CN210134876U - Hydraulic pulse wave augmented injection device - Google Patents
Hydraulic pulse wave augmented injection device Download PDFInfo
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- CN210134876U CN210134876U CN201920897644.3U CN201920897644U CN210134876U CN 210134876 U CN210134876 U CN 210134876U CN 201920897644 U CN201920897644 U CN 201920897644U CN 210134876 U CN210134876 U CN 210134876U
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Abstract
The utility model relates to a water conservancy pulse ripples increases annotates device, concretely relates to layering water conservancy pulse ripples increases annotates water installation. Consists of a working cylinder and a hydraulic pulse wave injection device; the hydraulic pulse wave injection device is inserted in the sealed working barrel; the working cylinder consists of an outer cylinder and an inner cylinder, and a bridge-type channel is arranged between the outer cylinder and the inner cylinder; the hydraulic pulse wave injection device comprises a hydraulic pulse wave injection device shell, a spring pressure adjusting disc, a spring height adjusting piston, a pulse spring seat, an adjusting water nozzle, a steering piston, a valve ball pull rod, a valve ball return spring, an injection liquid inlet, a pull rod ring, a pull rod adjusting piston, an O-shaped ring and a sealing ring; the upper part of the shell of the hydraulic pulse wave injection device is provided with a spring pressure adjusting disc and a spring height adjusting piston; the middle part is provided with a pulse spring, a pulse spring seat and a water regulating tap; the steering piston, the valve ball pull rod, the valve ball return spring, the pull rod ring and the pull rod adjusting piston are arranged in a cavity at the lower part of the shell.
Description
Technical Field
The utility model relates to a water conservancy pulse ripples increases annotates device, concretely relates to layering water conservancy pulse ripples increases annotates device.
Background
At present, the technologies of deblocking and injection increasing for water injection strata are divided into two categories, namely chemical deblocking and physical deblocking, which are not described herein, and the physical deblocking technologies mainly include ultrasonic deblocking, low-frequency electric pulse deblocking, hydraulic vibration deblocking, and the like, and the three technologies and the technology belong to physical deblocking technologies.
The ultrasonic blockage removal is that an ultrasonic transducer is put into a water injection well, high-power ultrasonic waves are continuously emitted aiming at a water injection stratum, stratum pollution and blockage are removed by using the mechanical, cavitation, heat, acoustic flow and other effects of the high-power ultrasonic waves, oil layer blockage is loosened and falls off, oil flow channels are dredged along with liquid discharged out of the oil well, the permeability of the stratum is recovered or improved, and the purposes of increasing the yield of the oil well and increasing the injection of the water well are achieved.
The underground low-frequency electric pulse deblocking technology is characterized in that pulse discharge is carried out on a position right facing a water injection stratum through an underground discharge instrument, energy stored in a capacitor is released at the moment of discharge, a strong shock wave is generated to act on a perforation section of an oil-gas well, plugs are broken, micro cracks of a rock stratum are increased, stratum deblocking and injection increasing are achieved, and the yield of the oil well is improved.
The hydraulic vibration unblocking technology is that the vibration source is aimed at the stratum, liquid is pumped into the well by a ground pump, a piston reciprocates under the action of hydraulic power to open a water outlet hole, and high-pressure water in the pipe is discharged instantaneously to act on a target stratum. The underground vibration source can instantaneously excite and generate low-frequency hydraulic shock waves with the strength of 10MPa, the low-frequency hydraulic shock waves are small in attenuation and strong in penetrating power in the stratum, micro cracks are generated in an oil layer, the stratum permeability is improved, and pollution and blockage of the oil layer are eliminated. By utilizing the impact vibration effect of the high-strength hydraulic shock waves, the water absorption profile of the stratum can be effectively improved, the water injection speed and the water injection efficiency are improved, and the obvious water injection effect can be obtained in time for the original wells with less water injection amount and the wells without water injection.
The three blockage removing and injection increasing technologies have good blockage removing and injection increasing effects, but have short effective periods of blockage removing and injection increasing. In the three blockage removing and injection increasing technologies, injection of a water injection well must be stopped in the construction process, a pipe column is lifted out, blockage removing operation is carried out, and after one blockage removing operation is completed, next blockage removing operation is carried out after the blockage removing effective period is over.
