CN206376806U - A kind of solvable casing blanking plug of presetting system - Google Patents
A kind of solvable casing blanking plug of presetting system Download PDFInfo
- Publication number
- CN206376806U CN206376806U CN201621378731.0U CN201621378731U CN206376806U CN 206376806 U CN206376806 U CN 206376806U CN 201621378731 U CN201621378731 U CN 201621378731U CN 206376806 U CN206376806 U CN 206376806U
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- closing piece
- connecting rod
- solvable
- ring
- plug
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Abstract
The utility model is related to a kind of solvable casing blanking plug of presetting system, include releasing gadget and setting mechanism, releasing gadget includes fishing joint, connecting rod and the slide block mechanism on top, instrument connects weighted lever, the preset seating nipple of bumper jar tripping in by steel wire operation, and plug sealing mechanism enters the formation of preset seating nipple and blocked.By the downward jarring of bumper jar, seat bayonet lock nail is cut in fishing joint, and whole releasing gadget is moved down, and drives closing piece axle to start setting mechanism by connecting rod, closing piece strut be locked in it is preset be located joint, completion instrument is set.Steel wire, the upward jarring of bumper jar are above carried, seat pin nail is tested in cutting, and connecting rod and top releasing gadget depart from setting mechanism, complete to give up.Tripping operation is completed, and after after the dissolving of solvable plug, production passage is opened, into normal production procedure.The instrument can exempt the tripping operation with pressure after light casing fracturing, reduce construction risk, save operating cost and construction period.
Description
Technical field
The utility model belongs to well fracturing renovation technique field, and in particular to a kind of solvable cannula occlusion of presetting system
Device, is mainly used in after Oil/gas Well casing cementing pressure break, exempts from band pressure and bores.
Background technology
At present, the domestic limited level carried out, infinite stages sliding sleeve of bushing multilayer multistage pressing crack construction, complete pressing crack construction
Afterwards, it is necessary to carry out Operating Pressure tripping in 2＂ oil pipes are produced.The current operation has the disadvantages that.
1st, construction risk is big；
2nd, operating cost is high；
3rd, duty cycle is long.
So as to need a kind of casing blanking plug of design badly, exempt later stage band pressure and bore risk, save construction cost, shorten construction
In the cycle, be that the further sizable application of sliding sleeve of bushing fracturing technique lays the foundation.
Utility model content
The purpose of this utility model is solved after existing sliding sleeve of bushing well cementation pressing crack construction, it is necessary to which Operating Pressure tripping in is given birth to
Oil-producing pipe, the problems such as there is construction risk height, operating cost height, long construction period, big difficulty of construction.
Therefore, the utility model provides a kind of solvable casing blanking plug of presetting system, including releasing gadget and setting mechanism,
Described releasing gadget includes fishing joint and slides part, slides part and is threadedly attached in fishing joint lower end, fishing joint
Connecting rod is set with sliding, fishing joint is fixed by sitting bayonet lock nail with connecting rod top inside part；
Described setting mechanism includes closing piece axle, lock nut and closing piece body, and described closing piece axle is connected to by a sliding block
Part bottom is slided, the middle part of described connecting rod is located in closing piece axle, seat pin nail connection is tested by one outside the bottom of connecting rod
A closing piece body, the top of closing piece body is located at outside closing piece axle, and described lock nut is threadedly attached in closing piece body tip position,
The bottom of closing piece body is connected to a plug；
Described closing piece body is to be circumferentially provided with multiple passages along closing piece body radial direction, passage in the middle part of cannula-like, its tube wall
Closing piece is built-in with, closing piece the inner is abutted with closing piece axle, and described closing piece axle becomes big reducing district provided with diameter, and the reducing district is located at
Above closing piece.
Be additionally provided with retaining ring seat on described fishing joint inwall, snap ring be installed in retaining ring seat, described connecting rod it is outer
The retaining ring seat being provided with wall in neck, fishing joint is located at the top of the neck of connecting rod.
Described slides part for tubulose, and its underpart tube wall is circumferentially arranged multiple through holes, and through hole is built with sliding block, sliding block
Outer end be embedded in closing piece axle inwall, part will be slided and be connected with closing piece axle.
Described connecting rod top is the reducing district being relatively large in diameter, and slides the periphery that part is located at connecting rod top reducing district.
Set on described closing piece axle outer wall and be provided with locating ring in locating slot, closing piece body on wall, described locating ring position
Above the locating slot, and distance between the two is equal to the bottom of closing piece to the distance of closing piece axle reducing district.
Sealing device is provided with described plug outer wall, sealing device includes sealing seat ring, V-shaped seal ring and middle branch
Ring, seal receptacle ring set is set between multiple V-shaped seal rings, adjacent V-shaped seal ring on sealing seat ring and set on plug outer wall
Middle supporting ring.
Described plug is made up of soluble material.
Described fishing joint bottom is also fixed with part top is slided by the way that a fixing pin is interspersed；Described closing piece body
Baffle ring is additionally provided between top and closing piece axle.
The beneficial effects of the utility model：The utility model provide the solvable casing blanking plug of this presetting system, can in order to avoid
Except the tripping operation with pressure after light casing fracturing, construction risk is reduced, operating cost and construction period has been saved.
Brief description of the drawings
The utility model is described in further details below with reference to accompanying drawing.
The structural representation of the solvable blanking plug of Fig. 1 presetting systems.
Fig. 2 is the operating diagram of the solvable blanking plug of presetting system.
Description of reference numerals：1st, fishing joint；2nd, seat bayonet lock is followed closely；3rd, snap ring；4th, fixing pin；5th, sliding block；6th, baffle ring；7、
Locating ring；8th, closing piece；9th, seat pin nail is tested；10th, connecting rod；11st, part is slided；12nd, closing piece axle；13rd, lock emits；14th, closing piece body；15、
Seal seat ring；16th, V-shaped seal ring；17th, middle supporting ring；18th, plug；19th, preset seating nipple.
Embodiment
Embodiment 1：
The present embodiment provides a kind of solvable casing blanking plug of presetting system, as shown in figure 1, including releasing gadget and setting machine
Structure, described releasing gadget includes fishing joint 1 and slides part 11, slides part 11 and is threadedly attached in the lower end of fishing joint 1,
Fishing joint 1 sets connecting rod 10 with the inside of part 11 is slided, and fishing joint 1 is fixed by sitting bayonet lock nail 2 with the top of connecting rod 10；
Setting mechanism includes closing piece axle 12, lock nut 13 and closing piece body 14, and described closing piece axle 12 is connected by a sliding block 5
The bottom of part 11 is being slided, the middle part of described connecting rod 10 is located in closing piece axle 12, tested outside the bottom of connecting rod 10 by one
Seat pin nail 9 is connected to a closing piece body 14, and the top of closing piece body 14 is located at outside closing piece axle 12, and described lock nut 13 is connected by screw thread
The tip position of closing piece body 14 is connected on, the bottom of closing piece body 14 is connected to a plug 18；
Closing piece body 14 is to be circumferentially provided with the middle part of cannula-like, its tube wall in multiple passages along the radial direction of closing piece body 14, passage
Closing piece 8 is equipped with, the inner of closing piece 8 is abutted with closing piece axle 12, and described closing piece axle 12 becomes big reducing district, the reducing district provided with diameter
Positioned at the top of closing piece 8.
This structure of the present embodiment, coordinates bumper jar and preset seating nipple 19 to use, by the downward jarring of bumper jar,
Seat bayonet lock nail is cut in fishing joint, and whole releasing gadget is moved down, and drives closing piece axle to start setting mechanism, closing piece by connecting rod
Strut be locked in it is preset be located joint, completion instrument is set.Hereafter, steel wire is above carried, seat pin is tested in the upward jarring of bumper jar, cutting
Nail, connecting rod and top releasing gadget depart from setting mechanism, complete to give up.
Embodiment 2：
The present embodiment is further illustrated on the basis of embodiment 1, and snap ring is additionally provided with the inwall of fishing joint 1
Seat, installs snap ring 3 in retaining ring seat, and the retaining ring seat being provided with the outer wall of described connecting rod 10 in neck, fishing joint 1 is located at
The top of the neck of connecting rod 10.
Part 11 is slided for tubulose, its underpart tube wall is circumferentially arranged multiple through holes, through hole built with sliding block 5, sliding block 5
The inwall of outer end insertion closing piece axle 12, will slide part 11 and is connected with closing piece axle 12.
The top of connecting rod 10 is the reducing district being relatively large in diameter, and slides the periphery that part 11 is located at the top reducing district of connecting rod 10.
Set on the outer wall of closing piece axle 12 and locating ring 7, described locating ring 7 are provided with locating slot, the inwall of closing piece body 14
Above the locating slot, and distance between the two is equal to the bottom of closing piece 8 to the distance of the reducing district of closing piece axle 12.
After the solvable blanking plug of presetting system enters preset seating nipple 19, positioning step and preset seating nipple on closing piece body 14
19 coordinate, and the sealing mechanism of plug 18 is engaged to form sealing with the preset sealing surface of seating nipple 19.Now, bumper jar shakes downwards
Hit, seat bayonet lock nail 2 is cut in fishing joint 1, is moved down, at the same promote be attached thereto slide part 11 and closing piece axle 12 simultaneously to
Lower movement, is in contact until being moved to and emitting 13 with lock, and now, snap ring 3 enters in connecting rod neck, and fishing joint 1 passes through snap ring 3
Locked with connecting rod 10.During this, sliding block 5 is come downwards to after the step of connecting rod 10, and unblock, closing piece axle 12 takes off with connecting rod
From, meanwhile, closing piece axle is moved down, and locating ring 7 enters locating slot, and closing piece 8 starts, and closing piece body is locked in into preset seating nipple
19, completion instrument is set.
Instrument completes to set, now, and closing piece axle 12 completes to depart from it with upper-part.The upward jarring of bumper jar, connecting rod
10 cut and test seat pin nail 9, above carry steel wire, fishing joint 1, slide part 11, connecting rod 10 and depart from body, complete to give up.
Embodiment 3：
Sealing device is provided with the outer wall of plug 18, sealing device includes sealing seat ring 15, V-shaped seal ring 16 and middle supporting ring
17, sealing seat ring 15 is enclosed on the outer wall of plug 18, and multiple V-shaped seal rings 16, adjacent V-shaped seal ring are set with sealing seat ring 15
Supporting ring 17 in being set between 16, plug 18 is made up of soluble material.
Plug 18 is made up of soluble material, and the soluble material of different materials according to practice of construction needs, can be selected to complete, adjusted
Whole rate of dissolution, meets construction period needs.Plug 18 has V-type circle sealing mechanism, coordinates with preset seating nipple sealing surface, complete
Into instrument sealing.
In order to strengthen integrally-built stabilization and sealing, the present embodiment collects, and the bottom of fishing joint 1 and slides the top of part 11
Also fixed by the way that a fixing pin 4 is interspersed；Baffle ring 6 is additionally provided between the described top of closing piece body 14 and closing piece axle 12.
Embodiment 4：
The present embodiment provides a kind of application method of the solvable casing blanking plug of presetting system, as shown in Fig. 2 described presetting system
Solvable casing blanking plug is used cooperatively with bumper jar and preset seating nipple 19, is set on the barrel of described preset seating nipple 19
There is the through hole corresponding with the radial passage of closing piece body 14, comprise the following steps that：
1）Preset seating nipple 19 of the solvable casing blanking plug of tripping in presetting system into well so that the radial direction on closing piece body 14 is led to
The through hole in road and preset seating nipple 19 maintains an equal level, and the sealing device on plug 18 cooperatively forms sealing with the preset bottom of seating nipple 19；
2）The downward jarring of bumper jar, fishing joint 1 is cut seat bayonet lock nail 2 and moved down, while promoting the cunning being attached thereto
Row part 11 is moved down simultaneously with closing piece axle 12；
3）In above-mentioned moving process, snap ring 3 enters in the neck of connecting rod 10, and fishing joint 1 passes through snap ring 3 and connecting rod 10
Locking；After sliding block 5 is come downwards under the reducing district step of connecting rod 10, unblock, closing piece axle 12 departs from, and closing piece axle 12 continues to moving down
Dynamic, locating ring 7 enters locating slot, and the reducing district of closing piece axle 12 promotes closing piece 8 to radially expand, and the He of closing piece body 14 is locked using closing piece 8
Preset seating nipple 19, completion instrument is set；
4）The upward jarring of bumper jar, connecting rod 10, which is cut, tests seat pin nail 9, above carries steel wire, fishing joint 1, slides part 11, even
Extension bar 10 departs from remainder, completes to give up；
5）Plug 18 is needed by construction period, is timed after pressure-bearing, is dissolved, and production passage is opened, into normal production
Flow.
In summary, the utility model provides a kind of solvable casing blanking plug of presetting system, can exempt light casing fracturing
Tripping operation with pressure afterwards, reduces construction risk, has saved operating cost and construction period.
Exemplified as above is only for example, not constituting to protection domain of the present utility model to of the present utility model
Limitation, it is every to be belonged to the same or analogous design of the utility model within protection domain of the present utility model.
Claims (8)
1. a kind of solvable casing blanking plug of presetting system, including releasing gadget and setting mechanism, it is characterised in that：Described loss mobile phone
Structure includes fishing joint（1）With slide part（11）, slide part（11）It is threadedly attached in fishing joint（1）Lower end, salvaging connects
Head（1）With slide part（11）Inside sets connecting rod（10）, fishing joint（1）Followed closely by sitting bayonet lock（2）With connecting rod（10）On
Portion is fixed；
Described setting mechanism includes closing piece axle（12）, lock nut（13）With closing piece body（14）, described closing piece axle（12）Pass through one
Individual sliding block（5）It is connected to and slides part（11）Bottom, described connecting rod（10）Middle part be located at closing piece axle（12）It is interior, connecting rod
（10）Bottom outside by one test seat pin follow closely（9）It is connected to a closing piece body（14）, closing piece body（14）Top be located at closing piece
Axle（12）Outside, described lock nut（13）It is threadedly attached in closing piece body（14）Tip position, closing piece body（14）Bottom connection
A plug（18）；
Described closing piece body（14）For cannula-like, its tube wall middle part is circumferentially provided with multiple along closing piece body（14）The passage of radial direction,
Passage is built-in with closing piece（8）, closing piece（8）Inner and closing piece axle（12）Abut, described closing piece axle（12）Become big provided with diameter
Reducing district, the reducing district is located at closing piece（8）Top.
2. the solvable casing blanking plug of presetting system as claimed in claim 1, it is characterised in that：Described fishing joint（1）Inwall
On be additionally provided with retaining ring seat, snap ring is installed in retaining ring seat（3）, described connecting rod（10）Outer wall on be provided with neck, salvage
Joint（1）On retaining ring seat be located at connecting rod（10）Neck top.
3. the solvable casing blanking plug of presetting system as claimed in claim 1, it is characterised in that：Described slides part（11）For pipe
Shape, its underpart tube wall is circumferentially arranged multiple through holes, and through hole is built with sliding block（5）, sliding block（5）Outer end insertion closing piece axle
（12）Inwall, part will be slided（11）With closing piece axle（12）Connection.
4. the solvable casing blanking plug of presetting system as claimed in claim 3, it is characterised in that：Described connecting rod（10）Top is
The reducing district being relatively large in diameter, slides part（11）Positioned at connecting rod（10）The periphery of top reducing district.
5. the solvable casing blanking plug of presetting system as claimed in claim 1, it is characterised in that：Described closing piece axle（12）On outer wall
Locating slot, closing piece body are set（14）Locating ring is provided with inwall（7）, described locating ring（7）Above locating slot, and two
Distance between person is equal to closing piece（8）Bottom to closing piece axle（12）The distance of reducing district.
6. the solvable casing blanking plug of presetting system as claimed in claim 1, it is characterised in that：Described plug（18）Set on outer wall
Sealing device is equipped with, sealing device includes sealing seat ring（15）, V-shaped seal ring（16）With middle supporting ring（17）, seal seat ring（15）
It is enclosed on plug（18）On outer wall, seat ring is sealed（15）On be set with multiple V-shaped seal rings（16）, adjacent V-shaped seal ring（16）It
Between set in supporting ring（17）.
7. the solvable casing blanking plug of presetting system as claimed in claim 6, it is characterised in that：Described plug（18）By solvable material
Material is made.
8. the solvable casing blanking plug of presetting system as claimed in claim 1, it is characterised in that：Described fishing joint（1）Bottom
With slide part（11）Top also passes through a fixing pin（4）It is interspersed to fix；Described closing piece body（14）Top and closing piece axle
（12）Between be additionally provided with baffle ring（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621378731.0U CN206376806U (en) | 2016-12-15 | 2016-12-15 | A kind of solvable casing blanking plug of presetting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621378731.0U CN206376806U (en) | 2016-12-15 | 2016-12-15 | A kind of solvable casing blanking plug of presetting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206376806U true CN206376806U (en) | 2017-08-04 |
Family
ID=59405822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621378731.0U Active CN206376806U (en) | 2016-12-15 | 2016-12-15 | A kind of solvable casing blanking plug of presetting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206376806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593343A (en) * | 2016-12-15 | 2017-04-26 | 中国石油天然气股份有限公司 | Preset soluble casing plugging device and application method thereof |
-
2016
- 2016-12-15 CN CN201621378731.0U patent/CN206376806U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593343A (en) * | 2016-12-15 | 2017-04-26 | 中国石油天然气股份有限公司 | Preset soluble casing plugging device and application method thereof |
| CN106593343B (en) * | 2016-12-15 | 2023-02-24 | 中国石油天然气股份有限公司 | Preset soluble sleeve blanking plug and using method thereof |
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| GR01 | Patent grant |