SYSTEM FOR HYDRAULIC FRACTURING INTENDED TO DRIVE A PLUG PUMP USING A GAS TURBINE ENGINE (OPTIONS) Russian patent published in 2022 - IPC E21B43/26 F02C6/00 

FIELD: hydraulic fracturing systems.

SUBSTANCE: inventions group relates to variants of a hydraulic fracturing system designed to drive a plunger pump using a gas turbine engine. The fracturing system includes fracturing equipment, high-low pressure manifold, mixing equipment and sand mixing equipment. The hydraulic fracturing equipment includes a gas turbine engine running on natural gas or diesel fuel as a power source, an outlet port, and a plunger pump. The mixing equipment is configured to mix the base fracturing fluid. The sand mixing equipment is configured to supply the base fluid for fracturing and the proppant for fracturing into the high-low pressure manifold. The first end of the high-low pressure manifold is connected to the fracturing equipment through a connecting pipeline. The second end of the high-low pressure manifold is connected to the wellhead. In the first embodiment of the system: the outlet end of the gas turbine engine is connected to the outlet channel, while the output drive end of the gas turbine engine is connected to the plunger pump through a connecting device. The connecting device contains at least one reducer. The input speed of the gearbox corresponds to the output speed of the gas turbine engine, and the input torque of the gearbox corresponds to the output torque of the gas turbine engine. The exhaust passage and the axis of rotation of the gas turbine engine are arranged in a straight line along the mechanical drive power transmission direction. In the second embodiment of the system, the plunger pump assembly comprises a plunger pump and a first gearbox combined with the plunger pump. The outlet end of the gas turbine engine is connected to the outlet channel, the output drive end of the gas turbine engine is connected to the plunger pump assembly through a coupling device containing a second gearbox followed by a transmission shaft. The exhaust passage and the axis of rotation of the gas turbine engine are arranged in a straight line along the mechanical drive power transmission direction. In the third version of the system: the outlet end of the gas turbine engine is connected to the outlet channel, the output drive end of the gas turbine engine is connected to the plunger pump by means of a connecting device. The connecting device contains at least one reducer. The input speed of the gearbox corresponds to the output speed of the gas turbine engine. The input torque of the gearbox corresponds to the output torque of the gas turbine engine. The outlet channel and the axis of rotation of the gearbox and the gas turbine engine are located in a straight line along the direction of transmission of mechanical drive power.

EFFECT: increased stability and safety of hydraulic fracturing equipment both during operation and during transportation.

19 cl, 3 dwg