PRESSURE EXCHANGE SYSTEM WITH PROPULSION SYSTEM Russian patent published in 2018 - IPC F04F13/00 E21B43/267 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions refers to the oil and gas industry, in particular to equipment, technologies for hydraulic fracturing. Pressure exchange system includes a hydraulic fracturing system including a hydraulic energy transfer system in the form of a rotational isobaric pressure exchanger, which is arranged to exchange pressure between the first fluid and the second fluid, the propulsion system, connected to a hydraulic power transmission system and configured to transmit the torque to the hydraulic power transmission system, and a controller with one or more operating modes for controlling the propulsion system.

EFFECT: inventions are aimed at facilitating the rotation of the hydraulic power transmission system by using highly viscous fluids with solid particles, which accelerates its launch, reduces the wear of high-pressure pumps, increasing the pressure of hydraulic fracturing, allows to grind solid particles and mix the fluids more precisely in the hydraulic system by changing the operating speed.

16 cl, 11 dwg