Study On Gas Gathering And Distribution Auxiliary Equipment System Under 5 Billion Square Meters Stable Production Of DND Gas Field

This project is based on the production data transmission system of DND gas gathering,analysis of surface gathering system and related equipment energy efficiency and gas gathering pipe network efficiency,gas gathering and transportation system to determine the adaptability;followed by a gas gathering pipeline network load and the transmission capacity of research,followed by a comparative study on the time and boosting technical scheme gas booster and late rational planning and supporting scheme of gas pipeline and gas line connection;the need for process optimization of gas station.The energy consumption and efficiency of related equipment and the operation efficiency of gas gathering and transportation network in gas field gathering and transportation system are studied.The existing gathering and transportation network of DND gas field is analyzed by TGNET simulation,and the operation conditions of existing gathering and transportation network in DND gas field are compared and analyzed.The pipeline operation efficiency and roughness of existing gathering and transportation network of DND gas field are determined.According to the rolling development capacity planning and construction of DND gas field,"13th Five-Year","a booster" in the field after the implementation,with change of operating pressure conditions and gas pipelines,in DND gas field production data analysis based on the research of DND gas field in the late pressurizationtime.The pressure decreasing trend of gas wells(horizontal and vertical wells)in all gas stations of gas fields is studied.By controlling the minimum station pressure at the first station of the gas field and the transmission of natural gas in the pipeline network,the minimum outlet pressure of each gas gathering station is calculated by using TGENT software.Sure a booster "gathering process operating boundary conditions and the" two stage booster "time,according to the research and analysis of two stage turbocharged implementation time,combined with gas prediction of rolling development of production scale,comparative analysis of the gas field in the late("13th Five-Year plan "period)booster technology scheme.The main contents are as follows:compare and analyze the implementation mode of "two phase supercharging"(single station pressurization,regional pressurization and regional gas station pressurization,etc.).The influence of different pressurization processes(single station pressurization and zone pressurization)on two stage supercharging process is analyzed and compared.Adjust and optimize the operation process of the dispersed dehydration in gas gathering station.Analytic hierarchy process is adopted to determine the supercharging technology in the later rolling development of gas field.Simulation and analysis of DND gas field in the stable 5 billion party gathering pipeline network load and transport capacity of the status quo,improve and optimize the network system,reduce the pipeline pressure drop,rational planning and allocation of gas trunkline and connecting pipelines.The load and transport capacity of the existing surface gathering pipeline network are simulated and analyzed,and the gas transmission line and connection pipeline are rationally planned and configured.Combined with the production model of overall pressurization,external transmission and centralized dewatering and hydrocarbon removal in gas field,the gas gathering station technology is optimized.The simulation of the"one stage concentrated pressurization and external transportation" and the centralized dehydration and hydrocarbon removal process optimizes the gathering and transportation process in the station,and studies the dewatering process of the gas gathering station(re heating and external transportation)...