Integrated squeezing and sealing device

Abstract

The utility model discloses an integrated extrusion sealing structure which comprises a piston core shaft, one end of the piston core shaft is sleeved with an upper connector, the other end of the piston core shaft is attached to a pressure transmission core shaft port, the position, away from the upper connector port, of the pressure transmission core shaft is connected with a releasing assembly, and the piston core shaft is sleeved with a protection assembly in a hollow cylinder shape. The protective assembly is close to the inner wall of the upper connector and connected with the outer wall of the upper connector, the pressure transmitting mandrel is close to the side wall of the piston mandrel and connected with the inner wall of the protective assembly in a sleeved mode, the pressure transmitting mandrel is sleeved with a connecting assembly in a hollow cylinder shape, and the connecting assembly is attached to a port of the protective assembly and attached to the releasing assembly. Holes are formed in the opposite positions of the side walls of the releasing assembly and the connecting assembly. The problems that in the prior art, a well cannot be flushed in two directions, and squeezing and releasing operation cannot be rapidly completed are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to packer technical field relates to integrated extrusion sealing device. BACKGROUND

[0002] At present, old well plugging is the key to ensure the sealing integrity of oil and gas storage, and special plugging agent is usually used for wellbore, upward channel, casing outside and cap layer section treatment. The existing tool for old well plugging needs to run two extrusion sealing devices in the field construction, which has long operation cycle and inconvenient operation.

[0003] The patent with the patent name of "one-trip string extrusion sealing arbitrary layer section packer" and the publication number of CN111878031A and the publication date of November 3, 2020 discloses an upper bridge plug device and a lower bridge plug device capable of setting and sealing by throwing and extruding injection device; the throwing and extruding injection device includes an upper joint, a piston cylinder, a sealing plug and a first elastic claw, the piston cylinder is connected to the outer side of the middle part of the upper joint by at least one first shear pin, the upper part of the sealing plug is sleeved on the outer side of the lower part of the piston cylinder, and the middle part of the sealing plug is sleeved on the outer side of the lower part of the upper joint. This patent realizes the extrusion sealing and cleaning of the pipeline, but the cleaning injection agent can easily cause loosening between the device and the pipeline in the bidirectional cleaning process, which affects the extrusion sealing effect, and the melting of the injection agent with the temperature rise also affects the extrusion sealing effect. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an integrated extrusion sealing device to solve the problems of bidirectional well cleaning and quick extrusion sealing and releasing in the prior art.

[0005] The utility model adopts the technical scheme of an integrated extrusion sealing device, which includes a piston core shaft, an upper joint is sleeved at one end of the piston core shaft, a pressure transmission core shaft port is attached to the other end of the piston core shaft, a releasing assembly is connected to the end of the pressure transmission core shaft away from the upper joint port, a hollow cylindrical protective assembly is sleeved outside the piston core shaft, the protective assembly is connected to the inner wall of the upper joint near the outer wall of the upper joint, the pressure transmission core shaft is sleeved to the inner wall of the protective assembly near the side wall of the piston core shaft, a hollow cylindrical connecting assembly is sleeved outside the pressure transmission core shaft, the connecting assembly is attached to the port of the protective assembly, the connecting assembly is attached to the releasing assembly, and holes are formed in the opposite positions of the side walls of the releasing assembly and the connecting assembly.

[0006] The utility model has the characteristics of:

[0007] The protection assembly comprises an upper piston sleeved on the side wall of the piston core shaft, the upper piston is arranged close to the upper joint, the upper piston is sleeved with a starting piston close to the upper joint, the starting piston is connected with the upper piston through a starting shear pin, the inner wall of the starting piston is sleeved with the outer wall of the upper joint, the upper piston is connected with the upper joint through a starting lock block, the port of the starting piston is matched with the port of the upper joint, the outer wall of the piston core shaft matched with the transmission pressure core shaft is sleeved with an intermediate piston, the outer wall of the intermediate piston and the outer wall of the upper piston away from the upper joint are jointly sleeved with a piston outer cylinder, and the outer wall of the piston outer cylinder, the outer wall of the upper joint and the outer wall of the starting piston are jointly sleeved with a fixed outer cylinder.

[0008] The connecting assembly comprises a lower piston sleeved on the outer wall of the transmission pressure core shaft, the port of the lower piston is matched with the port of the intermediate piston, the lower piston is sleeved with a thrust cylinder away from the outer wall of the upper joint, the lower piston is sleeved with the inner wall of the piston outer cylinder close to the outer wall of the upper piston, and the port of the piston outer cylinder is matched with the port of the thrust cylinder.

[0009] The releasing assembly comprises an outer fixed assembly and an adjusting assembly, the outer fixed assembly comprises a setting core shaft sleeved on the outer wall of the transmission pressure core shaft, the setting core shaft is connected with the transmission pressure core shaft through a releasing shear pin, the setting core shaft is connected with a first slipper close to the side wall of the upper joint through a setting shear pin, the side wall of the setting core shaft is sequentially sleeved with an upper vertebral body, a first glue barrel, a spacer ring, a second glue barrel, a lower vertebral body, a second slipper and a lower pressing cap away from the first slipper, the upper vertebral body is matched with the first slipper, the upper vertebral body is connected with the setting core shaft through a lock ring, the lower vertebral body is matched with the second slipper, the second slipper is connected with a limit ring port matched, the setting core shaft is connected with a hollow lower pressing cap away from the second slipper, and a liquid passing hole is arranged on the side wall of the setting core shaft between the lower pressing cap and the limit ring.

