〗Monitoring Gas Pipeline Blockage by Transient Mass Flow Rate Pulse

doi:10.3863/j.issn.1000-2634.2008.01.043

西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (1): 154-156.DOI: 10.3863/j.issn.1000-2634.2008.01.043

• 石油机械工程及其它 • Previous Articles Next Articles

〗Monitoring Gas Pipeline Blockage by Transient Mass Flow Rate Pulse

TIAN Yuan¹ XIE Ying² YUAN Zong-ming² HE San² LIU Xue-mei²

1.Chongqing University of Science and Technology,Chongqing 400042,China;2.Petroleum Engineering Institute,Southwest Petroleum University,Chengdu Sichuan 610500,China

Received:2006-12-01 Revised:1900-01-01 Online:2008-02-20 Published:2008-02-20
Contact: TIAN Yuan

Abstract

Abstract: Because of the influence of low temperature,high speed flow and disturbance which make natural gas form hydrate to block pipeline,it is presented that by means of the transmission characteristic of mass flow rate pulse artificially generated at pipeline entrance in the pipeline,the timebreaking algorithm and TVD/Godunov hybrid formula is used to simulate numerically to not completely blocked pipeline,the pressure fluctuating history curves at the entrance are analyzed to determine the blockage location,length and strength of the gas pipeline.The technology provides the method and means for precisely detecting the blockage location and length at initial blockage time,working out correct pipelinecleaning operation plan and decreasing the risk of complete pipeline blockge.

Key words: gas pipeline, blockage positioning, TVD hybrid algorithm, pulse, numerical simulation

CLC Number:

TE88

TIAN Yuan XIE Ying YUAN Zong-ming HE San LIU Xue-mei. 〗Monitoring Gas Pipeline Blockage by Transient Mass Flow Rate Pulse[J]. 西南石油大学学报(自然科学版), 2008, 30(1): 154-156.

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〗Monitoring Gas Pipeline Blockage by Transient Mass Flow Rate Pulse

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