CN206205835U - A kind of telescopic compensator for hanging cutting tool under water - Google Patents
A kind of telescopic compensator for hanging cutting tool under water Download PDFInfo
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- CN206205835U CN206205835U CN201621162184.2U CN201621162184U CN206205835U CN 206205835 U CN206205835 U CN 206205835U CN 201621162184 U CN201621162184 U CN 201621162184U CN 206205835 U CN206205835 U CN 206205835U
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- compensator
- telescopic
- telescopic shaft
- cutting tool
- under water
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Abstract
The utility model discloses a kind of telescopic compensator for hanging cutting tool under water, including compensator body, telescopic shaft, flexible fairlead, sealing mechanism, retention mechanism, wherein described compensator body is used to accommodate the telescopic shaft, the telescopic shaft is used to carry out flexible compensation to suspension cutting tool, the flexible fairlead part is set on the telescopic shaft, for coordinating transmitting torque with the telescopic shaft, the sealing mechanism is used to close the space that the compensator body is formed with the telescopic shaft, the retention mechanism is used to fix the telescopic shaft with the compensator body.The utility model is in ocean water setting of casing cutting process, telescopic shaft can up and down fluctuate with sea and make cutter automatically move up and down to realize flexible compensation, make cutting knife position constant all the time so as to improve cutting efficiency, and fastener is difficult for drop-off, improves the security of cutting operation.
Description
Technical field
The utility model is related to compensator technical field, more particularly to a kind of flexible benefit for hanging cutting tool under water
Repay device.
Background technology
When even deep water casing cutting operation under water is carried out, the outer suspension cutting tool that we are used is in application process
In, claw has locking and two states of unfreezing to well head., it is necessary to drilling rod rotates after moving down certain distance in releasing process so that
Claw loses external force, departs from well head under spring force, completes solution card motion.In actual cutting operation, often need
Cutter is changed halfway, and this is accomplished by being unlocked in seabed, because cutting blade is easily stuck in sleeve pipe in cutting process,
Moving up and down for drilling rod cannot be realized, i.e., cannot complete unlocking motion, it will cause work accident；Drilling rod in other cutting process
There is upper and lower play；Seabed operation, offshore platform occurs that sink-float to drilling rod, it is necessary to enter up and down due to wave effect
Row heave compensation.
Compensation retractor device of the prior art by the first telescopic shaft 16 as shown in figure 1, first load the first compensator body
15, then the piston for installing sealing ring, connected by screw thread and the first telescopic shaft 16, because the first telescopic shaft 16 is six squares
It is relatively unrotatable, the telescopic shaft 16 of piston 13 and first can only be rotated and connected, and piston 13 is cylindrical and the first compensator body 15
Inner chamber fit clearance is smaller, and in the connection of the inner chamber of the first compensator body 15, so the first benefit must be goed deep into using specific purpose tool
Repay the inner chamber rotary-piston 13 of device body 15 to be attached, so easily damage sealing ring in assembling.Similarly the first locking screw
Female 12 also want the specific purpose tool could to be locked with the first telescopic shaft 16.This kind of structure dismounting maintenance is very inconvenient, and sealing property
It is unreliable, sealing ring will be damaged in assembling process sometimes, lose in sealing function, and operation due to sharp pounding and turn
Dynamic, locking nut and piston are easily threaded off, and cause well accident.
Therefore, prior art has yet to be improved and developed.
Utility model content
In view of the deficiencies in the prior art, the utility model purpose is to provide a kind of for hanging stretching for cutting tool under water
Contracting compensator, it is intended to which expansion compensation device installation and maintenance are very inconvenient in the prior art for solution, and sealing property is unreliable；And
Because sharp pounding and rotation, locking nut and piston are easily threaded off in operation, cause the technical problem of well accident.