[0010] The adjusting assembly comprises a ball seat, the ball seat is connected with the inner wall of the transmission pressure core shaft, the ball seat is connected with the setting core shaft through a connecting shear pin, the ball seat is matched with a pressure ball close to the upper joint, the outer wall of the transmission pressure core shaft is sleeved with a connecting claw away from the port of the upper joint, the connecting claw is connected with a sealing column, the inner wall of the setting core shaft is sleeved with the sealing column, the lower pressing cap is matched with a T-shaped sealing piston in the inner space of the upper joint, the sealing piston is matched with the transmission pressure core shaft away from the port of the upper joint, the transmission pressure core shaft is in a hook shape close to the port of the sealing piston, the outer wall of the transmission pressure core shaft is connected with the inner wall of the sealing column, the side wall of the transmission pressure core shaft is provided with a water permeable hole, and the transmission pressure core shaft is provided with a rectangular movable space between the setting core shaft.

[0011] The outer wall of the sealing column is provided with a plurality of arc-shaped grooves in the axial direction of the sealing column, and the arc-shaped grooves are matched with sealing rings.

[0012] The setting core shaft is connected with the lower vertebral body through a guide key.

[0013] The connecting claw is arranged between the liquid passing hole and the water permeable hole.

[0014] The sealing piston transverse and longitudinal joints are prone to breakage.

[0015] The utility model discloses a beneficial effect is: integrated extrusion sealing device is set up the hole on the drop hand subassembly and connecting subassembly, the extrusion sealing device is connected with the well, can complete the well in two -way well washing, when setting, pull up the upper joint, the hole of drop hand subassembly and connecting subassembly is blocked, the well pressure and the pressure in the extrusion sealing device are different, and the well is conveniently extruded and sealed, set up the transmission pressure core shaft and piston core shaft, compared with only one core shaft in prior art to transmit pressure, the utility model is in working, and the required pressure is only half of the transmission pressure of one core shaft, and resource consumption is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is integrated extrusion sealing device structure schematic diagram of the utility model.

[0017] In the drawing, 1. piston core shaft, 2. upper joint, 3. transmission pressure core shaft, 4. protection subassembly, 5. connecting subassembly, 6. drop hand subassembly, 7. guide key, 8. upper piston, 9. starting piston, 10. starting shear pin, 11. starting lock block, 12. intermediate piston, 13. piston outer cylinder, 14. lower piston, 15. thrust cylinder, 16. outer solid component, 17. adjusting component, 18. setting core shaft, 19. drop hand shear pin, 20. setting shear pin, 21. first slip, 22. upper vertebral body, 23. first glue barrel, 24. spacer ring, 25. second glue barrel, 26. lower vertebral body, 27. second slip, 28. limit ring, 29. ball seat, 30. connecting shear pin, 31. pressure ball, 32. connecting claw, 33. sealing column, 34. sealing piston, 35. water-permeable hole, 36. arc-shaped groove, 37. sealing ring, 38. fixed outer cylinder, 39. lower pressure cap, 40. liquid passage, 41. lock ring. DETAILED DESCRIPTION

[0018] The utility model will be described in detail below in combination with the drawings and specific embodiment.

[0019] Integrated extrusion sealing device, as shown in Figure 1 The utility model discloses a piston core shaft 1 one end is sleeved with upper joint 2, and the other end of piston core shaft 1 is attached with transmission pressure core shaft 3 port, and transmission pressure core shaft 3 is connected with drop hand subassembly 6 away from upper joint 2 port, and piston core shaft 1 is sleeved with the protection subassembly 4 of the hollow cylinder, and the protection subassembly 4 is connected with the outer wall of upper joint 2 close to the inner wall of upper joint 2, and transmission pressure core shaft 3 is sleeved with the inner wall of protection subassembly 4 close to the side wall of piston core shaft 1, and transmission pressure core shaft 3 is sleeved with the connecting subassembly 5 of the hollow cylinder, and connecting subassembly 5 is attached with the port of protection subassembly 4, and connecting subassembly 5 is attached with drop hand subassembly 6, and drop hand subassembly 6 is set up with the hole in the opposite position of connecting subassembly 5 side wall.

[0020] The protection assembly 4 comprises an upper piston 8 sleeved on the side wall of the piston core shaft 1, the upper piston 8 is arranged close to the upper joint 2, the upper piston 8 is sleeved with a starting piston 9 close to the upper joint 2, the starting piston 9 is connected with the upper piston 8 through a starting shear pin 10, the starting piston 9 is sleeved with the outer wall of the upper joint 2, the upper piston 8 is connected with the upper joint 2 through a starting lock block 11, the port of the starting piston 9 is attached to the port of the upper joint 2, the outer wall of the piston core shaft 1 attached to the transmission pressure core shaft 3 is sleeved with an intermediate piston 12, the outer wall of the intermediate piston 12 and the outer wall of the upper piston 8 away from the upper joint 2 are jointly sleeved with a piston outer cylinder 13, the outer wall of the piston outer cylinder 13, the outer wall of the upper joint 2 and the outer wall of the starting piston 9 are jointly sleeved with a fixed outer cylinder 38.

