CN209818015U - Recyclable suspension packer - Google Patents

Recyclable suspension packer Download PDF

Info

Publication number
CN209818015U
CN209818015U CN201920628320.XU CN201920628320U CN209818015U CN 209818015 U CN209818015 U CN 209818015U CN 201920628320 U CN201920628320 U CN 201920628320U CN 209818015 U CN209818015 U CN 209818015U
Authority
CN
China
Prior art keywords
ring
slip
joint
mandrel
packer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920628320.XU
Other languages
Chinese (zh)
Inventor
赵永刚
杨晓锋
史敏哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baoji Ruitong Energy Technology Co Ltd
Original Assignee
Baoji Ruitong Energy Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baoji Ruitong Energy Technology Co Ltd filed Critical Baoji Ruitong Energy Technology Co Ltd
Priority to CN201920628320.XU priority Critical patent/CN209818015U/en
Application granted granted Critical
Publication of CN209818015U publication Critical patent/CN209818015U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

The utility model provides a recoverable hangs packer. The recyclable suspension packer comprises a first pipe column body, a second pipe column body, a sealing element and a steel ball which are connected in a matched mode. The utility model solves the problem that the electric pump oil extraction pipe column is difficult to drop or can not be salvaged due to underground corrosion and fracture, and greatly reduces the difficulty of later-stage salvage; furthermore, the utility model discloses can replace conventional hanger or hang the packer, but the recoverable formula hangs packer lower extreme and can hang sleeve pipe screen pipe well completion, can save a large amount of sleeves and expense.

