A fracturing apparatus

Abstract

The application relates to the technical field of oil and gas exploitation equipment, and particularly discloses a fracturing equipment which comprises a first mounting bin mounted on a main body of an offshore oil and gas platform, the inside of the first mounting bin is provided with a movable support table, and a first spring is connected between the movable support table and the first mounting bin. The inside of the first mounting bin is provided with a movable plate, the movable plate is provided with a support column, the support column can support a first piston rod when in use, the inside space size of a main pipe piece remains constant, when the shaking degree is too large, the mounting block will be shaken transversely to make the first piston rod and the support column staggered with each other, the support of the first piston rod is released, the excessive pressure generated by the shaking in the main pipe piece drives the first piston rod to move downwards, a certain pressure release space is provided, and the inside pressure of the main pipe piece and the pipelines connected with the main pipe piece is prevented from being too large to cause insufficient safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of offshore oil and gas exploitation equipment, in particular to a fracturing equipment. BACKGROUND

[0002] Oil and gas resources are one of the main energy sources in modern society, and various large equipment is needed to cooperate in the process of oil and gas resource exploitation. The fracturing equipment is one of them. One of the common ways to increase oil and gas production is to implement fracturing on the formation through the fracturing equipment. A large amount of fracturing fluid is sent into the well at high pressure to press the formation open, and the support particles in the fracturing fluid are squeezed into the fracture to ensure that the fracture remains pressed open, so that subsequent oil and gas can smoothly enter the well space, thereby achieving the purpose of increasing production.

[0003] The existing fracturing equipment is used on the offshore oil and gas exploitation platform most of the time, but the offshore oil and gas exploitation platform is limited by the use environment and is often supported by floating wood during use. Therefore, it is inevitable to shake due to factors such as ocean waves during use. At present, the main pipe and the well part of the fracturing equipment are often connected by flexible pipes to avoid damage to the pipe due to shaking during use. However, in actual application, serious shaking can cause surging, water hammer and other phenomena in the pipe, and the flexible pipe itself can also deform to a certain extent, causing the pressure inside the overall pipe to change greatly. The great change in the pressure inside the pipe can seriously affect the overall production safety, especially when the pressure suddenly increases, which can cause the equipment itself to break or the formation to be suddenly and greatly fractured, causing the entire formation to be in an unstable state. SUMMARY

[0004] The purpose of the present application is to provide a fracturing equipment to solve the problem of insufficient safety of the existing fracturing equipment when used on the offshore oil and gas platform.

[0005] The purpose of the present application can be achieved by the following technical solution:

[0006] A fracturing equipment comprising a first installation bin installed on the main body of an offshore oil and gas platform, characterized in that the inside of the first installation bin is provided with a movable support table, and a first spring is connected between the movable support table and the first installation bin, the top of the movable support table is provided with a second installation bin, and the top of the second installation bin is provided with a main pipe, one end of the main pipe is communicated with a first flexible pipe, both ends of the top of the second installation bin are uniformly provided with fracturing pumps, the output end of the fracturing pump is communicated with the main pipe through a connecting pipe, and the input end of the fracturing pump is communicated with a second flexible pipe.

[0007] The bottom of the outer wall of the main pipe is fixedly provided with a mounting block, a first mounting groove is formed in the bottom of the mounting block, a containing hole is formed in the top of the first mounting groove, a through hole is reserved in the top of the containing hole, and a reserved chamber is reserved in the mounting block and communicates with the through hole and the main pipe;

[0008] A first piston rod is arranged in the reserved chamber, a second spring is connected between the first piston rod and the bottom of the reserved chamber, and a movable mechanism for supporting the first piston rod is arranged in the first mounting groove;

[0009] A rubber capsule is arranged on the inner side wall of the containing hole, and a second mounting groove is formed in one side of the mounting block.

[0010] As a further scheme of the present application, the movable mechanism comprises a movable plate arranged in the first mounting groove, a third spring is connected between the movable plate and the inner side wall of the first mounting groove, a supporting column is arranged at the middle position of the top of the movable plate, and a counterweight is fixed to the bottom of the movable plate.

[0011] As a further scheme of the present application, the supporting column is integrally made with the movable plate, and the central axis of the supporting column coincides with the central axis of the first piston rod.

