Hydraulic Calculation Method of Annular Sewage Pipe Network in Oilfield

Author of the article:Wang Li1, Le Xinpeng2, Zhang Yu1, Li Xingyu1, Zou Jiyang1, Cheng Yi1

Author's Workplace：1． School of Petroleum Engineering, Northeast Petroleum University,Daqing, Heilongjiang, 163318,China； 2． Daqing Oil Production 4th Plant Planning and Design Research Institute

Key Words：Oil field; Sewage system; Annular pipe network; Hydraulic simulation

Abstract：The annular oil field sewage system is a network system with complex structure and water quality. There is no suitable method to solve the hydraulic simulation problem at present. Based on the key elements of oilfield sewage system, by analyzing the pipe network structure and water quality characteristics of the system, combined with the continuity equation and energy equation, the hydraulic calculation model of the annular sewage pipe network is established. Based on this, the hydraulic simulation software of the annular sewage pipe network is developedto calculatethe sewage pipe network in the actual production. The analysis shows that the method can effectively deal with the hydraulic simulation of the annular pipe network structure. With smallthe calculation deviation,this methodcan fully meet the engineering calculation and provide theoretical and data support for engineering design andreal production.