The Oil And Gas Mixed Transportation Technology Research On Kuidong Oilfield

KiuDong oilfield is part of an important developing areas in Liaohe TangHai oilfield, it transports the produced things in the offshore oilfield to the onshore disposal center directly using oil-gas mixed transportation technology in order to ensure the natural exploration of the oilfield and save the space and the weight of the offshore oilfield.This thesis is on the basis of analyzing and studying the partition ,dermination methods and the theory of flow dynamics of the multiphase pipelines flow types. It ams at the developing theory research of oil-gas mixed transportation in the I square of LiaoHe KuiDong oilfield.it adops pipephase software to TACITE multiphase instant flow simulator, simulates the water power and thermodynamics process of mixed transportation pipelines from 1# platform to Rong transferring station in the oilfield,finds the universal law of the temperature droping along the pipeline, simulates the instant transformation process of the gas-contening flow in the entrance of the pipelines, finds the pressure change in the entrance of the pipeline, fix on that the biggest pressure of oil-gas mixed transportation pipelines in KuiDong I oilfield is 4.0MPa.Make use of the Fluent software to simulate and analyze the pipeline safe ceasing transportation time is 35 hours in condition that the daytime average temparatue is 0°C, the wind speed is 2m/s,the crude oil temperature in the exit of the platform is 65°C.Consider that the influencing pump working performance parameters of fluid level, gas level, the pressure in the entrance of the pump, the pressure difference inside and outside the pump and the transporting medium temparature comprehensively, we put forward four pump-selecting schemes, adopt comprehensive evaluating theory, establish the selecting scheme, fix the final mixed-transportation pumpselecting scheme that Three sets of mixed transportation pump skid-mounted systems,which is made by Bornemann company in Germany, the maximum flow in the entrance of a single mixed transportation skid-mounted is about 710m3/h,the size is 6m×4m×3.5m, the weight is 14t, the type is MPC335.