海洋工程装备与技术

海洋工程装备与技术 ›› 2025, Vol. 12 ›› Issue (1): 28-36.doi: 10.12087/oeet.2095-7297.2025.01.04

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基于南海某气田海底管道的变径清管器模拟测试

曹聚杭，张捷，张婕，邓驰誉，高磊，李健，陈娟，龙小品，于远方，蒋兵兵   

  1. 中海油深圳海洋工程技术服务有限公司，广东 深圳 518054
  • 出版日期:2025-03-05 发布日期:2025-06-05
  • 作者简介:曹聚杭（1991— ），男，硕士，工程师，主要从事深水油气设施调试、安装技术研究。

Simulation Test of Multi-Diameter Pig Based on a Subsea Pipeline in a Gas Field in the South China Sea

CAO Juhang， ZHANG Jie， ZHANG Jie， DENG Chiyu， GAO Lei， LI Jian， CHEN Juan， LONG Xiaopin， YU Yuanfang， JIANG Bingbing   

  1. CNOOC Offshore Engineering Solution Co.， Ltd.， Shenzhen 518054， Guangdong， China
  • Online:2025-03-05 Published:2025-06-05

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摘要： 基于南海某气田变径海底管道注气排水清管工程背景，设计适用于变径率59%的海管变径清管器，对其通过性能、耐磨性能和排水性能进行研究分析。设计测试管路模拟实际的变径海底管道系统，基于测试管路采用洁净水作为驱动介质，验证了变径清管器在变径率59%的管路内的通过性能。变径清管器在20.32cm管路中密封板呈现均匀褶皱形态，其运行压力最大为4×105Pa（表压），满足实际使用需求。采用压缩空气作为驱动介质，研究了变径清管器的排水性能。变径清管器由20.32cm管路运行至30.48cm管路时的运行压力较变径清管器由30.48cm管路运行至20.32cm管路时运行压力大，但前者的排水效果要优于后者。模拟测试的变径清管器将应用于南海某气田变径海底管道排水实践。

关键词: 海底管道, 变径清管器, 排水, 模拟测试, 变径率

Abstract: Based on the background of a reducing subsea pipeline in a gas field located in the South China Sea， a multi-diameter pig with a reducing rate of 59% is designed， and its passing performance， wear resistance and dewatering performance are analyzed. A test pipeline is designed to simulate the actual reducing subsea pipeline system. Based on the test pipeline， using fresh water as the driving medium， the passing performance of the multi-diameter pig in the pipeline with a reducing rate of 59% is verified. The multi-diameter pig has a uniform fold shape on the sealing plate in the 20.32cm pipeline， and its operating pressure is up to 4×105Pa （gauge pressure）， which meets the actual use requirements. Using compressed air as the driving medium， the dewatering performance of the multi-diameter pig is studied. The operating pressure of the multi-diameter pig running from an 20.32cm pipeline to a 30.48cm pipeline is higher than that of the pig running from a 30.48cm pipeline to an 20.32cm pipeline， but the dewatering performance in the former case is better than that in the latter case. The multi-diameter pig after simulation test will be applied to the dewatering of a subsea reducing pipeline in a gas field in the South China Sea.

Key words: subsea pipeline, multi-diameter pig, dewatering, simulation test, reducing rate

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