Geology, geography and global energy

Scientific and Technical Journal

Analytical Estimate of Electrical Inlet Pressure for Submersible Pumps Found in Well-head Data Base

2012. №4, pp. 65-68

Lekomtsev Aleksandr V. - Post-graduate student, National Research Perm Polytechnical University, 29 Komsomolskiy Ave, Perm, Russian Federation, 614000, alex.lekomtsev@mail.ru

The article covers the mixture density in the range of ’pump intake – a dynamic level,’ garnering information for its analysis from sinking-under-pump-fluid-level data. Under the paper’s proposed algorithm, the dependencies – based on the pump intake pressure during well production – are obtained with sufficient accuracy for practical purposes. ’Lukoil-Perm’ has used the results accruing from the analysis in choosing its dependencies. The paper notes that operating conditions may vary in wells by reducing both the reservoir and the bottomhole pressures in the reservoir, especially in well-drained geological and engineering areas. In analyzing the performance of a well-based electrical pump, the analyst needs to determine the pressure needed by his administration (PrA). The most efficient and reliable manner of doing so is by conducting a direct measurement of well-based PrA using a depth gauge. In other cases, the pressure at the pump intake’s mouth could be calculated according to the measurements of the dynamic level and pressure in the annulus. In the oil fields of the Upper Kama (Perm region), nearly all producing wells are operated mechanically (mostly – ESP unit). Up to 10 % of the wells are equipped with remote or autonomous instruments that envelop pressure and temperature measurement systems.

Key words: inlet pump pressure,producing wells,electrical submersible pump

Read