[0012] As a further scheme of the present application, hydraulic cylinders are arranged on both sides of the bottom of the reserved chamber, and a gap is reserved between the top end of the hydraulic cylinder and the first piston rod.

[0013] As a further scheme of the present application, a disc extrusion block is arranged on the outer side of the bottom end of the first piston rod, and a ball is arranged at the bottom end of the first piston rod.

[0014] As a further scheme of the present application, a gap is reserved between the disc extrusion block and the inner side wall of the containing hole, and the central axis of the disc extrusion block coincides with the central axis of the rubber capsule.

[0015] As a further scheme of the present application, a hydraulic oil storage bin is arranged in the second mounting groove and communicates with the inner cavity of the rubber capsule, a second piston rod penetrates through the inner side of the hydraulic oil storage bin away from the rubber capsule, and a fourth spring is connected between the second piston rod and the hydraulic oil storage bin.

[0016] As a further scheme of the present application: the inner bottom of the second mounting groove is provided with a mounting plate, a special-shaped hole is formed in one side of the mounting plate, a mounting hole for mounting a pressing type stop knob is formed in the inner top of the special-shaped hole away from one side of the rubber capsule, a damping block is arranged in the special-shaped hole, limit grooves are formed in the bottom of the damping block on both sides, a third mounting groove is formed in the bottom of the special-shaped hole, and a wedge-shaped block is arranged in the third mounting groove.

[0017] As a further scheme of the present application: the pressing type stop knob is electrically connected with the fracturing pump, and the height of the pressing type stop knob is greater than the depth of the mounting hole.

[0018] As a further scheme of the present application: a fixed plate is mounted on the inner top of the second mounting groove away from one side of the rubber capsule, and an electric push rod is mounted on the side of the fixed plate close to the rubber capsule.

[0019] The present application has the following beneficial effects:

[0020] (1) The inner part of the first mounting groove is provided with a movable plate, and a support column is arranged on the movable plate. In use, the support column can support the first piston rod, and the inner space of the main pipe is kept constant. When the shaking degree is too large, the mounting block will be shaken transversely, so that the first piston rod and the support column are misaligned, the support of the first piston rod is released, and the excessive pressure generated by the shaking in the main pipe will drive the first piston rod to move downward, thereby providing a certain pressure release space, and avoiding the safety problem caused by the excessive pressure in the main pipe and the pipelines connected thereto.

[0021] (2) The first mounting bin and the second mounting bin are connected through the movable support table and the first spring, so that when shaking occurs, there is a certain elastic movement space between the second mounting bin and the main body of the offshore oil and gas platform, and at the same time, the first spring will deform to consume the energy of the shaking, thereby reducing the influence of the shaking on the main pipe.

[0022] (3) The movable plate and the mounting block are connected through the third spring, and the bottom of the movable plate is provided with a counterweight, so that when the second mounting bin shakes, the movable plate will slow down the shaking amplitude of the second mounting bin due to gravity and its own stability, and the energy is consumed through the deformation of the third spring, thereby further reducing the influence of the shaking on the main pipe.

[0023] (4) The first piston rod is provided with a disc extrusion block, and the accommodating hole is provided with a rubber capsule, when the support column and the first piston rod are dislocated due to the excessively large shaking range, the disc extrusion block can fully extrude the rubber capsule, the hydraulic oil in the rubber capsule is extruded and delivered to the inside of the hydraulic oil storage bin, the second piston rod pushes the damping block to press the press-off switch, so that the multiple fracturing pumps are automatically stopped, the pressure in the main pipe is still continuously increased under the condition that the staff cannot manually stop the machine in time in the extreme shaking condition, and the safety in the use process is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0024] The application will be further described below in combination with the drawings.

[0025] Figure 1 is a main view structural schematic diagram of the application;

[0026] Figure 2 is a main view structural schematic diagram of the application;

[0027] Figure 3 is an enlarged schematic diagram of A in the application; Figure 2

[0028] Figure 4 is a side view structural schematic diagram of the application;

[0029] Figure 5 is a main view structural schematic diagram of the first piston rod in the application;

[0030] Figure 6 is a main view structural schematic diagram of the damping block in the application;

[0031] Figure 7 is a main view structural schematic diagram of the movable plate in the application;

[0032] Figure 8 is a main view structural schematic diagram of the rubber capsule in the application.

[0033] ​In the figure: 1, offshore oil and gas platform main body; 2, first installation warehouse; 3, movable support table; 4, first spring; 5, second installation warehouse; 6, main pipe; 7, first flexible pipe; 8, fracturing pump; 9, connecting pipe; 10, second flexible pipe; 11, installation block; 12, first installation slot; 13, containing hole; 14, through hole; 15, reserved chamber; 16, first piston rod; 17, second spring; 18, movable plate; 19, third spring; 20, support column; 21, counterweight; 22, hydraulic cylinder; 23, rubber capsule; 24, disc extrusion block; 25, ball; 26, second installation slot; 27, hydraulic oil storage warehouse; 28, second piston rod; 29, fourth spring; 30, mounting plate; 31, special-shaped hole; 32, mounting hole; 33, pressing type stop key; 34, damping block; 35, limiting groove; 36, third installation slot; 37, wedge block; 38, fifth spring; 39, fixed plate; 40, electric push rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] Embodiment one:

[0036] Please refer to Figures 1-5 and Figure 7 , a fracturing device, comprising a first installation warehouse 2 installed on the offshore oil and gas platform main body 1, the first installation warehouse 2 is the same as the existing similar offshore oil and gas exploitation platform supported by floating wood;

[0037] The inside of the first installation warehouse 2 is provided with a movable support table 3, and the movable support table 3 is connected with the first installation warehouse 2 through the first spring 4, the top of the movable support table 3 is provided with the second installation warehouse 5, and the top of the second installation warehouse 5 is provided with the main pipe 6, the movable support table 3 and the first installation warehouse 2 are slidingly connected, and the movable support table 3 and the inner wall of the first installation warehouse 2 are all left with space, and the movable support table 3 and the inner wall of the first installation warehouse 2 are all connected through a plurality of first springs 4, so that when the offshore oil and gas platform main body 1 shakes, the influence on the movable support table 3, the second installation warehouse 5 and the main pipe 6 thereon will be reduced, and the first spring 4 will deform correspondingly and consume the shaking energy;

[0038] One end of the main pipe 6 is communicated with a first flexible pipe 7, two ends of the top of the second installation bin 5 are uniformly installed with fracturing pumps 8, the output end of the fracturing pump 8 is communicated with the main pipe 6 through the connecting pipe 9, and the input end of the fracturing pump 8 is communicated with the second flexible pipe 10, the first flexible pipe 7 is communicated with the wellhead sealing part in the sea, and the second flexible pipe 10 is communicated with the fracturing fluid supply equipment, in use, a plurality of fracturing pumps 8 simultaneously and uniformly pressurize and inject fracturing fluid into the inside of the main pipe 6, the fracturing fluid in the main pipe 6 enters the well through the first flexible pipe 7, realizes continuous stable pressurization to the formation, makes the formation crack more stably, and increases the subsequent oil and gas production capacity, which is the same as the existing similar fracturing equipment;

[0039] The bottom of the outer wall of the main pipe 6 is fixed with an installation block 11, the bottom of the installation block 11 is provided with a first installation slot 12, and the top of the first installation slot 12 is provided with a containing hole 13, the top of the inside of the containing hole 13 is reserved with a through hole 14, the inside of the installation block 11 is reserved with a reserved cavity 15 communicated with the through hole 14 and the main pipe 6, the installation block 11 is processed by forging, and the first installation slot 12, the containing hole 13, the through hole 14 and the reserved cavity 15 are formed in the process of forging, so as to ensure the strength of the installation block 11 in the subsequent use process;

[0040] The inside of the reserved cavity 15 is provided with a first piston rod 16, and the first piston rod 16 is connected with the bottom of the reserved cavity 15 through a second spring 17, the inside of the first installation slot 12 is provided with a movable mechanism for supporting the first piston rod 16, the movable mechanism includes a movable plate 18, the movable plate 18 is arranged in the inside of the first installation slot 12, and the movable plate 18 is connected with the inner side wall of the first installation slot 12 through a third spring 19, a supporting column 20 is installed at the middle position of the top of the movable plate 18, and a counterweight 21 is fixed at the bottom of the movable plate 18, the first piston rod 16 is connected with the installation block 11 in an up-down sliding mode, the movable plate 18 is connected with the installation block 11 in a transverse sliding mode, and the movable plate 18 is left with a gap around the inner wall of the first installation slot 12, the movable plate 18 can slide in multiple directions in the inside of the first installation slot 12, in use, when the second installation bin 5 shakes, the movable plate 18 does not connect with the installation block 11 together, and the weight of the counterweight 21 is heavy, so that the movable plate 18 forms a stabilizer relative to the installation block 11, the movable plate 18 hinders the shaking of the installation block 11 through its own stability, and the third spring 19 deforms correspondingly to consume the shaking energy, thereby reducing the influence of shaking on the installation block 11, and further increasing the stability of the main pipe 6 on the second installation bin 5;

[0041] When the offshore oil and gas platform main body 1 is no longer suitable for operation due to large amplitude shaking caused by extreme weather and the like, the relative displacement between the mounting block 11 and the movable plate 18 also increases until the first piston rod 16 is vertically misaligned with the support column 20. At this time, the support of the first piston rod 16 by the support column 20 is removed, and the first piston rod 16 is elastically supported by the second spring 17 after moving downward by an end distance. In the subsequent shaking process of the offshore oil and gas platform main body 1, when surging and water hammer in the main pipe 6 and the parts connected thereto cause a sudden increase in pressure, part of the fracturing fluid in the main pipe 6 will enter the inside of the reserved chamber 15, extruding the first piston rod 16 downward to avoid the safety hazards of equipment damage caused by excessive pressure in the main pipe 6 or sudden large-scale fracturing of the formation, and the corresponding deformation of the second spring 17 consumes energy;

[0042] The support column 20 and the movable plate 18 are integrally made, and the central axis of the support column 20 coincides with the central axis of the first piston rod 16 to ensure the connection strength between the movable plate 18 and the support column 20 during use. Meanwhile, in the normal state, the rod-shaped part of the support column 20 and the first piston rod 16 can vertically coincide with each other, and the support column 20 can support the first piston rod 16;

[0043] The two sides of the bottom of the inside of the reserved chamber 15 are both provided with hydraulic cylinders 22, and a gap is left between the top end of the hydraulic cylinder 22 and the first piston rod 16. The hydraulic cylinder 22 is controlled by a controller. When the large-scale shaking is over and the operation is resumed, the staff can control the output part of the hydraulic cylinder 22 to move upward by the controller, and push the first piston rod 16 to the initial position. Then, the movable plate 18 is restored to the initial position under the action of the third spring 19, and supports the first piston rod 16 again;

[0044] It should be noted that since the movable support table 3 and the first mounting bin 2 are in sliding connection, and the weight of the counterweight block 21 is heavy, when the offshore oil and gas platform main body 1 shakes, the movable support table 3 and the parts thereon will also lag the shaking of the offshore oil and gas platform main body 1 due to their own stability and not being fixedly connected with the first mounting bin 2. Therefore, the movable support table 3 and the second mounting bin 5 thereon also act as stabilizers to stabilize the offshore oil and gas platform main body 1 as a whole.

[0045] Further, the counterweight block 21 can be replaced by a gyroscope stabilizer with autonomous rotation function to provide its own stability.

[0046] Embodiment 2

[0047] Based on the above embodiment 1, please refer to Figures 1-6 and Figure 8As shown, the inner side wall of the accommodating hole 13 is provided with a rubber capsule 23, and the side of the mounting block 11 is provided with a second mounting groove 26. The rubber capsule 23 is made of corrosion-resistant rubber material, and the inner cavity of the rubber capsule 23 is filled with hydraulic oil;

[0048] The outer side of the first piston rod 16 close to the bottom end is provided with a disc extrusion block 24, and the bottom end of the first piston rod 16 is provided with a ball 25. The ball 25 can ensure that the mounting block 11 can shake independently of the movable plate 18 during shaking. In application, the ball 25 can be provided in multiple groups to ensure the supporting effect.

[0049] The disc extrusion block 24 and the inner side wall of the accommodating hole 13 leave a gap, and the central axis of the disc extrusion block 24 coincides with the central axis of the rubber capsule 23, so that the disc extrusion block 24 does not hinder the dislocation and up-down movement of the first piston rod 16 and the support column 20.

