CN104141466A - Drill rod bypass valve device - Google Patents
Drill rod bypass valve device Download PDFInfo
- Publication number
- CN104141466A CN104141466A CN201410349782.XA CN201410349782A CN104141466A CN 104141466 A CN104141466 A CN 104141466A CN 201410349782 A CN201410349782 A CN 201410349782A CN 104141466 A CN104141466 A CN 104141466A
- Authority
- CN
- China
- Prior art keywords
- plane
- spring
- valve body
- hole
- spool
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 claims description 34
- 210000002445 nipple Anatomy 0.000 claims description 13
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 230000033001 locomotion Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract 2
- 239000012530 fluid Substances 0.000 description 17
- 239000012535 impurity Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The invention relates to a drill rod bypass valve device. The drill rod bypass valve device comprises a valve body and a valve element. The lower portion of the valve body is provided with an outer conical thread connector. The valve body is internally provided with a through hole. The upper portion of the through hole is provided with an inner conical thread connector. The plane, adjacent to the valve body, of the valve element is an inclined plane I, the lower end of the inclined plane is provided with a limiting plane I, the valve body is internally provided with a horizontal hole internally provided with a spring and a reset block connected with the spring, the end, adjacent to the valve element, of the reset block is provided with an inclined plane II, and the lower end of the horizontal hole is provided with a limiting horizontal plane II. The vertical movement is transformed into the horizontal movement through the inclined planes, the compression amount of the spring is reduced, and therefore the spring is prevented from being excessively pressed. The distance of the vertical movement is limited through the limiting plane I and the limiting plane II, the spring is further prevented from being excessively pressed, the service life of the spring is prolonged, and accordingly the service life of the whole bypass valve is prolonged.
Description
Technical field
The present invention relates to helicoid hydraulic motor field, particularly, relate to a kind of drilling rod by-pass valve device.
Background technology
Need to use a large amount of helicoid hydraulic motors in oil and natural gas industry.Helicoid hydraulic motor is made up of four major parts, is respectively bypass valve, motor, universal drive shaft and power transmission shaft.Existing bypass valve is the accessory of helicoid hydraulic motor, be arranged on helicoid hydraulic motor in upper end, first its effect is to connect drill collar and centralizer sub, two to be that drilling fluid is with pressure in the time of turn on pump flow through when bypass valve inner via hole for it, motion is downward vertically until close voluntarily for bypass valve core, and drilling fluid is for the work of drive screw drilling tool and circulation; In the time of termination of pumping, make bypass valve inner via hole space be communicated with annular space, be the space of the drill string surrounding being suspended from well, annular space outer wall can be also the tubing string that external diameter is larger, is sometimes called as annular space.Cooling fluid flows to annular space, avoid making a trip and more when bit change the drilling fluid in drill string overflow.
Existing bypass valve operating principle: when work, valve cuts out, pump is opened, and drilling fluid forces spool to move downward, Compress Spring, spool is blocked the hole on valve body, and annular space is led in this hole, makes drilling fluid dirty.While quitting work, valve is opened, and pump cuts out, and owing to there is no the pressure of drilling fluid, under the effect of spring, spool moves upward, and makes the hole on valve body be communicated with drilling rod inner space and annular space.The hole having on valve body is also provided with filter, for filtering foreign matter.
The shortcoming of existing bypass valve is: when drilling liquid pressure is excessive, spring, by excess compression, exceeds its spring limit, and high strength repeatedly compression spring easily produces metal fatigue and makes spring failure.
Summary of the invention
Technical problem to be solved by this invention is to provide the drilling rod by-pass valve device that a kind of protectiveness is good, overcomes the problem that causes spring failure because of excessive and high-frequency Compress Spring.
The present invention addresses the above problem adopted technical scheme: drilling rod by-pass valve device, comprise valve body and spool, valve body lower end is provided with outer cone nipple, valve inner is provided with through hole, through hole upper end is provided with female cone nipple, the one side that spool and valve body are adjacent is inclined-plane I, I lower end, inclined-plane is provided with spacing plane I, valve inner offers lateral aperture, lateral aperture inside is provided with spring, and the resetting block being connected with spring, resetting block one end is that plane is connected with spring, the other end is that the inclined-plane I of inclined-plane II spool coordinates, described lateral aperture lower end is also provided with spacing horizontal plane II.
The threaded connector that outer cone nipple is offered in valve body lower end outer circumference surface contact ring vacancy, be used for connecting drill collar, female cone nipple is the threaded connector that inner peripheral surface contact interior bone place, valve body upper end offers, for jointed rod, inclined-plane I is small top and big bottom annular section, this tangent plane is equivalent to a upper base length short isosceles trapezoid of going to the bottom and rotates and form around central axis, inclined-plane II is big top and small bottom annular section, this tangent plane is equivalent to a short long isosceles trapezoid of going to the bottom of upper base and rotates and form around central axis, inclined-plane I and inclined-plane II are parallel to each other, spacing plane I is the horizontal annular tangent plane that is opened in spool outer wall, spacing Planar Mechanism is the horizontal annular tangent plane that is opened in valve interior wall, spacing plane I and spacing Planar Mechanism are parallel to each other and vertical direction has lap, lateral aperture is that through hole is pointed in annular lateral aperture and perforate, in annular lateral aperture, insert spring, annular resetting block is installed on spring again, on annular resetting block, offer inclined-plane II.
Further, in through hole between female cone nipple and spool, be provided with sieve plate I, drilling fluid contains partial impurities, through hole or the by-pass prot of impurities accumulation at most can valve body, affect the circulation of bypass valve entirety, required drilling fluid need be removed impurity rear and can enter in through hole, and drilling fluid is less through sieve plate I filtration rear impurity, can reduce the congestion affects to bypass valve.
Further, valve body periphery is also provided with the by-pass prot being communicated with through hole, in by-pass prot, be provided with sieve plate II, in by-pass prot, be connected with through hole, be connected with annular space outward, the arranging on the one hand in the time of termination of pumping of sieve plate II, drilling liquid flow filters drilling fluid during to annular space again, avoid impurity to enter in drilling well, prevent that on the other hand the impurity in annular space from entering in the through hole in bypass valve.
Further, sieve plate II is set to waveform foldable structure, has increased the contact area while filtration, makes filtration more abundant, further reduces impurity content.
In the time of turn on pump, while injecting drilling fluid in valve body inner via hole, drilling fluid starts squeezing through-hole inwall and produces pressure, because the effect spool of pressure moves vertically downward, in the time that spool moves downward inclined-plane I and contacts and start to push with inclined-plane II, resetting block starts to apply a horizontal applied force to spring, spool continues to move downward, resetting block starts slowly extrusion spring, spring due to be subject to the extruding of resetting block start shrink resetting block is headed in the lateral aperture in valve body by spool, until contacting with spacing horizontal plane II lap and start, spacing horizontal plane I pushes, while closing pump, through hole internal pressure reduces, spring starts to recover deformation and produces restoring force, under the effect of spring restoring force, resetting block upwards pushes up spool until spring deformation is replied completely.
To sum up, the invention has the beneficial effects as follows:
1, this structure will be moved both vertically and will be converted into horizontal movement by inclined-plane, the decrement of the spring reducing, thereby prevent that spring is by excess compression, spacing plane I and spacing Planar Mechanism limit the distance moving both vertically, further prevent that spring is by excess compression, improved the application life of spring, thus the application life of improving whole bypass valve.
2, owing to being provided with sieve plate I and sieve plate II, impurity in through hole in valve body is reduced, reduced the probability that bypass valve through hole stops up, simultaneously also less impurity content in drilling well, not only improve the application life of whole bypass valve, also reduced the impurity content of material to be mined.
Brief description of the drawings
Fig. 1 is the structural representation of bypass valve;
Fig. 2 is the structural representation of resetting-mechanism.