Disclosure of Invention
The utility model aims at providing a water conservancy pulse ripples increases notes device to above-mentioned weak point. The low-frequency hydraulic pulse wave augmented injection device is permanently arranged underground, original continuously and stably injected water is changed into low-frequency hydraulic pulse wave injected water by the pressure of fluid in a water injection pipe column, and the purposes of removing partial blockage of a stratum while injecting water, reducing water injection pressure and prolonging water injection period are achieved. The hydraulic pulse wave augmented injection device is effective for a long time through the effects of blockage removal and augmented injection of the hydraulic pulse waves.
A hydraulic pulse wave augmented injection device is realized by adopting the following technical scheme:
a hydraulic pulse wave injection device consists of a working cylinder and a hydraulic pulse wave injection device; the hydraulic pulse wave injection device is inserted in the sealed working barrel. The working barrel plays roles of interlayer separation and sealing in the whole pulse wave water injection operation. A sealing ring is arranged between the hydraulic pulse wave injection device and the working barrel, the hydraulic pulse wave injection device is in sealing fit with the working barrel, two water injection channels are established, and the bridge-type channel enables water flow to flow from the upper part of the hydraulic pulse wave injection device to the lower part of the water flow channel. The water outlet of the working barrel enables water flow to flow into a water flow channel of the oil collar cavity from the inside of the hydraulic pulse wave injection device.
The working barrel consists of an outer barrel and an inner barrel, a bridge type channel is arranged between the outer barrel and the inner barrel so that water flows to a lower stratum, a water outlet is arranged on the side surface of the working barrel, the water outlet is a water flow channel with an outer wall communicated with an inner wall, and the water flow channel is isolated from the bridge type channel.
The hydraulic pulse wave injection device comprises a hydraulic pulse wave injection device shell, a spring pressure adjusting disc, a spring height adjusting piston, a pulse spring seat, a water adjusting nozzle, a steering piston, a valve ball pull rod, a valve ball return spring, an injection liquid inlet and a pull rod adjusting piston.
The upper part of the shell of the hydraulic pulse wave injection device is provided with a spring pressure adjusting disc and a spring height adjusting piston which are arranged in a cavity at the upper part of the shell and used for adjusting the pre-compaction elasticity of a pulse spring; the middle part of the shell of the hydraulic pulse wave injection increasing device is provided with a pulse spring and a pulse spring seat, and the pulse spring is pressed on the pulse spring seat; the spring pressure adjusting disc and the upper chamber and the middle chamber of the spring height adjusting piston are sealed and isolated by the spring height adjusting piston; the spring height adjusting piston can slide in the middle and is sealed up and down; the side surface of the shell of the hydraulic pulse wave augmented injection device at the lower part of the pulse spring seat is provided with an upper row and a lower row of 6 water regulating nozzles, the water regulating nozzles can be internally provided with ceramic nozzles with different sizes to regulate the water injection quantity, the water regulating nozzles are transversely connected with the water outlet of the working barrel and penetrate through the outer sleeve, so that water flow penetrates through the working barrel to enter the annular cavity of the oil sleeve to carry out continuous and uninterrupted hydraulic pulse waves on the stratum, and the aims of blockage removal and augmented injection are fulfilled.
The steering piston, the valve ball pull rod, the pull rod adjusting piston and the valve ball return spring are arranged in a lower cavity of the shell of the hydraulic pulse wave injection device, and the middle cavity and the lower cavity of the shell are separated by the steering piston and the valve ball. The steering piston is arranged in the upper end of the lower chamber and can slide up and down under the action of pressure difference, the lower part of the steering piston is provided with a valve ball, a valve ball pull rod is arranged at the lower part of the valve ball and is integrated with the valve ball, the middle part of the valve ball pull rod is sleeved in a pull rod adjusting piston, and a valve ball return spring is arranged at the lower part of the valve ball pull rod. The steering piston is hollow, and the hollow cavity of the steering piston is discontinuously sealed by the valve ball to form communication and isolation between the upper cavity and the lower cavity of the steering piston. The lower part of the steering piston is provided with a valve ball seat, and the valve ball is pressed on the valve ball seat at the lower part of the steering piston under the pressure action of water injection pressure difference.
The valve ball pull rod sequentially penetrates through the valve ball return spring, the pull rod adjusting piston and the bottom of the valve ball to form a whole.
And the bottom of the shell is provided with an injection liquid inlet. The spring height adjusting piston is provided with an adjusting piston O-shaped ring. The outside of the steering piston is provided with a sealing ring, and the hollow inside of the steering piston is sealed by a valve ball.
A plurality of sets of hydraulic pulse wave injection devices can be installed in the oil well casing to perform layered continuous and uninterrupted hydraulic pulse wave blockage removal on the stratum.
The hydraulic pulse wave injection increasing device is provided with water regulating water nozzles, an upper row and a lower row of 6 water regulating water nozzles, the water regulating water nozzles are transversely connected with the water outlet of the working barrel, and ceramic water nozzles with different sizes can be arranged in the water regulating water nozzles to regulate the single-layer water injection amount. The utility model discloses pure mechanical type structure can be arranged in the pit for a long time and carry out continuous, incessant water pulse ripples to the stratum and remove stifled, increase and annotate, and it is effectual to remove stifled, increase.
The hydraulic pulse wave augmented injection device works as follows:
the working mechanism of the underground stratified hydraulic pulse wave augmented water injector is that the fluctuation output of pressure and flow is realized by the rising and the lowering of the fluid pressure in the device, so the working process can be divided into the following four processes.
1. In the initial state, the valve ball is seated on the ball seat of the steering piston to realize the sealing of the upper cavity and the lower cavity of the steering piston, and the injected water entering the oil sleeve ring cavity stops being injected due to the closing of the water injection channel.
2. Along with the water absorption of the stratum, the annular pressure of the oil sleeve is gradually reduced, differential pressure is generated between an upper cavity and a lower cavity of the steering piston, so that the steering piston is pushed to move upwards, the valve ball and the pull rod ring of the pull rod of the valve ball are moved upwards to the upper part of the inner cavity of the adjusting piston, the valve ball is separated from a valve ball seat of the steering piston under the pulling force operation of the valve ball and the pull rod of the valve ball, the valve ball and the pull rod fall under the action of a valve ball return spring until the pull rod ring reaches the bottom of the pull rod adjusting piston, the upper cavity and the lower cavity of the steering.
3. When the pressures of the upper chamber and the lower chamber of the steering piston reach balance, the steering piston moves downwards under the action of the elastic force of the pulse spring, and the middle water channel of the steering piston is always kept in an open state, so that the water injection pressure is kept at the maximum value for a certain time.
4. When the steering piston moves downwards to the bottom dead center under the action of the elastic force of the pulse spring, the valve ball is seated in the ball seat at the lower part of the steering piston 6 under the action of the valve ball pull rod, and the upper cavity and the lower cavity of the steering piston are sealed again.
Therefore, the steering piston repeatedly goes up and down alternately to periodically form low-pressure and high-pressure hydraulic pulse waves, and the periodic pulse water injection of the water injection well is realized. The hydraulic pulse wave is transmitted in the pores of the oil layer to enlarge the pores of the oil layer and increase the flow, thereby improving the seepage capability of the stratum, dredging oil flow channels and achieving the purposes of unblocking and injection increasing.
Under the elastic force of the pre-adjusting pulse spring 3 of the pressure adjusting disk and the spring height adjusting piston, the valve ball combination can generate hydraulic pulse waves with continuously adjustable amplitude of 0-6MPa and controllable frequency of 0.01-35 Hz in the well.
The hydraulic pulse wave augmented injection device has the beneficial effects that:
the utility model discloses hydraulic pulse ripples increases annotates device structural design is reasonable, compact, operation convenient to use, and pure mechanical type structure can be arranged in the pit for a long time, carries out in succession, incessant unblock, increases annotates the stratum, and unblock, increase annotate respond well.
The concrete advantages are embodied in the following points:
(1) the utility model achieves the purpose of blockage removal and injection increase by injecting the pulse of the underground hydraulic pulse wave injection increasing device into the injected water; the low-frequency hydraulic pulse wave injection-increasing device is placed in the well for a long time, the plugging and injection-increasing effects on the stratum are continuous and uninterrupted, and the plugging and injection-increasing effects are good;
(2) the hydraulic pulse wave injection increasing device of the utility model is used to increase the water injection quantity of each water injection well in a certain unit block according to different stratum conditions, thereby ensuring that the whole water injection of the block reaches the water distribution requirement and finally improving the crude oil recovery ratio of the block;
(3) by using the hydraulic pulse wave augmented injection device, on the premise of ensuring that water injection meets water distribution, ground water injection pressure can be reduced, so that not only can the power consumption of the pump be reduced, but also the investment of equipment such as pumps, valves, pipelines and the like can be reduced, and good energy-saving benefit can be obtained; meanwhile, the water injection safety is improved due to the reduction of the water injection pressure;
(4) use the utility model discloses water conservancy pulse ripples increases annotates device, injected water add the deceleration suddenly with the pulse wave mode in the space, and the alternating force of applying on the pore throat plug can destroy the condensation between the plug to alleviate and eliminate space scale deposit and jam, can practice thrift the unblock cost of other physics, the chemical measure of water injection well greatly.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural view of a hydraulic pulse wave injection device of the present invention.
Fig. 2 is a schematic view of the working barrel structure of the hydraulic pulse wave augmented injection device of the present invention.
Fig. 3 is an application schematic diagram of the hydraulic pulse wave augmented injection device of the present invention.
In the figure: 1. the hydraulic pulse wave injection device comprises a hydraulic pulse wave injection device 2, a working barrel 3, a wellhead filter 4, a sleeve 5, an oil pipe 6 and a packer;
1-1 parts of spring pressure adjusting disc, 1-2 parts of spring height adjusting piston, 1-3 parts of pulse spring, 1-4 parts of pulse spring seat, 1-5 parts of adjusting water tap, 1-6 parts of steering piston, 1-7 parts of valve ball, 1-8 parts of valve ball pull rod, 1-9 parts of valve ball reset spring, 1-10 parts of injection liquid inlet, 1-11 parts of pull rod ring, 1-12 parts of pull rod adjusting piston, 1-13 parts of steering piston water outlet, 1-14 parts of hydraulic pulse wave injection device shell; 1-15, an upper chamber; 1-16, middle chamber; 1-17, a lower chamber; 1-18, O-ring; 1-19, a sealing ring; 1-20, valve ball seat;
2-1, an outer cylinder, 2-2, an inner cylinder, 2-3, a bridge channel, 2-4 and a water outlet.
Detailed Description
Referring to the attached drawings 1-3, a hydraulic pulse wave injection device consists of a working cylinder 2 and a hydraulic pulse wave injection device 1; the hydraulic pulse wave injection device 1 is arranged in the working barrel 2. The hydraulic pulse wave injection device is inserted in the sealed working cylinder 2. The working barrel 2 plays a role in interlayer separation and sealing in the whole pulse wave water injection operation. A sealing ring is arranged between the hydraulic pulse wave injection device 1 and the working barrel 2, the hydraulic pulse wave injection device 1 is in sealing fit with the working barrel 2 to establish two water injection channels, and the bridge-type channel 2-3 enables water flow to flow from the upper part of the hydraulic pulse wave injection device to the lower part of the water flow channel. The water outlet 2-4 of the working barrel enables water flow to flow into a water flow channel of the oil collar cavity from the inside of the hydraulic pulse wave injection device 1.
The working barrel 2 consists of an outer barrel 2-1 and an inner barrel 2-2, a bridge type channel 2-3 is arranged between the outer barrel 2-1 and the inner barrel 2-2 so that water flows to a lower stratum, a water outlet 2-4 is arranged on the side surface of the working barrel 2, the water outlet 2-4 is a water flow channel with the outer wall communicated with the inner wall, and the water flow channel is isolated from the bridge type channel.
The hydraulic pulse wave injection device 1 comprises a hydraulic pulse wave injection device shell 1-14, a spring pressure adjusting disc 1-1, a spring height adjusting piston 1-2, a pulse spring 1-3, a pulse spring seat 1-4, an adjusting water nozzle 1-5, a steering piston 1-6, a valve ball 1-7, a valve ball pull rod 1-8, a valve ball reset spring 1-9, an injection liquid inlet 1-10, a pull rod ring 1-11, a pull rod adjusting piston 1-12, an O-shaped ring 1-18, a sealing ring 1-19 and a valve ball seat 1-20.
The upper part of the shell 1-14 of the hydraulic pulse wave injection device is provided with a spring pressure adjusting disc 1-1 and a spring height adjusting piston 1-2 which are arranged in a cavity at the upper part of the shell 1-14 and used for adjusting the pre-compaction elasticity of a pulse spring 1-3; the middle part of the shell 1-14 of the hydraulic pulse wave injection increasing device is provided with a pulse spring 1-3 and a pulse spring seat 1-4, and the pulse spring 1-3 is pressed on the pulse spring seat 1-4; an upper chamber 1-15, in which the pressure adjusting disc 1-1 and the spring height adjusting piston 1-2 are installed, is sealed and isolated from a middle chamber 1-16 by the spring height adjusting piston 1-2; the spring height adjusting piston 1-2 can slide in the middle and is sealed up and down. An upper row and a lower row of 6 water adjusting nozzles 1-5 are arranged on the lateral surface of a shell 1-14 of a hydraulic pulse wave injection device at the lower part of a pulse spring seat 1-4, ceramic water nozzles with different sizes can be arranged in the water adjusting nozzles 1-5 to adjust the water injection amount, the water adjusting nozzles 1-5 are transversely connected with a water outlet 2-4 of a working barrel and penetrate through an outer sleeve 4, and a perforation hole is formed in the sleeve 4, so that water flow penetrates through the working barrel 2 to enter an oil sleeve annular cavity and continuously and uninterruptedly hydraulic pulse waves are carried out on the stratum through the perforation hole in the sleeve 4, and the purposes of blocking removal and injection increase are achieved.
The hydraulic pulse wave injection device comprises a steering piston 1-6, a valve ball 1-7, a valve ball pull rod 1-8, a valve ball return spring 1-9, a pull rod ring 1-11 and a pull rod adjusting piston 1-12, wherein the steering piston 1-6 and the valve ball 1-7 are arranged in a lower chamber 1-17 of a shell 1-14 of the hydraulic pulse wave injection device, and the steering piston 1-6 and the valve ball 1-7 are used for separating a middle chamber 1-16 of the shell from the lower chamber 1-17. The steering piston 1-6 is arranged in the upper end of the lower chamber 1-17 and can slide up and down under the action of pressure difference, the lower part of the steering piston 1-6 is provided with a valve ball seat, a valve ball 1-7 is sealed with the valve ball seat, a valve ball pull rod 1-8 is arranged at the lower part of the valve ball 1-7 and is integrated with the valve ball, the middle part of the valve ball pull rod 1-8 is sleeved in a pull rod adjusting piston 1-12, and a valve ball reset spring 1-9 is arranged at the lower part of the valve ball pull rod 1-8. The pull rod ring 1-11 is arranged in the middle of the valve ball pull rod 1-8 and is positioned in the hollow cavity of the pull rod adjusting piston 1-12. The steering piston 1-6 is hollow, and the hollow cavity of the steering piston 1-6 is discontinuously sealed by the valve ball 1-7 to form the communication and isolation of the middle chamber 1-16 and the lower chamber 1-17 of the steering piston 1-6. The lower part of the steering piston 1-6 is provided with a valve ball seat, and the valve ball 1-7 is pressed on the lower valve ball seat of the steering piston 1-6 under the pressure of water injection pressure difference.
The valve ball pull rod 1-8 sequentially passes through the valve ball return spring 1-9, the pull rod adjusting piston 1-12 and is integrated with the bottom of the valve ball 1-7.
The bottom of the shell 1-14 of the hydraulic pulse wave injection device is provided with an injection liquid inlet 1-10. The spring height adjusting piston 1-2 is provided with an adjusting piston O-shaped ring 1-18. The steering piston 1-6 is provided with a sealing ring 1-19 on the outside and a valve ball 1-7 on the inside.