[0050] The second mounting groove 26 is provided with a hydraulic oil storage bin 27 close to the rubber capsule 23, and the hydraulic oil storage bin 27 is in communication with the inner cavity of the rubber capsule 23. The second piston rod 28 penetrates through the inner side of the hydraulic oil storage bin 27 away from the rubber capsule 23, and the second piston rod 28 and the hydraulic oil storage bin 27 are connected by a fourth spring 29. When the support column 20 and the first piston rod 16 are dislocated due to large shaking, the disc extrusion block 24 will extrude the rubber capsule 23 under the action of gravity and the pressure in the main pipe 6, so that the hydraulic oil in the rubber capsule 23 is extruded and transported to the inside of the hydraulic oil storage bin 27, and the second piston rod 28 moves away from the rubber capsule 23.

[0051] The inner bottom of the second installation groove 26 is provided with an installation plate 30, one side of the installation plate 30 is provided with a special-shaped hole 31, the inner top of the special-shaped hole 31 is provided with an installation hole 32 for installing a pressing type stop switch 33, the inside of the special-shaped hole 31 is provided with a damping block 34, both sides of the bottom of the damping block 34 are provided with limiting grooves 35, the inside of the bottom of the special-shaped hole 31 is provided with a third installation groove 36, the third installation groove 36 is provided with a wedge-shaped block 37, the fifth spring 38 is connected between the wedge-shaped block 37 and the installation plate 30, the pressing type stop switch 33 is electrically connected with the fracturing pump 8, the height of the pressing type stop switch 33 is greater than the depth of the installation hole 32, the damping block 34 is slidingly connected with the installation plate 30, the wedge-shaped block 37 and the third installation groove 36 form a relative sliding structure, the top of the damping block 34 is arc-shaped near the edge of the pressing type stop switch 33, when a large amplitude shaking occurs and the disc extrusion block 24 extrudes the rubber capsule 23 to a sufficient degree so that the hydraulic oil in the rubber capsule 23 is extruded into the inside of the hydraulic oil storage bin 27, the second piston rod 28 extrudes the damping block 34, at this time, the edges in the limiting grooves 35 extrude the inclined edge part of the wedge-shaped block 37, so that the wedge-shaped block 37 is extruded and moved into the third installation groove 36, so that under the action of sufficient pressure, the damping block 34 can move horizontally, the arc-shaped edge on the top of the damping block 34 can press the elastic part of the pressing type stop switch 33 upward, at the same time, the wedge-shaped block 37 is aligned with the other limiting grooves 35, the wedge-shaped block 37 is inserted into the limiting grooves 35 under the elastic action of the fifth spring 38, so that the damping block 34 can be kept at the position of pressing the elastic part of the pressing type stop switch 33 without sufficient external force, a plurality of fracturing pumps 8 are in a shutdown state, which avoids that the staff cannot shut down the fracturing pump 8 in time under the condition of a large amplitude shaking that is not suitable for operation, causing a safety hazard that the fracturing pump 8 continuously pressurizes the main pipe 6, and the damping block 34 is always kept at the position during the subsequent shaking process;

[0052] The inner top of the second installation groove 26 is provided with a fixed plate 39, the fixed plate 39 is provided with an electric push rod 40 near the rubber capsule 23, the output end part of the electric push rod 40 is aligned with the damping block 34, and the output end part of the second flexible pipeline 10 can be inserted into the inside of the special-shaped hole 31, so that when the large amplitude shaking ends and the operation is resumed, the electric push rod 40 can be controlled to push the damping block 34 to the initial position of not pressing the pressing type stop switch 33, and the forced shutdown of the fracturing pump 8 is released;

[0053] It should be noted that the elasticity of the fourth spring 29 is smaller than the force required for the elastic deformation of the rubber capsule 23 itself, when the rubber capsule 23 is extruded by the disc extrusion block 24, the hydraulic oil in the rubber capsule 23 can be delivered to the inside of the hydraulic oil storage bin 27 under the action of the extrusion force and drive the second piston rod 28 to move instead of the self-occurring other position greater degree of deformation;

[0054] Further, the pressing type stop key 33 can be in the form of an elastic recovery circuit breaker, so that when the pressing type stop key 33 is pressed, the multiple sets of fracturing pumps 8 can be stopped, and the subsequent workers can further close the on-off switch of the fracturing pump 8. After the shaking is completed, the damping block 34 releases the extrusion of the pressing type stop key 33, and after the elastic recovery of the pressing type stop key 33, the fracturing pump 8 will not restart immediately, and the workers need to decide the reworking time through the on-off switch on the fracturing pump 8.

[0055] The working principle of the present application: the device is powered by an external power supply or a battery, the fracturing pump 8, the hydraulic cylinder 22 and the electric push rod 40 are controlled and used by the controller, the first flexible pipeline 7 is in communication with the well mouth sealing part in the sea, the second flexible pipeline 10 is in communication with the fracturing fluid supply equipment, and the multiple sets of fracturing pumps 8 simultaneously and uniformly pressurize and inject fracturing fluid into the inside of the main pipe 6, realizing the above-mentioned fracturing task.

[0056] In the use process, when the offshore oil and gas platform body 1 appears small amplitude shaking, the movable support table 3 is not directly fixedly connected with the first mounting bin 2, and the movable support table 3 is connected with the first mounting bin 2 through the first spring 4, so that the first mounting bin 2 cannot completely transmit the shaking to the movable support table 3, the movable support table 3 can reduce the influence due to its own gravity stability, and the movable support table 3 can counteract the shaking of the offshore oil and gas platform body 1 to a certain extent due to the weight of the counterweight block 21, thereby reducing the shaking of the offshore oil and gas platform body 1, and when the second mounting bin 5 shakes due to the shaking of the offshore oil and gas platform body 1, the counterweight block 21 can also delay the shaking of the second mounting bin 5 due to the gravity, the stability and the elasticity of the third spring 19, thereby increasing the stability of the main pipe 6 on the second mounting bin 5, avoiding that the shaking amplitude of the main pipe 6 is too large, and causing that the deformation of the first flexible pipeline 7 is too large and the surge, water hammer and other phenomenon pressure change amplitude in the main pipe 6 are too large;

[0057] When the offshore oil and gas platform main body 1 is shaken too much due to extreme weather and the like, the shaking amplitude of the second installation bin 5 cannot be reduced to a safe range, the relative lateral movement amplitude between the second installation bin 5 and the movable plate 18 becomes larger, until the first piston rod 16 is dislocated upward and downward with the support column 20, at this time, the support column 20 releases the support of the first piston rod 16, the first piston rod 16 is lowered by a distance, and is supported by the second spring 17, in the subsequent shaking process, when the surge, water hammer and the like occur in the first piston rod 16, the first piston rod 16 can continue to move downward to provide a certain elastic space, so as to avoid that the first piston rod 16 and the part connected therewith have a too large internal pressure and have a safety hazard;

[0058] When the first piston rod 16 is dislocated upward and downward with the support column 20, and the first piston rod 16 is lowered by a distance, the disc extrusion block 24 can extrude the rubber capsule 23, so that the hydraulic oil in the rubber capsule 23 is extruded and transported to the inside of the hydraulic oil storage bin 27, the second piston rod 28 extrudes the damping block 34 by a distance to the direction close to the electric push rod 40, the damping block 34 extrudes the elastic part of the pressing type stop button 33, and in the subsequent process, the damping block 34 remains at the position without the action of the corresponding external force, so that the plurality of fracturing pumps 8 are stopped, the fracturing pump 8 is prevented from continuing to pressurize the main pipe 6, and the safety is further ensured;

[0059] When the shaking is over and the operation continues, the output end of the control hydraulic cylinder 22 moves upward and pushes the first piston rod 16 to the initial position, the movable plate 18 and the counterweight 21 are reset under the elastic action of the third spring 19, the output end of the control hydraulic cylinder 22 is lowered to the initial state, the output end of the electric push rod 40 pushes the damping block 34 to the initial position, and the pressing type stop button 33 is reset under the elastic action of itself, so that when the subsequent large amplitude shaking occurs again, the above process can still be realized.

[0060] The above describes one embodiment of the present application in detail, but the content described is only a preferred embodiment of the present application, and cannot be considered as limiting the implementation range of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the patent coverage range of the present application.

