METHOD FOR UNIFICATION AND INCREASING ENERGY EFFICIENCY OF MECHANIZED OIL PRODUCTION PROCESS Russian patent published in 2025 - IPC E21B43/12 F04B47/06 

FIELD: mining.

SUBSTANCE: invention relates to oil production and represents a new method of pressure injection in tubing strings. Method of mechanized oil production includes use of pump and compressor equipment. Tubing sections are used for erection of tubing string, each of which is equipped with electrically driven pump of helical-axial type, which is integrated into each section as well as heating element. Electrically driven pump of helical-axial type and heating element are supplied via control automatics from power cable. Injection of head pressure in the tubing string is performed uniformly along the whole length of the string as well as stabilization of physical and mechanical properties of pumped liquid. Each tubing section is stage of multi-stage pump, where maximum head is proportional to number of tubing sections. Each tubing section is equipped with a piece of a power cable ended with tight plugs with an angular degree of freedom, which join the power cable at unscrewing of the sections.

EFFECT: improving energy efficiency, unifying the process of mechanized oil production, simplifying the operation processes of operating wells, increasing operating life of tubing equipment, reducing the amount of ground equipment.

1 cl, 1 dwg