CN110454083B - Drill bit with circumferential rotary impact force - Google Patents
Drill bit with circumferential rotary impact force Download PDFInfo
- Publication number
- CN110454083B CN110454083B CN201910773641.3A CN201910773641A CN110454083B CN 110454083 B CN110454083 B CN 110454083B CN 201910773641 A CN201910773641 A CN 201910773641A CN 110454083 B CN110454083 B CN 110454083B
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- impact
- drill bit
- circumferential
- assembly
- disc
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- 239000007788 liquid Substances 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 210000000078 claw Anatomy 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 12
- 239000011435 rock Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000009987 spinning Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 4
- 238000009527 percussion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a drill bit with circumferential spinning force, which comprises a drill bit body and a drill bit seat assembly, wherein the drill bit seat assembly is connected between a drill rod and the drill bit body and is used for generating the circumferential spinning force; the drill bit seat assembly sequentially comprises a rear connecting pipe, a middle pipe body and a front connecting pipe which are fixedly connected from back to front, and an impact assembly in circumferential transmission fit with the front connecting pipe and a power assembly in driving fit with the impact assembly are sequentially arranged in the middle pipe body from front to back; the power assembly is a hydraulic power assembly; the drilling fluid flows through the stator to drive the rotor to drive the rear valve disc to rotate at a high speed, the impact holes in the rear valve disc and the liquid distribution holes in the front disc upper valve are periodically aligned and staggered to generate axial pressure pulses which indirectly act on the drill bit body to enable the drill bit to be in contact with the bottom of the well all the time to protect the drill bit, the circumferential impact force indirectly acts on the drill bit body through the lower connector, the drill bit body and the bottom of the well are enabled to keep continuous high-frequency cutting all the time, the phenomena of stick slip and drill sticking of the drill bit are eliminated, and the rock breaking efficiency is improved.
Description
Technical Field
The invention relates to the field of drilling, in particular to a drill bit with circumferential rotary impulse force.
Background
In recent years, high-frequency impact deep well drilling speed-up tools are developed at a high speed, rock in deep stratum of an oil field is hard and has high grinding extreme value, conventional roller bits are used for drilling, a single bit has few drilling rules, multiple tripping operations are required, and the mechanical drilling speed is low; when the screw is applied to composite drilling, the screw has short service life and unsatisfactory use effect due to higher temperature in a deep well; in addition, the mechanical drilling speed can be greatly improved by adopting the gas drilling technology, but the complex condition under the well is easily caused under the condition that water is produced from the stratum, and the gas drilling supporting equipment is more and the cost is relatively higher.
Disclosure of Invention
In view of the above, the present invention is directed to overcome the defects in the prior art, and provides a drill bit with circumferential rotary percussion force, wherein the rotary percussion drill bit has a reasonable design and reliable performance, generates circumferential vibration, eliminates the phenomena of stick-slip and drill sticking of the drill bit, and increases the mechanical drilling speed.
The drill bit with the circumferential rotary impact force comprises a drill bit body and a drill bit seat assembly, wherein the drill bit seat assembly is connected between a drill rod and the drill bit body and is used for generating the circumferential rotary impact force; the drill bit seat assembly sequentially comprises a rear connecting pipe, a middle pipe body and a front connecting pipe which are fixedly connected from back to front, and an impact assembly in circumferential transmission fit with the front connecting pipe and a power assembly in driving fit with the impact assembly are sequentially arranged in the middle pipe body from front to back; the power assembly is a hydraulic power assembly.
Furthermore, a disc valve assembly is arranged between the power assembly and the impact assembly, the disc valve assembly comprises a front valve disc fixedly arranged on the middle pipe body and a rear valve disc rotatably sleeved in the middle pipe body, the rear valve disc is in circumferential transmission fit with the output end of the power assembly, the rear valve disc is provided with an impact hole, and the front valve disc is provided with a distributing hole periodically corresponding to the impact hole; the middle of the rear valve disc is fixedly provided with a guide rod, the impact assembly comprises a driven disc fixed at the tail end of the front connecting pipe, an impact sleeve sleeved on the front section of the guide rod in a sliding mode, a driving spiral sheet sleeved on the impact sleeve in a fixed mode, and an impact claw fixed on the driving sleeve, the driven disc is provided with an arc-shaped hole along the circumferential direction, the front section of the impact claw stretches into the arc-shaped hole and impacts the driven disc circumferentially when power liquid impacts the driving spiral sheet, and the impact sleeve is provided with a return force along the axial direction and the circumferential direction.
Further, the driven plate is provided with a plurality of arc-shaped holes along the circumferential direction, and the impact claw is provided with a plurality of impact fingers corresponding to the arc-shaped holes.