Claims

1. A fracturing device, comprising a first installation compartment (2) installed on the main body (1) of an offshore oil and gas platform, characterized in that, The first installation chamber (2) is provided with a movable support platform (3), and a first spring (4) is connected between the movable support platform (3) and the first installation chamber (2). A second installation chamber (5) is installed on the top of the movable support platform (3), and a main pipe component (6) is installed on the top of the second installation chamber (5). One end of the main pipe component (6) is connected to a first flexible pipe (7). Fracturing pumps (8) are evenly installed at both ends of the top of the second installation chamber (5). The output end of the fracturing pump (8) is connected to the main pipe component (6) through a connecting pipe (9), and the input end of the fracturing pump (8) is connected to a second flexible pipe (10). The bottom of the outer wall of the main component (6) is fixed with an installation block (11). The bottom of the installation block (11) is provided with a first installation groove (12), and the top of the first installation groove (12) is provided with a receiving hole (13). The top of the receiving hole (13) is reserved with a through hole (14). The interior of the installation block (11) is reserved with a reserved cavity (15) that communicates with the through hole (14) and the main component (6). The reserved chamber (15) is provided with a first piston rod (16), and a second spring (17) is connected between the first piston rod (16) and the bottom of the reserved chamber (15). The first mounting groove (12) is provided with an active mechanism for supporting the first piston rod (16). A rubber bladder (23) is installed on the inner wall of the receiving hole (13), and a second mounting groove (26) is provided on one side of the mounting block (11). The movable mechanism includes a movable plate (18), which is disposed inside the first mounting groove (12), and a third spring (19) is connected between the movable plate (18) and the inner side wall of the first mounting groove (12). A support column (20) is installed at the middle position of the top of the movable plate (18), and a counterweight (21) is fixed at the bottom of the movable plate (18). A hydraulic oil storage chamber (27) is installed inside the second mounting groove (26) on the side near the rubber bladder (23), and the hydraulic oil storage chamber (27) is connected to the inner cavity of the rubber bladder (23). A second piston rod (28) passes through the side of the hydraulic oil storage chamber (27) away from the rubber bladder (23), and a fourth spring (29) is connected between the second piston rod (28) and the hydraulic oil storage chamber (27). The second mounting groove (26) has a mounting plate (30) installed at its inner bottom, and a shaped hole (31) is provided on one side of the mounting plate (30). The top of the shaped hole (31) away from the rubber bladder (23) has a mounting hole (32) for installing a press-type stop button (33). A damping block (34) is provided inside the shaped hole (31), and a limit groove (35) is provided on both sides of the bottom of the damping block (34). A third mounting groove (36) is provided at the bottom of the shaped hole (31), and a wedge block (37) is provided inside the third mounting groove (36). A fifth spring (38) is connected between the wedge block (37) and the mounting plate (30).

2. The fracturing equipment according to claim 1, characterized in that, The support column (20) and the movable plate (18) are manufactured as a single unit, and the central axis of the support column (20) coincides with the central axis of the first piston rod (16).

3. The fracturing equipment according to claim 1, characterized in that, Hydraulic cylinders (22) are installed on both sides of the bottom of the reserved chamber (15), and there is a gap between the top of the hydraulic cylinder (22) and the first piston rod (16).

4. The fracturing equipment according to claim 1, characterized in that, The first piston rod (16) has a disc compression block (24) installed on the outer side near the bottom end, and a ball bearing (25) is provided at the bottom end of the first piston rod (16).

5. A fracturing device according to claim 4, characterized in that, There is a gap between the disc extrusion block (24) and the inner wall of the receiving hole (13), and the central axis of the disc extrusion block (24) coincides with the central axis of the rubber bladder (23).

6. The fracturing equipment according to claim 1, characterized in that, The press-type shut-off button (33) is electrically connected to the fracturing pump (8), and the height of the press-type shut-off button (33) is greater than the depth of the mounting hole (32).

7. The fracturing equipment according to claim 1, characterized in that, A fixing plate (39) is installed on the side of the second mounting groove (26) away from the rubber bladder (23), and an electric push rod (40) is installed on the side of the fixing plate (39) close to the rubber bladder (23).

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