Description

Recyclable suspension packer
Technical Field
The utility model relates to a crude oil and natural gas exploitation field especially relates to a but recovery type hangs packer.
Background
The tail end of the oil pipe of the electric pump well is immersed into underground oil-water and H2S-enriched composite media for a long time at the position close to the electric submersible pump, so that the electric pump well is seriously corroded to cause the danger of oil pipe fracture, the electric submersible pump falls into the well bottom, the later salvaging cannot be performed, and the subsequent operation is influenced.
In the transformation process of a part of wells in old wells, the technical problems of high cost and high expense exist when the existing method is adopted under the conditions of sealing damaged sections of upper casing, deepening and cementing old wells, sealing open hole well sections and the like.
Therefore, there is a need to provide a new retrievable suspension packer to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a but recovery type hangs packer has solved prior art with high costs, the electric submersible pump falls into the shaft bottom, causes the unable salvage in later stage, influences the problem of follow-up operation.
In order to solve the technical problem, the utility model provides a recoverable hangs packer, including the first tubular column body and the second tubular column body, sealing member and the steel ball that cooperate to connect, first tubular column body includes top connection, upper core axle, piston, circlip, catch urceolus, salvages the inner tube, give up the pawl, the ball seat, connecting axle, top shoes, packing element dabber, lower cone, lower clutch; the end part of the upper joint is sleeved on the end part of the upper mandrel, the piston is sleeved on the outer wall of the upper mandrel, the elastic check ring is sleeved on one side, away from the upper joint, of the piston, the salvaging inner cylinder and the lock ring outer cylinder are sequentially sleeved on one side, away from the upper joint, of the upper mandrel, the releasing pawl is arranged at one end, away from the upper joint, of the upper mandrel, the ball seat ring is arranged on the inner side of the releasing pawl, the connecting shaft ring is arranged on the outer side of the releasing pawl, one end of the top shoe and the connecting shaft are connected, and the other end of the top shoe and the connecting shaft are sequentially connected with the rubber cylinder mandrel, the lower cone and the lower joint.
Preferably, the second pipe column body comprises a retaining ring, a piston outer cylinder, a positioning claw, a connecting sleeve, a connecting locking block, an impact joint, a locking ring shaft, a locking ring connecting sleeve, a rubber cylinder, a spacer ring, a shoe sole, an upper cone, a slip upper retaining sleeve, a slip outer cylinder, a slip lower retaining sleeve, a supporting ring, a slip spring, a slip, a thread protector, a shear pin and a starting shear pin; one side of the blocking ring, the positioning claw and the piston outer cylinder is sequentially sleeved on the outer wall of the upper joint, the other side of the connecting sleeve, the connecting locking block, the impact joint, the locking ring shaft, the locking ring connecting sleeve and the piston outer cylinder are sequentially arranged on the outer side of the upper mandrel, the rubber cylinder, the spacer ring and the bottom shoe are sequentially sleeved on the outer wall of the rubber cylinder mandrel, the upper cone, the slip upper blocking sleeve, the slip outer cylinder, the slip lower blocking sleeve, the slip spring and the slip are sequentially sleeved on the outer wall of the rubber cylinder mandrel, the supporting ring is arranged on one side, away from the upper joint, of the ball seat, and the thread protecting sleeve is arranged on the lower joint.
Preferably, the sealing elements are sealing rings and set screws, and the number of the sealing rings is two.
Preferably, the steel ball is arranged in the ball seat.
Compared with the prior art, the utility model provides a pair of recoverable hangs packer has following beneficial effect:
(1) the risk that the electric pump oil production pipe column falls into the well and is difficult to salvage or can not salvage due to underground corrosion and fracture is solved, and the later-period salvage difficulty is greatly reduced; furthermore, the utility model discloses can replace conventional hanger or hang the packer, but the recoverable formula hangs packer lower extreme and can hang sleeve pipe screen pipe well completion, can save a large amount of sleeves and expense.
(2) If the electric submersible pump oil production well does not use a recoverable suspension packer, the well can be broken due to corrosion of a pipe column in the future, the later salvaging difficulty is quite large, and the cost is quite high; therefore, the recyclable hanging packer is hung at the lower end of the electric pump pipe column to prevent the electric pump pipe column from falling into the well, and has great economic value for later fishing.
(3) The completion method has the advantages that the lower end of the recyclable suspension packer is used for suspending the casing or the sieve tube to complete the well, a large amount of casing and cost can be saved, the completion mode is an innovation for the existing suspension tail tube well completion, and the method has high economic value.
Drawings
Fig. 1 is the utility model provides a section structure schematic diagram of a recoverable suspension packer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Please refer to fig. 1, which is a schematic sectional view of a recyclable suspended packer according to the present invention. The recyclable suspended packer comprises a first pipe column body, a second pipe column body, a sealing element and a steel ball which are connected in a matched mode, wherein the first pipe column body comprises an upper joint 1, an upper mandrel 2, a piston 3, an elastic retainer ring 4, a locking ring outer cylinder 5, a salvaging inner cylinder 6, a releasing pawl 7, a ball seat 8, a connecting shaft 9, a top shoe 10, a rubber cylinder mandrel 11, a lower mandrel 12, a lower cone 13 and a lower joint 14; the end part of the upper joint 1 is sleeved on the end part of the upper mandrel 2, the piston 3 is sleeved on the outer wall of the upper mandrel 2, the elastic retainer ring 4 is sleeved on one side, away from the upper joint 1, of the piston 3, the salvaging inner cylinder 6 and the locking ring outer cylinder 5 are sequentially sleeved on one side, away from the upper joint 1, of the upper mandrel 2, the releasing pawl 7 is arranged at one end, away from the upper joint 1, of the upper mandrel 2, the ball seat 8 is annularly arranged on the inner side of the releasing pawl 7, the connecting shaft 9 is annularly arranged on the outer side of the releasing pawl 7, one end of the top shoe 10 is connected with the connecting shaft 9, and the other end of the top shoe is sequentially connected with the rubber cylinder mandrel 11, the lower mandrel 12, the lower cone 13 and the lower joint 14.
The second pipe column body comprises a retaining ring 15, a piston outer cylinder 16, a positioning claw 17, a connecting sleeve 18, a connecting locking block 19, an impact joint 20, a locking ring shaft 21, a locking ring 22, a locking ring connecting sleeve 23, a rubber cylinder 24, a spacer ring 25, a shoe 26, an upper cone 27, a slip upper retaining sleeve 28, a slip outer cylinder 29, a slip lower retaining sleeve 30, a supporting ring 31, a slip spring 32, a slip 33, a thread protector 34, a shear pin 35 and a starting shear pin 36; one side of the retaining ring 15, the positioning claw 17 and the piston outer cylinder 16 is sequentially sleeved on the outer wall of the upper joint 1, the other side of the connecting sleeve 18, the connecting locking block 19, the impact joint 20, the locking ring shaft 21, the locking ring 22, the locking ring connecting sleeve 23 and the piston outer cylinder 16 is sequentially arranged on the outer side of the upper mandrel 2, the rubber cylinder 24, the spacer ring 25 and the shoe 26 are sequentially sleeved on the outer wall of the rubber cylinder mandrel 11, the upper cone 27, the slip upper retaining sleeve 28, the slip outer cylinder 29, the slip lower retaining sleeve 30, the slip spring 32 and the slip 33 are sequentially sleeved on the outer wall of the rubber cylinder mandrel 11, the supporting ring 31 is annularly arranged on one side of the ball seat 8, which is far away from the upper joint 1, and the thread protector 34 is sleeved on the lower joint 14.
The sealing elements are sealing rings and set screws 49, and the number of the sealing rings is 11. Specifically, the seal rings include a first seal ring 37, a second seal ring 38, a third seal ring 39, a fourth seal ring 40, a fifth seal ring 41, a sixth seal ring 42, a seventh seal ring 43, an eighth seal ring 44, a ninth seal ring 45, a tenth seal ring 46, and an eleventh seal ring 47.
The steel ball 48 is arranged in the ball seat 8.
The working principle of the recovery hanging packer is as follows:
1. setting seal
Firstly, a packer pipe column is lowered to the designed well depth, a steel ball 48 is thrown into the pipe column, the pressure is increased to 18-20MPa, and the packer is set;
pressurizing the annular space to 15MPa, and verifying the sealing performance of the rubber cylinder 24;
2. releasing gadget
After the seal is checked to be correct, the interior of the pipe column is continuously pressurized to 24-26MPa to cut off the ball seat shear pin, the ball seat 8 descends, the support ring 31 descends, and the releasing pawl 7 loses support; the pipe column is lifted up directly to realize releasing;
secondly, if the lifting releasing meets the block, the ball seat 8 is not opened, at the moment, the right-handed pipe column is rotated for 9-10 circles, so that the thread of the split releasing pawl 7 is completely released from the lower core shaft 12, and then the pipe column is directly lifted to realize releasing.
3. Deblocking
Go into the formula that can move back and drag for the lance, after the position sleeve lower extreme face of fishing for the lance contacts with the last terminal surface of impact joint 20, continue to transfer the tubular column, the split slips is pressed into interior fishing barrel, directly lifts 8-10t and cuts end deblocking shear pin 36, continues to lift the instrument deblocking.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (4)

