CN204186324U - A kind of drilling rod sand prevention bypass valve - Google Patents
A kind of drilling rod sand prevention bypass valve Download PDFInfo
- Publication number
- CN204186324U CN204186324U CN201420405563.4U CN201420405563U CN204186324U CN 204186324 U CN204186324 U CN 204186324U CN 201420405563 U CN201420405563 U CN 201420405563U CN 204186324 U CN204186324 U CN 204186324U
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- China
- Prior art keywords
- spring
- plane
- valve body
- spool
- lateral aperture
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Abstract
The utility model relates to a kind of drilling rod sand prevention bypass valve, comprise valve body and spool, valve body lower portion is provided with outer cone nipple, inside is provided with through hole, through hole top is provided with female cone nipple, the one side that spool is adjacent with valve body is inclined-plane I, its lower end is provided with spacing plane I, valve inner is provided with lateral aperture, lateral aperture end is provided with restriction protrusion I, lateral aperture inside is provided with spring and resetting block, resetting block is positioned at lateral aperture end, one end be connected with spring one end be oblique II with spool close, one end of linking springs is provided with restriction protrusion II, restriction protrusion II has caulking gum near one end of restriction protrusion I, lateral aperture lower end is also provided with spacing horizontal plane II.
Description
Technical field
The utility model relates to helicoid hydraulic motor field, particularly, relates to a kind of drilling rod sand prevention bypass valve.
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 bypass valve, motor, universal drive shaft and power transmission shaft respectively.Existing bypass valve is the accessory of helicoid hydraulic motor, be arranged on helicoid hydraulic motor in upper end, first its effect is connect drill collar and centralizer sub, it is two when to be that drilling fluid is with pressure when turn on pump flow through bypass valve inner via hole, motion is downward vertically until close voluntarily for bypass valve core, and drilling fluid is used for the work of drive screw drilling tool and circulation; Make bypass valve inner via hole space be communicated with annular space when termination of pumping, be the space of the drill string surrounding be 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 bit change time drill string in drilling fluid overflow.
Existing bypass valve operating principle: during work, valve cuts out, and pump is opened, and drilling fluid forces spool to move downward, Compress Spring, and spool blocks the hole on valve body, and annular space is led in this hole, makes drilling fluid dirty.When quitting work, valve is opened, and pump cuts out, and owing to not having the pressure of drilling fluid, under the action of the spring, spool moves upward, and makes the hole on valve body be communicated with drilling rod inner space and annular space.The hole that valve body has also is provided with filter, for filtering foreign matter.
The shortcoming of existing bypass valve is: when drilling liquid pressure is excessive, and spring is overly compressed, and exceeds its spring limit, causes spring failure, and high strength Compress Spring repeatedly easily produces metal fatigue makes spring failure; Silt in drilling fluid during termination of pumping in well easily enters in lateral aperture, causes spring easy-to-rust easily to block, thus affects the application life of spring.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of drilling rod sand prevention bypass valve, and the silt overcome in the drilling fluid because refluxing during termination of pumping enters the problem causing spring easy-to-rust and blocking in lateral aperture.
The technical scheme in the invention for solving the above technical problem is: a kind of drilling rod sand prevention bypass valve, 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 is adjacent with valve body is inclined-plane I, lower end, inclined-plane I 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 to be 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 oblique II to coordinate 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.
Outer cone nipple is namely at the threaded connector that valve body lower end outer circumference surface contact ring vacancy is offered, for connecting drill collar, the threaded connector that female cone nipple and valve body upper end inner peripheral surface contact interior bone place offer, for jointed rod, inclined-plane I is small top and big bottom annular section, this tangent plane is equivalent to the long short isosceles trapezoid of going to the bottom of upper base and rotates around central axis and form, 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 around central axis and form, inclined-plane I and inclined-plane II are parallel to each other, spacing plane I is for being opened in the horizontal annular tangent plane of spool outer wall, spacing Planar Mechanism is the horizontal annular tangent plane being opened in valve interior wall, spacing plane I and spacing Planar Mechanism is parallel to each other and vertical direction has lap, lateral aperture is annular horizontal hole and through hole is pointed in perforate, spring is inserted in annular horizontal hole, again annular resetting block is installed on spring, annular resetting block offers inclined-plane II, restriction protrusion I is for being opened in lateral aperture near spool one end, it is loop configuration and the upper and lower distance of this flower shape structure is narrow compared with the loop configuration of lateral aperture, restriction protrusion II is in the loop configuration of lateral aperture end for resetting block, 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 and overlapping in the horizontal direction, when spring-return, restriction protrusion I and restriction protrusion II near time extruding between caulking gum realize sealing.
Further, sieve plate I is provided with in through hole between female cone nipple and spool, containing partial impurities in drilling fluid, impurities accumulation at most can through hole in valve body or by-pass prot, affect the circulation of bypass valve entirety, required drilling fluid need remove impurity rear and can enter in through hole, and drilling fluid is less through sieve plate I filtered impurities, can reduce and affect the blocking of bypass valve.
Further, valve body periphery is also provided with the by-pass prot be communicated with through hole, sieve plate II is provided with in by-pass prot, be connected with through hole in by-pass prot, be connected with annular space outward, arranging on the one hand when termination of pumping of sieve plate II, drilling liquid flow filters drilling fluid again to during annular space, impurity is avoided to enter in drilling well, in the through hole preventing the impurity in annular space from entering in bypass valve on the other hand.
Further, sieve plate II is set to waveform foldable structure, adds contact area during filtration, makes filtration more abundant, reduces impurity content further.
When turn on pump, when injecting drilling fluid in valve body inner via hole, drilling fluid starts squeezing through-hole inwall and produces pressure, due to the effect spool vertical downward movement of pressure, when spool move downward inclined-plane I to contact with inclined-plane II and to start to extrude time, resetting block starts to apply a horizontal applied force to spring, spool continues to move downward, resetting block starts slowly extrusion spring, in spring makes resetting block be headed into by spool in valve body lateral aperture because the extruding being subject to resetting block starts to shrink, until spacing horizontal plane I contacts with spacing horizontal plane II, when closing pump, in through hole, pressure reduces, spring starts to recover deformation and produces restoring force, under the effect of spring-return power, spool upwards pushes up by resetting block 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, thus make silt cannot enter lateral aperture internal corrosion and spring blocking,
To sum up, the beneficial effects of the utility model are:
1, by arranging caulking gum make termination of pumping in restriction protrusion II time, after spring-return, restriction protrusion I is connected with restriction protrusion II closely, make the silt in phegma cannot enter lateral aperture corrosion spring blocking, improve the application life of spring, namely improve the application life of whole bypass valve.
2, this structure will be moved both vertically by inclined-plane and be converted into horizontal movement, the decrement of the spring reduced, thus prevent spring to be overly compressed, spacing plane I and spacing Planar Mechanism limit the distance moved both vertically, spring is prevented to be overly compressed further, the application life of spring is improved, thus improves the application life of 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, reduces the probability of bypass valve through hole blocking, the impurity content in simultaneously also less drilling well, not only increase the application life of whole bypass valve, decrease the impurity content of material to be mined.
Accompanying drawing explanation
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, to the detailed description further of the utility model do, but embodiment of the present utility model is not limited thereto.
Embodiment 1: a kind of drilling rod sand prevention bypass valve as shown in Figure 1, comprise valve body 3 and spool 9, it is inner that spool 9 is positioned at valve body 3, the one side that spool 9 is adjacent with valve body 3 is inclined-plane I 4, lower end, inclined-plane I 4 is 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 is provided with lateral aperture 8, lateral aperture 8 end is provided with restriction protrusion I 15, the resetting block 5 that lateral aperture 8 inside is provided with spring 7 and is 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 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 end on valve body 3 is also provided with spacing horizontal plane II 11, as shown in Figure 2, Fig. 2 is the structural representation of resetting structure, when turn on pump, drilling fluid is injected in the through hole of valve body 3 inside, liquid starts squeezing through-hole inwall and produces pressure, this pressure acts on spool 9 and makes spool 9 vertical downward movement, when spool 9 move downward inclined-plane I 4 to contact with inclined-plane II 6 and to start to extrude time, 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, in spring 7 makes resetting block 5 be headed into by spool 9 in valve body 3 lateral aperture 8 because the extruding being subject to resetting block 5 starts to shrink, until spacing horizontal plane I 10 contacts with spacing horizontal plane II 11, spool 9 stoppings move downward, spring 7 also stops compression, spool 9, resetting block 5 and spring 7 reach a kind of and balance, when closing pump, because the pressure in through hole reduces, spring 7 starts to recover deformation, produce a kind of reply restoring force, under the effect of spring 7 restoring force, 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, thus make silt cannot enter lateral aperture 8 internal corrosion and spring blocking 7, improve the application life of spring, and will be moved both vertically by inclined-plane and be converted into horizontal movement, the decrement of the spring 7 reduced, thus prevent spring 7 to be overly compressed, spacing plane I 10 and spacing Planar Mechanism 11 limit the distance moved both vertically, spring 7 is prevented to be overly compressed further, the application life of spring 7 is improved, thus improves the application life of whole bypass valve, valve body 3 inside is also provided with through hole, and through hole top is provided with female cone nipple 1, for jointed rod.
