CN207111012U - A kind of fluid erosion prevention drilling tool check valve - Google Patents
A kind of fluid erosion prevention drilling tool check valve Download PDFInfo
- Publication number
- CN207111012U CN207111012U CN201721103529.1U CN201721103529U CN207111012U CN 207111012 U CN207111012 U CN 207111012U CN 201721103529 U CN201721103529 U CN 201721103529U CN 207111012 U CN207111012 U CN 207111012U
- Authority
- CN
- China
- Prior art keywords
- check valve
- plate type
- valve body
- turnover plate
- type check
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 62
- 239000012530 fluid Substances 0.000 title claims abstract description 34
- 230000003628 erosive effect Effects 0.000 title claims abstract description 18
- 230000002265 prevention Effects 0.000 title claims abstract description 18
- 230000007306 turnover Effects 0.000 claims abstract description 88
- 210000004907 gland Anatomy 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 15
- 239000007788 liquid Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a kind of fluid erosion prevention drilling tool check valve, including valve body, locating ring, shielding sliding sleeve, back-moving spring, turnover plate type check valve spool, turnover panel, the valve body has endoporus step, the turnover plate type check valve spool lower surface is provided with torsion spring, described turnover panel one end torsion spring is hinged on turnover plate type check valve spool lower surface, and the back-moving spring is enclosed on shielding sliding sleeve；The locating ring, shielding sliding sleeve, turnover plate type check valve spool are arranged in valve body from top to bottom successively, the back-moving spring is located at the top of endoporus step, the turnover plate type check valve spool is located at the lower section of endoporus step, and the locating ring, turnover plate type check valve spool are connected with valve body screw thread.The utility model, which plays, improves drilling tool check valve reliability and life-span effect, realizes the purpose of safety drilling.
Description
Technical field
Jet-preventing tool in oil drilling tools is the utility model is related to, especially a kind of fluid erosion prevention drilling tool check valve.
Background technology
Jet-preventing tool is essential downhole tool in safety drilling in drilling tool.Due to turnover plate type in jet-preventing tool in drilling tool
Check-valves area of passage is big, is easy to, by bulky grain material and instrument, be used widely in engineering.Existing turnover plate type non-return
Valve application valve cover resets in use torsion spring, bonnet an ancient unit of weight equal to 20 or 24 *taels of silver spindle and sealing surface are exposed in swiftly flowing drilling fluid, are held
Easily by the erosion of drilling fluid, torsion spring often occurs and bonnet is hinged axle fracture, the erosion of check valve seal face, causes drilling tool check valve
Failure, loses sealing function.
Utility model content
Technical problem to be solved in the utility model is that solve deficiency of the prior art, there is provided one kind is returned valve and reliably prevented
Erosion drilling tool check valve.
Technical scheme is used by the utility model solves its technical problem：A kind of fluid erosion prevention drilling tool check valve, including
Valve body, locating ring, shielding sliding sleeve, back-moving spring, turnover plate type check valve spool, turnover panel,
The valve body has endoporus step, and the turnover plate type check valve spool lower surface is provided with torsion spring, the turnover panel one
End torsion spring is hinged on turnover plate type check valve spool lower surface, and the back-moving spring is enclosed on shielding sliding sleeve；
The locating ring, shielding sliding sleeve, turnover plate type check valve spool are arranged in valve body from top to bottom successively, the reset
Spring is located at the top of endoporus step, and the turnover plate type check valve spool is located at the lower section of endoporus step, the locating ring, turnover panel
Formula check valve spool is connected with valve body screw thread.
It is further that the turnover plate type check valve spool is provided with seal spool.
It is further to be provided with gland between the shielding sliding sleeve and valve body, the gland bottom has interior step, described
Back-moving spring bottom surface is pressed on interior step.
Be further, the valve body include threaded connection upper valve body and lower valve body, the locating ring, shielding sliding sleeve,
Back-moving spring is arranged in upper valve body, and the turnover plate type check valve spool is threaded in lower valve body, the upper valve body bottom
With endoporus step.
