CN207332799U - A kind of down-hole casing reinforces benefit and connects device of slipping out of the hand - Google Patents
A kind of down-hole casing reinforces benefit and connects device of slipping out of the hand Download PDFInfo
- Publication number
- CN207332799U CN207332799U CN201721371486.5U CN201721371486U CN207332799U CN 207332799 U CN207332799 U CN 207332799U CN 201721371486 U CN201721371486 U CN 201721371486U CN 207332799 U CN207332799 U CN 207332799U
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- CN
- China
- Prior art keywords
- hand
- lock claw
- slipping out
- pull rod
- center pull
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- 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.)
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Abstract
Benefit, which is reinforced, the utility model discloses a kind of down-hole casing connects device of slipping out of the hand, including center pull rod, slip out of the hand lock claw, further include sliding sleeve, the lock claw of slipping out of the hand, sliding sleeve is sleeved on center pull rod outer wall, the lock claw upper end inner wall of slipping out of the hand opens up internal thread, lower end is lock claw end, the center pull rod outer wall opens up external screw thread, the internal thread of the lock claw of slipping out of the hand is screwed on the external screw thread of center pull rod, lock claw lock claw end inner wall of slipping out of the hand is inserted into the sliding sleeve upper end, the sliding sleeve is temporarily fixed in center pull rod by cutting pin, pressure chamber is formed between the sliding sleeve and center pull rod, the center pull rod opens up radial hole i.e. center pull rod inlet, the radial hole makes the center pull rod centre bore inside center pull rod be connected with pressure chamber.The utility model has two kinds of reliable hands free operations, and hydraulic release grip and rotation are slipped out of the hand, and therefore, have the advantages that to slip out of the hand flexible, reliable and stable.
Description
Technical field
Oilfield well casing repairing field is the utility model is related to, specifically a kind of down-hole casing is reinforced benefit and connect
Slip out of the hand device.
Background technology
During oil gas field production development, with the passage of production time, various geologic(al) factors and engineering measure all can
Different degrees of damage is caused to down-hole casing, particularly latter period of oilfield development, oil gas water well casing damage problem day is super serious,
In time, it is to ensure that oil gas field is constantly developed and the important of production is arranged effectively to block and subsidize the down-hole casing reinforced and damaged
Apply.
In the prior art, down-hole casing hydraulic packing reinforcing device often is used in order to casing repair, which adds
Gu device is made of power setting tool and subsidy device, releasing gadget three parts.Power setting tool is mainly by hydraulic cylinder and setting
Set composition.Power setting tool is divided into inside and outside chamber by central tube, and two equally distributed pressure guide holes, pressure are arranged at central tube top
Piston is acted on by pressure guide hole, the relative motion that center, pipe cylinder body produce, produces two equal in magnitude, opposite machines in direction
Tool power.Downward power acts on upper tapered sleeve by setting sleeve, and upward power acts on lower tapered sleeve by pull rod, releasing gadget, upper,
Lower tapered sleeve, which swells metal anchors, to be attached on internal surface of sleeve pipe, achievees the purpose that sealing and reinforcing.When pressure continues to rise, release set quilt
Break, complete to give up.Rear center's connecting tube column is completed in technical requirements construction to slip out of the hand safely, once failure of slipping out of the hand, just not
It can guarantee that being normally carried out for construction, cause down-hole accident.
Application number：201120215258.5 publication date 2012-04-18 discloses a kind of hand release device for casing patch reinforcement.
It solves the problems, such as easily occur taking off not open hand existing for current casing patching reinforcement tools.It includes piston, shear pin, outer
Set, inner sleeve, lock claw and plug, interior put on are equipped with different in nature ball line contact mechanism.It is high, reliable and stable with the rate of slipping out of the hand
Advantage, is mainly used in the device of oil gas water well casing repairing.
Although the principle for also all employing lock claw of patent document disclosed above, overall technical architecture, technique effect and
All differed in the technical problem of solution with the utility model.
Utility model content
Benefit is reinforced the purpose of this utility model is to provide a kind of down-hole casing and connects device of slipping out of the hand, and solution covers in the prior art
Pipe reinforces the technical problem that the construction risk mended and connect is high, measure of slipping out of the hand is single.The utility model has two kinds of reliable hands free operations,
Hydraulic release grip and rotation are slipped out of the hand, and therefore, have the advantages that to slip out of the hand flexible, reliable and stable.
In order to achieve the above objectives, the utility model employs following technical solution, and a kind of down-hole casing reinforcing benefit connects de-
Arm device, including center pull rod, lock claw of slipping out of the hand, further include sliding sleeve, and the lock claw of slipping out of the hand, sliding sleeve are sleeved on center pull rod outer wall,
The lock claw upper end inner wall of slipping out of the hand opens up internal thread, and lower end is lock claw end, and the center pull rod outer wall opens up external screw thread, described de-
The internal thread of hand lock claw is screwed on the external screw thread of center pull rod, and lock claw lock claw end inner wall of slipping out of the hand, institute are inserted into the sliding sleeve upper end
State sliding sleeve to be temporarily fixed in center pull rod by cutting pin, pressure chamber is formed between the sliding sleeve and center pull rod, it is described
Center pull rod opens up radial hole i.e. center pull rod inlet, which makes the center pull rod centre bore inside center pull rod
Connected with pressure chamber.
The lock claw end of the lock claw of slipping out of the hand is splitted structure, forms lock claw of slipping out of the hand and divides valve, is divided into 3-24 valves.
The lock claw end of the lock claw of slipping out of the hand is splitted structure, forms lock claw of slipping out of the hand and divides valve, is divided into 6-12 valves.
The lock claw end of the lock claw of slipping out of the hand is cylindrical to be circumferentially machined with the annular convex platform structure not penetrated through, and forms lock of slipping out of the hand
Pawl divides circular bosses outside valve end.
The lock claw end inner circle of the lock claw of slipping out of the hand circumferentially is machined with the annular convex platform structure not penetrated through, and forms lock of slipping out of the hand
Circular bosses in pawl end, the sliding sleeve outer wall sets sliding sleeve outer lug boss, described to slip out of the hand outside lock claw end inner circle boss lower surface and sliding sleeve
Boss forms inclined-plane and coordinates, and slope is 1-18 degree.
The slope is 6-8 degree.
External thread length in the center pull rod is more than 1-6 times of the internal thread length for lock claw of slipping out of the hand.
External thread length in the center pull rod is more than 2-3 times of the internal thread length for lock claw of slipping out of the hand.
The center pull rod upper end connection becomes buckle joint, and lower end connects lower end cap, and perforation is opened up inside the lower end cap and is become
Footpath hole, reducing hole are the large diameter hole and diameter holes opened up successively from top to bottom, are set inside reducing hole and suppress ball, suppress the straight of ball
Footpath is less than the large diameter hole in reducing hole and is less than the diameter holes in reducing hole.
The utility model has the advantages that compared with prior art：
Inclined-plane is formed by the lower end inclined-plane of circular bosses in the lock claw end of slipping out of the hand and the upper end inclined-plane of sliding sleeve outer lug boss
Coordinate so that device of slipping out of the hand is easier to quickly slip out of the hand；The lock claw of slipping out of the hand divides cylindrical be circumferentially machined with valve end not penetrate through
The boss structure of annular, lock claw of slipping out of the hand divide circular bosses outside valve end to fix on benefit adapter is reinforced so that center pull rod can be opposite
Lock claw of slipping out of the hand rotates.The utility model has two kinds of reliable hands free operations, and hydraulic release grip and rotation are slipped out of the hand, and therefore, has and slips out of the hand
Flexibly, the advantages of reliable and stable.
Brief description of the drawings
Fig. 1 is the single unit system half section structure diagram of the utility model.
Fig. 2 is the lock claw half section structure diagram of slipping out of the hand of the utility model.
Fig. 3 is the sliding sleeve half section structure diagram of the utility model.
Fig. 4 be the utility model hydraulic release grip after single unit system half section structure diagram.
Fig. 5 is single unit system half section structure diagram after the rotation of the utility model is slipped out of the hand.
In figure：1- becomes buckle joint, 2- seals, 3- center pull rods, 4- slip out of the hand lock claw, 4.1- slips out of the hand boss in lock claw end
Platform, 4.2- lock claw of slipping out of the hand divide outside valve end circular bosses, 4.3- lock claw of slipping out of the hand to divide valve, 5- to cut pin, 6- sliding sleeves, 6.1- sliding sleeve evaginations
Platform, 7- center pull rods seal, 8- center pull rods inlet, 8.1- pressure chambers, 8.2- center pull rods centre bore, the sealing of 9- sliding sleeves
Part, 10- lower end caps, 11- lower end caps seal, 12- suppress ball, 13- screw threads.
Embodiment
Detailed description and technology contents in relation to the utility model, coordinate brief description of the drawings as follows, but attached drawing is only to refer to
With purposes of discussion, not it is used for being any limitation as the utility model.
As shown in attached drawing 1 to Fig. 5, a kind of down-hole casing reinforces benefit and connects device of slipping out of the hand, including center pull rod 3, lock claw of slipping out of the hand
4, sliding sleeve 6 is further included, the lock claw of slipping out of the hand, sliding sleeve are sleeved on 3 outer wall of center pull rod, and the lock claw upper end inner wall of slipping out of the hand opens up interior
Screw thread, lower end are lock claw end, and the center pull rod outer wall opens up external screw thread, and the internal thread of the lock claw of slipping out of the hand is screwed in center drawing
On the external screw thread of bar, lock claw lock claw end inner wall of slipping out of the hand is inserted into the sliding sleeve upper end, and the sliding sleeve 6 is temporarily solid by cutting pin 5
It is scheduled in center pull rod 3, pressure chamber 8.1 is formed between the sliding sleeve and center pull rod, the center pull rod opens up radial hole
That is center pull rod inlet 8, the radial hole make the center pull rod centre bore 8.2 inside center pull rod be connected with pressure chamber 8.1.
The center pull rod upper end connection becomes buckle joint 1, and lower end connects lower end cap 10, perforation is opened up inside the lower end cap
Reducing hole, reducing hole are the large diameter hole and diameter holes opened up successively from top to bottom, are set inside reducing hole and suppress ball 12, suppress ball
Diameter be less than large diameter hole in reducing hole and less than the diameter holes in reducing hole.
Screw thread connects center pull rod 3 on the change buckle joint 1, and seal 2 is installed in center pull rod 3, described
Lock claw 4 of slipping out of the hand be connected with 3 screw thread of center pull rod, the sliding sleeve 6 is fixed in center pull rod 3 by cutting pin 5,
Center pull rod inlet 8 on 9 center seal pull rod 3 of center pull rod seal 7 and sliding sleeve seal, the lower end cap 10 with
The lower end screw thread connection of center pull rod 3, suppresses ball 12 and is located in lower end cap 10, lower end cap seal 11 is used for center seal
Pull rod 3 and lower end cap 10.
The 4 lock claw end of lock claw of slipping out of the hand is splitted structure, forms lock claw of slipping out of the hand and divides valve 4.3, is divided into 3~24 valves, most preferably
For 6~12 valves.
The lock claw 4 of slipping out of the hand is connected 13 with 3 screw thread of center pull rod, and the screw thread length in center pull rod 3 is big
In 1~6 times of the screw thread length for lock claw 4 of slipping out of the hand, most preferably 2~3 times.
The lock claw 4 of slipping out of the hand divides valve end is cylindrical to be circumferentially machined with the annular convex platform structure not penetrated through, and formation is slipped out of the hand
Lock claw divides circular bosses 4.2 outside valve end.
The lock claw end inner circle of the lock claw of slipping out of the hand circumferentially is machined with the annular convex platform structure not penetrated through, and forms lock of slipping out of the hand
Circular bosses 4.1 in pawl end, the sliding sleeve outer wall set sliding sleeve outer lug boss 6.1, it is described slip out of the hand lock claw end inner circle boss lower surface with
Sliding sleeve outer lug boss forms inclined-plane and coordinates, and slope is 1~18 degree, most preferably 6~8 degree.
The course of work of the utility model is as described below：
Referring to the drawings 1 to Fig. 5, a kind of down-hole casing of the utility model reinforces benefit and connects device of slipping out of the hand when it is implemented, will
The utility model device mends nozzle assembling with casing reinforcement, is accompanied down using working string into well after design position, connects well
Mouth high pressure pumping unit, carries out casing reinforcement benefit and connects, achieve the purpose that sealing and reinforcing.When pressure continues to rise, hydraulic coupling passes through
The center pull rod centre bore 8.2 of center pull rod 3, then enters pressure chamber 8.1 by center pull rod inlet 8 again, works as hydraulic coupling
When reaching design load, cut pin 5 and cut, the upper end inclined-plane downlink of the sliding sleeve outer lug boss 6.1 of sliding sleeve 6 leaves lock claw end of slipping out of the hand
The lower end inclined-plane of interior circular bosses 4.1, completes to slip out of the hand.
The spare course of work of slipping out of the hand：
When pressure continues to rise, hydraulic coupling is by the center pull rod inlet 8 in center pull rod 3, into pressure chamber
8.1, when hydraulic coupling reaches design load, cut pin 5 do not cut, such sliding sleeve 6 just can not downlink and leave lock of slipping out of the hand
Circular bosses 4.1, do not take off hand in pawl end.Slip out of the hand scheme with regard to needing to start rotation.
Enable rotation to slip out of the hand scheme, rotation becomes buckle joint 1, and drives center pull rod 3, sliding sleeve 6, lower end cap 10 to revolve together
Turn, mend to connect due to casing reinforcement and completed, the adapter of reinforcing benefit is fixed at this time, and lock claw of slipping out of the hand 4 cannot rotate, center
Pull rod 3 rotates downlink relative to lock claw 4 of slipping out of the hand, and the upper end inclined-plane downlink of the sliding sleeve outer lug boss 6.1 of sliding sleeve 6, which is left, slips out of the hand in lock claw end
The lower end inclined-plane of circular bosses 4.1, completes to slip out of the hand.
The above is only the preferred embodiment of the present invention, is not used to limit the scope of the claims of the utility model, its
He uses the equivalence changes of the utility model patent spirit, should all belong to the scope of the claims of the utility model.
Claims (9)
1. a kind of down-hole casing reinforces benefit and connects device of slipping out of the hand, including center pull rod, lock claw of slipping out of the hand, it is characterised in that further includes cunning
Set, the lock claw of slipping out of the hand, sliding sleeve are sleeved on center pull rod outer wall, and the lock claw upper end inner wall of slipping out of the hand opens up internal thread, and lower end is
Lock claw end, the center pull rod outer wall open up external screw thread, and the internal thread of the lock claw of slipping out of the hand is screwed in the external screw thread of center pull rod
On, lock claw lock claw end inner wall of slipping out of the hand is inserted into the sliding sleeve upper end, and the sliding sleeve is temporarily fixed on center pull rod by cutting pin
On, pressure chamber is formed between the sliding sleeve and center pull rod, the center pull rod opens up radial hole i.e. center pull rod inlet,
The radial hole makes the center pull rod centre bore inside center pull rod be connected with pressure chamber.
2. a kind of down-hole casing according to claim 1 reinforces benefit and connects device of slipping out of the hand, it is characterised in that the lock claw of slipping out of the hand
Lock claw end be splitted structure, formation lock claw of slipping out of the hand divides valve, is divided into 3-24 valves.
3. a kind of down-hole casing according to claim 1 or 2 reinforces benefit and connects device of slipping out of the hand, it is characterised in that described to slip out of the hand
The lock claw end of lock claw is splitted structure, forms lock claw of slipping out of the hand and divides valve, is divided into 6-12 valves.
4. a kind of down-hole casing according to claim 1 or 2 reinforces benefit and connects device of slipping out of the hand, it is characterised in that described to slip out of the hand
The lock claw end of lock claw is cylindrical to be circumferentially machined with the annular convex platform structure not penetrated through, and forms lock claw of slipping out of the hand and divides boss outside valve end
Platform.
5. a kind of down-hole casing according to claim 1 or 2 reinforces benefit and connects device of slipping out of the hand, it is characterised in that described to slip out of the hand
The lock claw end inner circle of lock claw is circumferentially machined with the annular convex platform structure not penetrated through, and forms circular bosses in lock claw end of slipping out of the hand, institute
State sliding sleeve outer wall and sliding sleeve outer lug boss is set, the lock claw end inner circle boss lower surface of slipping out of the hand forms inclined-plane with sliding sleeve outer lug boss and matches somebody with somebody
Close, slope is 1-18 degree.
6. a kind of down-hole casing according to claim 5 reinforces benefit and connects device of slipping out of the hand, it is characterised in that the slope
For 6-8 degree.
7. a kind of down-hole casing according to claim 1 or 2 reinforces benefit and connects device of slipping out of the hand, it is characterised in that the center
External thread length on pull rod is more than 1-6 times of the internal thread length for lock claw of slipping out of the hand.
8. a kind of down-hole casing according to claim 1 or 2 reinforces benefit and connects device of slipping out of the hand, it is characterised in that the center
External thread length on pull rod is more than 2-3 times of the internal thread length for lock claw of slipping out of the hand.
9. a kind of down-hole casing according to claim 1 or 2 reinforces benefit and connects device of slipping out of the hand, it is characterised in that the center
The connection of pull rod upper end becomes buckle joint, and lower end connects lower end cap, and perforation reducing hole is opened up inside the lower end cap, and reducing hole is from upper
The large diameter hole and diameter holes opened up successively under and, reducing hole inside, which is set, suppresses ball, and the diameter for suppressing ball is less than in reducing hole
Large diameter hole and less than the diameter holes in reducing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721371486.5U CN207332799U (en) | 2017-10-19 | 2017-10-19 | A kind of down-hole casing reinforces benefit and connects device of slipping out of the hand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721371486.5U CN207332799U (en) | 2017-10-19 | 2017-10-19 | A kind of down-hole casing reinforces benefit and connects device of slipping out of the hand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207332799U true CN207332799U (en) | 2018-05-08 |
Family
ID=62365758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721371486.5U Expired - Fee Related CN207332799U (en) | 2017-10-19 | 2017-10-19 | A kind of down-hole casing reinforces benefit and connects device of slipping out of the hand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207332799U (en) |
-
2017
- 2017-10-19 CN CN201721371486.5U patent/CN207332799U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20181019 |