Furthermore, a reset torsion spring sleeved outside the guide rod is arranged between the impact sleeve and the driven disc.
Further, a composite bearing used for providing circumferential and axial rolling supporting force is arranged between the impact sleeve and the guide rod.
Further, the composite bearing comprises an impact sleeve, a ball and a ring-shaped retainer; the circle is sunken to form the annular positioning groove that is used for axial positioning installation holder in the impact cover, the axial both ends of annular positioning groove tank bottom are sunken respectively and are formed two annular guide ways, the axial is provided with the backward flow guiding hole of two annular guide ways of intercommunication in the impact cover, sets up along the axial in the middle of the holder and is used for the spacing mouth of bar to the ball, backward flow guiding hole and the spacing mouth of bar set up to a plurality ofly along circumference, the ball is a plurality ofly and fills in annular guide way, backward flow guiding hole and the spacing mouth of bar.
Further, the power assembly comprises a stator sleeve fixedly sleeved on the middle pipe body and a rotor rotatably sleeved in the stator sleeve, blades are arranged on the outer circle of the rotor, a radial liquid inlet corresponding to the blades is formed in the radial opening of the outer circle of the stator sleeve, and the rotor is fixedly connected with the rear valve disc in the circumferential direction.
Furthermore, integrated into one piece is provided with the connector in the middle of the back valve disc, the rear end of connector is in rotor front end threaded connection, the guide bar rear end extends and extends back valve disc and relative rotation inserts in the connector.
The invention has the beneficial effects that: the invention discloses a drill bit with circumferential rotary impact force, wherein drilling fluid flows through a stator to drive a rotor to drive a rear valve disc to rotate at a high speed, impact holes on the rear valve disc and liquid distribution holes of a valve on a front disc are periodically aligned and staggered to generate axial pressure pulses which indirectly act on a drill bit body to form a liquid spring, so that the drill bit is always contacted with a well bottom to protect the drill bit, and circumferential impact force indirectly acts on the drill bit body through a lower connector, so that the drill bit body and the well bottom always keep continuous high-frequency cutting, the phenomena of stick-slip and drill sticking of the drill bit are eliminated, and the rock breaking efficiency is improved.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the front valve disc of the present invention;
FIG. 3 is a schematic structural view of a driven disk according to the present invention;
fig. 4 is a schematic structural view of the composite bearing of the present invention.
Detailed Description
Fig. 1 is a schematic structural diagram of the present invention, fig. 2 is a schematic structural diagram of a front valve disc of the present invention, fig. 3 is a schematic structural diagram of a driven disc of the present invention, and fig. 4 is a schematic structural diagram of a composite bearing of the present invention, wherein, as shown in the drawings, a drill bit with circumferential rotary impact force in the present embodiment comprises a drill bit body and a drill bit seat assembly connected between a drill rod and the drill bit body and used for generating circumferential rotary impact force; the drill bit seat assembly sequentially comprises a rear connecting pipe 1, a middle pipe body 2 and a front connecting pipe 3 which are fixedly connected from back to front, and an impact assembly in circumferential transmission fit with the front connecting pipe and a power assembly in driving fit with the impact assembly are sequentially arranged in the middle pipe body from front to back; the power assembly is a hydraulic power assembly; a disc valve assembly is further arranged between the power assembly and the impact assembly, the disc valve assembly comprises a front valve disc 4 fixedly arranged on the middle pipe body and a rear valve disc 5 rotatably sleeved in the middle pipe body, the rear valve disc is in circumferential transmission fit with the output end of the power assembly, the rear valve disc is provided with an impact hole 6, and the front valve disc is provided with a distributing hole 7 periodically corresponding to the impact hole; a guide rod 8 is fixedly arranged in the middle of the rear valve disc, the impact assembly comprises a driven disc 9 fixed at the tail end of the front connecting pipe, an impact sleeve 10 sleeved on the front section of the guide rod in a sliding manner, a driving spiral sheet 11 fixedly sleeved on the impact sleeve and an impact claw 12 fixed on the driving sleeve, the driven disc is provided with an arc-shaped hole 13 along the circumferential direction, the front section of the impact claw extends into the arc-shaped hole and impacts the driven disc circumferentially when power liquid impacts the driving spiral sheet, and the impact sleeve is provided with a return force along the axial direction and the circumferential direction; the driven disc is provided with a plurality of arc-shaped holes along the circumferential direction, and the impact claw is provided with a plurality of impact fingers corresponding to the arc-shaped holes; a reset torsion spring 14 sleeved outside the guide rod is arranged between the impact sleeve and the driven disc; as shown in the figure, the power liquid drives the power assembly to rotate so as to drive the rear valve disc to rotate, so that the impact hole and the matching hole are periodically and rightly conducted, the impact hole can be an arc-shaped strip hole, the power liquid further impacts the driving spiral sheet in the circumferential direction so that the impact sleeve slides in the axial direction while rotating, the impact claw is driven to impact the driven disc in the circumferential direction, so that circumferential and axial impact force is applied to the drill bit body arranged on the front connecting pipe, and when the reset torsion spring is used for staggering the impact hole and the liquid distribution hole, the impact sleeve is reset in the circumferential direction and the axial direction through the reset torsion spring so as to prepare for next impact; and two ends of the reset torsion spring are respectively fixed on the impact sleeve and the driven disc.
In the embodiment, a composite bearing for providing circumferential and axial rolling supporting force is arranged between the impact sleeve and the guide rod; the composite bearing comprises an impact sleeve, a ball 15 and a ring-shaped retainer 16; the inner circle of the impact sleeve is sunken to form an annular positioning groove for axially positioning and mounting the retainer, two axial ends of the bottom of the annular positioning groove are respectively sunken to form two annular guide grooves 16a, backflow guide holes communicated with the two annular guide grooves are axially formed in the impact sleeve, a strip-shaped limiting port for limiting balls is axially formed in the middle of the retainer, a plurality of backflow guide holes and a plurality of strip-shaped limiting ports are circumferentially arranged, and the plurality of balls are filled in the annular guide grooves, the backflow guide holes and the strip-shaped limiting ports; the ball that is located bar spacing intraoral supports along radial inwards and presses in the excircle of guide bar, does benefit to and strikes cover and guide bar and along rotation in a circumferential direction and endwise slip, does benefit to and improves and strikes cover motion stability and wear resistance.
In the embodiment, the power assembly comprises a stator sleeve 17 fixedly sleeved in the middle pipe body and a rotor 18 rotatably sleeved in the stator sleeve, blades 19 are arranged on the excircle of the rotor, a radial liquid inlet 20 corresponding to the blades is arranged on the excircle radial opening of the stator sleeve, and the rotor is fixedly connected with the circumferential direction of the rear valve disc; the radial liquid inlet drives the rotor to rotate, so that the rotor is favorable for avoiding axial friction, and the mechanical driving efficiency is improved.
In the embodiment, the middle of the rear valve disc is integrally provided with a connector 21, the rear end of the connector is in threaded connection with the front end of the rotor, and the rear end of the guide rod extends through the rear valve disc and is inserted into the connector in a relatively rotating manner; the coaxiality of all parts is further improved, and the stability of the transmission mechanism is ensured.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (5)
1. A drill bit with circumferential rotary impulse force is characterized in that: the drill bit comprises a drill bit body and a drill bit seat assembly which is connected between a drill rod and the drill bit body and used for generating circumferential rotary impact force; the drill bit seat assembly sequentially comprises a rear connecting pipe, a middle pipe body and a front connecting pipe which are fixedly connected from back to front, and an impact assembly in circumferential transmission fit with the front connecting pipe and a power assembly in driving fit with the impact assembly are sequentially arranged in the middle pipe body from front to back; the power assembly is a hydraulic power assembly; a disc valve assembly is further arranged between the power assembly and the impact assembly, the disc valve assembly comprises a front valve disc fixedly arranged on the middle pipe body and a rear valve disc rotatably sleeved in the middle pipe body, the rear valve disc is in circumferential transmission fit with the output end of the power assembly, the rear valve disc is provided with an impact hole, and the front valve disc is provided with a distributing hole periodically corresponding to the impact hole; the middle of the rear valve disc is fixedly provided with a guide rod, the impact assembly comprises a driven disc fixed at the tail end of the front connecting pipe, an impact sleeve sleeved outside the front section of the guide rod in a sliding manner, a driving spiral sheet fixedly sleeved outside the impact sleeve and an impact claw fixed on the impact sleeve, the driven disc is provided with an arc-shaped hole along the circumferential direction, the front section of the impact claw extends into the arc-shaped hole and impacts the driven disc circumferentially when power liquid impacts the driving spiral sheet, and the impact sleeve is provided with a return force along the axial direction and the circumferential direction;
a composite bearing for providing circumferential and axial rolling supporting force is arranged between the impact sleeve and the guide rod; the composite bearing comprises an impact sleeve, a ball and a ring-shaped retainer; the circle is sunken to form the annular positioning groove that is used for axial positioning installation holder in the impact cover, the axial both ends of annular positioning groove tank bottom are sunken respectively and are formed two annular guide ways, the axial is provided with the backward flow guiding hole of two annular guide ways of intercommunication in the impact cover, sets up along the axial in the middle of the holder and is used for the spacing mouth of bar to the ball, backward flow guiding hole and the spacing mouth of bar set up to a plurality ofly along circumference, the ball is a plurality ofly and fills in annular guide way, backward flow guiding hole and the spacing mouth of bar.
