Measurement and Analysis of Wax Precipitation Temperature of Waxy Crude Oil in JH Oilfield
Microscopic observation method,viscosity-temperature curve method and DSC method were used to test the waxing temperature of crude oil in six different blocks of JH Oilfield.In the DSC method,the wax precipitation point at a cooling rate of 5,10℃/min was measured.The wax precipitation points at shear rates of 10,20,50 and 100 s-1 were determined by viscosity-temperature curve method.In the microscope observation method,the wax precipitation point at the cooling rate of 0.5 and 5℃/min was measured.The experimental results show that the wax precipitation points measured by different methods are different,on the one hand,it is related to the difference of the oil sample,and on the other hand,it is related to the resolution of the instrument.If the active substances and macromolecular insolubles in crude oil have a greater impact,they will also behave differently.
NETL
NSTL
万方数据
维普
