| 摘要: |
| 采用传统清管器进行天然气凝析液管道的清管作业时存在着液塞量大、清管速度控制难度大等问题,射流清管技术因其可以有效减少清管段塞,实现缓蚀剂等的布设,成为近年来研究的热点。在文献调研的基础上,采用多相流动态模拟软件OLGA建立海底管道清管模型,进行了管道参数、工况参数以及海底环境参数等射流清管过程模拟分析,通过清管速度、压力、液塞流量变化等因素对比分析了射流清管器与传统清管器的清管效果,得到了射流清管效果随旁通率的变化关系,为实际应用提供了指导。 |
| 关键词: 射流清管器 旁通率 速度 压力 液塞流量 |
| DOI：10.3969/j.issn.1007-3426.2013.06.010 |
| 分类号: |
| 基金项目: |
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| Application analysis of by pass pigging for gas-condensed pipeline |
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Zhu Haishan, Luo Xiaoming, Yao Haiyuan, He Limin,Li Qingping
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(Oil Research Institute China National Offshore Oil Company, Beijing 100027, China)
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| Abstract: |
| There are some problems such as a large amount of liquid slug existing and the difficulty of pig's speed control when the pipeline pigging operations are conducted by traditional pig. Recently, by pass pigging is becoming the key innovation technology because it can effectively reduce liquid slug and realize redistribution of the chemicals such as corrosion inhibitors. In this paper, on the basis of the by pass analyses technology, the gas-condensed submarine pipeline pigging model is set up by using the multiphase flow dynamic simulation software OLGA, and the effects of the pipeline parameters, operating conditions, and the seabed environment to the by pass pigging are simulated. On this base, the comparisons between the traditional pigging and the by pass pigging have been done through the changes of pigging velocity, pressure, and liquid slug etc. Meanwhile the optimum by pass rate is obtained which provides guidance for the practical applications of by pass pigging. |
| Key words: by-passed pig by pass rate velocity pressure liquid slug flow |