Effect of the present utility model is：When not injecting drilling fluid from top to bottom into drilling tool, shielding slides over reset bullet
Under spring effect, it is automatically moved up leaving valve plate close space, valve plate shutoff valve core passage under torsion spring effect, reaches isolation and bore
Have float valve fluid purpose up and down, realize the purpose of safety drilling；When injecting drilling fluid into drilling tool from top to bottom, valve plate is boring
Opened under well action of hydraulic force, circulation of drilling fluid Path Setup, it is possible to achieve normal drilling well；Shielding slides over drilling fluid flowing pressure
Under difference promotes, back-moving spring resistance is overcome to move downward, drilling fluid is from shielding sliding sleeve by shielding sliding sleeve by valve plate, valve plate
Torsion spring and valve element, sealing surface of valve plate are isolated with flow at high speed drilling fluid, prevent turnover plate type check-valves defendant's high speed drill well liquid erosion,
Play and improve drilling tool check valve reliability and life-span effect, realize the purpose of safety drilling.
Brief description of the drawings
Fig. 1 is structural representation when embodiment one does not work；
Fig. 2 is structural representation when embodiment one works；
Fig. 3 is structural representation when embodiment two does not work；
Fig. 4 is structural representation when embodiment two works；
Fig. 5 is structural representation when embodiment three does not work；
Fig. 6 is structural representation when embodiment three works.
Shown in figure：101- valve bodies, 102- locating rings, 103- shielding sliding sleeves, 104- back-moving springs, 105- turnover plate type non-returns
Valve core, 106- seal spools, 107- turnover panels, 108- glands, 109- upper valve bodies, 110- lower valve bodies.
Embodiment
Further detailed description is done to the utility model with reference to the accompanying drawings and examples.
Embodiment one
As shown in Fig. 1 to 2, the first embodiment of the utility model, a kind of fluid erosion prevention drilling tool check valve, including valve body 101,
Locating ring 102, shielding sliding sleeve 103, back-moving spring 104, turnover plate type check valve spool 105, turnover panel 107, the valve body 101 have
Endoporus step, the lower surface of turnover plate type check valve spool 105 are provided with torsion spring, and one end torsion spring of turnover panel 107, which is hinged on, to be turned over
On the lower surface of plate check valve valve element 105, the back-moving spring 104 is enclosed on shielding sliding sleeve 103；The locating ring 102, shielding
Sliding sleeve 103, turnover plate type check valve spool 105 are arranged in valve body 101 from top to bottom successively, and the back-moving spring 104 is positioned at interior
The top of hole platform rank, the turnover plate type check valve spool 105 are located at the lower section of endoporus step, and the locating ring 102, turnover plate type stop
Return valve core 105 to be threadedly coupled with valve body 101, the turnover plate type check valve spool 105 is provided with seal spool 106.
Wherein the both ends of valve body 101 have the screw thread being connected with drilling tool, as shown in figure 1, locating ring 102 and the inwall of valve body 101
Threaded connection, shielding sliding sleeve 103 can be in axial sliding in valve body 101, and back-moving spring 104 is socketed in outside shielding sliding sleeve 103,
There is step the upper end of back-moving spring 104, and the one end of back-moving spring 104 is withstood on the step of shielding sliding sleeve 103, and back-moving spring 104 is another
End is withstood on the endoporus step of valve body 101.Turnover plate type check valve spool 105 is mounted in the endoporus of valve body 101 and withstands on the endoporus of valve body 101
On step, there is seal spool 106 outside turnover plate type check valve spool 105, seal spool 106 seals turnover plate type check valve spool 105
With valve body 101.Turnover plate type check valve spool 105 links with turnover panel 107 and has torsion spring to overturn turnover panel 107.
As shown in figure 1, when not injecting drilling fluid from top to bottom into drilling tool, shielding sliding sleeve 103 is in back-moving spring 104
Moved up under effect and withstand locating ring 102, turnover panel 107 overturns and sealed in turnover plate type check valve spool 105 under torsion spring effect
Hole, now the following fluid of turnover plate type check-valves can not enter turnover plate type check-valves above drilling tool, realize in drilling tool blowout prevention safety.Such as
Shown in Fig. 2, when injecting drilling fluid from top to bottom into drilling tool, turnover panel 107 overturns under drilling liquid pressure effect and opened, shielding
Sliding sleeve 103 overcomes the resistance of back-moving spring 104 to move down under differential pressure action, through the endoporus of turnover plate type check valve spool 105, bores
Well liquid is from the shielding endoporus of sliding sleeve 103 by the way that shielding sliding sleeve 103 is turnover plate type check valve spool 105, turnover panel 107 and high speed drilling
Liquid is isolated, and is played fluid erosion prevention and is improved drilling tool check valve reliability and the purpose in life-span.When stop into drilling tool from up to
During lower injection drilling fluid, shielding sliding sleeve pressure differential collapses about 103, shielding sliding sleeve 103 is moved up and pushed up under the effect of back-moving spring 104
Firmly locating ring 102, turnover panel 107 overturn under torsion spring effect and seal the endoporus of turnover plate type check valve spool 105, and now turnover plate type stops
Turnover plate type check-valves above drilling tool can not be entered by returning the following fluid of valve, realize blowout prevention safety in drilling tool.
Embodiment two
As shown in Figures 3 and 4, second of embodiment of the present utility model, a kind of fluid erosion prevention drilling tool check valve, including valve body
101, there is the screw thread being connected with drilling tool at the both ends of valve body 101, have locating ring 102 in valve body 101, shield sliding sleeve 103, gland 108, answer
Position spring 104, turnover plate type check valve spool 105, seal spool 106, turnover panel 107.As shown in figure 4, locating ring 102 and valve body
101 inner threads connect, and shielding sliding sleeve 103 can be in axial sliding in valve body 101, and back-moving spring 104 is socketed in shielding and slided
Outside set 103, shielding sliding sleeve 103 is arranged in gland 108, and there is step the upper end of back-moving spring 104, and the lower end of gland 108 has step,
For back-moving spring 104 between shielding sliding sleeve 103, gland 108, the one end of back-moving spring 104 withstands on the step of shielding sliding sleeve 103
On, the other end of back-moving spring 104 is withstood on the step of gland 108.Turnover plate type check valve spool 105 is mounted in the endoporus of valve body 101 and pushes up
On the endoporus step of valve body 101, there is seal spool 106 outside turnover plate type check valve spool 105, seal spool 106 seals turnover plate type
Check valve spool 105 and valve body 101.Turnover plate type check valve spool 105 links with turnover panel 107 and has torsion spring to overturn turnover panel 107.
As shown in figure 4, when not injecting drilling fluid from top to bottom into drilling tool, shielding sliding sleeve 103 is in back-moving spring 104
Moved up under effect and withstand locating ring 102, turnover panel 107 overturns and sealed in turnover plate type check valve spool 105 under torsion spring effect
Hole, now the following fluid of turnover plate type check-valves can not enter turnover plate type check-valves above drilling tool, realize in drilling tool blowout prevention safety.Such as
Shown in Fig. 5, when injecting drilling fluid from top to bottom into drilling tool, turnover panel 107 overturns under drilling liquid pressure effect and opened, shielding
Sliding sleeve 103 overcomes the business resistance of back-moving spring 104 to move down under differential pressure action, through the endoporus of turnover plate type check valve spool 105,
Drilling fluid is from the shielding endoporus of sliding sleeve 103 by the way that shielding sliding sleeve 103 is turnover plate type check valve spool 105, turnover panel 107 and high speed drill
Well liquid is isolated, and is played fluid erosion prevention and is improved drilling tool check valve reliability and the purpose in life-span.When stop into drilling tool from upper
During to lower injection drilling fluid, shielding sliding sleeve pressure differential collapses about 103, shielding sliding sleeve 103 moves up simultaneously under the effect of back-moving spring 104
Locating ring 102 is withstood, turnover panel 107 overturns under torsion spring effect and seals the endoporus of turnover plate type check valve spool 105, now turnover plate type
The following fluid of check-valves can not enter turnover plate type check-valves above drilling tool, realize blowout prevention safety in drilling tool.
