CN206111118U - Capsule type water conservancy anchor - Google Patents
Capsule type water conservancy anchor Download PDFInfo
- Publication number
- CN206111118U CN206111118U CN201621131531.5U CN201621131531U CN206111118U CN 206111118 U CN206111118 U CN 206111118U CN 201621131531 U CN201621131531 U CN 201621131531U CN 206111118 U CN206111118 U CN 206111118U
- Authority
- CN
- China
- Prior art keywords
- packing element
- slips
- capsule
- expanding
- slip sleeve
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a capsule type water conservancy anchor, including expanding packing element, slips, the outside cover of expanding packing element has slip sleeve, the slips is installed inside slip sleeve to slips inner wall and the contact of expanding packing element outer wall, last the offering of slip sleeve is used for making the radially flexible window of slips, set up the little spring between slips and the slip sleeve inner wall, oil pipe's pressure all can be accepted to come from by expanding packing element inner wall, makes the expanding packing element be equivalent to capsule structure. The utility model discloses the quite conventional water conservancy ground tackle of instrument has the anchoring area double, and the anchoring is fast, and is powerful, and the anchoring effect is better among the fracturing, instrument structural design can effectively avoid the risk that fracturing middlings card slips brought.
Description
Technical field
This utility model is related to hydraulic anchor, specifically a kind of capsule-type hydraulic anchor.
Background technology
Conventional hydraulic anchor or the slips structure with anchor packer are the downhole tools for being commonly used in anchoring string, point
Do not have the advantages that to avoid sand card and grappling area big, but while and respectively have grappling area little and easy sand card deficiency.Knot
Both pluses and minuses are closed, Integration Design goes out grappling area greatly and can avoid the capsule hydraulic anchor of sand card, is mainly used in drag fracturing
Process pipe string.
Through retrieval, publication number 101619648, publication date 2010-01-06 discloses a kind of expanding hydraulic anchor, by upper
Joint, anchor fluke, garter spring, packing element, inner tube, lower contact composition, anchor fluke is in strip shape and is embedded in the longitudinal fluting of packing element, outside anchor fluke
There are horizontal teeth side, and there is radial groove anchor fluke inner side, there is garter spring in radial groove, and garter spring encases packing element, anchor fluke, garter spring, packing element
It is sulfided into and be integrally sleeved on outside inner tube, inner tube top is connected with top connection, inner tube bottom is connected with lower contact, top connection lower buckle
Firmly anchor fluke top, lower contact top clasps anchor fluke bottom.Pressure is incoming to expand packing element, anchor fluke is released and is anchored on oil well casing
On, when grappling is not needed, oil well pressure balance, packing element withdraws under garter spring and its own resilient effect, and anchor fluke is expanded with packing element,
Coordinate without intermetallic gap, therefore, anchor fluke works freely, energy grappling, can withdraw, reliable operation, not card tubing string, can keep away
Exempt from oil well and engineering accident occurs.Technology disclosed above is inner tube due to packing element inside, and inner tube only opens up an aperture, basic
Packing element cannot form capsule structure in meaning, it is impossible to bring the sufficiently large extruding force that capsule structure is provided, anchorage force is not
Can guarantee that, and by an aperture pressure transmission, grappling speed is too slow.
The content of the invention
The purpose of this utility model is to provide a kind of capsule-type hydraulic anchor, and instrument has grappling face compared with than conventional hydraulic anchor
Product is double, and grappling speed is fast, and strength is big, and anchoring effect is more preferable in pressing crack construction；Tool construction design can be prevented effectively from pressure break and apply
The risk that sand card slips brings in work.
In order to reach above-mentioned purpose, this utility model employs following technical scheme, a kind of capsule-type hydraulic anchor, including expansion
Formula packing element, slips are opened, slip sleeve is set with outside the expanding packing element, the slips is arranged on inside slip sleeve, and is blocked
Watt inwall and expanding packing element wall contacts, offer the window for making slips radial expansion on slip sleeve, the slips with
Little spring is set between slip sleeve inwall, and the expanding packing element inwall can all receive the pressure from oil pipe, make expanding
Packing element is equivalent to capsule structure.
