CN203559795U - Diversion joint for drilling fluid - Google Patents
Diversion joint for drilling fluid Download PDFInfo
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- CN203559795U CN203559795U CN201320681861.1U CN201320681861U CN203559795U CN 203559795 U CN203559795 U CN 203559795U CN 201320681861 U CN201320681861 U CN 201320681861U CN 203559795 U CN203559795 U CN 203559795U
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- drilling fluid
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Abstract
The utility model provides a diversion joint for drilling fluid. The diversion joint comprises a check ring lift shoulder, nozzles,a spring, a through hole, a tubular body, an annular seal groove, a nozzle channel, a nozzle axis, a bushing, a longitudinal axis, a check valve, an axial plane, a spiral groove, a nozzle outlet and a conical recess, wherein the longitudinal axis is provided with the through hole, and the tubular body is provided with three nozzles along the circumference evenly; the nozzles, through the axial plane on the longitudinal axis, intersect the axial plane at the outlet of the nozzles; the check valve, which can be inserted into the upper part of the through hole, is biased in a valve seat of the bushing through the spring, the bushing is arranged on the check ring lift shoulder at the upper part of the through hole; the outer surface of the diversion joint for drilling fluid is provided with a bump or the conical recess, and the nozzle outlet is provided with the spiral groove. The diversion joint not only can remove drilling cuttings better and improve the cleaning efficiency of the drill hole, but also can prevent a mud bag of the drill from blocking the drill nozzles, thereby preventing a drill stem from clamping or slipping, and a motor is enabled to drive the drill to rotate at a higher speed to improve the rate of rock breaking.
Description
Technical field
The utility model relates to oil drilling apparatus field, relates in particular to a kind of drilling fluid tap.
Background technology
At present, extended reach well in oil and gas prospect development process, particularly the most well sections of horizontal well are to adopt MTR to drive the slip of bit to creep into mode, in slip drilling process, drilling cuttings is not easy to remove, well cleaning efficiency is low, during especially such as unconventional drilling-in jobs such as shale gas, drill bit is easily by mud drum plug nozzle, thereby rate of penetration is reduced greatly, in order to improve well cleaning efficiency, change bit nozzle diameter, nozzle spray direction and arrangement of nozzles are carried out hydraulic parameters optimization, but still the effect that can not realize ideal, this just needs badly and a kind ofly can prevent that bit balling from stopping up bit nozzle, can improve well cleaning efficiency again, improve the shunting device of rate of penetration.
Summary of the invention
In order to overcome the above problems, the utility model provides a kind of drilling fluid tap, it is simple in structure, not only can better remove drilling cuttings, improve the cleaning efficiency of well, but also can prevent that bit balling from stopping up bit nozzle, avoid drill string card sliding, extend the motor bearing life-span, make motor drive bit with higher speed, improve broken rock rate.
The technical solution of the utility model is: a kind of drilling fluid tap is provided, and it is by back-up ring half the circumference of the sleeve where it joins the shoulder, nozzle, spring, through hole, tubular body, ring seal groove, nozzle passage, nozzle-axis, lining, longitudinal axis, flap valve, axial plane, helicla flute, jet expansion and circular cone dimple form, described longitudinal axis arranges through hole, along tubular body even circumferential, be provided with three nozzles, nozzle-axis direction is inclined upwardly 45 °, by the axial plane on longitudinal axis, also by the export center of nozzle, nozzle-axis is not positioned at axial plane, but intersect at exit and the axial plane of nozzle, between nozzle-axis and axial plane, there is certain differential seat angle, see from the top down, when joint turns clockwise, nozzle-axis lags behind axial plane clockwise, a flap valve can be inserted in the top of through hole, flap valve is biased in the valve seat of lining by spring, lining is placed on the back-up ring half the circumference of the sleeve where it joins the shoulder on through hole top, the external surface of drilling fluid tap is provided with projection or circular cone dimple, on jet expansion, be provided with helicla flute, the size of helical angle can change, the outer end of nozzle is provided with circular cone dimple, ring seal groove is installed on nozzle passage,
The acclivitous angle of described nozzle-axis direction can change;
The differential seat angle existing between described nozzle-axis and axial plane can be identical, or completely different, or wherein only have two identical;
The height of described nozzle can be identical, or completely different, or wherein only have two identical, the diameter on through hole top than and the slightly larger in diameter of the core that intersects of nozzle.
Compared with prior art, the beneficial effects of the utility model are: can improve the cleaning efficiency of well, but also can prevent that bit balling from stopping up bit nozzle, improves rate of penetration.
Accompanying drawing explanation
Further the utility model is illustrated with reference to the accompanying drawings below
Accompanying drawing 1 is structure chart of the present utility model;
Accompanying drawing 2 is structure charts of the present utility model;
Accompanying drawing 3 is structure charts of the present utility model
Accompanying drawing 4 is nozzle arrangements figure of the present utility model
Accompanying drawing 5 is nozzle arrangements figure of the present utility model
Accompanying drawing 6 is structure charts of the present utility model
Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6: 1, back-up ring half the circumference of the sleeve where it joins the shoulder, 2, nozzle, 3, spring, 4, through hole, 5, tubular body, 6, ring seal groove, 7, nozzle passage, 8, nozzle-axis, 9, lining, 10, longitudinal axis, 11, flap valve, 12, axial plane, 13, helicla flute, 14, jet expansion, 15, circular cone dimple.
The specific embodiment
According to the specific embodiment and accompanying drawing, further the utility model is illustrated below:
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Fig. 6, a kind of drilling fluid tap, it is by back-up ring half the circumference of the sleeve where it joins the shoulder 1, nozzle 2, spring 3, through hole 4, tubular body 5, ring seal groove 6, nozzle passage 7, nozzle-axis 8, lining 9, longitudinal axis 10, flap valve 11, axial plane 12, helicla flute 13, jet expansion 14 and circular cone dimple 15 form, longitudinal axis 10 arranges through hole 4, along tubular body 5 even circumferentials, be provided with three nozzles 2, nozzle-axis 8 directions are inclined upwardly 45 °, by the axial plane 12 on longitudinal axis 10, also by the export center of nozzle 2, nozzle-axis 8 is not positioned at axial plane 12, but intersect at exit and the axial plane 12 of nozzle 2, between nozzle-axis 8 and axial plane 12, there is certain differential seat angle, see from the top down, when joint turns clockwise, nozzle-axis 8 lags behind axial plane 12 clockwise, a flap valve 11 can be inserted in the top of through hole 4, flap valve 11 is biased in the valve seat of lining 9 by spring 3, lining 9 is placed on the back-up ring half the circumference of the sleeve where it joins the shoulder 1 on through hole 4 tops, the external surface of drilling fluid tap is provided with projection or circular cone dimple 15, on jet expansion 14, be provided with helicla flute 13, the size of helical angle can change, the outer end of nozzle 2 is provided with circular cone dimple 15, ring seal groove 6 is installed on nozzle passage 7, the acclivitous angle of nozzle-axis 8 direction can change, the differential seat angle existing between nozzle-axis 8 and axial plane 12 can be identical, or completely different, or wherein only have two identical, the height of nozzle 2 can be identical, or completely different, or wherein only have two identical, the slightly larger in diameter of the core that diameter ratio and the nozzle 2 on through hole 4 tops intersects.
When reality is used, when drill string enters well, flap valve 11 can stop mud and drilling cuttings upwards to enter MTR parts damages, the external surface of drilling fluid tap is provided with projection or circular cone dimple 18, can enhanced flow through the turbulence effect of drilling fluid, on jet expansion 17, be provided with helicla flute 16, the size of helical angle can change, can make the drilling fluid of nozzle 2 ejections produce whirlpool, back-up ring half the circumference of the sleeve where it joins the shoulder 1 can be installed snap ring and block nozzle 2.
In construction, drilling fluid tap is connected between motor and drill bit, if want to test motor before drill string enters well, can use plug to replace nozzle 2, after testing, re-use nozzle 2 for lower end cap, can be according to the shunt ratio of expection, select the nozzle 2 of different-diameter, compare with the total area of crossing of bit nozzle, tap total points flow nozzle area of passage should be quite little, generally, tap total points flow nozzle area of passage should be only the 10-20% of the total area of passage of bit nozzle, after installing nozzle 2, by drill string down to shaft bottom, and turn on pump circulating fluid, rotatable drill string drives bit, also rotary drill column not, and rely on the bit that rotarily drives of motor, nozzle 2 ejections of fraction drilling fluid tap in drilling process, with flow through drill bit carry drilling cuttings along most of drilling fluid mixed of annular space Upward Migration, produce turbulence effect, thereby better remove drilling cuttings, improve well cleaning efficiency, but also can prevent that bit balling from stopping up bit nozzle, avoid the sliding phenomenon of drill string card, extend the motor bearing life-span, make motor drive bit with higher speed, improve efficiency of breaking rock, and realization improves the object of rate of penetration.
