Research On Simulation System Of Oil Well's Reasonable Submergence Depth On Fluent

In the oil field with the sucker-rod pumping system, it is the important ways of reducing crude oil's cost to reduce the energy consumption of pumping unit and improve the system efficiency of pumping unit. It is the most available means to realize these ways to set up reasonable submergence depth. But submergence depth is given according to oilfield zones in every oil field, most of which is unreasonable. This not only wastes energy sources, but also runs the equipment of pumping unit under abnormal condition. So it is an urgent problem to be solved that submergence depth is controlled under reasonable range.Aiming at the problem in this article, the relation is analyzed between the pumping efficiency and the submergence depth in terms of hydrodynamics, the simulation of the oil well pump's working process is developed by the software of Fluent6.1 and Borland C++ Builder. The article creates the mathematical model of the relation between the pumping efficiency and the submergence depth, the balance of output and input, the system efficiency and the submergence depth with the different parameters. The diagnostic system of single well's submergence depth is developed, which is easily operated by on-the-spot personnel and the single well's submergence depth can be confirmed under different physical conditions.The completion of this system will realize how to confirm reasonable submergence depth in the oil extraction, and optimize the parameter of single well. According to the monthly database of the single well, this system can provide the reasonable submergence depth of single well, work out the output, pump efficiency and system efficiency of this submergence depth. Thus make the equipment of pumping unit run steadily, set up the reasonable swabbing parameter, improve systematic efficiency, reduce energy consumption, make the equipment obtain the largest output and the highest economic benefits under thenormal condition.