[0021] The connecting assembly 5 comprises a lower piston 14 sleeved on the outer wall of the transmission pressure core shaft 3, the port of the lower piston 14 is attached to the port of the intermediate piston 12, the lower piston 14 is sleeved with a thrust cylinder 15 away from the outer wall of the upper joint 2, the lower piston 14 is sleeved with the inner wall of the piston outer cylinder 13 close to the outer wall of the upper piston 8, the port of the piston outer cylinder 13 is attached to the port of the thrust cylinder 15.

[0022] The releasing assembly 6 comprises an outer fixed assembly 16 and an adjusting assembly 17, the outer fixed assembly 16 comprises a setting core shaft 18 sleeved on the outer wall of the transmission pressure core shaft 3, the setting core shaft 18 is connected with the transmission pressure core shaft 3 through a releasing shear pin 19, the setting core shaft 18 is connected with a first slip 21 through a setting shear pin 20 close to the side wall of the upper joint 2, the side wall of the setting core shaft 18 is sequentially sleeved with an upper cone body 22, a first glue barrel 23, a spacer ring 24, a second glue barrel 25, a lower cone body 26, a second slip 27 and a lower pressing cap 39 away from the first slip 21, the upper cone body 22 is matched with the first slip 21, the upper cone body 22 is connected with the setting core shaft 18 through a lock ring 41, the lower cone body 26 is matched with the second slip 27, the second slip 27 is connected with the port of a limiting ring 28 attached, the setting core shaft 18 is connected with a hollow lower pressing cap 39 away from one end of the second slip 27, the side wall of the setting core shaft 18 between the lower pressing cap 39 and the limiting ring 28 is provided with a liquid passing hole 40.

[0023] The adjusting assembly 17 comprises a ball seat 29 connected with the inner wall of the pressure transmission mandrel 3, the ball seat 29 is connected with the setting mandrel 18 through a connecting shear pin 30, the ball seat 29 is matched with a pressure ball 31 near one end of the upper joint 2, the outer wall of the pressure transmission mandrel 3 is sleeved with a connecting claw 32 at the port away from the upper joint 2, the connecting claw 32 is connected with a sealing column 33, the inner wall of the setting mandrel 18 is sleeved with the sealing column 33, a lower pressing cap 39 exists in the column space away from the inner port of the upper joint 2, the column space is matched with a T-shaped sealing piston 34, the sealing piston 34 is matched with the pressure transmission mandrel 3 away from the port of the upper joint 2, the pressure transmission mandrel 3 is hook-shaped near the port of the sealing piston 34, the outer wall of the pressure transmission mandrel 3 is connected with the inner wall of the sealing column 33, the sidewall of the pressure transmission mandrel 3 is provided with a water permeation hole 35, a rectangular activity space is arranged between the pressure transmission mandrel 3 and the setting mandrel 18, the activity space is arranged near the second slip 27, and the activity space is matched with the connecting claw 32.

[0024] The outer wall of the sealing column 33 is provided with a plurality of arc-shaped grooves 36 along the axial direction of the sealing column 33, and the arc-shaped grooves 36 are matched with sealing rings 37.

[0025] The setting mandrel 18 is connected with the lower vertebral body 26 through the guide key 7.

[0026] The connecting claw 32 is arranged between the liquid passing hole 40 and the water permeation hole 35.

[0027] The transverse and longitudinal connecting portions of the sealing piston 34 are prone to breakage.

[0028] The length of the activity space is greater than that of the connecting claw 32, and the connecting claw 32 is movable in the activity space; the transverse and longitudinal connecting portions of the T-shaped sealing piston 34 are simply connected, the connecting portions of the sealing piston 34 are prone to breakage when the upper joint 2 is lifted, part of the sealing piston 34 is matched with the gap at the inner port of the lower pressing cap 39 away from the upper joint 2, the sealing column 33 is moved to between the water permeation hole 35 and the liquid passing hole 40, the sealing column 33 realizes the sealing effect on the sidewall of the integrated squeeze packing device, the part of the integrated squeeze packing device left at the well mouth is closely matched with the well mouth, and the well is squeezed.

[0029] When the upper joint 2 is lifted, the position relationship of the connecting claw 32 between the water permeation hole 35 and the liquid passing hole 40 is changed into that of the sealing column 33 between the water permeation hole 35 and the liquid passing hole 40 in the moving process of the pressure transmission mandrel 3, and the sidewall of the integrated squeeze packing device is sealed.

[0030] Working process: during the downhole process of the integrated extrusion sealing device, the setting of the water permeation hole 35, the liquid passage hole 40 and the connecting claw 32 makes the integrated extrusion sealing device equal to the air pressure in the well, facilitates the downhole, and can realize bidirectional well washing; when extruding and sealing the well mouth, the lower pressing cap 39 is sent to the water outlet position and downward, a ball is thrown into the integrated extrusion sealing device, the pressure ball 31 cooperates with the ball seat 29, the integrated extrusion sealing device is not connected, on this basis, the inside of the device is pressurized from the upper connector 2, under the action of pressure, the upper piston 8 moves towards the well, the pressure increases, the upper piston 8 and the starting piston 9 slide relatively, until the starting shear pin 10 is disconnected, continuous pressurization, the starting lock block 11 between the upper piston 8 and the upper connector 2 is broken, the upper piston 8 pushes the piston outer cylinder 13, the lower piston 14 and the thrust cylinder 15 to move towards the well together, the thrust cylinder 15 pushes the first slip 21 to move downward during the movement towards the well, the setting core shaft 18 remains stationary, when the first slip 21 and the upper vertebral body 22 displace, the setting shear pin 20 breaks, the upper vertebral body 22 pushes the first rubber barrel 23, the spacer ring 24, the second rubber barrel 25, the lower vertebral body 26 and the second slip 27 to displace, the lock ring 41 between the upper vertebral body 22 and the setting core shaft 18 is disconnected, the limiting ring 28 plays a limiting role, the first rubber barrel 23 and the second rubber barrel 25 are deformed after being extruded, the upper vertebral body 22 and the lower vertebral body 26 cooperate with the first rubber barrel 23 and the second rubber barrel 25 respectively, and the well mouth is sealed.

[0031] Continue to pressurize, when the thrust cylinder pushes the first slip and the upper vertebral body to continue to move downward, the setting core shaft 18 will displace between the pressure transmission core shaft 3, causing the breakage of the releasing shear pin 19, the upper connector 2 is lifted, the setting core shaft 18 cooperates with the sealing piston 34 after the claw-shaped one end of the setting core shaft 18, and then pulls the sealing piston 34, one half of the sealing piston 34 remains in the hole away from the upper connector 2 of the lower pressing cap 39, the connecting claw 32 moves towards the upper connector 2, the sealing column 33 is located between the water permeation hole 35 and the liquid passage hole 40, and the device is separated from the airflow in the well, enhancing the sealing effect of the second rubber barrel 25 and the first rubber barrel 23 on the well,

[0032] Embodiment 1

[0033] The integrated extrusion sealing device comprises a piston core shaft 1, one end of the piston core shaft 1 is sleeved with an upper connector 2, the other end of the piston core shaft 1 is attached with a pressure transmission core shaft 3 port, the pressure transmission core shaft 3 is connected with a releasing assembly 6 away from the port of the upper connector 2, the piston core shaft 1 is sleeved with a hollow cylindrical protection assembly 4, the protection assembly 4 is connected with the outer wall of the upper connector 2 close to the inner wall of the upper connector 2, the pressure transmission core shaft 3 is sleeved with the inner wall of the protection assembly 4 close to the side wall of the piston core shaft 1, the pressure transmission core shaft 3 is sleeved with a connecting assembly 5 in the form of a hollow cylinder, the connecting assembly 5 is attached to the port of the protection assembly 4, the connecting assembly 5 is attached to the releasing assembly 6, and holes are formed in the opposite positions of the side wall of the connecting assembly 5 and the releasing assembly 6.

[0034] Example 2

[0035] The integrated extrusion sealing device comprises a piston mandrel 1, one end of which is sleeved with an upper joint 2, the other end of which is attached to the port of a pressure transmission mandrel 3, the end of the pressure transmission mandrel 3 away from the port of the upper joint 2 is connected with a releasing assembly 6, the piston mandrel 1 is sleeved with a protective assembly 4 in the shape of a hollow cylinder, the protective assembly 4 is connected with the outer wall of the upper joint 2 near the inner wall of the upper joint 2, the pressure transmission mandrel 3 is sleeved with the inner wall of the protective assembly 4 near the side wall of the piston mandrel 1, the pressure transmission mandrel 3 is sleeved with a connecting assembly 5 in the shape of a hollow cylinder, the connecting assembly 5 is attached to the port of the protective assembly 4, the connecting assembly 5 is attached to the releasing assembly 6, and holes are formed in the opposite positions of the side wall of the connecting assembly 5 and the releasing assembly 6.

[0036] The protective assembly 4 comprises an upper piston 8 sleeved on the side wall of the piston mandrel 1, which is arranged near the upper joint 2, the upper piston 8 is sleeved with a starting piston 9 near the upper joint 2, the starting piston 9 is connected with the upper piston 8 through a starting shear pin 10, the starting piston 9 is sleeved with the outer wall of the upper joint 2, the upper piston 8 is connected with the upper joint 2 through a starting lock block 11, the port of the starting piston 9 is attached to the port of the upper joint 2, the outer wall of the piston mandrel 1 and the pressure transmission mandrel 3 are sleeved with an intermediate piston 12, the outer wall of the intermediate piston 12 and the outer wall of the upper piston 8 away from the upper joint 2 are jointly sleeved with a piston outer cylinder 13, and the outer wall of the piston outer cylinder 13, the outer wall of the upper joint 2 and the outer wall of the starting piston 9 are jointly sleeved with a fixed outer cylinder 38.

[0037] Example 3

[0038] The integrated extrusion sealing device comprises a piston mandrel 1, one end of which is sleeved with an upper joint 2, the other end of which is attached to the port of a pressure transmission mandrel 3, the end of the pressure transmission mandrel 3 away from the port of the upper joint 2 is connected with a releasing assembly 6, the piston mandrel 1 is sleeved with a protective assembly 4 in the shape of a hollow cylinder, the protective assembly 4 is connected with the outer wall of the upper joint 2 near the inner wall of the upper joint 2, the pressure transmission mandrel 3 is sleeved with the inner wall of the protective assembly 4 near the side wall of the piston mandrel 1, the pressure transmission mandrel 3 is sleeved with a connecting assembly 5 in the shape of a hollow cylinder, the connecting assembly 5 is attached to the port of the protective assembly 4, the connecting assembly 5 is attached to the releasing assembly 6, and holes are formed in the opposite positions of the side wall of the connecting assembly 5 and the releasing assembly 6.

[0039] The protection assembly 4 comprises an upper piston 8 sleeved on the side wall of the piston core shaft 1, the upper piston 8 is arranged close to the upper joint 2, the upper piston 8 is sleeved with a starting piston 9 close to the upper joint 2, the starting piston 9 is connected with the upper piston 8 through a starting shear pin 10, the starting piston 9 is sleeved with the outer wall of the upper joint 2, the upper piston 8 is connected with the upper joint 2 through a starting lock block 11, the port of the starting piston 9 is attached to the port of the upper joint 2, the outer wall of the piston core shaft 1 attached to the transmission pressure core shaft 3 is sleeved with an intermediate piston 12, the outer wall of the intermediate piston 12 and the outer wall of the upper piston 8 away from the upper joint 2 are jointly sleeved with a piston outer cylinder 13, and the outer wall of the piston outer cylinder 13, the outer wall of the upper joint 2 and the outer wall of the starting piston 9 are jointly sleeved with a fixed outer cylinder 38.

[0040] The connecting assembly 5 comprises a lower piston 14 sleeved on the outer wall of the transmission pressure core shaft 3, the port of the lower piston 14 is attached to the port of the intermediate piston 12, the lower piston 14 is sleeved with a thrust cylinder 15 away from the outer wall of the upper joint 2, the lower piston 14 is sleeved with the inner wall of the piston outer cylinder 13 close to the outer wall of the upper piston 8, and the port of the piston outer cylinder 13 is attached to the port of the thrust cylinder 15.

[0041] Embodiment 4

[0042] The integrated extrusion sealing device comprises a piston core shaft 1, one end of the piston core shaft 1 is sleeved with an upper joint 2, the other end of the piston core shaft 1 is attached to the port of a transmission pressure core shaft 3, the transmission pressure core shaft 3 is connected with a release assembly 6 away from the port of the upper joint 2, the piston core shaft 1 is sleeved with a protection assembly 4 in the shape of a hollow cylinder, the protection assembly 4 is connected with the outer wall of the upper joint 2 close to the inner wall of the upper joint 2, the transmission pressure core shaft 3 is sleeved with the inner wall of the protection assembly 4 close to the side wall of the piston core shaft 1, the transmission pressure core shaft 3 is sleeved with a connecting assembly 5 in the shape of a hollow cylinder, the connecting assembly 5 is attached to the port of the protection assembly 4, the connecting assembly 5 is attached to the release assembly 6, and holes are arranged at positions opposite to the side wall of the connecting assembly 5 in the release assembly 6.

[0043] The protection assembly 4 comprises an upper piston 8 sleeved on the side wall of the piston core shaft 1, the upper piston 8 is arranged close to the upper joint 2, the upper piston 8 is sleeved with a starting piston 9 close to the upper joint 2, the starting piston 9 is connected with the upper piston 8 through a starting shear pin 10, the starting piston 9 is sleeved with the outer wall of the upper joint 2, the upper piston 8 is connected with the upper joint 2 through a starting lock block 11, the port of the starting piston 9 is attached to the port of the upper joint 2, the outer wall of the piston core shaft 1 attached to the transmission pressure core shaft 3 is sleeved with an intermediate piston 12, the outer wall of the intermediate piston 12 and the outer wall of the upper piston 8 away from the upper joint 2 are jointly sleeved with a piston outer cylinder 13, and the outer wall of the piston outer cylinder 13, the outer wall of the upper joint 2 and the outer wall of the starting piston 9 are jointly sleeved with a fixed outer cylinder 38.

[0044] The connecting assembly 5 comprises a lower piston 14 sleeved on the outer wall of the pressure transmission mandrel 3, the port of the lower piston 14 is matched with the port of the intermediate piston 12, the lower piston 14 is sleeved with a thrust cylinder 15 away from the outer wall of the upper joint 2, the lower piston 14 is sleeved with the inner wall of the piston outer cylinder 13 close to the outer wall of the upper piston 8, and the ports of the piston outer cylinder 13 and the thrust cylinder 15 are matched.

[0045] The releasing assembly 6 comprises an outer fixed assembly 16 and an adjusting assembly 17, the outer fixed assembly 16 comprises a setting mandrel 18 sleeved on the outer wall of the pressure transmission mandrel 3, the setting mandrel 18 is connected with the pressure transmission mandrel 3 through a releasing shear pin 19, the setting mandrel 18 is connected with a first slip 21 close to the side wall of the upper joint 2 through a setting shear pin 20, the setting mandrel 18 is sequentially sleeved with an upper cone body 22, a first rubber barrel 23, a spacer ring 24, a second rubber barrel 25, a lower cone body 26, a second slip 27 and a lower pressing cap 39 away from the first slip 21, the upper cone body 22 is matched with the first slip 21, the upper cone body 22 is connected with the setting mandrel 18 through a lock ring 41, the lower cone body 26 is matched with the second slip 27, the second slip 27 is connected with the port of a limiting ring 28, the setting mandrel 18 is connected with a hollow lower pressing cap 39 away from the second slip 27, and a liquid passing hole 40 is arranged on the side wall of the setting mandrel 18 between the lower pressing cap 39 and the limiting ring 28.

[0046] Embodiment 5

[0047] The integrated extrusion and sealing device comprises a piston mandrel 1, one end of the piston mandrel 1 is sleeved with an upper joint 2, the other end of the piston mandrel 1 is matched with the port of a pressure transmission mandrel 3, the pressure transmission mandrel 3 is connected with a releasing assembly 6 away from the port of the upper joint 2, the piston mandrel 1 is sleeved with a protective assembly 4 in a hollow column body, the protective assembly 4 is connected with the outer wall of the upper joint 2 close to the inner wall of the upper joint 2, the pressure transmission mandrel 3 is sleeved with the inner wall of the protective assembly 4 close to the side wall of the piston mandrel 1, the pressure transmission mandrel 3 is sleeved with a connecting assembly 5 in a hollow column body, the connecting assembly 5 is matched with the port of the protective assembly 4, the connecting assembly 5 is matched with the releasing assembly 6, and holes are arranged at positions opposite to the side wall of the connecting assembly 5 of the releasing assembly 6.

[0048] The protective assembly 4 comprises an upper piston 8 sleeved on the side wall of the piston mandrel 1, the upper piston 8 is arranged close to the upper joint 2, the upper piston 8 is sleeved with a starting piston 9 close to the upper joint 2, the starting piston 9 is connected with the upper piston 8 through a starting shear pin 10, the starting piston 9 is sleeved with the outer wall of the upper joint 2, the upper piston 8 is connected with the upper joint 2 through a starting lock block 11, the port of the starting piston 9 is matched with the port of the upper joint 2, the outer wall of the piston mandrel 1 matched with the pressure transmission mandrel 3 is sleeved with an intermediate piston 12, the outer wall of the intermediate piston 12 and the outer wall of the upper piston 8 away from the upper joint 2 are jointly sleeved with a piston outer cylinder 13, and the outer wall of the piston outer cylinder 13, the outer wall of the upper joint 2 and the outer wall of the starting piston 9 are jointly sleeved with a fixed outer cylinder 38.

[0049] The connecting assembly 5 comprises a lower piston 14 sleeved on the outer wall of the pressure transmission mandrel 3, the port of the lower piston 14 is attached to the port of the intermediate piston 12, the lower piston 14 is sleeved with a thrust cylinder 15 away from the outer wall of the upper joint 2, the lower piston 14 is sleeved with the piston outer cylinder 13 close to the outer wall of the upper piston 8, the port of the piston outer cylinder 13 is attached to the port of the thrust cylinder 15.

[0050] The releasing assembly 6 comprises an outer fixed assembly 16 and an adjusting assembly 17, the outer fixed assembly 16 comprises a setting mandrel 18 sleeved on the outer wall of the pressure transmission mandrel 3, the setting mandrel 18 is connected with the pressure transmission mandrel 3 through a releasing shear pin 19, the setting mandrel 18 is connected with a first slip 21 close to the side wall of the upper joint 2 through a setting shear pin 20, the setting mandrel 18 is sequentially sleeved with an upper cone 22, a first rubber barrel 23, a spacer ring 24, a second rubber barrel 25, a lower cone 26, a second slip 27 and a lower pressing cap 39 away from the first slip 21, the upper cone 22 is matched with the first slip 21, the upper cone 22 is connected with the setting mandrel 18 through a locking ring 41, the lower cone 26 is matched with the second slip 27, the second slip 27 is connected with the port of a limiting ring 28, the setting mandrel 18 is connected with the hollow lower pressing cap 39 away from the second slip 27, the side wall of the setting mandrel 18 between the lower pressing cap 39 and the limiting ring 28 is provided with a liquid passing hole 40.

[0051] The adjusting assembly 17 comprises a ball seat 29 connected with the inner wall of the pressure transmission mandrel 3, the ball seat 29 is connected with the setting mandrel 18 through a connecting shear pin 30, the ball seat 29 is matched with a pressing ball 31 close to the upper joint 2, the pressure transmission mandrel 3 is sleeved with a connecting claw 32 on the outer wall of the port away from the upper joint 2, the connecting claw 32 is connected with a sealing column 33, the inner wall of the setting mandrel 18 is sleeved with the sealing column 33, the lower pressing cap 39 is provided with a column space in the inner wall away from the upper joint 2, the column space is matched with a T-shaped sealing piston 34, the sealing piston 34 is matched with the port of the pressure transmission mandrel 3 away from the upper joint 2, the port of the pressure transmission mandrel 3 close to the sealing piston 34 is hook-shaped, the outer wall of the pressure transmission mandrel 3 is connected with the inner wall of the sealing column 33, the side wall of the pressure transmission mandrel 3 is provided with a water passing hole 35, the pressure transmission mandrel 3 and the setting mandrel 18 are provided with a rectangular activity space, the activity space is close to the second slip 27, and the activity space is matched with the connecting claw 32.

[0052] Embodiment 6

[0053] The integrated extrusion sealing device comprises a piston core shaft 1, an upper joint 2 sleeved at one end of the piston core shaft 1, a pressure transmission core shaft 3 ported at the other end of the piston core shaft 1, a releasing assembly 6 connected at the end of the pressure transmission core shaft 3 away from the upper joint 2, a protection assembly 4 in the shape of a hollow cylinder sleeved on the piston core shaft 1, the protection assembly 4 connected to the inner wall of the upper joint 2 and the outer wall of the upper joint 2, the pressure transmission core shaft 3 sleeved on the inner wall of the protection assembly 4 close to the side wall of the piston core shaft 1, a connecting assembly 5 in the shape of a hollow cylinder sleeved on the pressure transmission core shaft 3, the connecting assembly 5 ported on the protection assembly 4, the connecting assembly 5 ported on the releasing assembly 6, and the releasing assembly 6 and the connecting assembly 5 having holes at opposite positions of the side wall.

[0054] The protection assembly 4 comprises an upper piston 8 sleeved on the side wall of the piston core shaft 1, the upper piston 8 arranged close to the upper joint 2, a starting piston 9 sleeved on the outer wall of the upper piston 8 close to the upper joint 2, the starting piston 9 connected to the upper piston 8 through a starting shear pin 10, the starting piston 9 sleeved on the outer wall of the upper joint 2, the upper piston 8 connected to the upper joint 2 through a starting lock block 11, the port of the starting piston 9 ported on the port of the upper joint 2, the piston core shaft 1 and the pressure transmission core shaft 3 having intermediate pistons 12 sleeved on the outer wall thereof, the outer wall of the intermediate piston 12 and the outer wall of the upper piston 8 away from the upper joint 2 jointly sleeving an outer piston cylinder 13, and the outer wall of the outer piston cylinder 13, the outer wall of the upper joint 2 and the outer wall of the starting piston 9 jointly sleeving a fixed outer cylinder 38.

[0055] The connecting assembly 5 comprises a lower piston 14 sleeved on the outer wall of the pressure transmission core shaft 3, the port of the lower piston 14 ported on the port of the intermediate piston 12, the lower piston 14 sleeving a thrust cylinder 15 away from the outer wall of the upper joint 2, the lower piston 14 sleeving the inner wall of the outer piston cylinder 13 close to the outer wall of the upper piston 8, and the port of the outer piston cylinder 13 ported on the port of the thrust cylinder 15.

[0056] The releasing assembly 6 comprises an outer fixed assembly 16 and an adjusting assembly 17, the outer fixed assembly 16 comprising a setting core shaft 18 sleeved on the outer wall of the pressure transmission core shaft 3, the setting core shaft 18 connected to the pressure transmission core shaft 3 through a releasing shear pin 19, the setting core shaft 18 connected to a first slip 21 through a setting shear pin 20 close to the side wall of the upper joint 2, the side wall of the setting core shaft 18 away from the first slip 21 direction sequentially sleeving an upper vertebral body 22, a first glue barrel 23, a spacer ring 24, a second glue barrel 25, a lower vertebral body 26, a second slip 27 and a lower pressing cap 39, the upper vertebral body 22 matched with the first slip 21, the upper vertebral body 22 connected to the setting core shaft 18 through a lock ring 41, the lower vertebral body 26 matched with the second slip 27, the second slip 27 connected to the port of a limiting ring 28, the setting core shaft 18 away from the second slip 27 end connected to a hollow lower pressing cap 39, and the side wall of the setting core shaft 18 between the lower pressing cap 39 and the limiting ring 28 having a liquid passing hole 40.

[0057] The adjusting assembly 17 comprises a ball seat 29 connected with the inner wall of the pressure transmission mandrel 3, the ball seat 29 is connected with the setting mandrel 18 through a connecting shear pin 30, the ball seat 29 is matched with a pressure ball 31 near one end of the upper joint 2, the outer wall of the pressure transmission mandrel 3 is sleeved with a connecting claw 32 at the port away from the upper joint 2, the connecting claw 32 is connected with a sealing column 33, the inner wall of the setting mandrel 18 is sleeved with the sealing column 33, a lower pressing cap 39 exists in a column space in the upper joint 2, the column space is matched with a T-shaped sealing piston 34, the sealing piston 34 is matched with the pressure transmission mandrel 3 at the port away from the upper joint 2, the pressure transmission mandrel 3 is hook-shaped at the port near the sealing piston 34, the outer wall of the pressure transmission mandrel 3 is connected with the inner wall of the sealing column 33, the lateral wall of the pressure transmission mandrel 3 is provided with a water permeation hole 35, a rectangular activity space is arranged between the pressure transmission mandrel 3 and the setting mandrel 18, the activity space is arranged near the second slip 27, and the activity space is matched with the connecting claw 32.

[0058] The outer wall of the sealing column 33 is provided with a plurality of arc-shaped grooves 36 along the axial direction of the sealing column 33, and the arc-shaped grooves 36 are matched with sealing rings 37.

[0059] The setting mandrel 18 is connected with the lower vertebral body 26 through the guide key 7.

[0060] The connecting claw 32 is arranged between the liquid passing hole 40 and the water permeation hole 35.

[0061] The transverse and longitudinal connecting portions of the sealing piston 34 are prone to breakage.

Claims

1. An integrated extrusion sealing device, characterized by, The utility model provides a piston core shaft (1) one end sleeve joint has upper joint (2), piston core shaft (1) other end adheres and transmits pressure core shaft (3) port, transmits pressure core shaft (3) far from upper joint (2) port place is connected with the release assembly (6), the piston core shaft (1) outer sleeve has the protection assembly (4) of hollow cylinder, the protection assembly (4) is close to upper joint (2) inner wall and is connected with upper joint (2) outer wall, transmits pressure core shaft (3) close to piston core shaft (1) side wall and protection assembly (4) inner wall sleeve joint, transmits pressure core shaft (3) outer sleeve has the connecting assembly (5) of hollow cylinder, the connecting assembly (5) and protection assembly (4) port place adhere, the connecting assembly (5) and release assembly (6) adhere, release assembly (6) and connecting assembly (5) side wall opposite position all are equipped with hole.

2. The integrated extrusion and sealing apparatus of claim 1, wherein, The protection assembly (4) includes an upper piston (8) sleeved on the side wall of the piston core shaft (1), the upper piston (8) is arranged close to the upper joint (2), the upper piston (8) is sleeved with a starting piston (9) close to the upper joint (2), the starting piston (9) is connected with the upper piston (8) through a starting shear pin (10), the starting piston (9) is sleeved with the outer wall of the upper joint (2), the upper piston (8) and the upper joint (2) are connected through a starting lock block (11), the port of the starting piston (9) is adhered with the port of the upper joint (2), the outer wall of the piston core shaft (1) and the outer wall of the transmission pressure core shaft (3) are sleeved with an intermediate piston (12), the outer wall of the intermediate piston (12) and the outer wall of the upper piston (8) away from the upper joint (2) are jointly sleeved with a piston outer cylinder (13), the outer wall of the piston outer cylinder (13), the outer wall of the upper joint (2) and the outer wall of the starting piston (9) are jointly sleeved with a fixed outer cylinder (38).

3. The integrated extrusion and sealing apparatus of claim 2, wherein, The connecting assembly (5) includes a lower piston (14) sleeved on the outer wall of the transmission pressure core shaft (3), the port of the lower piston (14) is adhered with the port of the intermediate piston (12), the lower piston (14) is sleeved with a thrust cylinder (15) away from the outer wall of the upper joint (2), the lower piston (14) is sleeved with the inner wall of the piston outer cylinder (13) close to the outer wall of the upper piston (8), the port of the piston outer cylinder (13) is adhered with the port of the thrust cylinder (15).

4. The integrated extrusion and sealing apparatus of claim 3, wherein, The releasing assembly (6) comprises an external fixing assembly (16) and an adjusting assembly (17), the external fixing assembly (16) comprises a setting casing (18) which is sleeved on the outer wall of the pressure transmission casing (3), the setting casing (18) is connected with the pressure transmission casing (3) through a releasing shear pin (19), the setting casing (18) is connected with a first slip (21) through a setting shear pin (20) near the side wall of the upper joint (2), the side wall of the setting casing (18) is sequentially sleeved with an upper cone (22), a first rubber barrel (23), a spacer ring (24), a second rubber barrel (25), a lower cone (26), a second slip (27) and a lower pressing cap (39) away from the first slip (21), the upper cone (22) is matched with the first slip (21), the upper cone (22) is connected with the setting casing (18) through a locking ring (41), the lower cone (26) is matched with the second slip (27), the second slip (27) is connected with a limiting ring (28) port, the setting casing (18) is connected with a hollow lower pressing cap (39) at one end away from the second slip (27), a liquid passing hole (40) is arranged on the side wall of the setting casing (18) between the lower pressing cap (39) and the limiting ring (28).

5. The integrated extrusion and sealing apparatus of claim 4, wherein, The adjusting assembly (17) comprises a ball seat (29), the ball seat (29) is connected with the inner wall of the pressure transmission casing (3), the ball seat (29) is connected with the setting casing (18) through a connecting shear pin (30), the ball seat (29) is matched with a pressure ball (31) near one end of the upper joint (2), the outer wall of the pressure transmission casing (3) is sleeved with a connecting claw (32) at the port away from the upper joint (2), the connecting claw (32) is connected with a sealing column (33), the inner wall of the setting casing (18) is sleeved with the sealing column (33), the lower pressing cap (39) is matched with a T-shaped sealing piston (34) in the inner space of the upper joint (2), the sealing piston (34) is matched with the pressure transmission casing (3) away from the port of the upper joint (2), the pressure transmission casing (3) is hook-shaped near the port of the sealing piston (34), the outer wall of the pressure transmission casing (3) is connected with the inner wall of the sealing column (33), the side wall of the pressure transmission casing (3) is provided with a water permeating hole (35), the pressure transmission casing (3) and the setting casing (18) are provided with a rectangular activity space therebetween, the activity space is arranged near the second slip (27), and the activity space is arranged in cooperation with the connecting claw (32).

6. The integrated extrusion and sealing apparatus of claim 5, wherein, The outer wall of the sealing column (33) is provided with a plurality of arc-shaped grooves (36) along the axial direction of the sealing column (33), and the arc-shaped grooves (36) are matched with sealing rings (37).

7. The integrated extrusion and sealing apparatus of claim 6, wherein, The setting casing (18) is connected with the lower cone (26) through a guide key (7).

8. The integrated extrusion and sealing apparatus of claim 7, wherein, The connecting claw (32) is arranged between the liquid passing hole (40) and the water permeating hole (35).

9. The integrated extrusion and sealing apparatus of claim 8, wherein, The transverse and longitudinal connecting portions of the sealing piston (34) are prone to breakage.

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