Anti-vibration ball seat suitable for compressed gas energy storage injection-production working condition

Abstract

The invention belongs to the technical field of compressed gas energy storage well completion tools, and discloses an anti-vibration ball seat suitable for compressed gas energy storage injection and production working conditions, the anti-vibration ball seat comprises a center cylinder, a sliding piston, a sleeve and a setting assembly, and the center cylinder is provided with a pressure transmission hole; the sliding piston is connected to the outer side of the center cylinder in a sleeving mode. A first annulus communicating with the pressure transmitting hole is formed between the sliding piston and the center cylinder. The sleeve is located below the sliding piston, a second annulus with an opening in the upper end is formed between the sleeve and the center cylinder, the sleeve is provided with a centralizing hole, a movable centralizing ball is correspondingly embedded in the centralizing hole, and the sliding piston can abut against the centralizing ball under the action of external force so that the centralizing ball can protrude out of the sleeve outwards; the setting assembly is connected to the lower end of the center cylinder. After setting is conducted, increased pressure pushes the sliding piston to move downwards so as to abut against the centralizing ball to protrude out of the sleeve, the rigid centralizing effect is achieved through rigid contact between the centralizing ball and an external shaft sleeve, and vibration caused by fluid large-flow injection and production can be greatly relieved or eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of compressed gas energy storage completion tools, and in particular to an anti-vibration ball seat suitable for compressed gas energy storage injection and production working conditions. Background Art

[0002] The use of renewable energy such as solar energy and wind energy to generate electricity is an important part of the current development and utilization of clean energy. However, solar energy and wind energy generation are greatly affected by natural conditions and have strong volatility. In addition, the actual electricity consumption process at the user end also has strong volatility. Energy storage technology is an important means to solve the contradiction between the above-mentioned "more peaks and fewer valleys" in electricity consumption and "fewer peaks and more valleys" in power supply. For example, compressed air energy storage developed in recent years as a large-capacity, high-efficiency energy storage technology has become a research hotspot in the field of energy storage.

[0003] During the construction of compressed air energy storage projects, larger wellbores are generally used to ensure that the gas flow rate of a single injection and production can meet the requirements of energy storage and release, while minimizing the number of drillings and reducing the overall cost. Compressed gas energy storage has the advantages of high injection and production frequency (multiple times a day), large injection and production volume (25-35×10 4 m 3 / h). Under this working condition, high-speed fluid can easily cause the injection and production string to vibrate, thus affecting the safety and life of the string. Summary of the invention

[0004] The purpose of the present invention is to provide a vibration-resistant ball seat suitable for compressed gas energy storage injection and production conditions, which utilizes the seating pressure to achieve rigid righting, and can greatly eliminate or alleviate the vibration caused by high-frequency and high-flow injection and production of compressed gas energy storage.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] Anti-vibration ball seat suitable for compressed gas energy storage injection and production conditions, including:

[0007] A central tube, wherein a pressure transmission hole is provided on the central tube;

[0008] A sliding piston, wherein the sliding piston is sleeved on the outer side of the central tube, a first annular space which is closed up and down is provided between the sliding piston and the central tube, the first annular space is connected to the pressure transmission hole, and the sliding piston can move along the axial direction of the central tube under the action of an external force;

[0009] A sleeve, wherein the sleeve is sleeved on the outer side of the central tube, the sleeve is located below the sliding piston, a second annular space with an upper opening is provided between the sleeve and the central tube, the sleeve is provided with a plurality of straightening holes along its circumference, each straightening hole is correspondingly embedded with a movable straightening ball, and the sliding piston can push against the straightening ball through the opening of the second annular space under the action of an external force, so that the straightening ball protrudes outward from the sleeve;

[0010] A sealing assembly is connected to the lower end of the center tube so as to be able to seal the center tube.

[0011] Preferably, a thrust cylinder is provided between the sleeve and the sliding piston, the thrust cylinder is sleeved on the outside of the center cylinder, the upper end of the thrust cylinder is connected to the sliding piston, and the lower end of the thrust cylinder can extend into the second annulus through the opening to push against the straightening ball.

[0012] Preferably, a slope is provided at the lower end of the thrust cylinder so that the slope abuts against the straightening ball.

[0013] Preferably, shear pins are provided between the thrust cylinder and the upper end of the sleeve, and between the center cylinder and the lower end of the sleeve.

