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Edition and Publication:
< Natural Gas and Oil > Editorial Department
Hosted by:
China Petroleum Engineering & Construction Corporation Southwest Company
Authorized by:
China Petroleum Engineering & Construction Corporation
Co-hosted by:
Overseas Research Center of Research Institute of Petroleum Exploration and Development
Editor in Chief:
Du Tonglin
Vice Editor in Chief:
Tang Xiaoyong,Pu Liming
Address:
No.6, Shenghua Road, High-tech District, Chengdu, Sichuan, China
Postal Code:
610041
Tel:
028-86014709
028-86014500
Email:
cnpc-ngo@cnpc.com.cn
Issue:ISSN 1006-5539
CN 51-1183/TE

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Simulation Diagnosis Method for Gas Lift Multi-point Gas Injection

Author of the article:Luo Wei, Xie Xiangwei, Sun Wanming

Author's Workplace：1.Petroleum Engineering College of Yangtze University;2.Branch of Key Laboratory of CNPC for Oil and Gas Production, Yangtze University;3.Interpretation Center of Tuha Department, Logging Co., Ltd., PetroChina

Key Words：Multi-point gas injection; Multiphase flow; Pressure distribution; Simulation diagnosis; Sectional calculation

Abstract：In view of complex multiphase flow in oil tube with gas lift well multi-point gas injection, the existing diagnosis method used for calculating the well multiphase pressure distribution above gas injection point through using total gas production rate cannot meet the actual situation of different segments with different total gas rates in multi-point gas injection conditions, the gas lift multi-point gas injection simulation diagnosis method is derived by real considering different segments with different total gas rates in the process of calculation according to the working condition and gas injection rate of the gas lift valves, calculated is multiphase flow pressure distribution of each segment by taking the divided segment calculation method, realized is accurate diagnosis with multi-point gas injection well working condition and it is proved by the calculation and comparison through taking Jidong Oilfield gas lift wells for an example.