1. A recyclable suspension packer is characterized by comprising a first pipe column body, a second pipe column body, a sealing element and a steel ball which are connected in a matched mode, wherein the first pipe column body comprises an upper joint, an upper mandrel, a piston, an elastic retainer ring, a locking ring outer cylinder, a salvaging inner cylinder, a releasing pawl, a ball seat, a connecting shaft, a top shoe, a rubber cylinder mandrel, a lower cone and a lower joint; the end part of the upper joint is sleeved on the end part of the upper mandrel, the piston is sleeved on the outer wall of the upper mandrel, the elastic check ring is sleeved on one side, away from the upper joint, of the piston, the salvaging inner cylinder and the lock ring outer cylinder are sequentially sleeved on one side, away from the upper joint, of the upper mandrel, the releasing pawl is arranged at one end, away from the upper joint, of the upper mandrel, the ball seat ring is arranged on the inner side of the releasing pawl, the connecting shaft ring is arranged on the outer side of the releasing pawl, one end of the top shoe and the connecting shaft are connected, and the other end of the top shoe and the connecting shaft are sequentially connected with the rubber cylinder mandrel, the lower cone and the lower joint.
2. The retrievable suspension packer of claim 1, wherein the second tubular string comprises a retainer ring, a piston outer barrel, a positioning claw, a connecting sleeve, a connecting lock block, an impact joint, a lock ring shaft, a lock ring connecting sleeve, a rubber barrel, a spacer ring, a shoe, an upper cone, a slip upper retainer, a slip outer barrel, a slip lower retainer, a support ring, a slip spring, a slip, a retaining wire, a shear pin, and a start shear pin; one side of the blocking ring, the positioning claw and the piston outer cylinder is sequentially sleeved on the outer wall of the upper joint, the other side of the connecting sleeve, the connecting locking block, the impact joint, the locking ring shaft, the locking ring connecting sleeve and the piston outer cylinder are sequentially arranged on the outer side of the upper mandrel, the rubber cylinder, the spacer ring and the bottom shoe are sequentially sleeved on the outer wall of the rubber cylinder mandrel, the upper cone, the slip upper blocking sleeve, the slip outer cylinder, the slip lower blocking sleeve, the slip spring and the slip are sequentially sleeved on the outer wall of the rubber cylinder mandrel, the supporting ring is arranged on one side, away from the upper joint, of the ball seat, and the thread protecting sleeve is arranged on the lower joint.
3. The retrievable suspension packer of claim 1, wherein the sealing elements are sealing rings and set screws, and the number of the sealing rings is one.
4. The retrievable suspension packer of claim 1, wherein the steel ball is disposed within the ball seat.
CN201920628320.XU 2019-05-05 2019-05-05 Recyclable suspension packer Active CN209818015U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920628320.XU CN209818015U (en) 2019-05-05 2019-05-05 Recyclable suspension packer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920628320.XU CN209818015U (en) 2019-05-05 2019-05-05 Recyclable suspension packer

Publications (1)

Publication Number Publication Date
CN209818015U true CN209818015U (en) 2019-12-20

Family

ID=68882478

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920628320.XU Active CN209818015U (en) 2019-05-05 2019-05-05 Recyclable suspension packer

Country Status (1)

Country Link
CN (1) CN209818015U (en)

Similar Documents

Publication Publication Date Title
CN111075388B (en) Hydraulic releasing packer and method for preventing midway setting
CN215292438U (en) Recyclable oil pipe bridge plug
CN109138880B (en) Bidirectional anchor
CN108547589B (en) Method for producing tubular column without killing well by electric setting recoverable hanging packer
CN101864923A (en) Split type anchor suspension packer
CN203905888U (en) Mechanical retrievable packer
CN110617025A (en) Pumping type casing pipe plugging tool for tubing running without pressure and using method thereof
CN102797429A (en) Suspending releasing sand preventing completion packer
CN113494259B (en) Coiled tubing suspension device, coiled tubing wellhead mandrel type suspension structure and method
CN209818015U (en) Recyclable suspension packer
CN107542418A (en) High-pressure oil-gas well hydraulic oil pipe anchoring device and its method of work
CN116816308A (en) Oil-free pipe paraffin removal lifting device for small-bore shale oil well
CN210068067U (en) Large-drift-diameter water-proof oil extraction packer
CN106285498B (en) Gas storage injection-production column jacket and use its method
CN201273169Y (en) High-pressure fishing type suspension packing tool
CN201092845Y (en) Hydraulic pressure, double back-off hand type dragable bridge plug
CN214944177U (en) CO (carbon monoxide)2Oil well driving non-killing oil production pipe column
CN210134891U (en) Safety joint for sand-proof screen pipe and sand-proof screen pipe
CN211448602U (en) Pumping type casing pipe plugging tool for pressing oil pipe without pressure
RU2203386C2 (en) String disconnector
CN111058792A (en) Coiled tubing perforation-free under-pressure operation-free well completion device and method
CN114427371A (en) Open hole packer, acid fracturing pipe column and open hole acid fracturing method
CN2580095Y (en) Hydraulic collision pressure type well completion pipe string suspension packer
CN209908439U (en) Hydraulic anchoring type hanger
CN110685625A (en) Hydraulic anti-jack and anti-drop tool

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant