Mechanical-hydraulic composite setting packer

Abstract

The utility model relates to the technical field of oil and gas development well completion, in particular to a mechanical-hydraulic composite setting packer. Comprising an upper connector, a center pipe, a rubber sleeve assembly, a cone, a slip assembly, a transposition assembly, a hydraulic assembly and a lower connector, the upper end of the center pipe is connected with the upper connector, the lower end of the center pipe is connected with the lower connector, and the center pipe is sleeved with the rubber sleeve assembly, the cone, the slip assembly, the transposition assembly and the hydraulic assembly; the end, away from the upper connector, of the rubber sleeve assembly is fixedly connected with the cone, the slip assembly is located below the cone, and the end, away from the cone, of the slip assembly is connected with the transposition assembly. Mechanical and hydraulic composite setting is achieved, meanwhile, mechanical setting and hydraulic setting are independent of each other, working efficiency is guaranteed, operation risks are reduced, and economic losses caused by packer replacement due to setting failure are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas development and completion, in particular to a machine-liquid composite setting packer. Background Art

[0002] A packer is a downhole tool installed in an oil and gas well to seal the annulus, isolate the target layer, control the injection or production of fluids, and withstand a certain pressure difference. Packers are usually divided into hydraulic packers, mechanical packers, and self-sealing or expansion packers according to the setting method.

[0003] At present, in oil and gas wells with relatively complex well conditions such as lost circulation wells and ultra-deep wells, mechanical packer replacement failures or hydraulic system failures of hydraulic packers often occur, resulting in the packer being unable to be set normally. The only way is to lift the tubing string and replace the packer, which seriously delays time, increases operational risks, and causes great economic losses.

[0004] Therefore, there is an urgent need to provide a mechanical-hydraulic composite sealing packer, which, compared with the existing technology, can realize mechanical and hydraulic composite sealing, and the mechanical sealing and hydraulic sealing are independent of each other. Utility Model Content

[0005] The utility model solves the technical problems existing in the prior art and provides a machine-liquid composite setting packer.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A machine-liquid composite sealing packer comprises an upper joint, a center tube, a rubber cartridge assembly, a cone, a slip assembly, a transposition assembly, a hydraulic assembly and a lower joint, wherein the upper end of the center tube is connected to the upper joint, and the lower end of the center tube is connected to the lower joint, the rubber cartridge assembly, the cone, the slip assembly, the transposition assembly and the hydraulic assembly are all sleeved on the outside of the center tube, the lower end of the upper joint is connected to the rubber cartridge assembly, the end of the rubber cartridge assembly away from the upper joint is fixedly connected to the cone, the slip assembly is located below the cone, the end of the slip assembly away from the cone is connected to the transposition assembly, and the upper end of the hydraulic assembly extends into the transposition assembly.

[0008] Furthermore, the hydraulic assembly includes a hydraulic cylinder and a hydraulic piston, the hydraulic cylinder and the hydraulic piston are both sleeved outside the central tube, the hydraulic cylinder is connected to the central tube, the hydraulic cylinder is internally connected to the hydraulic piston, and the hydraulic piston extends into the interior of the transposition assembly.

[0009] Furthermore, the hydraulic piston and the hydraulic cylinder are connected via a setting pin.

[0010] Furthermore, the hydraulic assembly also includes a second connecting tube, which is sleeved on the center tube, the second connecting tube is threadedly connected to the center tube, the second connecting tube is located between the center tube and the hydraulic cylinder, and the second connecting tube is connected to the hydraulic cylinder through an unsealing pin.

[0011] Furthermore, the central tube is provided with a through hole, and the central tube is communicated with the interior of the hydraulic cylinder through the through hole.

[0012] Furthermore, a locking ring is embedded in the inner wall of the hydraulic cylinder, and a rack portion is provided on the outer wall of the hydraulic piston. The rack portion extends into the interior of the locking ring, and the rack portion can only move upward relative to the locking ring.

[0013] Furthermore, the transposition assembly includes a transposition body and a transposition groove, the transposition body is sleeved on the outer wall of the central tube, the transposition groove is arranged inside the transposition body, the outer wall of the central tube is provided with a lug, and the lug is slidably connected in the transposition groove.

[0014] Furthermore, the transposition groove comprises a short groove and a long groove which are connected, the short groove is located above the long groove, the long groove extends along the axial direction of the transposition body, and the short groove extends along the circumferential direction of the transposition body.

[0015] Furthermore, the cava assembly includes a support, a plurality of cava and a first connecting tube, the support and the first connecting tube are both sleeved on the outside of the central tube, the upper end of the support is connected to the plurality of cava, the lower end of the support is connected to the first connecting tube, the plurality of cava are in contact with the cone, and the first connecting tube is connected to the transposition assembly.

[0016] Furthermore, the inner wall of the first connecting cylinder is provided with a plurality of grooves at one end away from the support, and the lower end of the grooves is open; the hydraulic piston comprises a cylindrical portion and a protruding portion, the cylindrical portion is connected to the hydraulic cylinder, and the cylindrical portion is provided with a plurality of protruding portions spaced along the circumference thereof at one end away from the hydraulic cylinder;

[0017] When the lug is located in the short slot, the protrusions and the grooves are arranged alternately; when the lug is located in the long slot, the protrusions and the grooves are arranged correspondingly.

[0018] Furthermore, the protruding portion is provided with a clearance groove, the clearance groove is extended along the axial direction of the protruding portion, and the lug is arranged through the clearance groove.

[0019] Further, the rubber cylinder assembly includes a first rubber cylinder, a second rubber cylinder and a spacer ring, two first rubber cylinders are provided, the second rubber cylinder is arranged between the two first rubber cylinders, the upper end of the second rubber cylinder is connected to the upper first rubber cylinder through the spacer ring, the lower end of the second rubber cylinder is connected to the lower first rubber cylinder through the spacer ring, the upper first rubber cylinder is fixedly connected to the upper joint, and the lower first rubber cylinder is fixedly connected to the cone.

[0020] Furthermore, the first rubber tube is made of a hard material, and the second rubber tube is made of an elastic material.

[0021] Furthermore, the second rubber cylinders are provided in plurality, and two adjacent second rubber cylinders are connected via the spacer ring.

[0022] Furthermore, one end of the outer wall of the cone close to the slip assembly is a tapered surface, and the outer diameter of the tapered surface gradually decreases from the end away from the slip assembly to the end close to the slip assembly.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] When the utility model completes the sealing, the cava is subjected to the force of the upper cone and the force of the lower hydraulic piston. Similarly, the second rubber cylinder is subjected to the dual force of the cone and the hydraulic piston, so the sealing is doubly guaranteed. In addition, the mechanical sealing and the hydraulic sealing are independent of each other. After any one of the sealing methods fails, the other sealing method can ensure normal sealing without replacing the packer, thus ensuring working timeliness, reducing operation risks, and avoiding economic losses caused by replacing the packer due to sealing failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] Description of reference numerals:

[0027] 1. Upper joint; 2. Rubber cylinder assembly; 21. First rubber cylinder; 22. Second rubber cylinder; 23. Spacer ring; 3. Cone; 4. Slip; 5. Support; 6. Center tube; 7. First connecting tube; 71. Groove; 8. Positioning pin; 9. Lug; 10. Transposition assembly; 101. Transposition body; 102. Transposition groove; 11. Hydraulic piston; 111. Cylinder; 112. Protruding part; 113. Displacement groove; 114. Rack part; 12. Hydraulic cylinder; 13. Sealing pin; 14. Unsealing pin; 15. Lower joint; 16. Second connecting tube; 17. Locking ring. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be clearly described below in conjunction with the accompanying drawings. Obviously, the described embodiments are not all embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model. It should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the accompanying drawings. It is only for the convenience of describing the utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] Example

[0030] like Figure 1 As shown, this embodiment provides a mechanical-liquid composite setting packer, including an upper joint 1, a central tube 6, a rubber cartridge assembly 2, a cone 3, a slip assembly, a transposition assembly 10, a hydraulic assembly and a lower joint 15, the upper end of the central tube 6 is connected to the upper joint 1, the lower end of the central tube 6 is connected to the lower joint 15, the end of the upper joint 1 away from the central tube 6 (the upper end of the upper joint 1) is connected to the completion string, the lower end of the upper joint 1 is a metric thread buckle, and the lower end of the upper joint 1 is connected to the central tube 6 through the metric thread buckle; the rubber cartridge assembly 2, the cone 3, the slip assembly, the transposition assembly 1 0. The hydraulic components are all sleeved on the outside of the central tube 6; the upper end of the rubber cartridge component 2 is fixedly connected to the lower end of the upper joint 1, and the lower end of the rubber cartridge component 2 is fixedly connected to the cone 3. The cone 3 and the rubber cartridge component 2 are both movably connected to the central tube 6; a slip assembly is arranged below the cone 3, and a transposition assembly 10 is connected below the slip assembly. The transposition assembly 10 is slidingly connected to the central tube 6, and the slip assembly slides relative to the central tube 6 together with the transposition assembly 10, and the upper end of the hydraulic component extends into the interior of the transposition assembly 10 through the lower end of the transposition assembly 10, and the hydraulic component is used to drive the slip assembly to seal.

[0031] The rubber cylinder assembly 2 includes a first rubber cylinder 21, a second rubber cylinder 22 and a spacer ring 23. There are two first rubber cylinders 21, and a second rubber cylinder 22 is arranged between the two first rubber cylinders 21. The upper end of the second rubber cylinder 22 is connected to the upper first rubber cylinder 21 through the spacer ring 23, and the lower end of the second rubber cylinder 22 is also connected to the lower second rubber cylinder 22 through the spacer ring 23. The first rubber cylinder 21, the second rubber cylinder 22 and the spacer ring 23 are all sleeved on the outer wall of the central tube 6. A plurality of second rubber cylinders 22 can also be arranged between the two first rubber cylinders 21 (this structure is not shown in the figure), and two adjacent second rubber cylinders 22 are connected by the spacer ring 23; the first rubber cylinder 21 is made of hard material, and the second rubber cylinder 22 is made of elastic material. When the seal is set, the second rubber cylinder 22 expands radially under the action of axial pressure to fill the gap between the rubber cylinder assembly 2 and the inner wall of the casing to play a sealing role. The first rubber cylinders 21 on both sides of the second rubber cylinder 22 play a role in supporting the second rubber cylinder 22.

[0032] The first rubber cylinder 21 located at the bottom is fixedly connected to the cone 3 at one end away from the second rubber cylinder 22. The side wall of the central tube 6 is provided with a slide groove along its axial direction. The inner wall of the cone 3 is integrally connected to a slider, and the slider is slidably connected inside the slide groove to limit the sliding of the cone 3. The slide groove and slider structure are not shown in the figure. The outer wall of the cone 3 is a conical surface at one end close to the cava assembly, and the outer diameter of the conical surface gradually decreases from the end away from the cava assembly to the end close to the cava assembly.

[0033] The cava assembly includes a support 5, multiple cava 4 and a first connecting tube 7. The support 5 is sleeved on the outer wall of the central tube 6. The upper end of the support 5 is connected to multiple cava 4. The multiple cava 4 is distributed at intervals along the circumference of the support 5. The inner walls of all the cava 4 are in contact with the conical surface of the cone 3. When the cava 4 moves upward or the cone 3 moves downward, the cava 4 will be expanded under the action of the cone 3, thereby anchoring the packer provided in this embodiment on the inner wall of the casing. Preferably, 6 cava 4 are arranged; the first connecting tube 7 is located below the support 5, and the first connecting tube 7 is connected to the support 5 by a thread. The first connecting tube 7 is composed of two semi-cylinders, which are sleeved on the outer wall of the central tube 6 and are in contact with each other. The two semi-cylinders are connected to the support 5 by a thread. The lower end of the inner wall of the first connecting tube 7 is provided with multiple grooves 71 with lower ends opened, and the multiple grooves 71 are distributed at the lower ends of the inner walls of the two semi-cylinders.

[0034] The transposition assembly 10 includes a transposition body 101, a transposition groove 102 and a positioning pin 8. The transposition body 101 is sleeved on the outside of the central tube 6. The upper end of the transposition body 101 is connected to the first connecting tube 7 through the positioning pin 8. The inner wall of the transposition body 101 is provided with a transposition groove 102. The transposition groove 102 is L-shaped. The transposition groove 102 includes a long groove and a short groove that are connected. The long groove is extended along the axial direction of the transposition body 101, and the short groove is extended along the circumferential direction of the transposition body 101. The short groove is located at the upper end of the long groove. Figure 1 The structure shown in the transposition groove 102 is a long groove structure, and the short groove structure is not shown in the figure. The outer wall of the central tube 6 is integrally connected with a lug 9, and the lug 9 is slidably connected in the transposition groove 102. When the lug 9 is located in the short groove, the central tube 6 and the slip assembly are locked, and the central tube 6 cannot move up and down relative to the slip assembly; when the lug 9 is located in the long groove, the central tube 6 and the slip assembly are unlocked, and the central tube 6 can move up and down relative to the slip assembly.

[0035] The hydraulic assembly includes a hydraulic cylinder 12, a hydraulic piston 11, a second connecting tube 16, a sealing pin 13 and an unsealing pin 14. The hydraulic cylinder 12 is sleeved on the outer wall of the center tube 6, and the second connecting tube 16 is also sleeved on the outer wall of the center tube 6. The outer wall of the second connecting tube 16 contacts the inner wall of the hydraulic cylinder 12. The second connecting tube 16 is located at the lower end of the inner wall of the hydraulic cylinder 12. The second connecting tube 16 is threadedly connected to the center tube 6. The hydraulic cylinder 12 and the second connecting tube 16 are connected by the unsealing pin 14. When the unsealing pin 14 is cut off, the center tube 6 can only move upward relative to the hydraulic cylinder 12; the hydraulic piston 11 includes a cylindrical portion 111 and a plurality of protrusions 112. The cylindrical portion 111 of the hydraulic piston 11 is connected by the sealing pin 13. The sealing pin 13 is connected to the hydraulic cylinder 12, and the protrusion 112 of the hydraulic piston 11 is arranged away from the hydraulic cylinder 12. The hydraulic piston 11 is provided with a plurality of protrusions 112, and the plurality of protrusions 112 are arranged at intervals along the circumference of the cylindrical portion 111. When the sealing pin 13 is sheared, the hydraulic piston 11 can slide relative to the hydraulic cylinder 12. When the lug 9 is located in the short groove, the protrusion 112 of the hydraulic piston 11 and the groove 71 of the first connecting tube 7 are arranged alternately. When the lug 9 is located in the long groove, the protrusion 112 of the hydraulic piston 11 and the groove 71 of the first connecting tube 7 are arranged correspondingly, and the shape of the groove 71 of the first connecting tube 7 is adapted to the end face shape of the protrusion 112 of the hydraulic piston 11 ; A clearance groove 113 is provided on the protruding portion 112 of the hydraulic piston 11, and the clearance groove 113 is extended along the axial direction of the hydraulic piston 11. The lug 9 passes through the clearance groove 113. When the hydraulic piston 11 moves relative to the hydraulic cylinder 12, the lug 9 will not block the movement of the hydraulic piston 11; a rack portion 114 is provided on the outer wall of the cylindrical portion 111, and a locking ring 17 is embedded in the inner wall of the hydraulic cylinder 12. The locking ring 17 is located below the setting pin 13, and the rack portion 114 extends into the locking ring 17. The locking ring 17 is locked with the rack portion 114. The locking ring 17 is set so that the rack portion 114 can only move upward relative to the locking ring 17. The locking principle of the locking ring 17 and the rack portion 114 is the same as the self-locking The locking principle of the self-locking nylon cable tie is the same, (the self-locking nylon cable tie includes a ratchet in the head of the cable tie and a serrated rack on the nylon belt. The ratchet in the head of the cable tie is designed to be inclined, so that when the nylon belt is tightened, the serrations on the belt and the ratchet engage with each other. When the nylon belt is tightened, the ratchet tightly grasps the serrations to prevent the belt from sliding back, forming a self-locking.), so the inner wall of the locking ring 17 is provided with a ratchet, and the rack portion 114 is a serrated rack, so that the rack portion 114 can move upward relative to the locking ring 17, and the rack portion 114 cannot move downward relative to the locking ring 17; a through hole connected to the hydraulic cylinder 12 is provided on the central tube 6, and the high-pressure liquid inside the hydraulic cylinder 12 flows in and out through the through hole.

[0036] O-rings are used to seal between the upper joint 1 and the completion string, and between the upper joint 1 and the central pipe 6; and O-rings are also used to seal between the lower joint 15 and the central pipe 6.

[0037] The working principle of a mechanical-liquid composite sealing packer provided in the present embodiment is as follows: the upper end of the upper joint 1 is connected to the completion string, and the completion string and the packer provided in the present embodiment are placed inside the casing and lowered. After being lowered to the set position, the center pipe 6 is rotated so that the lug 9 provided on the center pipe 6 is located inside the long groove, and then the center pipe 6 is lowered, and the rubber cylinder assembly 2 and the cone 3 move downward together with the center pipe 6. The cone 3 is blocked by the cava assembly and squeezes the rubber cylinder assembly 2, so that the second rubber cylinder 22 expands radially to perform sealing. At the same time, the cava 4 is expanded under the reaction force of the cone 3 and anchored on the inner wall of the casing to complete the mechanical sealing. The center pipe 6 is lifted, the cava 4 contracts, and the second rubber cylinder 22 contracts radially to achieve mechanical unsealing. Inject high-pressure fluid into the hydraulic cylinder 12. After the high-pressure fluid enters the hydraulic cylinder 12 through the through hole, an upward force is exerted on the hydraulic piston 11. The sealing pin 13 is sheared off, and the hydraulic piston 11 moves upward. The protrusion 112 of the hydraulic piston 11 extends into the groove 71 of the first connecting tube 7 and pushes the slip assembly upward, exerting an upward force on the slip 4. After the hydraulic piston 11 is in contact with the groove 71 of the first connecting tube 7, the high-pressure fluid flows out, and the hydraulic piston 11 and the hydraulic cylinder 12 are locked by the locking ring 17 and the rack part 114, completing the hydraulic sealing. When the hydraulic sealing is released, the center pipe 11 is lifted up. 6. The center tube 6 drives the rubber cylinder assembly 2 and the cone 3 to move upward, the second rubber cylinder 22 contracts radially, the slip 4 contracts, and the center tube 6 drives the second connecting tube 16 to move upward at the same time. The unsealing pin 14 is cut off, and the second connecting tube 16 and the center tube 6 move upward synchronously. The hydraulic piston 11 and the hydraulic cylinder 12 are locked and keep the position unchanged after setting. The distance between the second connecting tube 16 and the hydraulic piston 11 becomes smaller and smaller, and the hydraulic piston 11 leaves the groove 71 of the first connecting tube 7 to realize hydraulic unsealing. When the two sealing methods are used at the same time, mechanical sealing is performed first and then hydraulic sealing. When unsealing, they are performed at the same time.

[0038] When the sealing is completed in this embodiment, the cava 4 is subjected to the force of the upper cone 3 and the force of the lower hydraulic piston 11. Similarly, the second rubber cylinder 22 is subjected to the dual force of the cone 3 and the hydraulic piston 11, so the sealing is doubly guaranteed. In addition, the mechanical sealing and the hydraulic sealing are independent of each other. If any one of the sealing methods fails, the other one can ensure normal sealing without replacing the packer, thereby ensuring working time, reducing operation risks, and avoiding economic losses caused by replacing the packer due to sealing failure.

[0039] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A mechanical-liquid composite setting packer, characterized in that: It includes an upper joint, a center tube, a rubber cartridge assembly, a cone, a slip assembly, a transposition assembly, a hydraulic assembly and a lower joint. The upper end of the center tube is connected to the upper joint, and the lower end of the center tube is connected to the lower joint. The rubber cartridge assembly, the cone, the slip assembly, the transposition assembly and the hydraulic assembly are all sleeved on the outside of the center tube. The lower end of the upper joint is connected to the rubber cartridge assembly, and the end of the rubber cartridge assembly away from the upper joint is fixedly connected to the cone. The slip assembly is located below the cone, and the end of the slip assembly away from the cone is connected to the transposition assembly, and the upper end of the hydraulic assembly extends into the transposition assembly.

2. The mechanical-liquid composite setting packer according to claim 1, characterized in that: The hydraulic assembly includes a hydraulic cylinder and a hydraulic piston. The hydraulic cylinder and the hydraulic piston are both sleeved outside the central tube. The hydraulic cylinder is connected to the central tube. The hydraulic cylinder is internally connected to the hydraulic piston. The hydraulic piston extends into the interior of the transposition assembly.

3. The mechanical-liquid composite setting packer according to claim 2, characterized in that: The hydraulic piston is connected to the hydraulic cylinder via a setting pin.

4. The mechanical-liquid composite setting packer according to claim 2, characterized in that: The hydraulic assembly also includes a second connecting tube, which is sleeved on the center tube, threadedly connected to the center tube, located between the center tube and the hydraulic cylinder, and connected to the hydraulic cylinder via an unsealing pin.

5. The mechanical-liquid composite setting packer according to claim 4, characterized in that: The central tube is provided with a through hole, and the central tube is communicated with the interior of the hydraulic cylinder through the through hole.

6. The mechanical-liquid composite setting packer according to claim 2, characterized in that: A locking ring is embedded in the inner wall of the hydraulic cylinder, and a rack portion is provided on the outer wall of the hydraulic piston. The rack portion extends into the interior of the locking ring, and the rack portion can only move upward relative to the locking ring.

7. The mechanical-hydraulic composite setting packer according to claim 2, characterized in that: The transposition assembly comprises a transposition body and a transposition groove. The transposition body is sleeved on the outer wall of the central tube. The transposition groove is arranged inside the transposition body. The outer wall of the central tube is provided with a lug, and the lug is slidably connected in the transposition groove.

8. The mechanical-hydraulic composite setting packer according to claim 7, characterized in that: The transposition groove comprises a short groove and a long groove which are connected, wherein the short groove is located above the long groove, the long groove extends along the axial direction of the transposition body, and the short groove extends along the circumferential direction of the transposition body.

9. The mechanical-hydraulic composite setting packer according to claim 8, characterized in that: The slip assembly includes a support, a plurality of slips and a first connecting tube. The support and the first connecting tube are both sleeved on the outside of the central tube. The upper end of the support is connected to the plurality of slips, and the lower end of the support is connected to the first connecting tube. The plurality of slips are in contact with the cone, and the first connecting tube is connected to the transposition assembly.

10. The mechanical-hydraulic composite setting packer according to claim 9, characterized in that: The inner wall of the first connecting cylinder is provided with a plurality of grooves at one end away from the support, and the lower end of the grooves is open; the hydraulic piston comprises a cylindrical portion and a protruding portion, the cylindrical portion is connected to the hydraulic cylinder, and the cylindrical portion is provided with a plurality of protruding portions spaced along its circumference at one end away from the hydraulic cylinder; When the lug is located in the short slot, the protrusions and the grooves are arranged alternately; when the lug is located in the long slot, the protrusions and the grooves are arranged correspondingly.

11. The mechanical-hydraulic composite setting packer according to claim 10, characterized in that: The protruding portion is provided with a clearance groove, the clearance groove is extended along the axial direction of the protruding portion, and the lug is arranged through the clearance groove.

12. The mechanical-hydraulic composite setting packer according to claim 1, characterized in that: The rubber cylinder assembly includes a first rubber cylinder, a second rubber cylinder and a spacer ring. Two first rubber cylinders are provided, and the second rubber cylinder is arranged between the two first rubber cylinders. The upper end of the second rubber cylinder is connected to the upper first rubber cylinder through the spacer ring, and the lower end of the second rubber cylinder is connected to the lower first rubber cylinder through the spacer ring. The upper first rubber cylinder is fixedly connected to the upper joint, and the lower first rubber cylinder is fixedly connected to the cone.

13. The mechanical-hydraulic composite setting packer according to claim 12, characterized in that: The first rubber tube is made of hard material, and the second rubber tube is made of elastic material.

14. The mechanical-hydraulic composite setting packer according to claim 12, characterized in that: There are multiple second rubber cylinders, and two adjacent second rubber cylinders are connected by the spacer ring.

15. The mechanical-hydraulic composite setting packer according to claim 1, characterized in that: One end of the outer wall of the cone close to the slip assembly is a tapered surface, and the outer diameter of the tapered surface gradually decreases from the end away from the slip assembly to the end close to the slip assembly.

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