CN206860153U - A kind of waterpower for being used to cut multilayer sleeve cuts tool - Google Patents
A kind of waterpower for being used to cut multilayer sleeve cuts tool Download PDFInfo
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- CN206860153U CN206860153U CN201720584322.4U CN201720584322U CN206860153U CN 206860153 U CN206860153 U CN 206860153U CN 201720584322 U CN201720584322 U CN 201720584322U CN 206860153 U CN206860153 U CN 206860153U
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Abstract
The utility model discloses a kind of waterpower for being used to cut multilayer sleeve to cut tool, formed by cutting tool body, the body includes drilling rod button, and the drilling rod portion of buckling is threadedly coupled top connection, the body is provided with 3 straight holes axially arranged with movable drain plug, and the body internal surface is provided with sealing group；The sealing group bottom is provided with the piston with spring, and the piston is connected with cutter by bearing pin；The cutter is protruding by being arranged on the body bottom portion fluting, the body is additionally provided with the inclined hole of the connection outside draining of piston, this, which cuts tool, disposably to carry out quick, precisely cutting for 9 5/8 " to 20 " sleeve pipes, simultaneously when completing outermost layer casing-pipe cutting, reach whether accurate judgement completes casing-pipe cutting according to the change of tubing string pressure condition, unnecessary cutting is avoided the occurrence of, is effectively reduced the activity duration, reduces operating cost.
Description
Technical field
The utility model marine oil gas field exploration and development technical field, more particularly to a kind of water for being used to cut multilayer sleeve
Power cuts tool.
Background technology
Abandoned well operation occurs in marine oil gas field exploration and development process.《Offshore oil safety management detailed rules and regulations》Abandoned well pipe
Casing-pipe cutting is distinctly claimed in reason must be below 4 meters of mud line.Marine oil and gas water in field face to sleeve pipe between mud line be 9-5/8 " extremely
20 " sleeve pipe group, therefore multilayer sleeve is cut into the key of marine abandoned well.
Current domestic hydraulic cutter can carry out multilayer sleeve cutting, but often simply coating is irregular hard on cutter surface
Matter alloy, wearability is poor, carries out needing to change cutter during multilayer cutting, wastes the activity duration；Cutter can only simply be cut,
It can not in time judge whether to cut through sleeve pipe, can only rule of thumb be judged, a large amount of useless cuttings be often resulted in, when wasting operation
Between.
Utility model content
For technical problem present in prior art, the utility model provides a kind of waterpower for being used to cut multilayer sleeve
Tool is cut, this, which cuts tool and can disposably be directed to 9-5/8 " to 20 " sleeve pipe, carries out quick, precisely cutting, while completes outermost layer sleeve pipe
During cutting, reach whether accurate judgement completes casing-pipe cutting according to the change of tubing string pressure condition, avoid the occurrence of unnecessary cutting, effectively
The activity duration is reduced, reduces operating cost.
In order to solve technical problem present in prior art, the utility model adopts the following technical scheme that：
A kind of waterpower for being used to cut multilayer sleeve cuts tool, is formed by cutting tool body, the body includes drilling rod button, described
The drilling rod portion of buckling is threadedly coupled top connection, and the body is provided with 3 straight holes axially arranged with movable drain plug, the body
Inner surface is provided with sealing group；The sealing group bottom is provided with the piston with spring, and the piston is connected with cutter by bearing pin；Institute
It is protruding by being arranged on the body bottom portion fluting to state cutter, the body is additionally provided with the oblique of the connection outside draining of piston
Hole.Protection mechanism is additionally provided with the piston, the protection mechanism is made up of alloy shower nozzle, sealing ring and back-up ring；The conjunction
Golden shower nozzle is arranged in piston, and spacing by back-up ring 8, and sealing ring is provided between the alloy shower nozzle and piston, and sealing is closed
Annular space between golden shower nozzle and piston.
The straight hole inner surface has High angle chamfering.
The sealing group is two groups.
It is inserted that the cutter appearance studs with hard alloy, inserted to be shaped as round platform.
Mutual distance between the straight hole is more than the distance between described sealing group.
The utility model beneficial effect：
First, the utility model can disposably complete 9-5/8 " -20 " casing-pipe cutting.
Second, the utility model body is provided with the straight hole with plug, can be needed selectivity installation stifled according to actual job
Head, and can accurate judgement whether complete corresponding casing-pipe cutting, avoid the occurrence of unnecessary cutting, reduce the activity duration
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is body straight hole inner surface structure schematic diagram.
Fig. 3 is the inserted structural representation in cutter surface.
Fig. 4 calculates cutting for simulation and completes front and rear work pump pressure comparison diagram.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, the utility model, which provides a kind of waterpower for being used to cut multilayer sleeve, cuts tool, by setting up a separatist regime by force of arms body structure
Into the body includes body 1, and the top of body 1 is threadedly coupled top connection 2, and the body 1 is provided with band movable drain plug
The straight hole (31,32,33) that 3 of (311,321,331) axially arrange, as shown in Fig. 2 the straight hole (31,32,33) inner surface
There is High angle chamfering.Mutual distance between the straight hole (31,32,33) is more than the distance between described sealing group (41,42).
The body 1 is additionally provided with the inclined hole 8 of connection 5 outside draining of piston.The straight hole is in the position of body, respectively corresponding completion cutting
The position of piston topmost sealing group opposing body during different sleeve pipes.
As shown in figure 1, the inner surface of body 1 is provided with 2 groups of sealing groups (41,42)；Sealing group (41,42) bottom is set
There is the piston 5 with spring 51, the piston 5 is connected with cutter 7 by bearing pin 6；The cutter 7 is by being arranged on the body 1
Bottom slot 9 is protruding, as shown in figure 3, to stud with hard alloy inserted by 71 for the appearance of the cutter 7, it is inserted to be shaped as round platform.
As shown in figure 1, be additionally provided with protection mechanism 52 on the piston 5, the protection mechanism 52 by alloy shower nozzle 521,
Sealing ring 522 and back-up ring 523 are formed；The alloy shower nozzle 521 is arranged on 5 in piston, and spacing by back-up ring 523, the conjunction
Sealing ring 522, annular space between seal in alloy shower nozzle 521 and piston 5 are installed between golden shower nozzle 521 and piston 5.
Top connection 2 is threadedly coupled with body 1 in the present embodiment, and cutter 7 is connected by bearing pin 6 with body 1；Piston 5 is installed
In body, two groups of sealing groups (41,42) are installed in the upper slot of piston 5, cutter 7 can be promoted when piston 5 moves down around pin
Axle 6 rotates；Spring 51 is installed, spring 51 is initially compressive state, and restoring force is provided for piston 5 between piston 5 and body；Close
Golden shower nozzle 521 is arranged in piston 5, and spacing by back-up ring 523, and sealing ring is provided between alloy shower nozzle 521 and piston 5
522, annular space between seal in alloy shower nozzle 521 and piston 5.
In the present embodiment, liquid enter from top connection it is fashionable, promote piston 5 move down, make cutter 7 around bearing pin 6 rotate
Open, while rotate tubing string, Casing-Cutting operation can be achieved.
In the present embodiment, it is inserted by 71 that the surface of cutter 7 studs with cylindrical hard alloy, can increase substantially cutter wearability
Energy.
In the present embodiment, body 1 is designed with three straight holes axially arranged (31,32,33), between straight hole (31,32,33)
Mutual distance be more than the distance between two groups of sealing groups (41,42), straight hole (31,32,33), the position on body 1 on piston 5
Put, correspond to complete 9-5/8 ", 13-3/8 ", 20 " piston 5 topmost sealing group (41,42) opposing bodies during casing-pipe cutting respectively
Position.Straight hole (31,32,33) indoor design has NPT screw threads, and alternative installed plug 4 is blocked.
In the present embodiment, before Casing-Cutting operation on hydraulic cutter three straight holes all blocked using plug 4, it is necessary to
When cutting certain layer of sleeve pipe, by plug (311,321,331) is accordingly removed at straight hole corresponding to this layer of sleeve pipe.When the layer is cut in completion
During sleeve pipe, tubing string pressure is decreased obviously, you can judgement has fulfiled assignment, and can carry out trip-out operation.
When calculating operation under different displacements (400~1000L/min of discharge capacity) by simulating, draw and worked before contrasting cutting
Work pump pressure data when pump pressure and completion outermost layer casing-pipe cutting, it is possible to find promote cutter arrival destination locations when piston is run
When, pressure has obvious pressure drop, can be good at judging casing-pipe cutting situation, refering to Fig. 4.
Above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under enlightenment of the present utility model, in the case where not departing from the utility model aims and claimed scope, may be used also
To make many variations, these belong to the row of protection of the present utility model.
Claims (6)
1. a kind of waterpower for being used to cut multilayer sleeve cuts tool, formed by cutting tool body, it is characterised in that the body includes boring
Bar button, the drilling rod portion of buckling are threadedly coupled top connection, and the body axially arranges straight provided with 3 with movable drain plug
Hole, the body internal surface are provided with sealing group；The sealing group bottom is provided with the piston with spring, and the piston is connected by bearing pin
It is connected to cutter；The cutter by be arranged on the body bottom portion slot it is protruding, the body be additionally provided with connection piston to
The inclined hole of outer draining.
2. a kind of waterpower for being used to cut multilayer sleeve according to claim 1 cuts tool, it is characterised in that on the piston
Protection mechanism is additionally provided with, the protection mechanism is made up of alloy shower nozzle, sealing ring and back-up ring；The alloy shower nozzle is arranged on work
In plug, and by retainer ring spacing, sealing ring is installed between the alloy shower nozzle and piston, between seal in alloy shower nozzle and piston
Annular space.
3. a kind of waterpower for being used to cut multilayer sleeve according to claim 1 cuts tool, it is characterised in that in the straight hole
There is High angle chamfering on surface.
4. a kind of waterpower for being used to cut multilayer sleeve according to claim 1 cuts tool, it is characterised in that the sealing group
For two groups.
5. a kind of waterpower for being used to cut multilayer sleeve according to claim 1 cuts tool, it is characterised in that outside the cutter
It is inserted that table studs with hard alloy, inserted to be shaped as round platform.
6. it is according to claim 4 it is a kind of be used to cutting the waterpower of multilayer sleeve cut tool, it is characterised in that the straight hole it
Between mutual distance be more than the distance between described sealing group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720584322.4U CN206860153U (en) | 2017-05-24 | 2017-05-24 | A kind of waterpower for being used to cut multilayer sleeve cuts tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720584322.4U CN206860153U (en) | 2017-05-24 | 2017-05-24 | A kind of waterpower for being used to cut multilayer sleeve cuts tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860153U true CN206860153U (en) | 2018-01-09 |
Family
ID=60824356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720584322.4U Active CN206860153U (en) | 2017-05-24 | 2017-05-24 | A kind of waterpower for being used to cut multilayer sleeve cuts tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860153U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441386A (en) * | 2018-12-19 | 2019-03-08 | 贵州高峰石油机械股份有限公司 | A kind of device being completed at the same time seabed Casing-Cutting and capping operation |
| CN110359871A (en) * | 2019-08-30 | 2019-10-22 | 金石钻探(唐山)股份有限公司 | A kind of drill bushing pipe well internal cutting off device and its application method |
| CN114607304A (en) * | 2022-02-25 | 2022-06-10 | 中海油能源发展股份有限公司 | Method for calculating axial distance of cutting notch and blade abrasion length of multilayer eccentric sleeve |
-
2017
- 2017-05-24 CN CN201720584322.4U patent/CN206860153U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441386A (en) * | 2018-12-19 | 2019-03-08 | 贵州高峰石油机械股份有限公司 | A kind of device being completed at the same time seabed Casing-Cutting and capping operation |
| CN110359871A (en) * | 2019-08-30 | 2019-10-22 | 金石钻探(唐山)股份有限公司 | A kind of drill bushing pipe well internal cutting off device and its application method |
| CN110359871B (en) * | 2019-08-30 | 2024-03-12 | 金石钻探(唐山)股份有限公司 | Cutting device in drill sleeve well and use method thereof |
| CN114607304A (en) * | 2022-02-25 | 2022-06-10 | 中海油能源发展股份有限公司 | Method for calculating axial distance of cutting notch and blade abrasion length of multilayer eccentric sleeve |
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