Embodiment three
As it can be seen in figures 5 and 6, second of embodiment of the present utility model, a kind of fluid erosion prevention drilling tool check valve, including valve body
101st, locating ring 102, shielding sliding sleeve 103, back-moving spring 104, turnover plate type check valve spool 105, turnover panel 107, the valve body 101
Upper valve body 109 and lower valve body 110 including threaded connection, the locating ring 102, shielding sliding sleeve 103, back-moving spring 104 are installed
In upper valve body 109, the turnover plate type check valve spool 105 is threaded in lower valve body 110, the bottom of upper valve body 109
With endoporus step.Locating ring 102 is connected with the inner thread of upper valve body 109, and shielding sliding sleeve 103 can be made in upper valve body 109
Slide axially, back-moving spring 104 is socketed in outside shielding sliding sleeve 103, and the one end of back-moving spring 104 withstands on the step of shielding sliding sleeve 103
On, the other end of back-moving spring 104 is withstood on the endoporus step of upper valve body 109.Turnover plate type check valve spool 105 is mounted in lower valve body
110 endoporus are simultaneously withstood on the endoporus step of upper valve body 109, have seal spool 106 outside turnover plate type check valve spool 105, valve element is close
The sealing turnover plate type of envelope 106 check valve spool 105 and valve body 101.Turnover plate type check valve spool 105 links with turnover panel 107 and has torsion
Spring overturns turnover panel 107.The working method of embodiment three is the same as embodiment one.
Claims (4)
1. a kind of fluid erosion prevention drilling tool check valve, it is characterised in that including valve body (101), locating ring (102), shielding sliding sleeve
(103), back-moving spring (104), turnover plate type check valve spool (105), turnover panel (107),
The valve body (101) has endoporus step, and turnover plate type check valve spool (105) lower surface is provided with torsion spring, described
Turnover panel (107) one end torsion spring is hinged on turnover plate type check valve spool (105) lower surface, and the back-moving spring (104) is enclosed on screen
Cover on sliding sleeve (103)；
The locating ring (102), shielding sliding sleeve (103), turnover plate type check valve spool (105) are arranged on valve body from top to bottom successively
(101) in, the back-moving spring (104) is located at the top of endoporus step, and the turnover plate type check valve spool (105) is located at endoporus
The lower section of step, the locating ring (102), turnover plate type check valve spool (105) are threadedly coupled with valve body (101).
A kind of 2. fluid erosion prevention drilling tool check valve according to claim 1, it is characterised in that the turnover plate type check valve spool
(105) it is provided with seal spool (106).
A kind of 3. fluid erosion prevention drilling tool check valve according to claim 1 or 2, it is characterised in that the shielding sliding sleeve (103)
Gland (108) is provided between valve body (101), gland (108) bottom has interior step, back-moving spring (104) bottom
Face pressure is on interior step.
