Determination technological parameters of wellbore heat treatment for a deep pump with hollow rods

Aleksandr V. Lekomtsev PNRPU Perm
Pavel Y. Ilyushin PNRPU Perm
Vitalii S. Bakaneev PNRPU Perm
Grigorii Y. Korobov Saint Petersburg Mining University Saint Petersburg

One of the main complications, being during the exploitation of production wells, is the formation of asphaltene-resinparaffin deposits (ARPD). In conditions of low inter-cleaning periods of well work (less than 30 days) and high strength of structural-mechanical bonds in ARPD, formed in tubing above the pump, the most economically and technologically expedient way to combat complications are flushing-out of well. The calculation of the thermal state of a well equipped with a sucker rod pump during heat treatment through hollow rods with a bypass clutch are considered in the paper. Based on the results of the calculations, it was noted that the temperature of the injected agent (hot oil or water) affects the temperature of the inner wall of the tubing lower than the coolant flow rate.

Materials and methods
Assessment of the thermal state of the well during heat treatment through hollow rods and determination of the most optimal conditions for effective removal of asphaltenes, resins and paraffins.

Сomplications at oil producing, hollow rods, flushing-out of well, мodeling of well flushing, struggle with ARPD
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