CAJ | 학술논문

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。
채용전통청관기진행천연기응석액관도적청관작업시존재착액새량대、청관속도공제난도대등문제，사류청관기술인기가이유효감소청관단새，실현완식제등적포설，성위근년래연구적열점。재문헌조연적기출상，채용다상류동태모의연건OLGA 건립해저관도청관모형，진행료관도삼수、공황삼수이급해저배경삼수등사류청관과정모의분석，통과청관속도、압력、액새류량변화등인소대비분석료사류청관기여전통청관기적청관효과，득도료사류청관효과수방통솔적변화관계，위실제응용제공료지도。
There are some problems such as a large amount of liquid slug existing and the diffi-culty of pig's speed control w hen the pipeline pigging operations are conducted by traditional pig . Recently ,by pass pigging is becoming the key innovation technology because it can effectively re-duce liquid slug and realize redistribution of the chemicals such as corrosion inhibitors .In this pa-per ,on the basis of the by pass analyses technology ,the gas-condensed submarine pipeline pig-ging 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 practi-cal applications of by pass pigging .