas field development sector. The technical parameters and field operation cases of different types of tubing and equipment are listed. Comparative analysis shows that in terms of tubing materials，the non-metallic composite coiled tubing available in China still cannot meet the operation requirements for wells with depths over 2 000 m，due to factors such as material strength and temperature resistance. It is necessary to further optimize material performance and develop and apply composite coiled tubing materials with higher strength and temperature resistance；in terms of equipment selection，skid-mounted operation equipment，combined tubing operation equipment，composite coiled tubing operation vehicles，etc.，can all meet the basic needs of current on-site operations of non-metallic composite coiled tubing in China. Comprehensive comparison of various operating equipment in terms of equipment costs，technical parameters，and operation efficiency suggests the combined use of non-metallic composite coiled tubing and conventional lightweight workover rigs is the most suitable application configuration for the current formation testing and fluid drainage operation using non-metallic composite coiled tubing.

Key words:

non-metallic composite material, coiled tubing material, downhole services equipment, composite coiled tubing and lightweight workover rig, formation testing and fluid drainage operation

摘要：

现有的试油排液作业方式存在作业周期长、操作复杂、设备易损等问题，严重制约了油气田开发效率的提升和开发成本的降低。针对这些问题，本文开展了油气田开发领域现用的非金属复合材料连续管管材及配套起下井作业设备的技术现状总结分析，列举了不同类型的管材、设备的技术参数及现场作业案例。通过对比分析，管材方面，受材料强度和耐温性等因素的影响，国内现有的非金属复合材料连续管尚不能满足2 000 m以上井深下施工需求，应进一步优化材料性能，研究应用强度更高、耐温性更好的复合材料连续管管材；在设备选型方面，橇装式作业设备、组合油管作业设备和复合管作业车等均能够满足我国当前非金属复合材料连续管现场作业的基本需求，通过对各类作业设备在设备成本、技术参数和施工效率等方面的综合比较，将非金属复合材料连续管与常规轻型修井机进行组合使用，是目前该技术试油排液作业最为适宜的应用方案。

关键词:

非金属复合材料, 连续管管材, 井下作业设备, 复合材料连续管及轻型修井机, 试油排液作业

CLC Number:

TE933

REN Yongqiang, LIU Yuwei, ZHENG Guangning, CHEN Xiaohu, ZHU Qiliang, ZHANG Wei.

Research Status of Composite Coiled Tubing and Operation Equipment

[J]. Xinjiang Oil & Gas, 2025, 21(4): 9-16.

任勇强, 刘雨薇, 郑广宁, 陈小虎, 朱其亮, 张伟.

复合材料连续管管材及装备研究现状分析

[J]. 新疆石油天然气, 2025, 21(4): 9-16.

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