Damping fracturing pump for channel simulation

Abstract

The damping fracturing pump for channel simulation comprises a bottom frame, a motor and two sets of fracturing cavity cylindrical shells, fracturing plugs are plugged in fracturing column cavities of the two sets of fracturing cavity cylindrical shells, a lead screw sleeve is fixedly installed on one side of each fracturing plug, a lead screw is connected to a barrel opening in the tail end of each lead screw sleeve in a screwed mode, and the lead screw is connected with a piston rod in a screwed mode. One end of each lead screw extends to the outer side of the corresponding lead screw sleeve and is provided with a lead screw gear, the two lead screw gears are connected together in a meshed mode, the motor is installed on the bottom frame through a motor damping base, a motor belt wheel is installed on a rotor shaft of the motor in a connected mode, and the motor belt wheel is connected with a lead screw belt wheel through a synchronous belt. And the lead screw belt wheel is mounted on any one of the lead screws. The device has the advantages that the motor is driven through flexible connection of the synchronous belt, synchronous vibration, caused by vibration, of a fracturing cavity cylindrical shell and the like is reduced, meanwhile, damping is conducted through the motor damping base at the bottom, the overall damping effect is good, and influences, caused by vibration, on the channel simulation box are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of simulation fracturing pump especially is concerned with a shock absorption fracturing pump for channel simulation. BACKGROUND

[0002] The crude oil in shale reservoir is stored in nanoscale pore throats, and cannot effectively flow into the wellbore under natural conditions, therefore, to realize the effective exploitation of shale oil, it is necessary to break the dense shale reservoir through advanced engineering technical means, and to build a high-speed channel for the flow of crude oil between the shale pore throat and the wellbore, and the simulation prediction after data collection in the channel simulation box is needed before exploitation, and a small fracturing pump is usually used for simulation in the channel simulation process, the motor of the fracturing pump drives the cylinder to rotate through the crankshaft and rotating mechanism, and the vibration also drives the cylinder itself to vibrate, which causes the simulation box connected therewith to be affected by vibration, and in actual application, the vibration can be ignored due to the large ground, but the vibration of the small simulation device such as the simulation box has a great influence on the simulation process, resulting in data error. SUMMARY

[0003] The utility model discloses a shock absorption fracturing pump for channel simulation to solve the above -mentioned problem.

[0004] The utility model discloses a shock absorption fracturing pump for channel simulation to solve the above -mentioned problem.

[0005] A shock absorption fracturing pump for channel simulation, comprising a chassis, a motor and two groups of fracturing cavity column shells, a fracturing plug is inserted into the fracturing column cavity of each of the two groups of fracturing cavity column shells, a lead screw sleeve is fixedly installed on one side of the fracturing plug, a lead screw is rotatably connected to the end of the lead screw sleeve, one end of the lead screw extends to the outside of the lead screw sleeve and is provided with a lead screw gear, the two lead screw gears are meshed and connected together, the motor is installed on the chassis through a motor damping seat, a motor pulley is connected and installed on the rotor shaft of the motor, the motor pulley is connected with a lead screw pulley through a synchronous belt, the lead screw pulley is installed on any one of the lead screws, a discharge end check valve is installed on the end side shell of the fracturing cavity column shell away from the lead screw gear, and an inlet end check valve is installed on the ring side shell wall of the fracturing cavity column shell away from the lead screw gear.

[0006] Further, the two inlet end check valves are connected together through an inlet end three-way pipe, and an inlet end pipe connecting piece is further installed on the inlet end three-way pipe.

[0007] Further, the two discharge end check valves are connected together through a discharge end three-way pipe, and a discharge end pipe connecting piece is further installed on the discharge end three-way pipe.

[0008] Further, a telescopic column is fixedly installed on the side cavity wall of the fracturing column cavity near the screw gear.

[0009] Further, a gas pressure hole is formed on the side cavity wall of the fracturing column cavity near the screw gear.

[0010] Further, the outer side of the two screw gears is provided with a gear cover.

[0011] Further, the two fracturing cavity column shells are fixedly installed on the base frame through a column shell fixing frame.

[0012] Beneficial effects are that the motor is driven through the soft connection of the synchronous belt, synchronous vibration of the fracturing cavity column shell and the like caused by vibration is reduced, damping is carried out through the motor damping seat at the bottom, the overall damping effect is good, and influence on the channel simulation box caused by vibration is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a top view structural schematic diagram of the channel simulation damping fracturing pump.

[0014] Fig. 2 is a fracturing cavity column shell schematic diagram of the channel simulation damping fracturing pump.

[0015] The signs are explained as follows:

[0016] 1, base frame; 2, fracturing cavity column shell; 3, motor; 4, motor damping seat; 5, synchronous belt; 6, motor pulley; 7, screw pulley; 8, gear cover; 9, column shell fixing frame; 10, inlet pipe connecting piece; 11, inlet three-way pipe; 12, inlet check valve; 13, discharge check valve; 14, discharge three-way pipe; 15, discharge pipe connecting piece; 16, screw gear; 17, screw; 18, screw sleeve; 19, fracturing plug; 20, telescopic column; 21, gas pressure hole. DETAILED DESCRIPTION

[0017] The utility model is further described below in combination with the drawings:

[0018] As Figs. 1-2 shown, a channel simulation damping fracturing pump is composed of a base frame 1, a motor 3 and two groups of fracturing cavity column shells 2, and the two groups of fracturing cavity column shells 2 are arranged side by side.

[0019] The fracturing column cavity of the two groups of fracturing cavity column shells 2 is plugged with a fracturing plug 19, one side of the fracturing plug 19 is fixedly installed with a screw sleeve 18, the end sleeve opening of the screw sleeve 18 is screwed with a screw 17, one end of the screw 17 extends to the outer side of the screw sleeve 18 and is installed with a screw gear 16, and the two screw gears 16 are meshingly connected together.

[0020] The motor 3 is installed on the base frame 1 through a motor damping seat 4, the damping seat is a commonly used damping component matched with the motor, a motor pulley 6 is connected and installed on a rotor shaft of the motor 3, the motor pulley 6 is connected with a lead screw pulley 7 through a synchronous belt 5, the lead screw pulley 7 is installed on any lead screw 17, so that the rotation of the lead screw 17 is driven through the belt, and vibration of the motor 3 does not excessively affect the fracturing cavity column shell 2;

[0021] An outlet one-way valve 13 is installed on an end side shell of the fracturing cavity column shell 2 away from the lead screw gear 16, an inlet one-way valve 12 is installed on a ring side shell wall of the fracturing cavity column shell 2 away from the lead screw gear 16, and fracturing fluid enters the fracturing column cavity through the inlet one-way valve 12 and then is discharged through the outlet one-way valve 13.

[0022] As shown in Figs. 1-2 The utility model discloses the following more optimized specific structure:

[0023] Two inlet one-way valves 12 are connected together through an inlet three-way pipe 11, and an inlet pipe connecting piece 10 is further installed on the inlet three-way pipe 11 and is used for connecting an output pipe of a fracturing fluid storage tank.

[0024] Two outlet one-way valves 13 are connected together through an outlet three-way pipe 14, and an outlet pipe connecting piece 15 is further installed on the outlet three-way pipe 14 and is used for connecting a fracturing fluid inlet pipe of a channel simulation box.

[0025] A telescopic column 20 is fixedly installed on an end side cavity wall of the fracturing column cavity close to the lead screw gear 16, and a tail end of the telescopic column 20 is connected and installed on a fracturing plug 19.

[0026] A gas pressure hole 21 is arranged on a side cavity wall of the fracturing column cavity close to the lead screw gear 16, and is used for adjusting internal and external gas pressures.

[0027] Gear covers 8 are arranged on the outer sides of the two lead screw gears 16.

[0028] The two fracturing cavity column shells 2 are fixedly installed on the base frame 1 through a column shell fixing frame 9.

[0029] As shown in Figs. 1-2 When the channel simulation damping fracturing pump is used, the inlet pipe connecting piece 10 is connected with an outlet pipeline of a liquid storage tank, and the outlet pipe connecting piece 15 is connected with a fracturing fluid inlet pipe of a channel simulation box.

[0030] When used, starting the motor 3 can make the two fracturing cavity column shells 2 circulate liquid in and liquid out, continuously provide fracturing fluid for the channel simulation box, the motor 3 is driven through the soft connection of the synchronous belt, synchronous vibration of the fracturing cavity column shell 2 caused by vibration is reduced, damping is carried out through the motor damping seat 4 at the bottom, the overall damping effect is good, and the channel simulation box is not affected by vibration.

[0031] Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A damped fracturing pump for channeling simulation, characterized by: The utility model relates to a fracturing device, including the chassis, motor and two groups of fracturing cavity column shell, the fracturing column cavity of two groups fracturing cavity column shell is all stuffed with fracturing plug, one side of fracturing plug is equipped with fixed screw sleeve, the terminal cylinder mouth of screw sleeve is screwed with screw, and one end of screw extends to the outside of screw sleeve and is equipped with screw gear, two screw gears are meshed and connected together, the rotor shaft of motor is connected and installed with motor pulley through motor damping seat and is installed to the chassis, the motor pulley is connected with screw pulley through synchronous belt, and the screw pulley is installed to any screw, the end side shell of fracturing cavity column shell is installed with exhaust end check valve away from screw gear, and the ring side shell wall of fracturing cavity column shell is installed with inlet end check valve away from screw gear.

2. A damped fracturing pump for channel modeling according to claim 1, characterized in that: Two inlet end check valves are connected together through inlet end tee pipe, and inlet end pipe connecting piece is also installed on the inlet end tee pipe.

3. A damped fracturing pump for channel simulation according to claim 1, characterized in that: Two exhaust end check valves are connected together through exhaust end tee pipe, and exhaust end pipe connecting piece is also installed on the exhaust end tee pipe.

4. A damped fracturing pump for channel modeling according to claim 1, characterized in that: The end side cavity wall in the fracturing column cavity is installed and fixed with telescopic column close to screw gear.

5. A damped fracturing pump for channel modeling according to claim 1, characterized in that: The side cavity wall in the fracturing column cavity is provided with air pressure hole close to screw gear.

6. A damped fracturing pump for channel modeling according to claim 1, characterized in that: The outside of two screw gears is covered with gear cover.

7. A damped fracturing pump for channel simulation according to claim 1, characterized in that: Two fracturing cavity column shells are fixedly installed on the chassis through column shell fixing frame.

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