INSTALLATION FOR SIMULTANEOUS SEPARATE EXTRACTION AND INJECTION Russian patent published in 2020 - IPC E21B43/14 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil and gas industry and is intended for use on well with simultaneous separate operation, where water is pumped to lower formation to maintain formation pressure, and production is performed on upper formation. Installation for simultaneous separate extraction and pumping through one well comprises drive connected to screw pump shaft, two tubing strings of different length, one of which is a positive, and second is producing with screw pump, parallel two-channel armature, wellhead fittings and packer for separation of formations. Drive used is impeller-type hydraulic drive installed in tubing string injection tubing with possibility of transfer of rotation from its output shaft to shaft of screw pump of inverted type through motor-reducer with parallel shafts, installed above parallel two-channel anchor with possibility of liquid passage through tubing string.

EFFECT: technical result consists in simplification of installation, expansion of technological capabilities due to use of water energy to maintain formation pressure as energy for lifting production of oil-bearing reservoir, low power consumption.

1 cl, 2 dwg