Mark and corresponding component title in accompanying drawing:
1-female cone nipple; 2-sieve plate I; 3-valve body; 4-inclined-plane I; 5-resetting block; 6-inclined-plane II; 7-spring; 8-lateral aperture; 9-spool; 10-spacing plane I; 11-spacing Planar Mechanism; 12-sieve plate II; 13-by-pass prot; 14-outer cone nipple.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is done to detailed description further, but embodiments of the present invention are not limited to this.
Embodiment 1: logical valve gear for other drilling rod as shown in Figure 1, comprise valve body 3 and spool 9, spool 9 is positioned at valve body 3 inside, the one side that spool 9 is adjacent with valve body 3 is inclined-plane I 4, I 4 lower ends in inclined-plane are provided with spacing plane I 10, and valve body 3 lower ends are provided with outer cone nipple 14, for connecting drill collar, valve body 3 inside are provided with lateral aperture 8, the resetting block 5 that lateral aperture 8 inside are provided with spring 7 and are connected with spring 7, resetting block 5 one end are that plane is connected with spring 7, the other end is that inclined-plane II 6 is adjacent with the inclined-plane I 4 on spool 9, lateral aperture 8 lower ends on valve body 3 are also provided with spacing horizontal plane II 11, as shown in Figure 2, Fig. 2 is the structural representation of resetting structure, in the time of turn on pump, in the through hole of valve body 3 inside, inject drilling fluid, liquid starts squeezing through-hole inwall and produces pressure, this pressure-acting moves spool 9 in spool 9 vertically downward, in the time that spool 9 moves downward inclined-plane I 4 and contacts and start to push with inclined-plane II 6, resetting block 5 starts to apply a horizontal applied force to spring 7, spool 9 continues to move downward vertically, resetting block 5 starts slowly extrusion spring 7, spring 7 due to be subject to the extruding of resetting block 5 start shrink resetting block 5 is headed in the lateral aperture 8 in valve body 3 by spool 9, until spacing horizontal plane I 10 contacts with spacing horizontal plane II 11, 9 of spools stop moving downward, spring 7 also stops compression, spool 9, resetting block 5 reaches a kind of balance with spring 7, while closing pump, because the pressure in through hole reduces, spring 7 starts to recover deformation, produce a kind of restoring force of replying, under the effect of spring 7 restoring forces, resetting block 5 starts just spool 9 and slowly upwards pushes up, until the deformation recovery of spring 7 is complete.To move both vertically and be converted into horizontal movement by inclined-plane, the decrement of the spring 7 reducing, thereby prevent that spring 7 is by excess compression, spacing plane I 10 and spacing Planar Mechanism 11 limit the distance moving both vertically, further prevent that spring 7 is by excess compression, improved the application life of spring 7, thus the application life of improving whole bypass valve; Valve body 3 inside are also provided with through hole, and through hole upper end is provided with female cone nipple 1, for jointed rod.
In through hole between female cone nipple 1 and spool 9, be provided with sieve plate I 2, drilling fluid contains partial impurities, through hole or the by-pass prot 13 of impurities accumulation at most can valve body 3, affect the circulation of bypass valve entirety, required drilling fluid need be removed impurity rear and can enter in through hole, and that drilling fluid filters rear impurity through sieve plate I 2 is less, can reduce the congestion affects to bypass valve.
Valve body 3 peripheries are also provided with the by-pass prot 13 being communicated with through hole, in by-pass prot 13, be provided with sieve plate II 12, sieve plate II 12 be designed to waveform foldable structure, this structure has increased the contact area while filtration, makes to filter more abundant, in by-pass prot 13, be connected with through hole, be connected with annular space outward, the arranging on the one hand in the time of termination of pumping of sieve plate II 12, drilling liquid flow filters drilling fluid during to annular space again, avoid impurity to enter in drilling well, prevent that on the other hand the impurity in annular space from entering in the through hole in bypass valve.
As mentioned above, can realize preferably the present invention.
Claims (4)
1. drilling rod by-pass valve device, comprise valve body (3) and spool (9), valve body (3) lower end is provided with outer cone nipple (14), described valve body (3) inside is provided with through hole, through hole upper end is provided with female cone nipple (1), it is characterized in that, the one side that described spool (9) is adjacent with valve body (3) is inclined-plane I (4), inclined-plane I (4) lower end is provided with spacing plane I (10), described valve body (3) inside offers lateral aperture (8), lateral aperture (8) inside is provided with spring (7), and the resetting block (5) being connected with spring (7), resetting block (5) one end is that plane is connected with spring (7), the other end is that inclined-plane II (6) coordinates with the inclined-plane I (4) of spool (9), described lateral aperture (8) lower end is also provided with spacing horizontal plane II (11).
2. drilling rod by-pass valve device according to claim 1, is characterized in that, in the through hole between described female cone nipple (1) and spool (9), is provided with sieve plate I (2).
3. drilling rod by-pass valve device according to claim 1, is characterized in that, described valve body (3) periphery is also provided with the by-pass prot (13) being communicated with through hole, is provided with sieve plate II (12) in by-pass prot.
4. drilling rod by-pass valve device according to claim 3, is characterized in that, described sieve plate II (12) is waveform foldable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410349782.XA CN104141466B (en) | 2014-07-23 | Drilling rod by-pass valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410349782.XA CN104141466B (en) | 2014-07-23 | Drilling rod by-pass valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104141466A true CN104141466A (en) | 2014-11-12 |
| CN104141466B CN104141466B (en) | 2017-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113181018A (en) * | 2021-04-02 | 2021-07-30 | 宁波秉航科技集团有限公司 | Massage movement, guide rail frame and massager |
| CN113324046A (en) * | 2021-05-28 | 2021-08-31 | 中国工程物理研究院总体工程研究所 | Axial driving type all-metal diaphragm valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5873414A (en) * | 1997-09-03 | 1999-02-23 | Pegasus International, Inc. | Bypass valve for downhole motor |
| CN201121518Y (en) * | 2007-10-26 | 2008-09-24 | 辽河石油勘探局 | Self-locking circulating sleeve of wireless measurement instrument while drilling |
| CN201306150Y (en) * | 2008-11-10 | 2009-09-09 | 王富涛 | Screw drill by-pass valve |
| CN203430452U (en) * | 2013-08-29 | 2014-02-12 | 成都科盛石油科技有限公司 | Bypass valve with good sealing performance for screw drill rod |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5873414A (en) * | 1997-09-03 | 1999-02-23 | Pegasus International, Inc. | Bypass valve for downhole motor |
| CN201121518Y (en) * | 2007-10-26 | 2008-09-24 | 辽河石油勘探局 | Self-locking circulating sleeve of wireless measurement instrument while drilling |
| CN201306150Y (en) * | 2008-11-10 | 2009-09-09 | 王富涛 | Screw drill by-pass valve |
| CN203430452U (en) * | 2013-08-29 | 2014-02-12 | 成都科盛石油科技有限公司 | Bypass valve with good sealing performance for screw drill rod |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113181018A (en) * | 2021-04-02 | 2021-07-30 | 宁波秉航科技集团有限公司 | Massage movement, guide rail frame and massager |
| CN113324046A (en) * | 2021-05-28 | 2021-08-31 | 中国工程物理研究院总体工程研究所 | Axial driving type all-metal diaphragm valve |
| CN113324046B (en) * | 2021-05-28 | 2022-09-27 | 中国工程物理研究院总体工程研究所 | Axial driving type all-metal diaphragm valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lin Wenshi Inventor before: Zhou Bin |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160926 Address after: 362400 Dongyang County, Quanzhou City, Anxi County sword fighting village in the village of Fujian No. 33 Applicant after: Lin Wenshi Address before: 610000 Chenghua District, Sichuan, Jianshe Road, No. 56, Applicant before: The Chengdu general petroleum works technology of height Co., Ltd |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20180723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |