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海底管道内穿插修复用国产RTP管性能测试与适用性分析
Performance testing and applicability analysis of homegrown RTP pipes for subsea pipeline insertion and repair
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- DOI:
- 10.3969/j.issn.1001-2206.2026.01.002
- 作者:
- 刘克明, 杜晓杰, 王建, 王海锋, 吴海波
LIU Keming, DU Xiaojie, WANG Jian, WANG Haifeng, WU Haibo
- 作者单位:
- 1. 中海石油(中国)有限公司深圳分公司, 广东深圳 518054;2. 中海油(天津)管道工程技术有限公司, 天津 300452;3. 航天晨光股份有限公司, 江苏南京 211000
1. Shenzhen Branch Company of CNOOC, Shenzhen 518054, China;2. CNOOC (Tianjin) Pipeline Engineering Technology Co., Ltd., Tianjin 300452, China;3. Aerosun Corporation, Nanjing 211000, China
- 关键词:
- 海底管道; 内穿插修复; RTP管; 性能试验; 工程应用
subsea pipeline;internal insertion and repair;RTP pipe;performance testing;engineering application
- 摘要:
增强热塑性塑料复合管（Reinforced Thermoplastic Composite Pipe，RTP）内穿插是一种低成本的管道原位修复方式，目前针对国产RTP管在海底管道内穿插修复施工和服役工况下的可靠性和适用性缺乏系统评估。以南海某长距离、多弯头海底管道RTP管内穿插修复工程应用实践为基础，测试与评估国产四层结构DN100抗拉型RTP管力学性能的可靠性和工程适用性。研究结果表明，国产RTP管的拉断失效载荷可达到318.5 kN，失效形式为抗拉层芳纶纤维断裂，短期爆破压力最低可达到41.75 MPa，抗外压压溃压力最低可达2.1 MPa，远高于管道修复时RTP管设计值和施工过程所需最大拖拉力，且变形弹性恢复能力强、尺寸稳定性好，其力学性能满足海底管道RTP管内穿插修复工程应用要求。研究成果可为国产RTP管在海洋工程中的进一步推广应用提供有力的数据支撑。
Reinforced thermoplastic composite pipe (RTP) internal insertion is a low-cost in-situ pipeline repair method. However, there is no systematic evaluation for the reliability and applicability of domestic RTP pipes in subsea pipeline under insertion and repair construction and service conditions. Based on the practical application of a long-distance, multi-bend subsea pipeline RTP insertion and repair project in the South China Sea, the reliability and engineering applicability of the mechanical properties of a homegrown fourlayer DN100 tension-reinforced RTP pipe were tested and evaluated. The research results show that the tensile failure load of the homegrown RTP pipe reaches 318.5 kN, with the failure mode being the fracture of the aramid fiber in the tensile layer. The minimum short-term burst pressure reaches 41.75 MPa, and the minimum external pressure collapse resistance is 2.1 MPa, far exceeding the design value of the RTP pipe during pipeline repair and the maximum dragging force required during construction. Additionally, the pipe exhibits strong elastic recovery capability and good dimensional stability. Its mechanical properties meet the requirements for RTP internal insertion and repair in subsea pipeline engineering. The research findings provide a strong data support for the further promotion and application of homegrown RTP pipes in marine engineering.