2. The drill bit with circumferential momentum of claim 1, wherein: the driven plate is provided with a plurality of arc-shaped holes along the circumferential direction, and the impact claw is provided with a plurality of impact fingers corresponding to the arc-shaped holes.
3. The drill bit with circumferential momentum of claim 2, wherein: and a reset torsion spring sleeved outside the guide rod is arranged between the impact sleeve and the driven disc.
4. The drill bit with circumferential momentum of claim 3, wherein: the power assembly comprises a stator sleeve fixedly sleeved on the middle pipe body and a rotor rotatably sleeved in the stator sleeve, blades are arranged on the outer circle of the rotor, a radial liquid inlet corresponding to the blades is formed in the radial opening of the outer circle of the stator sleeve, and the rotor is fixedly connected with the rear valve disc in the circumferential direction.
5. The drill bit with circumferential momentum of claim 4, wherein: the middle of the rear valve disc is integrally provided with a connector, the rear end of the connector is in threaded connection with the front end of the rotor, and the rear end of the guide rod extends through the rear valve disc and is inserted into the connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910773641.3A CN110454083B (en) | 2019-08-21 | 2019-08-21 | Drill bit with circumferential rotary impact force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910773641.3A CN110454083B (en) | 2019-08-21 | 2019-08-21 | Drill bit with circumferential rotary impact force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110454083A CN110454083A (en) | 2019-11-15 |
| CN110454083B true CN110454083B (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910773641.3A Active CN110454083B (en) | 2019-08-21 | 2019-08-21 | Drill bit with circumferential rotary impact force |
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| Country | Link |
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| CN (1) | CN110454083B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5156223A (en) * | 1989-06-16 | 1992-10-20 | Hipp James E | Fluid operated vibratory jar with rotating bit |
| DE69704024T2 (en) * | 1996-08-23 | 2001-05-23 | Brooks H. Javins | DEVICE FOR ROTATING AND IMPACT DRILLING AND METHOD THEREFOR |
| CN101688553A (en) * | 2007-06-28 | 2010-03-31 | Ntn株式会社 | Rocking bearing outer ring, rocking bearing, air disc brake device, fitting structure for rocking bearing outer ring |
| CN204457422U (en) * | 2014-12-17 | 2015-07-08 | 中国石油大学(北京) | composite impact drilling tool |
| CN105041201A (en) * | 2015-07-09 | 2015-11-11 | 西南石油大学 | Hydraulic gentle vibration speed acceleration drill tool |
| CN207436916U (en) * | 2017-11-07 | 2018-06-01 | 西南石油大学 | Screw double acting speed-raising instrument |
| CN108708672A (en) * | 2016-07-14 | 2018-10-26 | 乌鲁木齐九品芝麻信息科技有限公司 | A kind of circumferential direction axial vacuum impact speed-raising tool |
-
2019
- 2019-08-21 CN CN201910773641.3A patent/CN110454083B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5156223A (en) * | 1989-06-16 | 1992-10-20 | Hipp James E | Fluid operated vibratory jar with rotating bit |
| DE69704024T2 (en) * | 1996-08-23 | 2001-05-23 | Brooks H. Javins | DEVICE FOR ROTATING AND IMPACT DRILLING AND METHOD THEREFOR |
| CN101688553A (en) * | 2007-06-28 | 2010-03-31 | Ntn株式会社 | Rocking bearing outer ring, rocking bearing, air disc brake device, fitting structure for rocking bearing outer ring |
| CN204457422U (en) * | 2014-12-17 | 2015-07-08 | 中国石油大学(北京) | composite impact drilling tool |
| CN105041201A (en) * | 2015-07-09 | 2015-11-11 | 西南石油大学 | Hydraulic gentle vibration speed acceleration drill tool |
| CN108708672A (en) * | 2016-07-14 | 2018-10-26 | 乌鲁木齐九品芝麻信息科技有限公司 | A kind of circumferential direction axial vacuum impact speed-raising tool |
| CN207436916U (en) * | 2017-11-07 | 2018-06-01 | 西南石油大学 | Screw double acting speed-raising instrument |
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| Publication number | Publication date |
|---|---|
| CN110454083A (en) | 2019-11-15 |
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