CN109898996A - PDC drill bit with self-excitation torsional oscillation function - Google Patents
PDC drill bit with self-excitation torsional oscillation function Download PDFInfo
- Publication number
- CN109898996A CN109898996A CN201910070265.1A CN201910070265A CN109898996A CN 109898996 A CN109898996 A CN 109898996A CN 201910070265 A CN201910070265 A CN 201910070265A CN 109898996 A CN109898996 A CN 109898996A
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- China
- Prior art keywords
- bit
- copper sheathing
- reversing switch
- jump bit
- jump
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000010355 oscillation Effects 0.000 title claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 74
- 229910052802 copper Inorganic materials 0.000 claims abstract description 74
- 239000010949 copper Substances 0.000 claims abstract description 74
- 238000005553 drilling Methods 0.000 claims abstract description 30
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 230000003116 impacting effect Effects 0.000 claims abstract description 6
- 238000013461 design Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 7
- 230000035939 shock Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of PDC drill bits with self-excitation torsional oscillation function, including bit adapter, upper end cover baffle, upper end cover, upper jump bit copper sheathing, upper reversing switch copper sheathing, impact shell, jump bit, reversing switch, lower reversing switch copper sheathing, lower jump bit copper sheathing, center tip, drill body.Drilling fluid enters inside the PDC drill bit with self-excitation torsional oscillation function from bit adapter, it is flowed out from bit port, part drilling fluid is in drill bit internal by shunting, drive reversing switch and jump bit rotation, hammer reversing switch circumferential direction collision impact into shape, the circumferential reciprocal collision impact shell of jump bit generates circumferential reciprocating impact load, by impacting the spline structure of housing forward end, the circumferential shock loading of generation is passed into drill body.PDC drill bit with self-excitation torsional oscillation function of the invention can provide additional drilling torque for drill bit, accelerate drill bit broken rock, effectively improve drilling efficiency.
Description
Technical field
The present invention relates to a kind of PDC drill bits with self-excitation torsional oscillation function for petroleum natural gas exploration, especially
It is suitable for the oil gas well drilling engineering under Novel oil gas resources supplIes.
Background technique
With the fast development of petroleum industry, shallow oil resource is increasingly depleted, and drilling engineering must not be without deep-well, super
Heavy duty service, the speed-raising of deep formation have become the critical issue for reducing exploration cost.Under normal drilling condition, work as PDC
When drill bit encounters hardpan, usually not enough torques carry out broken formation, and leading makes drill string occur stick-slip phenomenon often.Seriously
Stick-slip phenomenon, can not only damage drill string performance to making drill bit premature failure, also will affect the service life of downhole tool, give
Drilling engineering causes largely to lose.In order to solve the stick slip problems occurred in drilling process, some how effectively to disappear proposed
Except the constructive measure such as stick slip vibration effect.In correlative study, twisting vibration impact is obvious for reducing drill string stick-slip effect, and
And from the actual condition of broken rock, since the compression strength of rock is much larger than its shearing strength, rushed using twisting vibration
It hits, for improving, efficiency of breaking rock is same as rate of penetration to have important practical significance.
From the development of drilling equipment, speed-raising synergy research early period be based primarily upon spin, the modes such as lengthwise oscillations are unfolded.
Currently, research shows that twisting vibration impact has great innovative significance for broken rock synergy, by giving PDC in drilling process
Drill bit provides additional impulsive torque, and the abrasion of PDC drill bit can be effectively reduced, and improves rate of penetration.Therefore, torsion vibration is carried out
Dynamic impact research is of great significance for drilling engineering, and in order to effectively improve drilling efficiency, exploitation New Type of PDC Bit will become
Key technology equipment under Novel oil gas resources supplIes realizes the efficient of oil/gas drilling, the production of energy-saving and environmental protection type.
Summary of the invention
Drilling speed synergy described in background technology is solved in order to explore, PDC drill bit abrasion is reduced, improves power auger
Speed, the present invention provides a kind of PDC drill bits with self-excitation torsional oscillation function.PDC with self-excitation torsional oscillation function of the invention is bored
When head work, drilling fluid enters drill bit internal from bit adapter, flows out from bit port, and part drilling fluid passes through in drill bit internal
It shunts, drives reversing switch and jump bit rotation, hammer reversing switch circumferential direction collision impact into shape, the circumferentially reciprocal collision impact of jump bit
Shell generates circumferential reciprocating impact load by the mutual collision between reversing switch, jump bit and impact shell, passes through impact
The circumferential shock loading of generation is passed to drill body by the spline structure of housing forward end, applies one additionally to drill body
Impulsive torque, accelerate drill bit broken rock, improve drilling efficiency.
The technical scheme is that the PDC drill bit with self-excitation torsional oscillation function is mainly kept off by bit adapter, upper end cover
Plate, upper end cover, upper jump bit copper sheathing, upper reversing switch copper sheathing, impact shell, jump bit, reversing switch, lower reversing switch copper
Set, lower jump bit copper sheathing, center tip, drill body composition；The upper end cover baffle, upper end cover, upper jump bit copper sheathing, on
Reversing switch copper sheathing, impact shell, jump bit, reversing switch, lower reversing switch copper sheathing, lower jump bit copper sheathing, center tip position
Inside drill body, axially position is carried out by bit adapter and is locked, impact shell is installed in drill body, benefit
With spline structure realize impact shell and drill body between it is circumferentially positioned, then by center tip be installed to impact shell before
End, is installed to jump bit upper and lower ends for upper jump bit copper sheathing and lower jump bit copper sheathing respectively, then three is co-mounted to punching
Enclosure interior is hit, upper reversing switch copper sheathing and lower reversing switch copper sheathing are then installed to reversing switch upper and lower ends respectively, then
Inside three together blackout to jump bit, upper end cover is installed to design position as upper jump bit copper sheathing, upper reversing switch
Copper sheathing, the retainer for impacting shell, jump bit, reversing switch, are then installed to upper end cover back-end for upper end cover baffle, by upper
Cover baffle adjusts the installation dimension of drill body inner body, and bit adapter is finally installed to drill body rear end screw thread
Place carries out axial locking to drill body inner body.The jump bit and reversing switch produces under drilling hydraulic power drive
Raw mutually rotation, reversing switch during rotation hammer reciprocal collision impact into shape, and jump bit will periodically reciprocal collision impact
Shell will generate periodically reciprocating impact load, lead in reversing switch, jump bit and the impact mutual collision process of shell
Overbump shell is transmitted on drill body.The impact shell is provided circumferentially about to have through-hole as circulation of drilling fluid runner,
It is provided with spline on impact housing forward end inner periphery, is provided with spline on excircle, is cooperated by spline and drill body, benefit
With spline structure, the circumferential torque that jump bit and reversing switch generate is transmitted to drill body.The upper jump bit copper sheathing,
Upper reversing switch copper sheathing, lower reversing switch copper sheathing and lower jump bit copper sheathing are mounted on jump bit and reversing switch both ends, by upper
Jump bit copper sheathing, upper reversing switch copper sheathing, lower reversing switch copper sheathing and lower jump bit copper sheathing adjustment jump bit and reversing switch it
Between gap, reduce jump bit and reversing switch abrasion, improve its service life.The upper end cover and impact shell difference
2 pin holes are provided with, upper end cover and impact shell are positioned by installation pin, upper end cover is prevented and impacts shell
Fluid channel deviates position during bit operation, guarantees that drilling fluid can be according to design runner circulation.In described
Heart connector front end is provided with spline, cooperates with the spline on impact housing forward end inner periphery.
The beneficial effects of the present invention are: (1) keeps original bit exterior structure constant, rotation is set inside drill body
Collision impact component is inputted using drilling liquid pressure as power, and additional drilling torque is provided for drill bit, accelerates drill bit broken
Rock effectively improves drilling efficiency；(2) increase abrasion-proof structure setting for the rotatable parts of drill bit internal, it is lower by using hardness
Structural member, adjust rotatable parts between gap, make in the rotatable parts course of work, wear abrasion-proof structure component, reduce turn
The abrasion of dynamic component improves the service life of tool；(3) independent bit adapter is used, is different from bit adapter and drill bit
The structure design that ontology is welded together, can replace drill bit internal quick-wear part using independent bit adapter in time, improve not
The access times of vulnerable part can save production cost under the premise of guaranteeing bit operation performance；(4) drill bit internal zero
Part is positioned using spline structure or bevel structure without that can reduce the processing cost of drill bit using being threadedly coupled.