A plurality of sets of hydraulic pulse wave injection devices 1 are installed in the oil well casing 4. At most 6 sets of hydraulic pulse wave injection-increasing devices 1 can be installed in the casing 4 to perform continuous and uninterrupted hydraulic pulse wave plugging removal and injection increase on 6 layers of stratum. The upper part of the working barrel 2 of the hydraulic pulse wave injection device 1 is connected with an oil pipe 5, and a packer 6 is arranged between the annular space outside the working barrel 2 of each set of hydraulic pulse wave injection device 1, so that separate-layer water injection is facilitated. The outlet of the oil pipe 5 is provided with a wellhead filter 3.
The hydraulic pulse wave injection increasing device 1 is provided with water regulating water nozzles 1-5, an upper row and a lower row of 6 water regulating water nozzles 1-5, the water regulating water nozzles 1-5 are transversely connected with water outlets 2-4 of the working barrel, and ceramic water nozzles with different sizes can be arranged in the water regulating water nozzles 1-5 to regulate single-layer water injection amount. The utility model discloses pure mechanical type structure can be arranged in the pit for a long time and carry out continuous, incessant water pulse ripples to the stratum and remove stifled, increase and annotate, and it is effectual to remove stifled, increase.
The valve ball pull rod 1-8 is arranged in the center of the hydraulic pulse wave injection device 1, the upper end of the valve ball pull rod 1-8 is contacted with the valve ball 1-7 to form a whole, when the steering piston 1-6 and the valve ball 1-7 move upwards to the top dead center, the valve ball pull rod ring 1-11 moves upwards to the upper part of the inner cavity of the pull rod adjusting piston 1-12, the valve ball 1-7 is separated from the valve ball seat of the steering piston 1-6 under the operation of the pulling force of the valve ball pull rod 1-8, and falls down together with the valve ball pull rod 1-8 under the action of the valve ball return spring 1-9 until the pull rod ring 1-11 reaches the bottom of the pull rod adjusting piston 1-12, the upper cavity and the lower cavity of the steering piston 1-6 are communicated, and high-pressure water is injected into the stratum.
The single-stage total length of the hydraulic pulse wave injection device 1 is 1200mm, and the outer diameters of the single-stage total length are respectively six sizes of 44.5 mm, 47 mm, 49.5 mm, 59.5 mm, 62 mm and 64.5 mm.
The hydraulic pulse wave augmented injection device works as follows:
the working mechanism of the underground stratified hydraulic pulse wave augmented water injector is that the pressure and flow fluctuation output is realized by the rising and the lowering of the fluid pressure in the device, so the working process can be divided into the following four processes.
1. In an initial state, the valve ball 1-7 is seated on the valve ball seat 1-20 of the steering piston 1-6 to realize the sealing of the upper chamber and the lower chamber of the steering piston 1-6, and at the moment, water entering the oil sleeve ring cavity stops filling due to the closing of the water filling channel.
2. Along with the water absorption of the stratum, the annular pressure of the oil casing is gradually reduced, pressure difference is generated between an upper cavity and a lower cavity of the steering piston 1-6, the steering piston 1-6 is pushed to move upwards, the valve ball pull rod ring 1-11 moves upwards to the upper part of an inner cavity of the pull rod adjusting piston 1-12 when the steering piston 1-6 moves upwards to the top dead center, the valve ball 1-7 is separated from a valve ball seat 1-20 of the steering piston 1-6 under the tension operation of the valve ball pull rod 1-8, and falls down together with the valve ball pull rod 1-8 under the action of a valve ball return spring 1-9 until the pull rod ring 1-11 reaches the bottom of the pull rod adjusting piston 1-12, the upper cavity and the lower cavity of the steering piston 1-6 are communicated, and high-pressure water is injected into the.
3. When the pressures of the upper chamber and the lower chamber of the steering piston 1-6 are balanced, the steering piston 1-6 moves downwards under the action of the elastic force of the pulse spring 1-3, and the middle water channel of the steering piston 1-6 is always kept in an open state, so that the water injection pressure is kept at the maximum value for a certain time.
4. When the steering piston 1-6 moves downwards to the bottom dead center under the action of elasticity, the valve ball 1-7 is seated in the valve ball seat 1-20 at the lower part of the steering piston 1-6 under the action of the valve ball pull rod 1-8, and the sealing of the upper cavity and the lower cavity of the steering piston 1-6 is realized again.
Therefore, the steering pistons 1-6 repeatedly go upwards and downwards alternately to periodically form low-pressure and high-pressure hydraulic pulse waves, and the periodic pulse water injection of the water injection well is realized. The hydraulic pulse wave is transmitted in the pores of the oil layer to enlarge the pores of the oil layer and increase the flow, thereby realizing the purposes of improving the seepage capability, dredging oil flow channels and achieving the purposes of unblocking and injection increasing.
Under the elastic force action of a pre-adjusting pulse spring 1-3 of a pressure adjusting disc 1-1 and a spring height adjusting piston 1-2, the valve ball combination can generate hydraulic pulse waves with the amplitude of 0-6MPa and the frequency of 0.01-35 Hz, and the amplitude can be continuously adjusted underground.
Claims (10)
1. A hydraulic pulse wave injection device is characterized by comprising a working cylinder and a hydraulic pulse wave injection device; the hydraulic pulse wave injection device is inserted into the sealed working barrel, and the working barrel plays roles of interlayer separation and sealing in the whole pulse wave water injection operation;
the working cylinder consists of an outer cylinder and an inner cylinder, and a bridge-type channel is arranged between the outer cylinder and the inner cylinder so that water flows to a lower stratum;
the hydraulic pulse wave injection device comprises a hydraulic pulse wave injection device shell, a spring pressure adjusting disc, a spring height adjusting piston, a pulse spring seat, an adjusting water nozzle, a steering piston, a valve ball pull rod, a valve ball return spring, an injection liquid inlet, a pull rod ring, a pull rod adjusting piston, an O-shaped ring and a sealing ring;
the upper part of the shell of the hydraulic pulse wave injection device is provided with a spring pressure adjusting disc and a spring height adjusting piston which are arranged in a cavity at the upper part of the shell and used for adjusting the pre-compaction elasticity of a pulse spring;
the middle part of the shell of the hydraulic pulse wave injection increasing device is provided with a pulse spring and a pulse spring seat, and the pulse spring is pressed on the pulse spring seat; the spring pressure adjusting disc and the upper chamber and the middle chamber of the spring height adjusting piston are sealed and isolated by the spring height adjusting piston; the spring height adjusting piston can slide in the middle and is sealed up and down; a water regulating water nozzle is arranged on the side surface of the shell of the hydraulic pulse wave augmented injection device at the lower part of the pulse spring seat;
the steering piston, the valve ball pull rod, the pull rod adjusting piston and the valve ball return spring are arranged in a lower cavity of the shell of the hydraulic pulse wave injection device, and the steering piston and the valve ball separate the middle cavity and the lower cavity of the shell; the steering piston is arranged in the upper end of the lower chamber and can slide up and down under the action of pressure difference, the lower part of the steering piston is provided with a valve ball, a valve ball pull rod is arranged at the lower part of the valve ball and is integrated with the valve ball, the middle part of the valve ball pull rod is sleeved in a pull rod adjusting piston, and a valve ball return spring is arranged at the lower part of the valve ball pull rod; the steering piston is hollow, and the hollow cavity of the steering piston is discontinuously sealed by a valve ball to form communication and isolation between the upper cavity and the lower cavity of the steering piston; the lower part of the steering piston is provided with a valve ball seat, and the lower part of the valve ball is pressed on the valve ball seat at the lower part of the steering piston under the pressure action of water injection pressure difference;
the valve ball pull rod sequentially penetrates through the valve ball return spring, the pull rod adjusting piston and the bottom of the valve ball to form a whole;
and the bottom of the shell of the hydraulic pulse wave injection device is provided with an injection liquid inlet.
2. The hydraulic pulse wave injection device according to claim 1, wherein the spring height adjusting piston is provided with an adjusting piston O-ring, and the adjustment of the upper and lower positions of the adjusting piston O-ring can adjust the amplitude of the hydraulic pulse wave.
3. The hydraulic pulse wave injection device according to claim 1, wherein the steering piston is externally provided with a sealing ring.
4. The hydraulic pulse wave augmented injection device of claim 1, wherein the side of the casing of the hydraulic pulse wave augmented injection device at the lower part of the pulse spring seat is provided with water regulating nozzles, the water regulating nozzles are provided with 6 water regulating nozzles in an upper row and a lower row, the water regulating nozzles are transversely connected with the water outlet of the working barrel and penetrate through the outer-layer sleeve, and ceramic nozzles with different sizes are arranged in the water regulating nozzles to regulate single-layer water injection amount; the water regulating tap is transversely connected with the water outlet of the working barrel and penetrates through the outer sleeve.
5. The hydraulic pulse wave injection device according to claim 1, wherein a seal ring is arranged between the hydraulic pulse wave injector and the working cylinder, two water injection channels are established, and the bridge channel enables water to flow from the upper part of the hydraulic pulse wave injector to the lower water channel; the water outlet of the working barrel enables water flow to flow into a water flow channel of the oil collar cavity from the inside of the hydraulic pulse wave injection device.
6. The hydraulic pulse wave augmented injection device of claim 1, wherein the side of the working cylinder is provided with a water outlet, the water outlet is a water flow channel with an outer wall communicated with an inner wall, and the water flow channel is isolated from the bridge channel.
7. The hydraulic pulse wave boosting device according to claim 1, wherein the steering piston is hollow, and the hollow cavity of the steering piston is intermittently sealed by a valve ball, so that the middle chamber and the lower chamber of the steering piston are communicated and isolated.
8. The hydraulic pulse wave augmented injection device of claim 1, wherein multiple sets of hydraulic pulse wave augmented injection devices can be installed in the oil well casing to perform layered continuous uninterrupted hydraulic pulse wave plugging and augmented injection on the stratum.
9. The hydraulic pulse wave injection device according to claim 1, wherein the valve ball pull rod is arranged in the center of the hydraulic pulse wave injection device, the upper end of the valve ball pull rod is connected with the valve ball into a whole, when the steering piston and the valve ball move upwards at the top dead center, the valve ball pull rod pulls the valve ball away from the valve ball seat under the action of the pull rod ring, and the valve ball pull rod fall together until the pull rod ring reaches the bottom of the control cavity in the pull rod adjusting piston.
10. The hydraulic pulse wave injection device according to claim 1, wherein the pull rod ring is internally disposed in the hollow cavity of the pull rod adjusting piston, the pull rod ring moves upward to the upper part of the hollow cavity to separate the valve ball from the valve ball seat, the pull rod and the valve ball fall to the bottom of the hollow cavity, and when the steering piston reaches a downward point, the valve ball enters the valve ball seat to seal the upward chamber under the action of the pull rod ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920897644.3U CN210134876U (en) | 2019-06-14 | 2019-06-14 | Hydraulic pulse wave augmented injection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920897644.3U CN210134876U (en) | 2019-06-14 | 2019-06-14 | Hydraulic pulse wave augmented injection device |
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| CN210134876U true CN210134876U (en) | 2020-03-10 |
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| CN201920897644.3U Active CN210134876U (en) | 2019-06-14 | 2019-06-14 | Hydraulic pulse wave augmented injection device |
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| CN (1) | CN210134876U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107258A (en) * | 2019-06-14 | 2019-08-09 | 南京聚源隆能源科技有限公司 | A kind of waterpower pulse wave augmented injection device |
| CN112360415A (en) * | 2020-11-10 | 2021-02-12 | 中国科学院武汉岩土力学研究所 | Rotation type pressure pulse converter and hydraulic fracturing priming device |
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2019
- 2019-06-14 CN CN201920897644.3U patent/CN210134876U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107258A (en) * | 2019-06-14 | 2019-08-09 | 南京聚源隆能源科技有限公司 | A kind of waterpower pulse wave augmented injection device |
| CN110107258B (en) * | 2019-06-14 | 2024-04-02 | 南京聚源隆能源科技有限公司 | Hydraulic pulse wave injection increasing device |
| CN112360415A (en) * | 2020-11-10 | 2021-02-12 | 中国科学院武汉岩土力学研究所 | Rotation type pressure pulse converter and hydraulic fracturing priming device |
| CN112360415B (en) * | 2020-11-10 | 2021-11-19 | 中国科学院武汉岩土力学研究所 | Rotation type pressure pulse converter and hydraulic fracturing priming device |
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