The technical solution of the utility model is as follows：
A kind of telescopic compensator for hanging cutting tool under water, wherein, including it is compensator body, telescopic shaft, flexible
Fairlead, sealing mechanism, retention mechanism, wherein the compensator body is used to accommodate the telescopic shaft, the telescopic shaft is used for
Flexible compensation is carried out to suspension cutting tool, the flexible fairlead part is set on the telescopic shaft, for being stretched with described
Contracting axle coordinates transmitting torque, and the inside that the sealing mechanism is used to close the compensator body with the telescopic shaft is formed is empty
Between, the retention mechanism is used to fix the telescopic shaft with the compensator body.
The described telescopic compensator for hanging cutting tool under water, wherein, the sealing mechanism is from left to right successively
It is provided with including sealing ring, first piston, spacer, sealing gasket, second piston, the sealing ring, first piston, spacer, sealing
Pad, second piston close the compensator body and telescopic shaft forms inner space.
The described telescopic compensator for hanging cutting tool under water, wherein, the retention mechanism is included for fixing
The compensator body and the locking nut of the telescopic shaft and the radial direction lock-screw for fixing the locking nut.
The described telescopic compensator for hanging cutting tool under water, wherein, the equal screw thread in compensator body two ends,
Threaded one end jointed rod and suspension cutting tool, the other end are connected with the flexible fairlead by the locking nut screw thread
Connect.
The described telescopic compensator for hanging cutting tool under water, wherein, described telescopic shaft one end is screw thread, connection
Drilling rod and suspension cutting tool, the other end are connected with the locking nut, and the telescopic shaft partially passes through the flexible fairlead.
The described telescopic compensator for hanging cutting tool under water, wherein, described flexible fairlead one end is provided with
Screw thread, is threadedly coupled with the compensator body.
The described telescopic compensator for hanging cutting tool under water, wherein, it is additionally provided with the compensator body
For the passage of the turnover of the gas-liquid in telescopic process lumen body, for the turnover of the gas-liquid in telescopic process lumen body.
The described telescopic compensator for hanging cutting tool under water, wherein, the lock-screw is interior hexagonal tapered end
Lock-screw.
The utility model provides a kind of telescopic compensator for hanging cutting tool under water, and the utility model is in cutting
During, telescopic shaft can realize flexible compensation as cutter are moved up and down, and fastener is difficult for drop-off, improves cutting
The security of operation, while when can ensure to cut off midway allowing blade replacement, outer hanger can be unlocked smoothly with well head, because
Drill string must move down the outer hanger of rotation and well head and can just free during unblock, and blade is often stuck in conduit and cuts in cutting process
Intraoral, cutter hub can not be moved down, and being capable of achieving cutter hub by the indentation of telescopic compensator moves down.
Brief description of the drawings
Fig. 1 is telescopic compensator structural representation of the prior art.
Fig. 2 is a kind of knot for hanging the preferred embodiment of the telescopic compensator of cutting tool under water of the present utility model
Structure schematic diagram.
Fig. 3 is a kind of concrete application embodiment for hanging the telescopic compensator of cutting tool under water of the present utility model
In stretch stroke schematic diagram.
Fig. 4 is of the present utility model a kind of for hanging the quick-fried of the preferred embodiment of the telescopic compensator of cutting tool under water
Fried structural representation.
Specific embodiment
To make the purpose of this utility model, technical scheme and effect clearer, clear and definite, one is entered to the utility model below
Step is described in detail.It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit
The utility model.
The utility model provides a kind of knot for hanging the preferred embodiment of the telescopic compensator of cutting tool under water
Structure schematic diagram, as shown in Figure 2 and Figure 4, telescopic compensator includes compensator body 1, telescopic shaft 9, flexible fairlead 10, sealer
Structure, retention mechanism, wherein compensator body 1 are used to accommodate telescopic shaft 9, and telescopic shaft 9 is used to stretch suspension cutting tool
Compensation, the flexible part of fairlead 10 is set on telescopic shaft 9, and for coordinating transmitting torque with telescopic shaft 9, sealing mechanism is used to seal
The inner space that compensator body 1 is formed with telescopic shaft 9 is closed, retention mechanism is used to fix telescopic shaft 9 and compensator body 1.
Wherein, sealing mechanism is disposed with including sealing ring 4, first piston 5, spacer 6, sealing gasket 7, from left to right
Two pistons 8, sealing ring 4, first piston 5, spacer 6, sealing gasket 7, the closing compensator body of second piston 8 and telescopic shaft form interior
Portion space（Hydrophthalmia）.Wherein sealing gasket 7 is Che Shi sealing gaskets.Not only there is spacer 6 sealing function to also act as guide effect simultaneously.
Retention mechanism is included for fixed compensator body 1 with the locking nut 3 of telescopic shaft 9 and for fixing locking nut
3 radial direction lock-screw 2.Lock-screw is interior hexagonal tapered end lock-screw.Interior hexagonal tapered end marks closely the fixation locking nut of screw 2
3, prevent it from threading off.
The equal screw thread in compensator body two ends, threaded one end jointed rod and suspension cutting tool, the other end and flexible guiding
Set is threadedly coupled by locking nut.Turnover for the gas-liquid in telescopic process lumen body is additionally provided with compensator body
Passage, for the turnover of the gas-liquid in telescopic process lumen body.
Telescopic shaft one end is screw thread, jointed rod and suspension cutting tool, and the other end is connected with locking nut, axle portion of stretching
Divide through flexible fairlead.Specifically, the one end of telescopic shaft 9 is threaded, jointed rod and other downhole tools, and such as suspension is cut
Instrument.The other end is connected with locking nut 3, and six square shafts of telescopic shaft 9 partially pass through flexible fairlead 10.
Flexible fairlead one end is provided with screw thread, is threadedly coupled with compensator body.Specifically, flexible one end of fairlead 10
It is threaded, is threadedly coupled with compensator body 1.Inside is six side inner chambers, and six square shafts with telescopic shaft 9 cooperate,
Realize that moment of torsion is transmitted.
Specifically assemble flow is：Flexible fairlead 10 is inserted in telescopic shaft 9, is sequentially loaded into the other end of telescopic shaft 9
After second piston 8, sealing gasket 7, spacer 6, first piston 5, sealing ring 4, locking nut 3 is threadedly coupled with the lower end of telescopic shaft 9, spiral shell
After line is tightened, fixed by interior hexagonal tapered end lock-screw 2.Because the length of the fairlead 10 that stretches is shorter, locking screw is not influenceed
Female installation and dismounting, because sealing mechanism and retention mechanism are completed in outside, so more convenient, installation sealer
This is partially placed into the chamber of expansion bend body 1 after structure and retention mechanism, by the screw thread of flexible fairlead 10 and the screw thread of expansion bend body 1
It is attached, completes the assembling of telescopic compensator.
The workflow of embodiment is：Under tension state, telescopic shaft 9 is together with locking nut 3, piston edge for telescopic compensator
Compensator body 1 outwards extends the end of flexible fairlead 10；Telescopic shaft 9 is inside contracted in a compressed state, and flexible compensation is realized with this
Function.Distance of stretch out and draw back is as shown in Figure 3.In actual abandoned well cutting process, cutter blade can upper and lower play, telescopic shaft 9 also can be with
Move up and down and realize flexible compensation.And the transmission of moment of torsion is realized, carry out cutting operation.
To sum up, the utility model provides a kind of telescopic compensator for hanging cutting tool under water, including compensator
Body, telescopic shaft, flexible fairlead, sealing mechanism, retention mechanism, wherein the compensator body is used to accommodate described stretching
Axle, the telescopic shaft is used to carry out suspension cutting tool flexible compensation, and the flexible fairlead part is set in described flexible
On axle, for coordinating transmitting torque with the telescopic shaft, the sealing mechanism is stretched for closing the compensator body with described
The inner space that contracting axle is formed, the retention mechanism is used to fix the telescopic shaft with the compensator body.The utility model
In cutting process, telescopic shaft can realize flexible compensation as cutter are moved up and down, and fastener is difficult for drop-off, improve
The security of cutting operation, while when can ensure to cut off midway allowing blade replacement, outer hanger can be unlocked smoothly with well head, this
Because drill string must move down the outer hanger of rotation and well head and can just free during unblock, and blade is often stuck in cutting process
In conduit otch, cutter hub can not be moved down, and at this moment can solve this problem by the indentation of telescopic compensator.
It should be appreciated that application of the present utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
Say, can according to the above description be improved or converted, all these modifications and variations should all belong to the appended power of the utility model
The protection domain that profit is required.
Claims (8)
1. a kind of telescopic compensator for hanging cutting tool under water, it is characterised in that including compensator body, telescopic shaft,
Flexible fairlead, sealing mechanism, retention mechanism, wherein the compensator body is used to accommodate the telescopic shaft, the telescopic shaft
For to suspension cutting tool carry out flexible compensation, the flexible fairlead part is set on the telescopic shaft, for institute
State telescopic shaft and coordinate transmitting torque, the sealing mechanism is used to close the inside that the compensator body is formed with the telescopic shaft
Space, the retention mechanism is used to fix the telescopic shaft with the compensator body.
2. the telescopic compensator for hanging cutting tool under water according to claim 1, it is characterised in that the sealing
Mechanism is disposed with including sealing ring, first piston, spacer, sealing gasket, second piston, the sealing ring, institute from left to right
First piston, the spacer, the sealing gasket, the second piston closing compensator body is stated to be formed with the telescopic shaft
Inner space.
3. the telescopic compensator for hanging cutting tool under water according to claim 1, it is characterised in that the fastening
Mechanism is included for fixing the compensator body with the locking nut of the telescopic shaft and for fixing the locking nut
Lock-screw.
4. the telescopic compensator for hanging cutting tool under water according to claim 3, it is characterised in that the compensation
The equal screw thread in device body two ends, threaded one end jointed rod and suspension cutting tool, the other end pass through institute with the flexible fairlead
State locking nut threaded connection.
5. the telescopic compensator for hanging cutting tool under water according to claim 4, it is characterised in that described flexible
Axle one end is screw thread, jointed rod and suspension cutting tool, and the other end is connected with the locking nut, and the flexible shaft portion is worn
Cross the flexible fairlead.
6. the telescopic compensator for hanging cutting tool under water according to claim 5, it is characterised in that described flexible
Fairlead one end is provided with screw thread, is threadedly coupled with the compensator body.
7. the telescopic compensator for hanging cutting tool under water according to claim 1, it is characterised in that the compensation
The passage of the turnover for the gas-liquid in telescopic process lumen body is additionally provided with device body, in telescopic process lumen body
Gas-liquid turnover.
8. the telescopic compensator for hanging cutting tool under water according to claim 3, it is characterised in that the locking
Screw is interior hexagonal tapered end lock-screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621162184.2U CN206205835U (en) | 2016-10-25 | 2016-10-25 | A kind of telescopic compensator for hanging cutting tool under water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621162184.2U CN206205835U (en) | 2016-10-25 | 2016-10-25 | A kind of telescopic compensator for hanging cutting tool under water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206205835U true CN206205835U (en) | 2017-05-31 |
Family
ID=58757549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621162184.2U Active CN206205835U (en) | 2016-10-25 | 2016-10-25 | A kind of telescopic compensator for hanging cutting tool under water |
Country Status (1)
| Country | Link |
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| CN (1) | CN206205835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458151A (en) * | 2018-12-19 | 2019-03-12 | 贵州高峰石油机械股份有限公司 | A kind of device for being completed at the same time sub-sea drilled wells cutting and salvaging with capping operation |
-
2016
- 2016-10-25 CN CN201621162184.2U patent/CN206205835U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458151A (en) * | 2018-12-19 | 2019-03-12 | 贵州高峰石油机械股份有限公司 | A kind of device for being completed at the same time sub-sea drilled wells cutting and salvaging with capping operation |
| CN109458151B (en) * | 2018-12-19 | 2024-04-09 | 贵州高峰石油机械股份有限公司 | Device for simultaneously completing submarine oil well cutting, fishing and well sealing operation |
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