[0014] Preferably, a limiting component is provided between the end of the thrust cylinder away from the righting ball and the center cylinder, and the limiting component can limit the thrust cylinder from being away from the righting ball.

[0015] Preferably, the limiting assembly includes a locking ring, which is sleeved on the center tube, and mutually matching anti-retraction teeth are arranged between the locking ring and the center tube, the upper end of the locking ring abuts against the sliding piston, and the lower end of the locking ring abuts against the thrust tube.

[0016] Preferably, the lower end of the locking ring is located between the center tube and the thrust tube; the limiting assembly also includes a retaining ring, which is sleeved on the center tube, and the upper end of the retaining ring abuts against the sliding piston, and the inner wall of the retaining ring is provided with an abutting surface that cooperates with the locking ring.

[0017] Preferably, the setting assembly includes an adjusting nipple, which is arranged at the lower end of the center tube, and a ball seat is arranged in the adjusting nipple, and the ball seat is provided with a through cavity so as to limit the setting ball; a locking assembly is arranged between the ball seat and the adjusting nipple, and the locking assembly has a locked state and an unlocked state, and the ball seat is connected to the adjusting nipple when in the locked state, and is disconnected from the adjusting nipple when in the unlocked state.

[0018] Preferably, the through cavity includes a first cavity and a second cavity, the first cavity is located above the second cavity, and the minimum passing dimension of the first cavity is greater than the minimum passing dimension of the second cavity.

[0019] Preferably, the locking assembly includes a ball seat sleeve and a connecting piece, the ball seat sleeve is located in the adjustment short section, the inner wall of the adjustment short section has a slot, the ball seat sleeve is provided with a placement hole corresponding to the slot, the connecting piece is inserted into the placement hole and passes through the slot to connect the ball seat sleeve and the adjustment short section, and the connecting piece can be detached from the slot under the action of external force; a limiting platform for limiting the ball seat is provided in the ball seat sleeve, and the limiting platform is located below the placement hole.

[0020] Beneficial effects of the present invention:

[0021] When sealing is performed, the pressure in the center tube increases and is transmitted to the first annulus through the pressure transmission hole, thereby pushing the sliding piston downward, causing the sliding piston to move downward to press against the righting ball in the righting hole, causing the righting ball to protrude out of the sleeve. The righting ball is in rigid contact with the external wellbore casing, thereby achieving a rigid righting effect, which can eliminate or greatly alleviate the vibration caused by high-frequency and high-flow injection and production of compressed gas energy storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of the anti-vibration ball seat of the present invention suitable for compressed gas energy storage injection and production conditions;

[0023] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 yes Figure 1 Enlarged view of point B in the middle;

[0025] Figure 4 It is a schematic diagram of the present invention in which the anti-vibration ball seat suitable for compressed gas energy storage injection and production conditions is placed in the wellbore casing.

[0026] In the figure:

[0027] 1. Center tube; 11. Pressure transmission hole; 12. First annulus; 2. Sliding piston; 3. Sleeve; 31. Second annulus; 4. Straightening ball; 5. Sealing assembly; 51. Adjusting nipple; 52. Sealing ball; 53. Ball seat housing; 54. Ball seat; 55. Limiting part; 6. Thrust cylinder; 7. Shear pin; 8. Limiting assembly; 81. Locking ring; 82. Retaining ring; 9. Locking assembly; 91. Ball seat sleeve; 92. Connecting piece; 93. Retaining ring; 94. Ball seat shear pin; 10. Upper joint; 20. Wellbore casing. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] like Figures 1 to 4As shown, the present invention provides an anti-vibration ball seat suitable for compressed gas energy storage injection and production conditions, which includes a center tube 1, a sliding piston 2, a sleeve 3 and a sealing assembly 5, the center tube 1 is provided with a pressure transmission hole 11; the sliding piston 2 is sleeved on the outside of the center tube 1, and a first annulus 12 closed up and down is provided between the sliding piston 2 and the center tube 1, the first annulus 12 is connected to the pressure transmission hole 11, and the sliding piston 2 can move along the axial direction of the center tube 1 under the action of external force; the sleeve 3 is sleeved on the outside of the center tube 1, the sleeve 3 is located below the sliding piston 2, and a second annulus 31 with an upper end opening is provided between the sleeve 3 and the center tube 1, the sleeve 3 is provided with a plurality of straightening holes along its circumference, and each straightening hole is correspondingly embedded with a movable straightening ball 4, the sliding piston 2 can push against the straightening ball 4 through the opening of the second annulus 31 under the action of external force, so that the straightening ball 4 protrudes outward from the sleeve 3; the sealing assembly 5 is connected to the lower end of the center tube 1 to be able to seal the center tube 1.

[0033] Through the above structure, when the sealing is carried out, the pressure in the center tube 1 increases, and is transmitted to the first annulus 12 through the pressure transmission hole 11, thereby pushing the sliding piston 2 downward to push against the straightening ball 4 located in the straightening hole, so that the straightening ball 4 protrudes outward from the sleeve 3, and the straightening ball 4 is in rigid contact with the external wellbore casing 20, thereby realizing a rigid straightening effect, which can eliminate or greatly alleviate the vibration caused by high-frequency and large-flow injection and production of compressed gas energy storage.

[0034] In some embodiments, the upper end of the center tube 1 is provided with an upper joint 10, which can be screwed with the center tube 1, so that the center tube 1 can be connected to the injection and production pipe string, and lowered to the well or raised to the well. In the current embodiment, the upper end of the sliding piston 2 can be limited to the center tube 1 or the upper joint 10, and the sliding piston 2 has a large diameter section and a small diameter section, and the large diameter section is located above the small diameter section. The large diameter section and the small diameter section form a top platform, and the first annulus 12 is located above the top platform, so that when the internal pressure is transmitted to the top platform, it can be pressed by the top platform to push the sliding piston 2 to move downward. In this embodiment, sealing rings are provided between the sliding piston 2 and the center tube 1, and between the sliding piston 2 and the upper joint 10. The sealing rings are located on the upper and lower sides of the first annulus 12 to avoid pressure relief in unexpected situations. In the current embodiment, a shear pin 7 is provided between the sliding piston 2 and the upper joint 10 to prevent the sliding piston 2 from moving downward in unexpected situations.

[0035] like Figure 1 and Figure 2As shown, in some embodiments, a thrust cylinder 6 is provided between the sleeve 3 and the sliding piston 2, and the thrust cylinder 6 is sleeved on the outer side of the center cylinder 1, and the upper end of the thrust cylinder 6 is connected to the sliding piston 2. The specific connection method is not limited, and it can be but not limited to screw connection. The lower end of the thrust cylinder 6 extends into the sleeve 3 through the upper end opening of the second annulus 31, so that the lower end of the thrust cylinder 6 is located above the straightening ball 4. When the sliding piston 2 moves downward, the thrust cylinder 6 is pushed downward, and then the thrust cylinder 6 is embedded between the straightening ball 4 and the center cylinder 1 to push against the straightening ball 4 mentioned above, so that the straightening ball 4 protrudes from the straightening hole. In the current embodiment, in order to prevent the thrust cylinder 6 from moving unexpectedly, the thrust cylinder 6 is connected to the sleeve 3 by a shear pin 7. After the thrust of the sliding piston 2 gradually increases, the shear pin 7 between the thrust cylinder 6 and the sleeve 3 can be sheared off, so that the thrust cylinder 6 moves downward.

[0036] In some embodiments, the lower end of the thrust cylinder 6 has an inclined surface, so that the thrust cylinder 6 can be more easily inserted between the straightening ball 4 and the center cylinder 1, and it is easier to push the straightening ball 4 outward.

[0037] In some embodiments, the straightening holes are evenly spaced around the circumference, so that the abutment can be uniform, further reducing the probability of shaking. It can be understood that the size of the straightening ball 4 is not larger than the size of the straightening hole, so as to prevent the straightening ball 4 from being pushed out of the straightening hole by the thrust cylinder 6. It should be noted here that before the thrust cylinder 6 abuts against the straightening ball 4, the straightening ball 4 does not protrude from the straightening hole, so that it can be lowered normally into the well to avoid interference.

[0038] like Figure 1 and Figure 2 As shown, in some embodiments, after the righting ball 4 completes the rigid righting and the setting assembly 5 is released from the setting, the central cylinder 1 is depressurized, causing the connected sliding piston 2 to also be depressurized. At this time, the reverse force exerted by the righting ball 4 on the thrust cylinder 6 will cause the thrust cylinder 6 to retreat. Based on the above situation, a limiting assembly 8 is provided between the end of the thrust cylinder 6 away from the righting ball 4 and the central cylinder 1, so as to limit the thrust cylinder 6 from being away from the righting ball 4 through the limiting assembly 8, thereby avoiding the loss of the rigid righting function in unexpected situations. Specifically, the limiting assembly 8 includes a locking ring 81, which is sleeved on the outside of the central cylinder 1 and is located between the central cylinder 1 and the thrust cylinder 6. The locking ring 81 and the central cylinder 1 are provided with mutually matching stop teeth. It should be noted here that the central cylinder 1 is provided with forward teeth, and the locking ring 81 is provided with reverse teeth. The upper end of the locking ring 81 abuts against the sliding piston 2, and the lower end of the locking ring 81 abuts against the thrust cylinder 6. That is to say, when the sliding piston 2 pushes the locking ring 81, the locking ring 81 can move downward through the anti-retraction teeth, and when the thrust cylinder 6 acts on the locking ring 81 after pressure relief, the reverse teeth and the forward teeth will abut against each other, and it cannot move upward through the anti-retraction teeth.

[0039] In the current embodiment, the lock ring 81 is C-shaped, so that it is convenient to install it on the center tube 1 and avoid the structure of the anti-retraction teeth from interfering with the installation of the lock ring 81. Based on the above C-shaped structure, when the sliding piston 2 above the lock ring 81 and the thrust cylinder 6 below the lock ring 81 apply force to it, it is easy to cause the lock ring 81 to deform outward, thereby causing the lock ring 81 to detach. In order to avoid the above problems, the lower end of the lock ring 81 is located between the center tube 1 and the thrust cylinder 6 to limit the outward expansion of the lock ring 81 through the thrust cylinder 6. Furthermore, a mutually matching abutting surface is provided between the lock ring 81 and the thrust cylinder 6, and the abutting surface on the thrust cylinder 6 faces the center tube 1 to further limit the lock ring 81. In addition, the limiting assembly 8 also includes a retaining ring 82, which is sleeved on the central tube 1, the upper end of the retaining ring 82 abuts against the sliding piston 2, and the lower end of the retaining ring 82 abuts against the locking ring 81, so that the retaining ring 82 is used for transfer, avoiding the setting of special-shaped parts, facilitating processing, and simplifying installation. Further, the inner side of the retaining ring 82 and the outer side of the locking ring 81 are also provided with the above-mentioned abutting surface, the abutting surface of the retaining ring 82 faces the central tube 1, and the retaining ring 82 abuts against the locking ring 81 in the direction of the abutting surface toward the central tube 1, so as to further limit the outward expansion of the locking ring 81.

[0040] like Figure 1 As shown, in some embodiments, a shear pin 7 is also provided between the lower ends of the center tube 1 and the sleeve 3. When the shear pin 7 between the center tube 1 and the sleeve 3 is broken, the center tube 1 and the sleeve 3 can move relative to each other. That is to say, during the recovery process, that is, the process of lifting the center tube 1, at this time, since the straightening ball 4 abuts against the external wellbore casing 20, the two limit the upward movement of the sleeve 3 under the action of friction. When the lifting force is increased, the shear pin 7 provided between the lower ends of the center tube 1 and the sleeve 3 will be cut off, and the sleeve 3 and the straightening ball 4 will simultaneously move downward relative to the center tube 1. At this time, the thrust tube 6 will be out of contact with the straightening ball 4, and the straightening ball 4 will be retracted and separated from the wellbore casing 20, releasing the rigid straightening, and then the lifting recovery can be continued.

[0041] like Figure 1 and Figure 3As shown, in some embodiments, the sealing assembly 5 includes an adjustment nipple 51, which is screwed to the lower end of the center tube 1, and the sealing assembly 5 also includes a ball seat shell 53, which is screwed to the adjustment nipple 51, and a ball seat 54 is arranged in the ball seat shell 53, and the ball seat 54 is provided with a through cavity, and the through cavity can accommodate the sealing ball 52 to achieve sealing. In the current embodiment, the through cavity is divided into a first cavity and a second cavity arranged up and down, the first cavity is located above the second cavity, and the minimum passing dimension of the first cavity is greater than the minimum passing dimension of the second cavity. Therefore, when the sealing ball 52 is thrown into the second cavity for sealing, if the sealing ball 52 is not set tightly in the second cavity, a larger spare ball can be thrown into the first cavity for sealing again, so as to have a certain fault tolerance rate. Exemplarily, in order to ensure the stability of the sealing, the first cavity and the second cavity are funnel-shaped.

