CN109915029A - The PDC drill bit of multidirectional coupling fluidic oscillation - Google Patents
The PDC drill bit of multidirectional coupling fluidic oscillation Download PDFInfo
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- CN109915029A CN109915029A CN201910329312.XA CN201910329312A CN109915029A CN 109915029 A CN109915029 A CN 109915029A CN 201910329312 A CN201910329312 A CN 201910329312A CN 109915029 A CN109915029 A CN 109915029A
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- coupling
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Abstract
The invention discloses a kind of PDC drill bits of multidirectional coupling fluidic oscillation, including bit adapter, coupling jet stream pipe nipple, bit body, pin, jet inlet, control runner, beeline channel, right return flow line, right fluidic channel, left return flow line, left fluidic channel, oscillation chamber, jet exit.Drilling fluid is inside the PDC drill bit of the multidirectional coupling fluidic oscillation of bit adapter, it is flowed out after overcoupling jet stream pipe nipple from bit port, when drilling fluid is through overcoupling jet stream pipe nipple, due to the special construction design of coupling jet stream pipe nipple, changed using drilling liquid pressure, the pressure oscillation of circumferential and radial direction will be formed, by coupling jet stream pipe nipple effect, multidirectional fluidic oscillation is generated, is acted on drill bit, drill bit efficiency of breaking rock is improved, realizes the speed-raising synergy of drilling engineering.PDC drill bit with self-excitation torsional oscillation function of the invention realizes multidirectional fluidic oscillation using drilling liquid pressure, improves the safety, reliable of the efficiency of breaking rock general structure design of drill bit.
Description
Technical field
The present invention relates to a kind of PDC drill bits of multidirectional coupling fluidic oscillation for oil gas well drilling engineering, especially suitable
For the exploitation of unconventional petroleum resources, it is equally applicable to the fields such as mine, geology.
Background technique
Important link of the drilling engineering as Oil And Gas Exploration And Development, be the key that petroleum resources efficiently, security development,
Drilling efficiency how is improved, the popular research direction that drilling cost is always petroleum gas field is saved.And drill bit is as brill
The essential key technology equipment of well engineering, directly and rock contact, function admirable directly determine whether drilling engineering is high
Effect, economy.Currently, conventional oil and gas resource exploration exploitation comes into the stage of ripeness, the preferable petroleum of shallow-layer occurrence condition is natural
Also with the progress of exploitation, reserves constantly reduce gas, and natural petroleum gas field gradually makes the transition to unconventional petroleum resources, such as page
Rock gas, coal bed gas etc., casing programme also becomes increasingly complex, including deep-well, ultradeep well, extended reach directional well etc., ground environment
It is further severe, it has any different than more typical in the high-temperature geothermal well on traditional stratum.Drilling engineering facing challenges gradually increase, right
The development of bit technique also proposed new requirement.
Conventional bit technique have evolved into ripe, traditional PDC drill bit mainly by bit body, cutting tooth, nozzle,
The composition such as gage surface and connector, structure also changes according to actual working conditions, but does not still have too big difference in structure
It is different.In drilling process, in order to improve rate of penetration, increase the efficiency of breaking rock of drill bit, is usually added and raises speed in nearly bit location
Tool assists drill bit broken rock.With reference to conventional drill assembly mode, new reference is provided for drill bit structure design, raise speed work
Tool plus drill bit composition new drilling tool become the developing direction of modern drilling technology equipment, but this design generally requires that tool is matched
Special drill bit is covered, the popularization and application of drill bit or tool are limited, keeps new drilling tool development progress slow.In order to promote the modern times
The development of drilling technology equipment, it should attempt new drill bit design method, under the premise of guaranteeing drill bit reliability, have drill bit
Standby new function, to meet the exploration and development of modern petroleum resources.
Summary of the invention
In order to explore the speed-raising synergy for solving drilling engineering described in background technology, existing bit technique is broken through, is developed
Drill bit with new function, the present invention provides a kind of PDC drill bits of multidirectional coupling fluidic oscillation.Multidirectional coupling of the invention is penetrated
When the PDC drill bit work of stream oscillation, drilling fluid enters inside bit body from bit adapter, from drill bit after overcoupling jet stream pipe nipple
Hydrophthalmia outflow, due to the special construction design of coupling jet stream pipe nipple, utilizes drilling fluid when drilling fluid is through overcoupling jet stream pipe nipple
Pressure change will form the pressure oscillation of circumferential and radial direction, by coupling jet stream pipe nipple effect, generate multidirectional jet stream vibration
It swings, acts on drill bit, improve drill bit efficiency of breaking rock, realize the speed-raising synergy of drilling engineering.