Sieve plate I 2 is provided with in through hole between female cone nipple 1 and spool 9, containing partial impurities in drilling fluid, impurities accumulation at most can through hole in valve body 3 or by-pass prot 13, affect the circulation of bypass valve entirety, required drilling fluid need remove impurity rear and can enter in through hole, and drilling fluid is less through sieve plate I 2 filtered impurities, can reduces and the blocking of bypass valve is affected.
Valve body 3 periphery is also provided with the by-pass prot 13 be communicated with through hole, sieve plate II 12 is provided with in by-pass prot 13, sieve plate II 12 be designed to waveform foldable structure, This structure increases contact area during filtration, make filtration more abundant, be connected with through hole in by-pass prot 13, be connected with annular space outward, arranging on the one hand when termination of pumping of sieve plate II 12, drilling liquid flow filters drilling fluid again to during annular space, impurity is avoided to enter in drilling well, in the through hole preventing the impurity in annular space from entering in bypass valve on the other hand.
As mentioned above, the utility model can be realized preferably.
Claims (4)
1. a drilling rod sand prevention bypass valve, 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), lower end, inclined-plane I (4) 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) to be 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 oblique II (6) to coordinate 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. a kind of drilling rod sand prevention bypass valve according to claim 1, is characterized in that, is provided with sieve plate I (2) in the through hole between described female cone nipple (1) and spool (9).
3. a kind of drilling rod sand prevention bypass valve according to claim 1, is characterized in that, described valve body (3) periphery is also provided with the by-pass prot (13) be communicated with through hole, is provided with sieve plate II (12) in by-pass prot.
4. a kind of drilling rod sand prevention bypass valve 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 |
|---|---|---|---|
| CN201420405563.4U CN204186324U (en) | 2014-07-23 | 2014-07-23 | A kind of drilling rod sand prevention bypass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420405563.4U CN204186324U (en) | 2014-07-23 | 2014-07-23 | A kind of drilling rod sand prevention bypass valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186324U true CN204186324U (en) | 2015-03-04 |
Family
ID=52618334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420405563.4U Expired - Fee Related CN204186324U (en) | 2014-07-23 | 2014-07-23 | A kind of drilling rod sand prevention bypass valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186324U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110228A (en) * | 2014-07-23 | 2014-10-22 | 成都高普石油工程技术有限公司 | Sand-proof bypass valve device for drill rod |
| CN106894788A (en) * | 2017-03-16 | 2017-06-27 | 中国石油天然气集团公司 | Deepwater drilling drill pipe valve |
-
2014
- 2014-07-23 CN CN201420405563.4U patent/CN204186324U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110228A (en) * | 2014-07-23 | 2014-10-22 | 成都高普石油工程技术有限公司 | Sand-proof bypass valve device for drill rod |
| CN104110228B (en) * | 2014-07-23 | 2017-06-30 | 杨耿纯 | Drilling rod sand prevention by-pass valve device |
| CN106894788A (en) * | 2017-03-16 | 2017-06-27 | 中国石油天然气集团公司 | Deepwater drilling drill pipe valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150304 Termination date: 20150723 |
|
| EXPY | Termination of patent right or utility model |