Novel hydraulic jarring jam releasing tool

Abstract

The utility model relates to the technical field of jarring jam releasing assemblies, and discloses a novel hydraulic jarring jam releasing tool which comprises an outer cylinder, a mandrel, an ejector head, an ejector sleeve, a pressure applying ring, a supporting sleeve, a sleeving ring and an elastic air cushion. The ejector head can drive the ejector sleeve to move downwards to extrude the pressure applying ring, the pressure applying ring can extrude the first group of elastic air cushions, the elastic air cushions are elastically matched through internal air pressure, the two groups of sleeving rings can adaptively extrude the elastic ball cushion with elasticity when being pressed, and after hydraulic pressure is applied to a certain value and pressure is released, the elastic ball cushion can be pressed to a certain value. The elastic air cushion and the elastic ball cushion can enable the core shaft to rebound upwards through the elasticity of the elastic air cushion and the elastic ball cushion, the core shaft at the bottom of the interior of the outer barrel generates jarring movement in the same way, the fatigue condition of a traditional spring can be changed through the material characteristics of the elastic air cushion and the elastic ball cushion, and therefore the effect of prolonging the jarring service life of the outer barrel is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock release and stuck release components, in particular to a novel hydraulic shock release and stuck release tool. Background Art

[0002] During the drilling process, due to various reasons such as poor mud quality, complex geological structure, and operation errors, the accident of drill pipe getting stuck often occurs, seriously affecting the progress of drilling work. Therefore, it is necessary to release the stuck drill pipe. Generally, auxiliary stuck release tools are used for stuck release, and among them, the shocker is one of the effective tools to solve the stuck drill pipe accident.

[0003] In the existing shock release and stuck release tool, a mandrel that can be pressed and moved is arranged inside the outer cylinder. When hydraulic oil enters for pressing, the mandrel will squeeze the spring sleeved outside. When the pressure is relieved, the mandrel will rebound and shock through the spring. However, when the spring is continuously squeezed and used for a long time, it is easy to produce metal fatigue and has a limited service life. Therefore, we propose a novel hydraulic shock release and stuck release tool. Summary of the Utility Model

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides a novel hydraulic shock release and stuck release tool.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme. A novel hydraulic shock release and stuck release tool includes an outer cylinder, a mandrel, and a top head. A top sleeve and a pressure application ring are sequentially sleeved on the outside of the mandrel from top to bottom. A support sleeve that is clamped with the middle section inside the outer cylinder is slidably sleeved at the lower position outside the mandrel. Two sets of sleeve rings are slidably sleeved on the outside of the mandrel. Two elastic air cushions with air pressure inside are slidably sleeved on the outside of the mandrel.

[0006] Preferably, the top of the first set of elastic air cushions is supported and attached to the bottom of the pressure application ring, and the bottom of the elastic air cushion is supported and attached to the sleeve ring. The top of the second set of elastic air cushions is supported and attached to the sleeve ring, and the bottom of the elastic air cushion is supported and attached to the support sleeve.

[0007] Preferably, card slots are opened on one side of the two sets of sleeve rings corresponding to each other. An elastic ball pad is arranged between the two sets of sleeve rings. The two sets of sleeve rings are supported and clamped with the elastic ball pad through the card slots.

[0008] Preferably, an air guide pipe is penetrated and installed on the surface of the elastic air cushion. A round shaft is arranged inside the air guide pipe. A sealing member for sealing the port of the air guide pipe is installed at one end of the round shaft. The outside of the round shaft is supported and matched with the inside of the air guide pipe through a shaft sleeve. A limit end is installed at the other end of the round shaft. A spring that is supported and connected with the limit end is installed at one end of the shaft sleeve.

[0009] Preferably, when the limiting end squeezes and moves the seal at one end of the round shaft, after the seal moves away from the air guide pipe, the inside of the elastic air cushion is in a ventilated state through the air guide pipe.

[0010] Preferably, an assembly groove is formed in the periphery of the outer cylinder. An assembly and disassembly sleeve that is assembled and matched with the outer cylinder is arranged inside the assembly groove. A notch is formed inside the assembly and disassembly sleeve. One side of the assembly and disassembly sleeve is hermetically butted and matched with the inner side of the assembly groove through a gasket. A screw hole penetrating the outer cylinder is formed in the periphery of the assembly and disassembly sleeve, and a fixing bolt is threadedly connected inside the screw hole.

[0011] The utility model provides a novel hydraulic shock and sticking release tool. It has the following beneficial effects:

[0012] 1. For this novel hydraulic shock and sticking release tool, in this article, several groups of elastic air cushions are sleeved outside the mandrel, and the inside of the elastic air cushions is filled with air pressure. When external hydraulic oil enters the inside of the outer cylinder to press the top head, the top head can drive the top sleeve to move downward to squeeze the pressure application ring, and the pressure application ring can squeeze the first group of elastic air cushions sleeved outside the mandrel. The elastic air cushions perform elastic cooperation through the internal air pressure. When the two sleeve rings are pressed, they can adaptively squeeze the elastic spherical gasket with elasticity. After the hydraulic pressure is released to a certain value, the elastic air cushions and the elastic spherical gasket can make the mandrel bounce upward by their own elasticity, and the mandrel at the bottom inside the outer cylinder will similarly generate a shock movement. In this way, through the material characteristics of the elastic air cushions and the elastic spherical gasket, the fatigue situation of the traditional spring can be changed, so as to achieve the effect of extending the shock service life of the outer cylinder.