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 structural schematic diagram for impacting shell.
Fig. 4 is the structural schematic diagram of center tip.
Fig. 5 is the structural schematic diagram of upper end cover baffle.
Fig. 6 is the structural schematic diagram of upper end cover.
1. bit adapter in figure, 2. upper end cover baffles, 3. upper end covers, jump bit copper sheathing on 4., reversing switch copper sheathing on 5.,
6. shell is impacted, 7. jump bits, 8. reversing switches, 9. lower reversing switch copper sheathings, 10. lower jump bit copper sheathings, 11. center tips,
12. drill body.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
Referring to attached drawing 1, the PDC drill bit with self-excitation torsional oscillation function is mainly by bit adapter 1, upper end cover baffle 2, upper end cover
3, upper jump bit copper sheathing 4, upper reversing switch copper sheathing 5, impact shell 6, jump bit 7, reversing switch 8, lower reversing switch copper sheathing 9,
Lower jump bit copper sheathing 10, center tip 11, drill body 12 form；The upper end cover baffle 2, upper end cover 3, upper jump bit copper
Set 4, upper reversing switch copper sheathing 5, impact shell 6, jump bit 7, reversing switch 8, lower reversing switch copper sheathing 9, lower jump bit copper sheathing
10, center tip 11 is located inside drill body 12, carries out axially position by bit adapter 1 and is locked, and will impact shell 6
Be installed in drill body 12, using spline structure realize impact shell 6 and drill body 12 between it is circumferentially positioned, then will in
Heart connector 11 is installed to impact 6 front end of shell, and upper jump bit copper sheathing 4 and lower jump bit copper sheathing 10 are installed to jump bit 7 respectively
Upper and lower ends, then three is co-mounted to inside impact shell 6, then upper reversing switch copper sheathing 5 and lower commutation are opened respectively
It closes copper sheathing 9 and is installed to 8 upper and lower ends of reversing switch, then by inside three together blackout to jump bit 7, upper end cover 3 is installed to
Design position is as upper jump bit copper sheathing 4, upper reversing switch copper sheathing 5, the holding for impacting shell 6, jump bit 7, reversing switch 8
Then upper end cover baffle 2 is installed to 3 rear end of upper end cover by frame, adjust 12 inner body of drill body by upper end cover baffle 2
Bit adapter 1 is finally installed at 12 rear end screw thread of drill body by installation dimension, carries out axis to 12 inner body of drill body
To locking.
The jump bit 7 and reversing switch 8 generates mutual rotation under drilling hydraulic power drive, and reversing switch 8 is turning
Hammer reciprocal collision impact into shape 7 during dynamic, jump bit 7 will periodically reciprocal collision impact shell 6, in reversing switch 8, impact
In hammer 7 and the impact mutual collision process of shell 6, periodically reciprocating impact load will be generated, is transmitted to brill by impacting shell 6
On head ontology 12.
The impact shell 6 is provided circumferentially about to have through-hole as circulation of drilling fluid runner, impacts 6 front end inner periphery of shell
On be provided with spline, be provided with spline on excircle, cooperated by spline and drill body 12, using spline structure, will be rushed
The circumferential torque that hammer 7 and reversing switch 8 generate is transmitted to drill body.
Upper jump bit copper sheathing 4, upper reversing switch copper sheathing 5, lower reversing switch copper sheathing 9 and lower jump bit copper sheathing 10 peace
Mounted in 8 both ends of jump bit 7 and reversing switch, pass through upper jump bit copper sheathing 4, upper reversing switch copper sheathing 5, lower reversing switch copper sheathing 9
And lower jump bit copper sheathing 10 adjusts the gap between jump bit 7 and reversing switch 8, reduces the mill of jump bit 7 and reversing switch 8
Damage, improves its service life.
The upper end cover 3 and impact shell 6 is respectively arranged with 2 pin holes, by installation pin to upper end cover 3 and punching
It hits shell 6 to be positioned, prevents upper end cover 3 and the fluid channel of impact shell 6 from deviating position during bit operation,
Guarantee that drilling fluid can be according to design runner circulation.