[0042] In order to achieve unsealing after setting, a locking assembly 9 is further provided between the ball seat shell 53 and the ball seat 54. The locking assembly 9 has a locked state and an unlocked state. When in the locked state, the ball seat 54 is connected to the ball seat shell 53; when in the unlocked state, the ball seat 54 is separated from the ball seat shell 53 to achieve unsealing and pressure relief.

[0043] Specifically, the locking assembly 9 includes a ball seat sleeve 91, which is arranged in the ball seat shell 53, and the ball seat sleeve 91 is connected to the ball seat shell 53 by a sleeve pin. When the sleeve pin breaks, the ball seat sleeve 91 can be separated from the adjustment short section 51 and the ball seat shell 53 under the action of external force; in addition, the adjustment short section 51 is provided with a slot, and a placement hole is provided on the barrel wall of the ball seat sleeve 91, and the placement hole is opposite to the slot, and the connecting member 92 is inserted into the placement hole and the slot to connect the ball seat sleeve 91 and the adjustment short section 51; in this embodiment, the slot wall of the slot is an inclined surface, and the connecting member 92 adopts a pin block, so that when the external force pushes the ball seat sleeve 91 to move downward, the pin block can be separated from the slot and slide inward along the placement hole.

[0044] In the current embodiment, the ball seat sleeve 91 is provided with a limiting platform for limiting the ball seat 54, and the limiting platform is located below the mounting hole, thereby limiting the downward movement of the ball seat 54; specifically, a retaining ring 93 is also provided in the ball seat sleeve 91, and the retaining ring 91 forms the above-mentioned limiting platform. The retaining ring 93 is screwed to the lower end of the ball seat sleeve 91, and the upper end surface of the retaining ring 93 and the ball seat sleeve 91 form a limiting platform surface, and the ball seat 54 is arranged in the retaining ring 93, and the ball seat 54 and the retaining ring 93 are connected by the ball seat shear nails 94; the upper end of the ball seat 54 is provided with a protruding limiting portion 55, so that the retaining ring 93 can prevent the ball seat 54 from moving downward, and when the limiting portion 55 abuts against the retaining ring 93, the connecting piece 92 is separated from the adjustment short section 51.

[0045] That is to say, after the sealing ball 52 is seated on the ball seat 54, the pressure in the center tube 1 is increased, so that the sealing ball 52 presses against the ball seat 54 to cut off the ball seat shear nail 94 between the ball seat 54 and the retaining ring 93. Then, the pressure is increased to move the ball seat 54 downward, and the limiting part 55 presses against the retaining ring 93. During the movement of the ball seat 54, the seating hole of the ball seat sleeve 91 is exposed. When the pressure continues to increase, the retaining ring 93 is threadedly connected to the ball seat sleeve 91, and the ball seat sleeve 91 is pushed downward, thereby applying force to the connecting member 92. Since the groove wall of the slot is an inclined surface, the connecting member 92 shrinks inwardly into the ball seat sleeve 91. Then, the pressure is continued to increase to cut off the sleeve pin between the ball seat sleeve 91 and the ball seat shell 53, so that the ball seat sleeve 91 and the ball seat 54 are separated from the adjustment short section 51 to achieve pressure relief, and then the overall recovery can be achieved by simply lifting the center tube 1.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Anti-vibration ball seat suitable for compressed gas energy storage injection and production conditions, characterized by: include: A central tube (1), wherein a pressure transmission hole (11) is provided on the central tube (1); A sliding piston (2), the sliding piston (2) being sleeved on the outside of the central tube (1), a first annular space (12) being closed up and down is provided between the sliding piston (2) and the central tube (1), the first annular space (12) being connected to the pressure transmission hole (11), and the sliding piston (2) being able to move along the axial direction of the central tube (1) under the action of an external force; A sleeve (3), the sleeve (3) being sleeved on the outer side of the central tube (1), the sleeve (3) being located below the sliding piston (2), a second annular space (31) with an upper opening being provided between the sleeve (3) and the central tube (1), the sleeve (3) being provided with a plurality of straightening holes along its circumference, each of the straightening holes correspondingly being embedded with a movable straightening ball (4), the sliding piston (2) being able to abut against the straightening ball (4) through the opening of the second annular space (31) under the action of an external force, so that the straightening ball (4) protrudes outward from the sleeve (3); A sealing assembly (5), wherein the sealing assembly (5) is connected to the lower end of the central tube (1) so as to be able to seal the central tube (1).