The above is embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All any modifications of doing within spirit of the present utility model and principle, be equal within replacement, improvement etc. all should be contained in claim scope of the present utility model.
Claims (5)
1. a drilling fluid tap, it is by back-up ring half the circumference of the sleeve where it joins the shoulder (1), nozzle (2), spring (3), through hole (4), tubular body (5), ring seal groove (6), nozzle passage (7), nozzle-axis (8), lining (9), longitudinal axis (10), flap valve (11), axial plane (12), helicla flute (13), jet expansion (14) and circular cone dimple (15) form, it is characterized in that: longitudinal axis (10) arranges through hole (4), along tubular body (5) even circumferential, be provided with three nozzles (2), nozzle-axis (8) direction is inclined upwardly 45 °, by the axial plane (12) on longitudinal axis (10), also by the export center of nozzle (2), nozzle-axis (8) is not positioned at axial plane (12), but intersect at exit and the axial plane (12) of nozzle (2), between nozzle-axis (8) and axial plane (12), there is certain differential seat angle, see from the top down, nozzle-axis when joint turns clockwise (8) lags behind axial plane (12) clockwise, a flap valve (11) can be inserted in the top of through hole (4), flap valve (11) is biased in the valve seat of lining (9) by spring (3), lining (9) is placed on the back-up ring half the circumference of the sleeve where it joins the shoulder (1) on through hole (4) top, the external surface of drilling fluid tap is provided with projection or circular cone dimple (15), on jet expansion (14), be provided with helicla flute (13), the size of helical angle can change, the outer end of nozzle (2) is provided with circular cone dimple (15), ring seal groove (6) is installed on nozzle passage (7).
2. drilling fluid tap according to claim 1, is characterized in that: the acclivitous angle of nozzle-axis (8) direction can change.
3. drilling fluid tap according to claim 1, is characterized in that: the differential seat angle existing between nozzle-axis (8) and axial plane (12) can be identical, or completely different, or wherein only have two identical.
4. drilling fluid tap according to claim 1, is characterized in that: the height of nozzle (2) can be identical, or completely different, or wherein only have two identical.
5. drilling fluid tap according to claim 1, is characterized in that: the diameter on through hole (4) top than and the slightly larger in diameter of the core that intersects of nozzle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320681861.1U CN203559795U (en) | 2013-11-01 | 2013-11-01 | Diversion joint for drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320681861.1U CN203559795U (en) | 2013-11-01 | 2013-11-01 | Diversion joint for drilling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559795U true CN203559795U (en) | 2014-04-23 |
Family
ID=50509523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320681861.1U Expired - Fee Related CN203559795U (en) | 2013-11-01 | 2013-11-01 | Diversion joint for drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559795U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298406A (en) * | 2015-09-24 | 2016-02-03 | 西南石油大学 | Well drilling vortex nipple |
| CN105804669A (en) * | 2016-05-24 | 2016-07-27 | 成都迪普金刚石钻头有限责任公司 | Pulse type drilling connector |
| CN107387929A (en) * | 2017-07-31 | 2017-11-24 | 江苏中超环保股份有限公司 | A kind of device of simple increase flow velocity |
| CN113580369A (en) * | 2021-08-26 | 2021-11-02 | 江西鑫通机械制造有限公司 | Mixing device and concrete wet spraying machine using same |
-
2013
- 2013-11-01 CN CN201320681861.1U patent/CN203559795U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298406A (en) * | 2015-09-24 | 2016-02-03 | 西南石油大学 | Well drilling vortex nipple |
| CN105804669A (en) * | 2016-05-24 | 2016-07-27 | 成都迪普金刚石钻头有限责任公司 | Pulse type drilling connector |
| CN107387929A (en) * | 2017-07-31 | 2017-11-24 | 江苏中超环保股份有限公司 | A kind of device of simple increase flow velocity |
| CN113580369A (en) * | 2021-08-26 | 2021-11-02 | 江西鑫通机械制造有限公司 | Mixing device and concrete wet spraying machine using same |
| CN113580369B (en) * | 2021-08-26 | 2023-10-20 | 江西鑫通机械制造有限公司 | Mixing device and concrete wet spraying machine using same |
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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: 20140423 Termination date: 20161101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |