Structure Design Analysis And Application Of The Skid-mounted Supercharging Integration Equipment

The ground construction of low permeability oil and gas fields in China mainly consists of well group,boost pressure point and combined station.The drawbacks of the conventional standardized station field are that the single equipment is too much,the process is complex and the cost is high.In order to simplify the process and reduce the cost of development and construction,the integration of the main production facilities,skid-mounted and digital exploration are particularly urgent.At present,there is no skid-mounted supercharging device which is specially used for the development of low permeability reservoir all over the world.The development of integrated device of oil-gas gathering technology will fill the technical gaps of similar products in the domestic oil industry,and will help improving the overall level of the ground construction of low permeability reservoirs.Based on the comparative study of the traditional booster station process,this paper developed a set of integrated digital supercharging skid.The device combined a plurality of production equipments in traditional booster station,such as filter,separating buffer tank,heating furnace,gas-liquid separator and efflux pump,into a skid.This deviceequips the intelligent control system,which has the functions of separate,buffer,heating and supercharging.The device can realize remote terminal control and unattended operation,which meets the requirement of digital management.It can replace the small oil gas gathering and transportation station in low permeability oil field.Reaserch were carried out focusing on the key module for integrated digital supercharging skid,including heating module,buffer separation module,and the partition module between the two.By using the computational fluid dynamics software,we simulated the fire tube turbulent flow and the combustion process of the heating module.We further studied the combustion and heat transfer of the heating furnace under different conditions.It is found that the temperature distribution of the heating furnace is homogeneousalong the furnace,and it decreases rapidly at the smoke tube.In addition,improving the combustion power of the burner is beneficial to increase the heating efficiency,and can increase the smoke temperature,and the dew point corrosion of the flue gas is better protected.The influence laws of droplet diameter,inlet velocity,spacing of the corrugated plate and droplet volume fraction on the fog efficiency and the pressure difference between inlet and outlet is investigated.It is found that the efficiency of corrugation plate defroster increases with increasing the droplet diameter,the inlet velocity and the droplet volume fraction,and it decreases with the increase of the pitch of the blades.In addition,the pressure difference between the inlet and outlet of the corrugated plate increases with the increase of the inlet velocity and droplet volume fraction,as well as the decrease of the particle diameter and the spacing of the corrugated plate.Based on finite element analysis of the stress and deformation of the partition plate which locates between the heating section and the separation buffer,the parameters of the ribbed plate and the circular plate structure were optimized.The results show that the straight rib structure is better than that of the circular plate structure.