2. The anti-vibration ball seat suitable for compressed gas energy storage injection and production conditions according to claim 1 is characterized in that: A thrust cylinder (6) is provided between the sleeve (3) and the sliding piston (2). The thrust cylinder (6) is sleeved on the outside of the center cylinder (1). The upper end of the thrust cylinder (6) is connected to the sliding piston (2). The lower end of the thrust cylinder (6) can extend into the second annulus (31) through the opening to abut against the straightening ball (4).

3. The anti-vibration ball seat suitable for compressed gas energy storage injection and production conditions according to claim 2 is characterized in that: The lower end of the thrust cylinder (6) is provided with an inclined surface so that the inclined surface abuts against the straightening ball (4).

4. The anti-vibration ball seat suitable for compressed gas energy storage injection and production conditions according to claim 2 is characterized in that: Shear pins (7) are provided between the thrust cylinder (6) and the upper end of the sleeve (3), and between the center cylinder (1) and the lower end of the sleeve (3).

5. The anti-vibration ball seat suitable for compressed gas energy storage injection and production conditions according to claim 2 is characterized in that: A limiting component (8) is provided between one end of the thrust cylinder (6) away from the straightening ball (4) and the center cylinder (1), and the limiting component (8) can limit the thrust cylinder (6) from being away from the straightening ball (4).

6. The anti-vibration ball seat suitable for compressed gas energy storage injection and production conditions according to claim 5 is characterized in that: The limiting assembly (8) comprises a locking ring (81), wherein the locking ring (81) is sleeved on the center tube (1), and mutually matching anti-retraction teeth are arranged between the locking ring (81) and the center tube (1), the upper end of the locking ring (81) abuts against the sliding piston (2), and the lower end of the locking ring (81) abuts against the thrust tube (6).

7. The anti-vibration ball seat suitable for compressed gas energy storage injection and production conditions according to claim 6 is characterized in that: The lower end of the locking ring (81) is located between the center tube (1) and the thrust tube (6); the limiting assembly (8) also includes a retaining ring (82), which is sleeved on the center tube (1), and the upper end of the retaining ring (82) abuts against the sliding piston (2), and the inner wall of the retaining ring (82) is provided with a abutting surface that cooperates with the locking ring (81).

8. The anti-vibration ball seat suitable for compressed gas energy storage injection and production conditions according to claim 1 is characterized in that: The sealing assembly (5) comprises an adjusting nipple (51), wherein the adjusting nipple (51) is arranged at the lower end of the center tube (1), wherein a ball seat (54) is arranged inside the adjusting nipple (51), wherein the ball seat (54) is provided with a through cavity so as to limit the sealing ball (52); a locking assembly (9) is arranged between the ball seat (54) and the adjusting nipple (51), wherein the locking assembly (9) has a locking state and an unlocking state, wherein the ball seat (54) is connected to the adjusting nipple (51) when in the locking state, and the ball seat (54) is disconnected from the adjusting nipple (51) when in the unlocking state.

9. The anti-vibration ball seat suitable for compressed gas energy storage injection and production conditions according to claim 8, characterized in that: The through cavity includes a first cavity and a second cavity, the first cavity is located above the second cavity, and the minimum passing dimension of the first cavity is greater than the minimum passing dimension of the second cavity.

10. The anti-vibration ball seat suitable for compressed gas energy storage injection and production conditions according to claim 8, characterized in that: The locking assembly (9) comprises a ball seat sleeve (91) and a connecting piece (92); the ball seat sleeve (91) is located in the adjusting short joint (51); the inner wall of the adjusting short joint (51) has a slot; the ball seat sleeve (91) is provided with a placement hole corresponding to the slot; the connecting piece (92) is plugged into the placement hole and the slot to connect the ball seat sleeve (91) and the adjusting short joint (51); the connecting piece (92) can be separated from the slot under the action of an external force; a limiting platform for limiting the ball seat (54) is provided in the ball seat sleeve (91); the limiting platform is located below the placement hole.

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