[0013] 2. For this novel hydraulic shock and sticking release tool, after the elastic air cushions outside the mandrel are consumed due to long-term use under pressure, the fixing bolt inside the screw hole can be rotated and disassembled. At this time, the assembly and disassembly sleeve is taken out from the assembly groove. An air guide pipe for injecting pressure into the inside of the elastic air cushion is installed outside the elastic air cushion. When the limiting end is pressed by an external air injection mechanism, the round shaft can drive the seal to move away from the air guide pipe. After the air injection mechanism enters the inside of the air guide pipe, it can punch the elastic air cushion. After the round shaft has no top pressure, the round shaft can drive the seal to reset to dock and seal the port of the air guide pipe by the characteristics of the spring itself, so as to achieve the effect of facilitating continuous injection and use of the inside of the elastic air cushion. Description of the Drawings

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained by extending according to the provided drawings without creative efforts.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is the present utility model Figure 1 an enlarged view of A in;

[0018] Figure 3 is the present utility model Figure 1 an enlarged view of B in;

[0019] Figure 4 is a partial schematic diagram of the disassembly and assembly sleeve of the present utility model.

[0020] Legend description:

[0021] 1. Outer cylinder; 2. Mandrel; 3. Top head; 4. Top sleeve; 5. Pressure ring; 6. Support sleeve; 7. Sleeve ring; 8. Elastic air cushion; 9. Card slot; 10. Elastic ball pad; 11. Assembly groove; 12. Disassembly and assembly sleeve; 13. Notch; 14. Air duct; 15. Round shaft; 16. Seal; 17. Bush; 18. Limit end; 19. Spring; 20. Gasket; 21. Screw hole; 22. Fixed bolt. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0023] Embodiment: A new type of hydraulic shock and stuck pipe releasing tool, as Figures 1-4As shown in the figure, it includes an outer cylinder 1, a mandrel 2 and a top head 3. A top sleeve 4 and a pressure ring 5 are sleeved and installed on the outside of the mandrel 2 from top to bottom in sequence. A support sleeve 6 that is clamped with the middle section of the inner side of the outer cylinder 1 is slidably sleeved at the lower position outside the mandrel 2. Two sets of sleeve rings 7 are slidably sleeved on the outside of the mandrel 2. Two sets of elastic air cushions 8 with air pressure inside are slidably sleeved on the outside of the mandrel 2. Card slots 9 are opened on one side of the two sets of sleeve rings 7 corresponding to each other. An elastic ball pad 10 is arranged between the two sets of sleeve rings 7. An assembly groove 11 is opened on the periphery of the outer cylinder 1. An assembly and disassembly sleeve 12 that is assembled and cooperated with the outer cylinder 1 is arranged inside the assembly groove 11. A notch 13 is opened on the inner side of the assembly and disassembly sleeve 12. An air guide pipe 14 is installed through the surface of the elastic air cushion 8. A round shaft 15 is arranged inside the air guide pipe 14. A sealing member 16 that seals the port of the air guide pipe 14 is installed at one end of the round shaft 15. The outside of the round shaft 15 is supported and cooperated with the inner side of the air guide pipe 14 through a shaft sleeve 17. A limiting end 18 is installed at the other end of the round shaft 15. A spring 19 that is supported and connected with the limiting end 18 is installed at one end of the shaft sleeve 17. One side of the assembly and disassembly sleeve 12 is hermetically butted and cooperated with the inner side of the assembly groove 11 through a sealing gasket 20. A screw hole 21 that penetrates the outer cylinder 1 is opened on the periphery of the assembly and disassembly sleeve 12. A fixing bolt 22 is threadedly connected inside the screw hole 21.

[0024] Further, the top of the first set of elastic air cushions 8 is supported and abutted against the bottom of the pressure ring 5, and the bottom of the elastic air cushion 8 is supported and abutted against the sleeve ring 7. The top of the second set of elastic air cushions 8 is supported and abutted against the sleeve ring 7, and the bottom of the elastic air cushion 8 is supported and abutted against the support sleeve 6.

[0025] Further, the two sets of sleeve rings 7 are supported and clamped with the elastic ball pad 10 through the card slots 9.

[0026] Further, when the sealing member 16 at one end of the round shaft 15 is extruded and moved by the limiting end 18, after the sealing member 16 moves away from the air guide pipe 14, the inside of the elastic air cushion 8 is in a ventilated state through the air guide pipe 14.