The technical solution of the present invention is as follows: the PDC drill bit of multidirectional coupling fluidic oscillation is mainly short by bit adapter, coupling jet stream
Section, bit body, pin, jet inlet, control runner, beeline channel, right return flow line, right fluidic channel, left return flow line, a left side
Pin is installed in bit body in fluidic channel, oscillation chamber, jet exit composition, the coupling jet stream pipe nipple and pin position
Into bit body, then bit adapter is installed, it is circumferentially positioned to coupling jet stream pipe nipple progress by pin effect, finally utilize drill bit
Connector carries out axially position to coupling jet stream pipe nipple；The jet inlet, control runner, beeline channel, right return flow line, the right side
Fluidic channel, left return flow line, left fluidic channel, oscillation chamber, jet exit are arranged on the excircle of coupling jet stream pipe nipple, penetrate
Inflow entrance, control runner, beeline channel, right return flow line, right fluidic channel, left return flow line, left fluidic channel, oscillation chamber,
Jet exit collectively constitutes the fluid circulation channel of coupling jet stream pipe nipple.
The beeline channel front end is linear type, and rear end has certain diffusion angle, guarantees fluid from jet inlet
Stable incident flow is capable of forming after into fluid circulation channel；Right fluidic channel, left fluidic channel and oscillation chamber are tangent, guarantee stream
Body can tangentially enter oscillation chamber, formation rule eddy flow after right fluidic channel, left fluidic channel；Right return flow line and a left side are returned
Circulation road parallelly distribute on, and right return flow line, left return flow line and oscillation chamber are tangent, guarantee that reflux fluid can steadily enter
Right return flow line and left return flow line；Control runner is circular flow channel, is guaranteed from right return flow line and the outflow of left return flow line
Reflux fluid can complete circulation in control runner.
Using being threadedly coupled between the bit adapter and bit body, after bit adapter is installed to bit body, then adopt
Bit adapter and bit body are fixed together completely with the mode of welding, sanding and polishing finally is carried out to weld seam, guarantees drill bit
The finish of external circumference.
The jet inlet is located at coupling jet stream pipe nipple rear end, and jet exit is located at coupling jet stream pipe nipple front end, jet stream
The quantity of entrance and jet exit is 4, is evenly distributed on coupling jet stream pipe nipple circumference in 90 °.
The pin quantity is 4, in 90 ° of distributions.
The beneficial effects of the present invention are: (1) setting coupling fluidic oscillation pipe nipple inside bit body, utilizes drilling liquid pressure
It realizes multidirectional fluidic oscillation, the function that drill bit has is increased under the premise of guaranteeing drill bit basic function, drill bit can be improved
Efficiency of breaking rock；(2) it is recycled in special flow passage using drilling fluid, generates fluidic oscillation, do not need other power sources, have drill bit
Standby multidirectional coupling fluidic oscillation function, in turn ensures that drill bit structure will not be too complicated；(3) coupling jet stream pipe nipple is fixed on bit body
Interior, during the work time, oscillation action acts directly on bit body, vibrates without being transmitted by intermediate structure, guarantees
The safety and reliability of drill bit general structure design；(4) use multidirectional coupled structure, coupling jet stream pipe nipple axial dimension compared with
It is small, it is closer to green bit size with conventional PDC drill bit, will not propose new demand to hole assembly design.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is exterior contour figure of the invention.
Fig. 3 is the Section A-A figure in Fig. 2 of the present invention.
Fig. 4 is the structural schematic diagram for impacting shell.
Fig. 5 is the structural schematic diagram of center tip.
Fig. 6 is the structural schematic diagram of upper end cover baffle.
Fig. 7 is the structural schematic diagram of upper end cover.
1. bit adapter in figure, 2. coupling jet stream pipe nipples, 3. bit bodys, 4. pins, 5. jet inlets, 6. control runners,
7. beeline channel, 8. right return flow lines, 9. right fluidic channels, 10. left return flow lines, 11. left fluidic channels, 12. oscillation chambers,
13. jet exit.
Specific embodiment
Carry out detailed description of the present invention illustrative embodiments with reference to the drawings.It should be appreciated that shown in attached drawing and
The embodiment of description is only exemplary, it is intended that is illustrated the principle and spirit of the invention, and is not limited model of the invention
It encloses.
Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this hair
Bright principle, it should be understood that protection scope of the present invention is not limited to such specific embodiments and embodiments.This field
Those of ordinary skill disclosed the technical disclosures can make according to the present invention and various not depart from the other each of essence of the invention
The specific variations and combinations of kind, these variations and combinations are still within the scope of the present invention.
Referring to attached drawing, the PDC drill bit of multidirectional coupling fluidic oscillation is mainly by bit adapter 1, coupling jet stream pipe nipple 2, drill bit
Body 3, pin 4, jet inlet 5, control runner 6, beeline channel 7, right return flow line 8, right fluidic channel 9, left return flow line 10,
Left fluidic channel 11, oscillation chamber 12, jet exit 13 form, in the coupling jet stream pipe nipple 2 and pin 4 and bit body 3,
Pin 4 is installed in bit body 3, then bit adapter 1 is installed, it is circumferential fixed to be carried out by the effect of pin 4 to coupling jet stream pipe nipple 2
Position finally carries out axially position using 1 pair of coupling jet stream pipe nipple 2 of bit adapter；It is the jet inlet 5, control runner 6, straight
Line passage 7, right return flow line 8, right fluidic channel 9, left return flow line 10, left fluidic channel 11, oscillation chamber 12, jet exit 13
It is arranged on the excircle of coupling jet stream pipe nipple 2, jet inlet 5, control runner 6, beeline channel 7, right return flow line 8, the right side are penetrated
Circulation road 9, left return flow line 10, left fluidic channel 11, oscillation chamber 12, jet exit 13 collectively constitute coupling jet stream pipe nipple 2
Fluid circulation channel.
7 front end of beeline channel is linear type, and rear end has certain diffusion angle, guarantees fluid from jet inlet
Stable incident flow is capable of forming after 5 entrance fluid circulation channels；Right fluidic channel 9, left fluidic channel 11 and oscillation chamber 12 are tangent,
Guarantee that fluid can tangentially enter oscillation chamber 12, formation rule eddy flow after right fluidic channel 9, left fluidic channel 11；The right side is returned
Circulation road 8 and left 10 parallelly distribute on of return flow line, and right return flow line 8, left return flow line 10 and oscillation chamber 12 are tangent, guarantee
Reflux fluid can steadily enter right return flow line 8 and left return flow line 10；Control runner 6 is circular flow channel, guarantees to return from the right side
Circulation road 8 and the reflux fluid of left return flow line 10 outflow can be completed to recycle in control runner 6.
Using threaded connection between the bit adapter 1 and bit body 3, after bit adapter 1 is installed to bit body 3,
Bit adapter 1 and bit body 3 are fixed together by the way of welding completely again, sanding and polishing finally is carried out to weld seam, is protected
Demonstrate,prove the finish of bit body excircle.
The jet inlet 5 is located at coupling 2 rear end of jet stream pipe nipple, and jet exit 13 is located at coupling 2 front end of jet stream pipe nipple,
The quantity of jet inlet 5 and jet exit 13 is 4, is evenly distributed on coupling 2 circumference of jet stream pipe nipple in 90 °；The pin
Following closely 4 quantity is 4, in 90 ° of distributions.
Claims (5)
1. the PDC drill bit of multidirectional coupling fluidic oscillation, it is characterised in that: the PDC drill bit master of the multidirectional coupling fluidic oscillation
It will be by bit adapter (1), coupling jet stream pipe nipple (2), bit body (3), pin (4), jet inlet (5), control runner (6), straight
Line passage (7), right return flow line (8), right fluidic channel (9), left return flow line (10), left fluidic channel (11), oscillation chamber
(12), jet exit (13) forms, in the coupling jet stream pipe nipple (2) and pin (4) position and bit body (3), by pin (4)
It is installed in bit body (3), then bit adapter (1) is installed, coupling jet stream pipe nipple (2) is carried out by pin (4) effect circumferential
Positioning finally carries out axially position to coupling jet stream pipe nipple (2) using bit adapter (1)；The jet inlet (5), control
Runner (6), beeline channel (7), right return flow line (8), right fluidic channel (9), left return flow line (10), left fluidic channel
(11), chamber (12), jet exit (13) setting are vibrated on the excircle of coupling jet stream pipe nipple (2), jet inlet (5), control
Runner (6), beeline channel (7), right return flow line (8), right fluidic channel (9), left return flow line (10), left fluidic channel
(11), chamber (12) are vibrated, jet exit (13) collectively constitutes the fluid circulation channel for coupling jet stream pipe nipple (2).
2. the PDC drill bit of multidirectional coupling fluidic oscillation according to claim 1, it is characterised in that: the beeline channel
(7) front end is linear type, and rear end has certain diffusion angle, guarantees that fluid enters fluid circulation channel from jet inlet (5)
After be capable of forming stable incident flow；Right fluidic channel (9), left fluidic channel (11) and oscillation chamber (12) are tangent, guarantee fluid warp
Oscillation chamber (12), formation rule eddy flow can tangentially be entered after crossing right fluidic channel (9), left fluidic channel (11)；Right reflux is logical
Road (8) and left return flow line (10) parallelly distribute on, and right return flow line (8), left return flow line (10) and oscillation chamber (12) phase
It cuts, guarantees that reflux fluid can steadily enter right return flow line (8) and left return flow line (10)；Controlling runner (6) is round stream
Road guarantees to complete to follow in control runner (6) from the reflux fluid that right return flow line (8) are flowed out with left return flow line (10)
Ring.
3. the PDC drill bit of multidirectional coupling fluidic oscillation according to claim 1, it is characterised in that: the bit adapter
(1) after bit adapter (1) is installed to bit body (3), then the side of welding is used using being threadedly coupled between bit body (3)
Bit adapter (1) and bit body (3) are fixed together by formula completely, finally carry out sanding and polishing to weld seam, guarantee outside bit body
The finish of circumference.
4. the PDC drill bit of multidirectional coupling fluidic oscillation according to claim 1, it is characterised in that: the jet inlet
(5) be located at coupling jet stream pipe nipple (2) rear end, jet exit (13) be located at coupling jet stream pipe nipple (2) front end, jet inlet (5) and
The quantity of jet exit (13) is 4, is evenly distributed on coupling jet stream pipe nipple (2) circumference in 90 °.
5. the PDC drill bit of multidirectional coupling fluidic oscillation according to claim 1, it is characterised in that: pin (4) number
Amount is 4, in 90 ° of distributions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329312.XA CN109915029A (en) | 2019-04-23 | 2019-04-23 | The PDC drill bit of multidirectional coupling fluidic oscillation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329312.XA CN109915029A (en) | 2019-04-23 | 2019-04-23 | The PDC drill bit of multidirectional coupling fluidic oscillation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109915029A true CN109915029A (en) | 2019-06-21 |
Family
ID=66978264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910329312.XA Pending CN109915029A (en) | 2019-04-23 | 2019-04-23 | The PDC drill bit of multidirectional coupling fluidic oscillation |
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| Country | Link |
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| CN (1) | CN109915029A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617012A (en) * | 2019-10-21 | 2019-12-27 | 沧州格锐特钻头有限公司 | PDC drill bit with rotary oscillation impact function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988369A (en) * | 2010-09-15 | 2011-03-23 | 中国石油大学(北京) | Pressure-reducing and speed-accelerating drill flow channel structure and drill |
| CN205297350U (en) * | 2015-12-29 | 2016-06-08 | 江苏勇龙电气有限公司 | From booster -type PDC drill bit |
| CN106368609A (en) * | 2016-11-09 | 2017-02-01 | 西南石油大学 | Jet flow oscillating tool |
| CN106481273A (en) * | 2016-11-09 | 2017-03-08 | 西南石油大学 | Fluidic oscillation realizes the drilling tool of axial impact |
| CN106555551A (en) * | 2016-11-11 | 2017-04-05 | 西南石油大学 | The agitator of vortex-induced vibration is realized using turbine and cellular flow passages |
| CN106930688A (en) * | 2017-03-09 | 2017-07-07 | 长江大学 | A kind of eddy current type waterpower pulse axial impact instrument |
| CN207583317U (en) * | 2017-12-19 | 2018-07-06 | 中南大学 | Eddy current type oscillating jet pressure pulse friction reducer |
-
2019
- 2019-04-23 CN CN201910329312.XA patent/CN109915029A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988369A (en) * | 2010-09-15 | 2011-03-23 | 中国石油大学(北京) | Pressure-reducing and speed-accelerating drill flow channel structure and drill |
| CN205297350U (en) * | 2015-12-29 | 2016-06-08 | 江苏勇龙电气有限公司 | From booster -type PDC drill bit |
| CN106368609A (en) * | 2016-11-09 | 2017-02-01 | 西南石油大学 | Jet flow oscillating tool |
| CN106481273A (en) * | 2016-11-09 | 2017-03-08 | 西南石油大学 | Fluidic oscillation realizes the drilling tool of axial impact |
| CN106555551A (en) * | 2016-11-11 | 2017-04-05 | 西南石油大学 | The agitator of vortex-induced vibration is realized using turbine and cellular flow passages |
| CN106930688A (en) * | 2017-03-09 | 2017-07-07 | 长江大学 | A kind of eddy current type waterpower pulse axial impact instrument |
| CN207583317U (en) * | 2017-12-19 | 2018-07-06 | 中南大学 | Eddy current type oscillating jet pressure pulse friction reducer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617012A (en) * | 2019-10-21 | 2019-12-27 | 沧州格锐特钻头有限公司 | PDC drill bit with rotary oscillation impact function |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190621 |
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| RJ01 | Rejection of invention patent application after publication |