Study of hydrate plugging risk in gas-condensate pipelines
RUAN Chaoyu, SHI Bohui, SONG Shangfei, DING Lin, LIU Yang, HUANG Qiyu, GONG Jing
National Engineering Laboratory for Pipeline Safety/MOE Key Laboratory of Petroleum Engineering/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing 102249, China
Hydrate formation and plugging are the main risks in the process of deep sea oil production. The prediction of hydrate plugging probability is the foundation of the safe operation of gas-condensate pipelines. In this paper, by introducing a limit state method of reliability to hydrate plugging risk calculation, we established a mathematical model based on hydrate formation and flow properties. We comprehensively considered the uncertainty of pipeline operation parameters and we used Latin Hypercube Sampling(LHS) and Proper Orthogonal Decomposition(POD) methods to solve the limit state equation of plugging risk. Probability analysis of hydrate plugging in gas-condensate pipelines has been realized.
Key words：
hydrate ; growth shell model ; plugging probability ; reliability ; LHS and POD
阮超宇，史博會(huì)，宋尚飛,，丁麟,，柳揚(yáng)，黃啟玉,，宮敬. 天然氣凝析液管道水合物堵管風(fēng)險(xiǎn)概率研究[J]. 石油科學(xué)通報(bào), 2016, 1(2): 257-269. RUAN Chaoyu, SHI Bohui, SONG Shangfei, DING Lin, LIU Yang, HUANG Qiyu, GONG Jing. Study of hydrate plugging risk in gas-condensate pipelines. 石油科學(xué)通報(bào), 2016, 1(2): 257-269.