[0027] The working principle of the utility model:

[0028] The outer sleeve of the core shaft 2 is provided with a plurality of groups of elastic air cushions 8, and the interior of the elastic air cushions 8 is filled with air pressure. When the external hydraulic oil enters the outer tube 1 and applies pressure to the top head 3, the top head 3 can drive the top sleeve 4 to move downward to squeeze the pressure ring 5, and the pressure ring 5 can squeeze the first group of elastic air cushions 8 sleeved on the outer side of the core shaft 2. The elastic air cushions 8 are elastically matched by the internal air pressure, and the two groups of sleeve rings 7 can adapt to the elastic ball cushions 10 with elasticity when under pressure. After the hydraulic pressure is released to a certain value, the elasticity of the elastic air cushions 8 and the elastic ball cushions 10 themselves can make the core shaft 2 rebound upward, and the core shaft 2 at the bottom of the outer tube 1 similarly produces a shock movement. In this way, the material characteristics of the elastic air cushions 8 and the elastic ball cushions 10 themselves can change the fatigue of the traditional spring, thereby In order to extend the shock service life of the outer cylinder 1, the elastic air cushion 8 on the outside of the core shaft 2 can be rotated and disassembled by the fixing bolt 22 in the screw hole 21 after being consumed by long-term pressure use. At this time, the disassembly sleeve 12 is taken out from the assembly groove 11, and the outside of the elastic air cushion 8 is installed with an air guide tube 14 for injecting pressure into the elastic air cushion 8. When the limiting end 18 is pressed by the external air injection mechanism, the round shaft 15 can drive the sealing member 16 to move away from the air guide tube 14, and the air injection mechanism can punch the elastic air cushion 8 after entering the air guide tube 14. After the round shaft 15 is free of pressure, the round shaft 15 can drive the sealing member 16 to reset through the characteristics of the spring 19 itself to dock and seal the port of the air guide tube 14, thereby facilitating continuous injection and pressure on the inside of the elastic air cushion 8.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A new type of hydraulic jarring unblocking tool, comprising an outer cylinder (1), a core shaft (2) and a plug (3), characterized in that: The outside of the core shaft (2) is sleeved with a top sleeve (4) and a pressure ring (5) in sequence from top to bottom, the sliding sleeve at the lower position of the outside of the core shaft (2) is provided with a support sleeve (6) clamped with the inner middle section of the outer cylinder (1), the external sliding sleeve of the core shaft (2) is provided with two groups of sleeve rings (7), and the external sliding sleeve of the core shaft (2) is provided with two groups of elastic air cushions (8) with air pressure inside.

2. A new type of hydraulic jarring jam-releasing tool according to claim 1, characterized in that: The top of the elastic air cushion (8) of the first group is supported and fitted with the bottom of the pressure ring (5), and the bottom of the elastic air cushion (8) is supported and fitted with the sleeve ring (7); the top of the elastic air cushion (8) of the second group is supported and fitted with the sleeve ring (7), and the bottom of the elastic air cushion (8) is supported and fitted with the support sleeve (6).

3. A new type of hydraulic jarring jam-releasing tool according to claim 2, characterized in that: A clamping groove (9) is provided on one side of the two sets of sleeve rings (7) corresponding to each other, and an elastic ball pad (10) is provided between the two sets of sleeve rings (7). The two sets of sleeve rings (7) are supported and clamped by the clamping groove (9) and the elastic ball pad (10).

4. A new hydraulic jarring jam-releasing tool according to claim 2, characterized in that: An air guide tube (14) is installed through the surface of the elastic air cushion (8), a round shaft (15) is arranged inside the air guide tube (14), one end of the round shaft (15) is installed with a sealing member (16) for sealing the port of the air guide tube (14), the outside of the round shaft (15) is supported and matched with the inside of the air guide tube (14) through a shaft sleeve (17), the other end of the round shaft (15) is installed with a limit end (18), and one end of the shaft sleeve (17) is installed with a spring (19) supported and connected to the limit end (18).

5. A new type of hydraulic jarring jam-releasing tool according to claim 4, characterized in that: When the sealing member (16) at one end of the circular shaft (15) is squeezed and moved by the limiting end (18), after the sealing member (16) is away from the air guide tube (14), the interior of the elastic air cushion (8) is in a ventilated state through the air guide tube (14).

6. A new type of hydraulic jarring jam-releasing tool according to claim 1, characterized in that: The outer periphery of the outer cylinder (1) is provided with an assembly groove (11), the interior of the assembly groove (11) is provided with a disassembly sleeve (12) assembled with the outer cylinder (1), the inner side of the disassembly sleeve (12) is provided with a notch (13), one side of the disassembly sleeve (12) is sealed and butted with the inner side of the assembly groove (11) through a sealing gasket (20), the outer periphery of the disassembly sleeve (12) is provided with a screw hole (21) penetrating the outer cylinder (1), and the inner side of the screw hole (21) is threadedly connected with a fixing bolt (22).

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