CN104110228A - Sand-proof bypass valve device for drill rod - Google Patents
Sand-proof bypass valve device for drill rod Download PDFInfo
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- CN104110228A CN104110228A CN201410349781.5A CN201410349781A CN104110228A CN 104110228 A CN104110228 A CN 104110228A CN 201410349781 A CN201410349781 A CN 201410349781A CN 104110228 A CN104110228 A CN 104110228A
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- spring
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- spool
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Abstract
The invention relates to a sand-proof bypass valve device for a drill rod. The sand-proof bypass valve device for the drill rod comprises a valve body and valve core, the lower portion of the valve body is provided with an external tapered thread joint, the inside of the valve body is provided with a through hole, the upper portion of the through hole is provided with an internal tapered thread joint, one surface of the valve core, which is adjacent to the valve body, is an inclined plane I, the lower end of the inclined plane I is provided with a limit plane I, horizontal holes are formed inside the valve body, the tail end of each horizontal hole is provided with a limit protrusion I, springs and reset blocks are arranged inside the horizontal holes, the reset blocks are arranged at the ends of the horizontal holes, one end of each reset block is a plane connected with the corresponding spring, the other end of the reset block is an inclined plane II adjacent to the valve core, one end of each reset block, which is connected with the corresponding spring, is provided with a limit protrusion II, one end of each limit protrusion II, which is close to the limit protrusion I, is provided with sealing rubber, and the lower end of each horizontal hole is further provided with a limit horizontal plane II. By means of the sand-proof bypass valve device for the drill rod, sediment in reflux cannot enter the horizontal holes, further spring corrosion and blocking can be avoided, vertical movement is transformed into horizontal movement through the inclined planes, amount of compression of the springs can be reduced, over-compression of the spring can be prevented, the service life of the spring is prolonged and further the service life of the whole bypass valve can be improved.
Description
Technical field
The present invention relates to helicoid hydraulic motor field, particularly, relate to a kind of drilling rod sand prevention 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, causes spring failure, and high strength repeatedly compression spring easily produces metal fatigue and makes spring failure; Silt in drilling fluid when termination of pumping in well easily enters in lateral aperture, causes spring easy-to-rust easily to stop up, thereby affects the application life of spring.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of drilling rod sand prevention by-pass valve device, and the silt in the drilling fluid refluxing while overcoming because of termination of pumping enters the problem that causes spring easy-to-rust and obstruction in lateral aperture.
The present invention addresses the above problem adopted technical scheme: drilling rod sand prevention 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 top 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 end is provided with restriction protrusion I, lateral aperture inside is provided with spring, and the resetting block being connected with spring, resetting block is positioned at lateral aperture end, resetting block one end is that plane is connected with spring, the other end is that oblique II coordinates with spool, one end that resetting block is connected with spring is provided with restriction protrusion II, restriction protrusion II is provided with caulking gum near one end of restriction protrusion I, 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, restriction protrusion I is for being opened in lateral aperture near spool one end, it is that the upper and lower distance of loop configuration and this flower shape structure is narrow compared with the loop configuration of lateral aperture, restriction protrusion II is the loop configuration of resetting block in lateral aperture end, the upper and lower distance of this loop configuration is wide compared with resetting block, restriction protrusion I and restriction protrusion II are parallel to each other in the horizontal direction and are overlapping, in the time that spring is replied, restriction protrusion I and restriction protrusion II realize sealing near the caulking gum between time extruding.
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 spacing horizontal plane I contacts with spacing horizontal plane II, 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, restriction protrusion I contacts with restriction protrusion II, because sealing ring makes to connect closely between restriction protrusion I and restriction protrusion II, thereby make silt cannot enter lateral aperture internal corrosion and spring blocking,
To sum up, the invention has the beneficial effects as follows:
1, when caulking gum being set in restriction protrusion II and making termination of pumping, after spring is replied, restriction protrusion I is connected closely with restriction protrusion II, make the silt in phegma cannot enter lateral aperture corrosion spring blocking, improve the application life of spring, improved the application life of whole bypass valve.
2, 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.
3, 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; 15-restriction protrusion I; 16-restriction protrusion II.
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: the sand prevention by-pass valve device of 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, valve body lower portion is provided with outer cone nipple 14, for connecting drill collar, valve body 3 inside are provided with lateral aperture 8, lateral aperture 8 ends are provided with restriction protrusion I 15, 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, one end that resetting block 5 is connected with spring 7 is provided with restriction protrusion II 16, restriction protrusion II is provided with caulking gum near one end of restriction protrusion I, 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, restriction protrusion I 15 contacts with restriction protrusion II 16, because sealing ring makes to connect closely between restriction protrusion I 15 and restriction protrusion II 16, thereby make silt cannot enter lateral aperture 8 internal corrosions and spring blocking 7, improve the application life of spring, and will 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 top 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 sand prevention 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) end is provided with restriction protrusion I (15), lateral aperture (8) inside is provided with spring (7), and the resetting block (5) being connected with spring (7), resetting block (5) is positioned at lateral aperture (8) end, resetting block (5) one end is that plane is connected with spring (7), the other end is that oblique II (6) coordinates with spool (3), one end that resetting block (5) is connected with spring (7) is provided with restriction protrusion II (16), restriction protrusion II (16) is provided with caulking gum near one end of restriction protrusion I (15), described lateral aperture (8) lower end is also provided with spacing horizontal plane II (11).
2. drilling rod according to claim 1 sand prevention by-pass valve device, 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 according to claim 1 sand prevention by-pass valve device, 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 according to claim 3 sand prevention by-pass valve device, is characterized in that, described sieve plate II (12) is waveform foldable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410349781.5A CN104110228B (en) | 2014-07-23 | 2014-07-23 | Drilling rod sand prevention by-pass valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410349781.5A CN104110228B (en) | 2014-07-23 | 2014-07-23 | Drilling rod sand prevention by-pass valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104110228A true CN104110228A (en) | 2014-10-22 |
| CN104110228B CN104110228B (en) | 2017-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410349781.5A Expired - Fee Related CN104110228B (en) | 2014-07-23 | 2014-07-23 | Drilling rod sand prevention by-pass valve device |
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| Country | Link |
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| CN (1) | CN104110228B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915628A (en) * | 2018-09-16 | 2018-11-30 | 山东巨辉石油科技有限公司 | Underground helicoid hydraulic motor antiseize device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1469094A1 (en) * | 1987-04-06 | 1989-03-30 | Всесоюзный Научно-Исследовательский Институт Буровой Техники | Bypass valve |
| CN2240646Y (en) * | 1995-10-16 | 1996-11-20 | 曹维仁 | Liquid control obique push type stop valve |
| RU2303116C1 (en) * | 2006-10-02 | 2007-07-20 | Общество С Ограниченной Ответственностью "Вниибт-Буровой Инструмент" | All-purpose valve for downhole motor |
| CN201306150Y (en) * | 2008-11-10 | 2009-09-09 | 王富涛 | Screw drill by-pass valve |
| CN102454384A (en) * | 2010-10-31 | 2012-05-16 | 江苏省金峰石油机械制造有限公司 | Three-proofing bypass-valve for screw drill |
| CN202954736U (en) * | 2012-09-19 | 2013-05-29 | 盐城市华谊石油机械有限公司 | High-performance sand prevention screw drilling tool |
| 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 |
| CN204186324U (en) * | 2014-07-23 | 2015-03-04 | 成都高普石油工程技术有限公司 | A kind of drilling rod sand prevention bypass valve |
-
2014
- 2014-07-23 CN CN201410349781.5A patent/CN104110228B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1469094A1 (en) * | 1987-04-06 | 1989-03-30 | Всесоюзный Научно-Исследовательский Институт Буровой Техники | Bypass valve |
| CN2240646Y (en) * | 1995-10-16 | 1996-11-20 | 曹维仁 | Liquid control obique push type stop valve |
| RU2303116C1 (en) * | 2006-10-02 | 2007-07-20 | Общество С Ограниченной Ответственностью "Вниибт-Буровой Инструмент" | All-purpose valve for downhole motor |
| CN201306150Y (en) * | 2008-11-10 | 2009-09-09 | 王富涛 | Screw drill by-pass valve |
| CN102454384A (en) * | 2010-10-31 | 2012-05-16 | 江苏省金峰石油机械制造有限公司 | Three-proofing bypass-valve for screw drill |
| CN202954736U (en) * | 2012-09-19 | 2013-05-29 | 盐城市华谊石油机械有限公司 | High-performance sand prevention screw drilling tool |
| 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 |
| CN204186324U (en) * | 2014-07-23 | 2015-03-04 | 成都高普石油工程技术有限公司 | A kind of drilling rod sand prevention bypass valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915628A (en) * | 2018-09-16 | 2018-11-30 | 山东巨辉石油科技有限公司 | Underground helicoid hydraulic motor antiseize device |
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| Publication number | Publication date |
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| CN104110228B (en) | 2017-06-30 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Desheng Inventor after: Yang Fengrui Inventor after: Xie Mina Inventor before: Zhou Bin |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170605 Address after: 510000 room 8, Zhujiang circuit 1012, Guangzhou, Guangdong, Nansha District Applicant after: Yang Gengchun Address before: 610000 Chenghua District, Sichuan, Jianshe Road, No. 56, Applicant before: The Chengdu general petroleum works technology of height Co., Ltd |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170630 Termination date: 20180723 |