EXPERIMENTAL STUDY ON FLOW ASSURANCE OF HCFC -141B HYDRATE SLURRY IN PIPELINES
The problem of hydrate blockage of pipelines in offshore production is becoming ever-increasing severe because oil fields in ever-increasing unusual environments have been brought in production. HCFC-141b was selected as the substitute to study the flow behaviors and the mechanism of the hydrates blockage in pipelines. The slurry like hydrates and slushlike hydrates are observed with the formation of hydrates in pipeline. There are critical hydrate volume concentrations for HCFC-141b hydrate slurries and pipeline will be free of hydrate blockage when the hydrate volume concentration is lower than the critical volume concentration; while on the contrary, pipeline will be easy to be blocked. Based on these experiments, a non-dimensional parameter is proposed, which shows the agglomerating probability of hydrate particles in pipeline and can be used to judge the safety of the pipeline. Moreover, a safe model to judge the safely flow hydrate shinies was presented and verified with the experimental data, which shows that the model is effective to judge if the pipeline can be run safely or not and can give some introductions to the further studying on natural gas hydrate slurries.
HCFC-141b hydrate slurry flow cssurance morphobgy blockage
Wuchang Wang Yuxing Li Shuanshi Fan Deqing Liang Chao Zhu
Department of Storage and Transportation Engineering Qingdao,China South China university of Technology,Key Laboratory of Enhanced Heat Transfer and Energy Conservatio Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou,China
国际会议
The 3rd World Conference on Safety of Oil and Gas Industry(第三届世界石油天然气工业安全会议 WCOGI 2010)
北京
英文
409-414
2010-09-27（万方平台首次上网日期，不代表论文的发表时间）