4. a kind of fluid erosion prevention drilling tool check valve according to claim 3, it is characterised in that the valve body (101) includes spiral shell
The upper valve body (109) and lower valve body (110) of line connection, the locating ring (102), shielding sliding sleeve (103), back-moving spring (104)
In upper valve body (109), the turnover plate type check valve spool (105) is threaded in lower valve body (110), the upper valve
Body (109) bottom has endoporus step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721103529.1U CN207111012U (en) | 2017-08-31 | 2017-08-31 | A kind of fluid erosion prevention drilling tool check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721103529.1U CN207111012U (en) | 2017-08-31 | 2017-08-31 | A kind of fluid erosion prevention drilling tool check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111012U true CN207111012U (en) | 2018-03-16 |
Family
ID=61586546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721103529.1U Active CN207111012U (en) | 2017-08-31 | 2017-08-31 | A kind of fluid erosion prevention drilling tool check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111012U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924884A (en) * | 2020-02-20 | 2020-03-27 | 东营市创元石油机械制造有限公司 | Drilling tool float valve with automatic protection |
| CN111594081A (en) * | 2020-06-06 | 2020-08-28 | 青岛宏新天机械有限公司 | Integral well drilling float valve |
| CN113914810A (en) * | 2021-12-15 | 2022-01-11 | 西南石油大学 | Matching assembly for blowout preventer in drilling tool |
-
2017
- 2017-08-31 CN CN201721103529.1U patent/CN207111012U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924884A (en) * | 2020-02-20 | 2020-03-27 | 东营市创元石油机械制造有限公司 | Drilling tool float valve with automatic protection |
| CN110924884B (en) * | 2020-02-20 | 2020-05-19 | 东营市创元石油机械制造有限公司 | Drilling tool float valve with automatic protection |
| CN111594081A (en) * | 2020-06-06 | 2020-08-28 | 青岛宏新天机械有限公司 | Integral well drilling float valve |
| CN113914810A (en) * | 2021-12-15 | 2022-01-11 | 西南石油大学 | Matching assembly for blowout preventer in drilling tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207111012U (en) | A kind of fluid erosion prevention drilling tool check valve | |
| US5501280A (en) | Casing filling and circulating apparatus and method | |
| CN102325956B (en) | Bidirectional sealing mechanically shifted ball valve for downhole use | |
| RU2448238C2 (en) | Well hydraulic control system with fail-safe characteristics (versions) | |
| US6318400B1 (en) | Low interflow hydraulic shuttle valve | |
| EP2216499B1 (en) | Bidirectional ram bop and method | |
| US20140284112A1 (en) | Mud saver valve and method of operation of same | |
| US3850194A (en) | Check valve assembly | |
| CN201884002U (en) | Drilling downhole check valve | |
| US4598773A (en) | Fail-safe well safety valve and method | |
| CN210049870U (en) | Hydraulic control constant pressure backwashing valve | |
| US3433252A (en) | Fluid conduit valve | |
| WO2016025264A1 (en) | A swivel | |
| CN212454325U (en) | Well head drilling fluid check valve | |
| CN106949264A (en) | A kind of underground check-valves | |
| CN211314144U (en) | Throttling bypass valve for continuous oil pipe | |
| CN106522900A (en) | Bidirectional blowout-prevention ball seat for control over fluid in water well shaft | |
| CN205479525U (en) | Check valve in pit | |
| CN203321418U (en) | Near-bit downhole blowout preventer | |
| CN104314492A (en) | Application method of bypass valve | |
| CN105889529A (en) | Plunger type well drilling throttle valve | |
| CN110671066A (en) | Oil filling float valve for petroleum drilling | |
| US3270765A (en) | Gas lift valves | |
| CA3231290A1 (en) | Automatic choking hydraulic shock reduction valve | |
| CN205297501U (en) | Dirty water injection ball seat is arranged to general anti -overflow of high pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An anti erosion check valve for drilling tools Effective date of registration: 20221011 Granted publication date: 20180316 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU SOUTHWEST PETROLEUM UNIVERSITY PETROLEUM ENGINEERING TECHNOLOGY Co.,Ltd. Registration number: Y2022980017638 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230505 Granted publication date: 20180316 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU SOUTHWEST PETROLEUM UNIVERSITY PETROLEUM ENGINEERING TECHNOLOGY Co.,Ltd. Registration number: Y2022980017638 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An anti erosion drilling tool check valve Effective date of registration: 20230724 Granted publication date: 20180316 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU SOUTHWEST PETROLEUM UNIVERSITY PETROLEUM ENGINEERING TECHNOLOGY Co.,Ltd. Registration number: Y2023980049479 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20180316 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU SOUTHWEST PETROLEUM UNIVERSITY PETROLEUM ENGINEERING TECHNOLOGY Co.,Ltd. Registration number: Y2023980049479 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |