CN207080214U - A kind of well head catches ball device - Google Patents
A kind of well head catches ball device Download PDFInfo
- Publication number
- CN207080214U CN207080214U CN201720846386.7U CN201720846386U CN207080214U CN 207080214 U CN207080214 U CN 207080214U CN 201720846386 U CN201720846386 U CN 201720846386U CN 207080214 U CN207080214 U CN 207080214U
- Authority
- CN
- China
- Prior art keywords
- check valve
- ball
- baffle plate
- well head
- ball device
- 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
Links
- 239000002184 metal Substances 0.000 claims abstract description 45
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 238000011010 flushing procedure Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract description 4
- 238000010008 shearing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 239000004576 sand Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a kind of well head to catch ball device, including outer barrel and check valve body, and the side wall of the outer barrel offers apopore, and the check valve body is socketed in outer barrel, and the apopore is closed in initial position；The ball seat of the check valve body is adapted to the check valve for forming and preventing flushing fluid from flowing up with the metal ball for the row of returning；The check valve opens apopore in indicating positions.Metal ball promotes ball seat in the presence of flushing fluid, and shear pin is cut, and baffle plate is fallen in the presence of torsionspring, blocks the loop of metal ball, while part flushing fluid sprays from apopore.This is caught ball device and reliably prevent falling of the metal ball into well, has the capture of readily identified metal ball, occupies little space, the advantages of being easily installed.
Description
Technical field
It the utility model is related to oil, natural gas extraction special equipment field, more particularly to a kind of well head and catch ball device.
Background technology
Well head catches selective sand control or the separate stratum fracfturing operation that ball device is generally used in oil, gas exploitation course.Dividing
In layer sand control process, input metal ball makes packer setting, then carries out other sand control treatments；During separate stratum fracfturing, input
Metal ball successively opens fracturing sliding bush, then carries out other fracturing works.It is convenient subsequently to be made in order to avoid blocking underground passage
Industry, it is necessary to metal ball is returned and drains into ground, catching ball device with well head is captured.
The well head used at present catches three defects of ball device generally existing, be first can not automatic identification metal ball whether
Capture, next to that metal ball, into after catching ball device, once termination of pumping, meeting is fallen into well again under the back pressure effect of fluid column, the
Third, existing ball device of catching generally is provided with the devices such as some pipe nipples, valve in cylindrical outer wall, cause radial dimension excessive, to installation
Cause difficulty.
The U of publication number CN 203685100 Chinese patent is authorized, slicing and filling sand control catches ball device, discloses one kind and catch ball
Device, including box cupling, cover of blocking, spring, lock claw, lock put cylinder etc., and lock, which is put, sets expansion segment on the inwall of cylinder, the lower port of lock claw
Diameter is less than upper diameter and forms boss, and metal ball is pressed on the boss of lock claw, under the promotion of liquid on move to expansion segment, lock
Pawl is discharged, and metal ball lock claw return under the action of the spring, ball is captured by boss.This, which is caught after ball device captures ball, does not have
Obvious display, can not automatic identification；Metal ball can not be fully sealed, it is necessary to which very big discharge capacity could promote metal ball with boss
Move up.
Authorize the U of publication number CN 204024558 Chinese patent, fracture well head catches ball device, including top connection, cross flow cartridge,
Receive cylinder and lower contact, cylinder of receiving connect with crossing flow cartridge, is equipped with cylinder of receiving and catches ball valve and relief valve or blind plugging；Cross flow cartridge both ends
Be connected respectively with top connection and lower contact, in top connection and cross between flow cartridge retaining spring be housed, cross flow cartridge and lower contact it
Between kick back is housed.This catch ball device by monitor metal ball enter receive cylinder vibrations and sound come judge whether capture metal
Ball, poor reliability；Receive and cylinder, relief valve and catch ball valve and cross that flow cartridge is vertical and must place vertically, and space-consuming is excessive, install
It is difficult.
Authorize the U of publication number CN 204627490 Chinese patent, catch ball device, including top connection, outer tube, inner sleeve and
Multiple retention devices, including fixing axle, activity refer to and resetting means（Such as torsion spring）, inner sleeve is provided with boss, liquid pass hole and peace
Fill hole.When metal ball enters inner sleeve, activity is referred into jack-up, continues to go upward to top to boss, well liquid flow path is forced
Change, because runner reduces, be pumped obvious rise.The device judges whether capture metal ball by the change of pump pressure, due to
Pump pressure change unobvious, are not easy to grasp；It is weaker that activity refers to intensity, is easily damaged.
The U of publication number CN 205858235 Chinese patent is authorized, one kind, which visualizes, catches ball device, including ball storage barrel, variable buckle are short
Section, threeway pipe nipple, short oil pipe, wherein ball storage barrel are made up of outer barrel and transparent inner cylinder, and outer barrel is provided with some observation windows, variable buckle
The side wall of pipe nipple is provided with net cylinder of blocking, and can observe directly whether capture metal ball through transparent inner cylinder by observation window.
The device does not prevent metal ball from falling back to the function in well, and metal ball easily blocks net cylinder of blocking, bulky, is not easy
Installation.
Utility model content
The purpose of this utility model is to provide a kind of well head and catches ball device, and this, which catches ball device, can capture selective sand control or layering pressure
The metal ball of the row of returning in operation is split, and can prevent metal ball from falling after rise in well, has and is easy to judge whether capture, small volume,
The advantages of easy for installation；Concrete technical scheme is：
A kind of well head catches ball device, including outer barrel and check valve body, and the side wall of the outer barrel offers apopore, described unidirectional
Valve body is socketed in outer barrel, and the apopore is closed in initial position；The check valve body is adapted to composition with the metal ball for the row of returning
The check valve for preventing flushing fluid from flowing up；The check valve opens apopore, the lower section of the check valve body in indicating positions
It is provided with and catches ball machine structure.
Further, the check valve body is connected by shear pin with the ball machine structure of catching.
Further, it is provided with annular seal pocket on the outer wall of the check valve body.
Further, the ball machine structure of catching includes baffle plate, and the trip shaft of the baffle plate is arranged on the bottom of baffle plate.
Further, catching for the baffle plate is provided with through hole on sphere.
Further, the baffle plate turning angle is less than 90 degree.
Further, the baffle plate is provided with surface groove close to pin shaft hole side.
Further, the through hole is provided with guide surface catching sphere side.
The utility model well head catches the initial position that ball device catches mechanism by setting ball seat to fix, when metal ball enters goal
After seat, shear pin is cut under the effect of the pressure, exposes the apopore of outer barrel, and partially liq sprays from apopore, can be automatic
Judge that metal ball has captured；Baffle plate is fallen in the presence of torsionspring simultaneously, prevents metal ball from falling after rise to well, baffle plate is strong
Degree is high；Monnolithic case is cylindrical shape, occupies little space, is easily installed.
Brief description of the drawings
Fig. 1 is that the utility model well head catches ball device operation principle schematic diagram；
Fig. 2 is that the utility model well head catches ball device operation principle schematic diagram；
Fig. 3 is ball socket structure schematic diagram；
Fig. 4 is shearing barrel structure schematic diagram；
Fig. 5 is shearing barrel structure schematic diagram；
Fig. 6 is baffle arrangement schematic diagram.
In figure：1st, take over；2nd, outer barrel；2-1, coordinate section；2-2, seal section；2-3, apopore；3rd, cylinder is sheared；3-1, baffle plate
Groove；3-2, shear pin nail；3-3, shearing cylinder pin axis hole；4th, torsionspring；5th, bearing pin；6th, baffle plate；6-1, surface groove；6-2, gear
Plate pin shaft hole；6-3, through hole；7th, shear pin；8th, metal ball；9th, ball seat；9-1, the conical surface；9-2, annular groove；10th, baffle plate is taken over.
Embodiment
The utility model is more fully illustrated below with embodiment.The utility model can be presented as it is a variety of not
Same form, it is not construed as being confined to the exemplary embodiment described here.
For ease of explanation, space relative terms such as " on ", " under " " left side " " right sides " can be used herein, for saying
The element or feature shown in bright figure is relative to another element or the relation of feature.It should be understood that except in figure
Outside the orientation shown, spatial terminology is intended to include the different azimuth of device in use or operation.If for example, in figure
Device is squeezed, be stated as positioned at other elements or feature " under " element will be located into other elements or feature " on ".Cause
This, exemplary term " under " both upper and lower orientation can be included.Device can be positioned otherwise（It is rotated by 90 ° or is located at
Other orientation）, can correspondingly be explained used herein of the relative explanation in space.
As shown in Figure 1 and Figure 2, the well head in the present embodiment catches ball device, including outer barrel 2 and ball seat 9, the side wall of outer barrel 2 open up
There is apopore 2-3, ball seat 9 is socketed in outer barrel 2.Ball seat 9 blocks apopore 2-3 in initial position in the inwall side of outer barrel 2, uses
Water hole 2-3 is closed.Ball seat 9 be adapted to as check valve body with the metal ball 8 for the row of returning composition prevent flushing fluid flow up it is unidirectional
Valve；Under the pressure of flushing fluid, check valve can be moved upwards, and when check valve moves to indicating positions, ball seat 9 is no longer blocked out
Water hole 2-3, open apopore 2-3.The conical surface 9-1 that ball seat 9 coordinates with metal ball 8 is arranged to circular conical surface,
As shown in figure 3, the inwall of outer barrel 2 includes three sections, hypomere is coordinates section 2-1, and stage casing is seal section 2-2, and epimere is
Cavity volume section.Ball seat 9 is socketed by seal section 2-2 and outer barrel 2, seal section 2-2, coordinates section 2-1 and cavity volume section to be the face of cylinder.Its
In, seal section 2-2 diameter is less than the diameter for coordinating section 2-1 and cavity volume section.Apopore 2-3 can be arranged on seal section 2-2's
On barrel, it can also be arranged on barrel more than seal section 2-2.If placed on more than seal section 2-2 barrel, metal
After ball 8 and ball seat 9 coordinate, apopore 2-3 could be closed in initial position；Before causing metal ball 8 and the cooperation of ball seat 9, have
Water sprays from apopore 2-3, and indicating effect is not so good as the scheme being arranged on apopore 2-3 on seal section 2-2 barrel.
Because seal section 2-2 diameter is less than cooperation section 2-1 and the diameter of cavity volume section, after ball seat 9 enters cavity volume, even if under
Fall, can not also realize the cooperation with seal section 2-2, into seal section 2-2；So as to avoid ball seat 9 from falling, apopore 2-3 is closed
Close, influence instruction of the device to the state in place of metal ball 8.
It can also be set in the lower section of ball seat 9 and catch ball machine structure；Prevent metal ball 8 from coming off by catching ball machine structure.
Catching ball machine structure includes baffle plate 6 and bearing pin 5, and the trip shaft of baffle plate 6 is arranged on the bottom of baffle plate 6.Metal ball 8 to
On, drive ball seat 9 to move upwards；After unlocking, baffle plate 6 is inwardly overturn, and outer is supported on the barrel on trip shaft opposite, resistance
Gear metal ball 8 comes off.
As shown in figure 4, it is provided with annular seal pocket on the outer wall of ball seat 9；Sealing ring is arranged on can in annular seal pocket
To improve the sealing property between ball seat 9 and the inwall of outer barrel 2；Reduce the processing essence needed between ball seat 9 and outer barrel 2 by sealing
Degree.
As shown in fig. 6, after baffle plate 6 is overturn, above to catch sphere, catch and through hole 6-3 is provided with sphere.By setting through hole
Reduce the area of plane for catching sphere, reduce pressure of the flushing fluid to baffle plate 6, baffle plate 6 is opened as early as possible.
The length and width of baffle plate 6 coordinates the flip angle that should ensure that baffle plate 6 to be less than 90 degree.80 degree had better not be more than,
To provide enough intensity, metal ball 8 comes off when avoiding catching ball.
Abrasion after ball to metal ball 8 is caught in order to reduce, the through hole 6-3 set on baffle plate 6 is provided with catching sphere side
Guide surface.
In order to improve the opening speed of baffle plate 6, torsionspring 4 is provided with bearing pin 5.The one end of torsionspring 4, which is stuck in, cuts
Cut on an inwall, one end is stuck on baffle plate 6.Surface groove 6-1 can be set close to baffle plate pin shaft hole 6-2 sides in baffle plate 6；It is convenient
The installation of torsionspring 4.
In order to improve the reliability for catching ball device, shearing cylinder 3 is additionally arranged in the present embodiment, shearing cylinder 3, which is socketed in, coordinates section 2-
1, ball machine structure will be caught and be arranged on the barrel of shearing cylinder 3.Ball seat 9 is connected with shearing cylinder 3 by shear pin 7.As shown in figure 5,
Shear and baffle plate groove 3-1 is offered on the barrel of cylinder 3, baffle plate 6 is arranged in baffle plate groove 3-1.In initial position, the lower end of ball seat 9
Baffle plate 6 is propped up, prevents baffle plate 6 from inwardly overturning；After flushing fluid, which jacks up metal ball 8, cooperatively forms check valve with ball seat 9, well-flushing
Liquid can not continue up flowing.Step between seal section 2-2 and cooperation section 2-1 prevents shearing cylinder 3 from moving upwards, due to cutting
Cut pin 7 to connect, check valve can not move upwards.When pressure continues to increase, the stress of ball seat 9 is more than the intensity of shear pin 7
Afterwards, shear pin 7 is cut；Check valve moves upwards under the promotion of flushing fluid；Baffle plate 6 is overturn after departing from the locking of ball seat 9.
In order to facilitate processing, it is easy to shear pin 7 to position, the outer wall of ball seat 9 corresponds to the installation site of shear pin 7 and sets ring
Shape groove 9-2.
In order to facilitate switching, baffle plate adapter 10 and adapter 1 can be equipped with the upper and lower ends of outer barrel 2.
During installation, adapter 1 is connected with the drilling rod in well head or oil pipe, and baffle plate adapter 10 is connected with manifold of ground.The row of returning makees
During industry, flushing fluid carries the conical surface 9-1 that metal ball 8 enters ball seat 9 under the driving of pump pressure, as shown in figure 1, in the promotion of pressure
Down cut pin 7 is cut, and ball seat 9 continues to move right, and the apopore 2-3 of outer barrel 2 exposes, and a part of flushing fluid can be from water outlet
Hole 2-3 sprays, and instruction metal ball 8 has been captured；Baffle plate 6 is fallen in the presence of torsionspring 4 simultaneously.As long as not termination of pumping,
Apopore 2-3 has water ejection all the time, will not produce erroneous judgement.
As shown in Fig. 2 fluid column back pressure drives metal ball 8 to move downward after termination of pumping, metal ball 8 is stuck on baffle plate 6, can not
Fall back in well.Well head finally is caught into ball device to pull down from pipeline, baffle plate adapter 10 is pulled down from outer barrel 2, can be taken off metal
Ball 8.
Above-mentioned example is only intended to illustrate the utility model, in addition, also a variety of different embodiments, and these
Embodiment be all those skilled in the art after comprehension the utility model thought it is also envisioned that therefore, no longer arrange one by one herein
Lift.
Claims (8)
1. a kind of well head catches ball device, it is characterised in that including outer barrel and check valve body, the side wall of the outer barrel offers water outlet
Hole, the check valve body are socketed in outer barrel, and the apopore is closed in initial position；The check valve body and the metal for the row of returning
Ball adaptation forms the check valve for preventing flushing fluid from flowing up；The check valve opens apopore in indicating positions, described unidirectional
It is provided with below valve body and catches ball machine structure.
2. well head as claimed in claim 1 catches ball device, it is characterised in that the check valve body is caught by shear pin with described
Ball machine structure connects.
3. well head as claimed in claim 1 catches ball device, it is characterised in that it is close to be provided with ring-type on the outer wall of the check valve body
Sealing groove.
4. well head as claimed in claim 1 catches ball device, it is characterised in that the ball machine structure of catching includes baffle plate, the baffle plate
Trip shaft is arranged on the bottom of baffle plate.
5. well head as claimed in claim 4 catches ball device, it is characterised in that catching for the baffle plate is provided with through hole on sphere.
6. well head as claimed in claim 4 catches ball device, it is characterised in that the baffle plate turning angle is less than 90 degree.
7. well head as claimed in claim 4 catches ball device, it is characterised in that the baffle plate is provided with inclined-plane close to pin shaft hole side
Groove.
8. well head as claimed in claim 5 catches ball device, it is characterised in that the through hole is provided with guiding catching sphere side
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846386.7U CN207080214U (en) | 2017-07-13 | 2017-07-13 | A kind of well head catches ball device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846386.7U CN207080214U (en) | 2017-07-13 | 2017-07-13 | A kind of well head catches ball device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207080214U true CN207080214U (en) | 2018-03-09 |
Family
ID=61427231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720846386.7U Expired - Fee Related CN207080214U (en) | 2017-07-13 | 2017-07-13 | A kind of well head catches ball device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207080214U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178353A (en) * | 2017-07-13 | 2017-09-19 | 重庆峰丽能源技术有限公司 | A kind of well head catches ball device |
-
2017
- 2017-07-13 CN CN201720846386.7U patent/CN207080214U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178353A (en) * | 2017-07-13 | 2017-09-19 | 重庆峰丽能源技术有限公司 | A kind of well head catches ball device |
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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: 20180309 |