CN203230365U - Anchoring device in oil pipe - Google Patents
Anchoring device in oil pipe Download PDFInfo
- Publication number
- CN203230365U CN203230365U CN 201320100788 CN201320100788U CN203230365U CN 203230365 U CN203230365 U CN 203230365U CN 201320100788 CN201320100788 CN 201320100788 CN 201320100788 U CN201320100788 U CN 201320100788U CN 203230365 U CN203230365 U CN 203230365U
- Authority
- CN
- China
- Prior art keywords
- central tube
- inner central
- rubber cylinder
- sleeved
- suit
- 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 - Lifetime
Links
- 238000004873 anchoring Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 20
- 238000012856 packing Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
The utility model discloses an anchor device in oil pipe is for realizing smoothly that throttle air cock and other instruments set up and the deblocking in oil pipe in the pit and design. The anchoring device is connected with an inner central tube and an outer central tube of the throwing device, and a slip sleeve, a slip and an open-petal elastic cone are sleeved on the outer central tube; the inner central tube is sleeved with an upper rubber cylinder steel body and an inner bushing, the inner bushing is sleeved with the upper rubber cylinder, a lower rubber cylinder steel body, an outer bushing and a lower rubber cylinder, a spring is sleeved below a convex shoulder on the outer wall of the inner central tube, and the lower end of the inner central tube is connected with a lower cone. The anchoring device is convenient to install and salvage, few in using tools, and capable of smoothly achieving setting by using smaller lifting force under the condition of suspending instrument equipment, and guaranteeing suspension reliability and working stability. Smooth deblocking and salvaging the whole setting device under the non-jarring operation can be realized, the salvaging procedure and difficulty are reduced, the performance is reliable, the service life is long, and the requirement of long-term stable production of the gas well can be met.
Description
Technical field
The utility model relates to anchoring device in a kind of oil pipe, belongs to gas well production technique field.
Background technology
In the process of gas well exploitation, one of conventional means of gas well production is to be lowered to anchoring device in the oil pipe that is connected with downhole choke valve or Other Instruments in oil pipe, sets or separates the interior anchoring device of sealed tube and mainly put operation by steel wire.When setting, require to have to lift power on bigger, and when salvaging, overcome spring force and frictional force could deblocking, this just form set with twice operation of deblocking in mechanical relationship contradiction.Setting the own performance of effect and instrument and construction experience all has much relations, is unfavorable for anchoring device deblocking in the oil pipe like this, and fouling or serious corrosion also can cause the deblocking difficulty, occurs locked and can't salvage, and brings more difficulty to site operation.
Summary of the invention
The purpose of this utility model is to provide anchoring device in a kind of oil pipe, and it can solve the problem that the interior anchoring device of existing oil pipe is difficult for deblocking, improves reliability and the success rate of deblocking.
Concrete technical scheme of the present utility model is as follows:
The input head of this anchoring device connects inner central tube by shear pin; Exterior central tube connects fishing head and also is sleeved on inner central tube top, and the exterior central tube outer wall is suit slip sleeve, slips and open the lobe flexible cone by what salvage that shear pin is connected successively from up to down; Last packing element steel body is by the V-shaped seal ring sealing and be sleeved on the inner central tube middle part, and its top undergauge tube is connected in the flexible cone bottom outlet, and its undergauge tube inwall connects the neck bush of suit inner central tube, and its bottom surface connects the last packing element of suit neck bush; Lower rubber cylinder steel body is by the sealing ring sealing and be sleeved on the neck bush bottom, and its endoporus connects the external bushing of suit neck bush, and its bottom surface connects the lower rubber cylinder of suit external bushing, and external bushing is by the neck bush bottom supporting; Inner central tube bottom outer wall is provided with convex shoulder, and convex shoulder below suit is by the spring of neck bush bottom supporting; The inner central tube lower end connects the lower cone by the sealing of cone sealing ring, and the lower cone end face supports lower rubber cylinder.
It is convenient that this anchoring device is installed and salvaged, and tool using is few, can utilize less upper lifting force to realize smoothly setting under the situation that hangs plant and instrument, guarantees to hang reliable and working stability.Can realize not having the smooth deblocking under the jarring operation and salvaging whole seating and sealing unit, reduce salvaging program and difficulty, dependable performance, long working life can satisfy the gas well needs of producing steady in a long-term.
Description of drawings
Fig. 1 is anchoring device structural representation in the oil pipe.
The specific embodiment
With reference to Fig. 1 embodiment of the present utility model is further specified:
Embodiment:
This anchoring device comprises to be thrown in 1, fishing head 2, shear pin 3, exterior central tube 4, inner central tube 5, slip sleeve 6, slips 7, salvages shear pin 8, opens lobe flexible cone 9, V-shaped seal ring 10, goes up packing element steel body 11, neck bush 12, goes up packing element 13, sealing ring 14, lower rubber cylinder steel body 15, lower rubber cylinder 16, external bushing 17, spring 18, lower cone 19 and cone sealing ring 20:
Throw in 1 and connect inner central tubes 5 by shear pin 3.Be threaded fishing head 2 and be sleeved on inner central tube 5 tops of exterior central tube 4, exterior central tube 4 outer walls be suit slip sleeve 6, slips 7 and open lobe flexible cone 9 by what salvage that shear pin 8 is connected successively from up to down.Last packing element steel body 11 is by V-shaped seal ring 10 sealings and be sleeved on inner central tube 5 middle parts, its top undergauge tube is threadedly connected in flexible cone 9 bottom outlets, its undergauge tube internal thread connects the neck bush 12 of suit inner central tube 5, and its bottom surface sulfuration connects the last packing element 13 of suit neck bush 12.Lower rubber cylinder steel body 15 is by sealing ring 14 sealings and be sleeved on neck bush 12 bottoms, and its inner hole thread connects the external bushing 17 of suit neck bush 12, and its bottom surface sulfuration connects the lower rubber cylinder 16 of suit external bushing 17, and external bushing 17 is by neck bush 12 bottom supporting.Inner central tube 5 bottom outer walls are provided with convex shoulder, and convex shoulder below suit is by the spring 18 of neck bush 12 bottom supporting.Inner central tube 5 lower ends are threaded by the lower cone 19 of cone sealing ring 20 sealings, and lower cone 19 end faces support lower rubber cylinder 16.