The expanding packing element upper end connects top connection by upper assembly, and lower end connects lower contact by lower assembly.
The upper assembly includes bushing on gland, packing element on packing element, and bushing upper end is connected on packing element on the packing element
Gland inwall, forms clamping annular space, the expanding packing element upper end interference fit between bushing on gland, packing element on the packing element
It is installed in clamping annular space, connection top connection in gland upper end on packing element.
The expanding packing element upper end carries out vulcanizing treatment.
The lower assembly includes bushing under gland, packing element under packing element, and bushing lower end is connected under packing element under the packing element
Gland inwall, forms clamping annular space, the expanding packing element lower end interference fit between bushing under gland, packing element under the packing element
It is installed in clamping annular space, connection lower contact in gland lower end under packing element.
The expanding packing element lower end carries out vulcanizing treatment.
The slips set upper side connects top connection by upper joint sleeve, and the slip sleeve lower end is by under lower joint sleeve connection
Joint.
Compared to prior art, this utility model has the advantages that：
Be connected with oil pipe by top connection, top connection is connected by female thread with gland on packing element, by external screw thread with it is upper
Adapter sleeve connects, and gland is connected to form assembly one by screw thread with bushing on packing element on packing element, and gland passes through screw thread under packing element
It is connected to form assembly two with bushing under packing element, expanding packing element is by vulcanizing treatment with interference fit is by assembly one and assembles
Body two is fixed thereon lower two ends and forms assembly three, and assembly three is coordinated and sealing ring with top connection and lower contact by gap
Sealing is formed, upper joint sleeve is threaded connection with slip sleeve, and lower joint sleeve is connected by external screw thread with slip sleeve, by interior spiral shell
Stricture of vagina is connected with lower contact, and slips is arranged in the window that slip sleeve is reserved, and is resetted by little spring, and lower contact connects with oil pipe
Connect.By the positive pressure reduction between oil pipe and sleeve pipe so that capsule hydraulic anchor interior expansion formula packing element is expanded, slips pressure is promoted then
Reduce spring to be flared out, grappling is formed by the slip insert wedging sleeve pipe on slips.The slips of capsule hydraulic anchor is compared with than routine
The area of hydraulic anchor anchor fluke is double, and grappling speed is fast, and strength is big, and the anchoring effect in pressing crack construction is more preferable, and slips is released and leaned on
Packing element is expanded, without using upper conical structures, it is to avoid sand card cone causes the slips cannot to open or receive in pressing crack construction
The problem returned occurs.
Description of the drawings
Fig. 1 is a kind of structural representation of capsule-type hydraulic anchor of this utility model.
In figure：1-- top connections；Gland on 2-- packing elements；3-- upper joint sleeves；4-- sealing rings；Bushing on 5-- packing elements；6--
Expanding packing element；7-- slip sleeves；8-- slips；9-- little springs；Gland under 10-- packing elements；Bushing under 11-- packing elements；Connect under 12--
Female connector；13-- sealing rings；14-- lower contacts.
Specific embodiment
Relevant detailed description of the present utility model and technology contents, coordinate description of the drawings as follows, but accompanying drawing only provides ginseng
Examine and purposes of discussion, not for being any limitation as to this utility model.
According to Fig. 1, a kind of capsule-type hydraulic anchor is connected by top connection 1 with oil pipe, and top connection 1 is by female thread and glue
Gland 2 connects on cylinder, is connected with upper joint sleeve 3 by external screw thread, and gland 2 is connected by screw thread with bushing on packing element 5 on packing element
Assembly one is formed, gland 10 is connected to form assembly two by screw thread with bushing under packing element 11 under packing element, expanding packing element 6 leads to
Assembly one and assembly two are fixed thereon lower two ends and form assembly three, assembly three by over cure process with interference fit
Coordinated by gap with top connection 1 and lower contact 14 and sealing ring 4,13 forms sealing, upper joint sleeve 3 passes through spiral shell with slip sleeve 7
Stricture of vagina connects, and lower joint sleeve 12 is connected with slip sleeve 7 by external screw thread, is connected with lower contact 14 by female thread, and slips 8 is arranged on
In the reserved window of slip sleeve 7, and resetted by little spring 9, lower contact 14 is connected with oil pipe.
By the positive pressure reduction between oil pipe and sleeve pipe so that capsule hydraulic anchor interior expansion formula packing element 6 is expanded, and promotes then
The compression little spring 9 of slips 8 is flared out, and by the slip insert wedging sleeve pipe on slips 8 grappling is formed.
Compared with more double than the area of conventional hydraulic anchor anchor fluke, the anchoring effect in pressing crack construction is more for the slips 8 of capsule hydraulic anchor
It is good, and slips 8 released by packing element expansion, without using upper conical structures, it is to avoid sand card cone causes card in pressing crack construction
The problem that watt cannot be opened or withdraw occurs.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the scope of the claims of the present utility model, its
He all should all belong to the scope of the claims of the present utility model with the equivalence changes of patent spirit of the present utility model.
Claims (7)
1. a kind of capsule-type hydraulic anchor, including expanding packing element, slips, it is characterised in that be cased with outside the expanding packing element
Slip sleeve, the slips is arranged on inside slip sleeve, and slips inwall and expanding packing element wall contacts, is opened up on slip sleeve
There is the window for making slips radial expansion, little spring, the expanding packing element are set between the slips and slip sleeve inwall
Inwall can all receive the pressure from oil pipe, make expanding packing element equivalent to capsule structure.
2. a kind of capsule-type hydraulic anchor according to claim 1, it is characterised in that the expanding packing element upper end is by upper
Assembly connects top connection, and lower end connects lower contact by lower assembly.
3. a kind of capsule-type hydraulic anchor according to claim 2, it is characterised in that the upper assembly includes being pressed on packing element
Bushing on set, packing element, bushing upper end is connected to gland inwall on packing element on the packing element, serves as a contrast on gland, packing element on the packing element
Clamping annular space is formed between set, the expanding packing element upper end interference fit is installed in clamping annular space, gland upper end on packing element
Connection top connection.
4. a kind of capsule-type hydraulic anchor according to claim 3, it is characterised in that the expanding packing element upper end carries out sulfur
Change is processed.
5. a kind of capsule-type hydraulic anchor according to claim 2, it is characterised in that the lower assembly is pushed including packing element
Bushing under set, packing element, bushing lower end is connected to gland inwall under packing element under the packing element, serves as a contrast under gland, packing element under the packing element
Clamping annular space is formed between set, the expanding packing element lower end interference fit is installed in clamping annular space, gland lower end under packing element
Connection lower contact.
6. a kind of capsule-type hydraulic anchor according to claim 5, it is characterised in that the expanding packing element lower end carries out sulfur
Change is processed.
7. a kind of capsule-type hydraulic anchor according to claim 1, it is characterised in that the slips set upper side is by upper connection
Set connection top connection, the slip sleeve lower end connects lower contact by lower joint sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621131531.5U CN206111118U (en) | 2016-10-17 | 2016-10-17 | Capsule type water conservancy anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621131531.5U CN206111118U (en) | 2016-10-17 | 2016-10-17 | Capsule type water conservancy anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111118U true CN206111118U (en) | 2017-04-19 |
Family
ID=58525942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621131531.5U Expired - Fee Related CN206111118U (en) | 2016-10-17 | 2016-10-17 | Capsule type water conservancy anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206111118U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218006A (en) * | 2017-07-19 | 2017-09-29 | 铁岭曲氏石油技术开发服务有限公司 | Hydraulic anchor |
| CN108487879A (en) * | 2017-12-20 | 2018-09-04 | 高云东 | A kind of oil layer protection flushing packer |
-
2016
- 2016-10-17 CN CN201621131531.5U patent/CN206111118U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218006A (en) * | 2017-07-19 | 2017-09-29 | 铁岭曲氏石油技术开发服务有限公司 | Hydraulic anchor |
| CN108487879A (en) * | 2017-12-20 | 2018-09-04 | 高云东 | A kind of oil layer protection flushing packer |
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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 |
Granted publication date: 20170419 Termination date: 20191017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |