Research on the analysis and energy conservation of flow parameter change in low temperature gathering and transportation pipeline
In order to realize the simplification and optimization of the water blending process and reduce the energy consumption of the surface gathering and transportation system,the cooling experiment has been carried out under the action of different water blending quantities and different pipe materials.The relationship between wellhead back pressure,inlet temperature and experimental time are analyzed,and the limits of adhesive wall temperature under different water blending quantities is determined,which are regressed and analyzed for the factors affecting the adhesive wall temperature and used to guide the on-site product.The results show that the change of wellhead back pressure is different with water blending quantities.The temperature change lags behind when the water blending quantity is small,and the pressure changes periodically when the water blending quantity is large.Under the same conditions,the adhesive wall temperature of fiber reinforced plastics pipe is lower than that of steel pipe.Especially in the case of high water content and high flow rate,the feasibility of low temperature gathering and transportation of fiber reinforced plastics pipe is greater.After the implementation of low temperature gathering and transportation in 10 oil wells,the annual water blending can be saved by 4.5×104 m3,the gas volume can be saved by 12.50×104 m3,the electricity can be saved by 2.99×104 kWh,and the operating cost can be saved by 115 000 yuan,which can make the research results provide technical support for the non-heating gathering and transportation process of themixed transmission network.
low temperature gathering and transportationsteel pipeadhesive wall temperaturepres-surewater blending volume
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