The process that sets of this anchoring device is as follows:
With steel wire with throw in 1 and be lowered to down-hole oil tube after being connected, arrive the precalculated position after, on carry steel wire, under the gravity effect, slip sleeve 6 presses down slips 7 to flexible cone 9 and outer expanding, slips 7 cards lean against on the tube inner wall, thereby the continuation of prevention seating and sealing unit is up.At this moment, steel wire continues pulling inner central tube 5 and drives lower cone 19 to move upward, and promotes lower rubber cylinder 16, lower rubber cylinder steel body 15 and external bushing 17 simultaneously and moves up, and makes packing element 13 on lower rubber cylinder steel body 15 distendings.Last packing element 13 and lower rubber cylinder 16 realized setting after expanding and putting in place, and the tension force of spring 18 can guarantee that packing element continues sealing and deblocking not.Carry steel wire in the continuation, cut off shear pin 3, propose to throw in 1, finish setting operation.
The salvaging process of this anchoring device is as follows:
Carry fishing tool down to oil pipe seating and sealing unit upper end with steel wire, catch fishing head 2, on carry steel wire, drive to move and cut off on the exterior central tube 4 and salvage shear pin 8, open lobe flexible cone 9 and inwardly shrink, slips 7 unfreezings.Carry steel wire in the continuation, drive exterior central tube 4 and slip sleeve 6 continue up, make slips 7 complete unfreezings and do not meet card in putting forward process.Simultaneously, the last packing element steel body 11 of exterior central tube 4 drives and last packing element 13 are up, packing element 13 on the deblocking, and it is up to drive neck bush 12, compression spring 18, drive external bushing 17 and promote lower rubber cylinder steel body 15 and lower rubber cylinder 16 up, deblocking lower rubber cylinder 16, whole seating and sealing unit is proposed from oil pipe, finish fishing.
Claims (1)
1. anchoring device in the oil pipe is characterized in that:
The input head (1) of this anchoring device connects inner central tube (5) by shear pin (3); Exterior central tube (4) connects fishing head (2) and also is sleeved on inner central tube (5) top, and exterior central tube (4) outer wall is suit slip sleeve (6), slips (7) and open lobe flexible cone (9) by what salvage that shear pin (8) is connected successively from up to down; Last packing element steel body (11) seals and is sleeved on inner central tube (5) middle part by V-shaped seal ring (10), its top undergauge tube is connected in flexible cone (9) bottom outlet, its undergauge tube inwall connects the neck bush (12) of suit inner central tube (5), and its bottom surface connects the last packing element (13) of suit neck bush (12); Lower rubber cylinder steel body (15) seals and is sleeved on neck bush (12) bottom by sealing ring (14), its endoporus connects the external bushing (17) of suit neck bush (12), its bottom surface connects the lower rubber cylinder (16) of suit external bushing (17), and external bushing (17) is by neck bush (12) bottom supporting; Inner central tube (5) bottom outer wall is provided with convex shoulder, and convex shoulder below suit is by the spring (18) of neck bush (12) bottom supporting; Inner central tube (5) lower end connects the lower cone (19) by cone sealing ring (20) sealing, and lower cone (19) end face supports lower rubber cylinder (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100788 CN203230365U (en) | 2013-03-06 | 2013-03-06 | Anchoring device in oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100788 CN203230365U (en) | 2013-03-06 | 2013-03-06 | Anchoring device in oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230365U true CN203230365U (en) | 2013-10-09 |
Family
ID=49286498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320100788 Expired - Lifetime CN203230365U (en) | 2013-03-06 | 2013-03-06 | Anchoring device in oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230365U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696715A (en) * | 2014-01-07 | 2014-04-02 | 刘书豪 | Anchoring structure and underground blocking device |
| CN111927390A (en) * | 2020-08-17 | 2020-11-13 | 川南航天能源科技有限公司 | Anchoring device for safety valve in oil pipe |
-
2013
- 2013-03-06 CN CN 201320100788 patent/CN203230365U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696715A (en) * | 2014-01-07 | 2014-04-02 | 刘书豪 | Anchoring structure and underground blocking device |
| CN103696715B (en) * | 2014-01-07 | 2016-03-02 | 刘书豪 | A kind of anchoring structure and down-hole blocking device |
| CN111927390A (en) * | 2020-08-17 | 2020-11-13 | 川南航天能源科技有限公司 | Anchoring device for safety valve in oil pipe |
| CN111927390B (en) * | 2020-08-17 | 2021-10-29 | 川南航天能源科技有限公司 | Anchoring device for safety valve in oil pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |