Abstract
The article shows the possibility of getting of additional information about determination of productivity of electric centrifugal pumping unit, as well as productive parameters of well by using of measurements with the help of precise thermo manometric system at the pump suction. The equipment of mechanized stack of wells with remote pressure and temperature sensors at pump suction enables to solve the tasks more precisely. Using of telemetry systems with thermo-manometric sensors constantly fixing parameters of downhole pumping equipment and environment is a promising direction for solving the tasks of pressure transient analysis of mechanized stack. As distinct from wave measuring the TMS sensor detects pressure on suction level of electrical borehole pump, that is why there is not necessity to calculate the fluids density in annular space above electrical centrifugal pump while calculating bottom hole and rock pressure. Thus, due to widespread introduction of borehole pumps equipped with pressure sensors in oil production, there are no problems with borehole pressure data logging. But direct measurement of fluid flow rate coming from the bed is a difficult task, especially for marginal wells. Classic pressure transient analysis technologies do not provide determining the change in flow rate over time, and this variable is fixed (for example: pressure transient analysis after well start-up with constant production rate, immediate cease of fluid flow from the bed after well shut-in from steady state). The relevance of the topic is determined by necessity of developing the well survey methods at nonsteady state during the process of start-up and improving the results of hydrodynamic studies interpretation quality. Results of the researches confirmed the adequate accuracy of the determination of productive characteristics of well under the pressure suppression curve.
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