11 front end of center tip is provided with spline, cooperates with the spline on impact 6 front end inner periphery of shell.
Claims (6)
1. the PDC drill bit with self-excitation torsional oscillation function, it is characterised in that: the PDC drill bit master with self-excitation torsional oscillation function
It will be by bit adapter (1), upper end cover baffle (2), upper end cover (3), upper jump bit copper sheathing (4), upper reversing switch copper sheathing (5), punching
Hit shell (6), jump bit (7), reversing switch (8), lower reversing switch copper sheathing (9), lower jump bit copper sheathing (10), center tip
(11), drill body (12) forms；The upper end cover baffle (2), upper end cover (3), upper jump bit copper sheathing (4), upper commutation are opened
Close copper sheathing (5), impact shell (6), jump bit (7), reversing switch (8), lower reversing switch copper sheathing (9), lower jump bit copper sheathing
(10), center tip (11) is located at drill body (12) inside, carries out axially position by bit adapter (1) and is locked, will
Impact shell (6) is installed in drill body (12), is realized between impact shell (6) and drill body (12) using spline structure
It is circumferentially positioned, then by center tip (11) be installed to impact shell (6) front end, respectively by upper jump bit copper sheathing (4) and undershoot
Hammer copper sheathing (10) is installed to jump bit (7) upper and lower ends, then three is co-mounted to impact shell (6) inside, then divides
Upper reversing switch copper sheathing (5) and lower reversing switch copper sheathing (9) reversing switch (8) upper and lower ends are not installed to, then by three one
It is internal to jump bit (7) to play blackout, upper end cover (3) is installed to design position as upper jump bit copper sheathing (4), upper reversing switch
Copper sheathing (5), impact shell (6), jump bit (7), reversing switch (8) retainer, then upper end cover baffle (2) is installed to
End cap (3) rear end is adjusted the installation dimension of drill body (12) inner body by upper end cover baffle (2), finally connects drill bit
Head (1) is installed at the screw thread of drill body (12) rear end, carries out axial locking to drill body (12) inner body.
2. the PDC drill bit according to claim 1 with self-excitation torsional oscillation function, it is characterised in that: the jump bit (7)
Generating mutually rotation, reversing switch (8) under drilling hydraulic power drive with reversing switch (8) will back and forth collide during rotation
Jump bit (7), jump bit (7) will periodically reciprocal collision impact shell (6), in reversing switch (8), jump bit (7) and punching
It hits in shell (6) mutually collision process, periodically reciprocating impact load will be generated, be transmitted to drill bit by impacting shell (6)
On ontology (12).
3. the PDC drill bit according to claim 1 with self-excitation torsional oscillation function, it is characterised in that: the impact shell
(6) provided circumferentially about to have through-hole as circulation of drilling fluid runner, it impacts on the inner periphery of shell (6) front end and is provided with spline, outside
It is provided circumferentially about to have spline, cooperated by spline and drill body (12), using spline structure, jump bit (7) and commutation are opened
It closes the circumferential torque that (8) generate and is transmitted to drill body.
4. the PDC drill bit according to claim 1 with self-excitation torsional oscillation function, it is characterised in that: the upper jump bit
Copper sheathing (4), upper reversing switch copper sheathing (5), lower reversing switch copper sheathing (9) and lower jump bit copper sheathing (10) are mounted on jump bit (7)
With reversing switch (8) both ends, by upper jump bit copper sheathing (4), upper reversing switch copper sheathing (5), lower reversing switch copper sheathing (9) and under
Jump bit copper sheathing (10) adjusts the gap between jump bit (7) and reversing switch (8), reduces jump bit (7) and reversing switch (8)
Abrasion, improve its service life.
5. the PDC drill bit according to claim 1 with self-excitation torsional oscillation function, it is characterised in that: the upper end cover (3)
2 pin holes are respectively arranged with impact shell (6), upper end cover (3) and impact shell (6) are determined by installation pin
Position prevents upper end cover (3) and the fluid channel of impact shell (6) from deviating position during bit operation, guarantees drilling well
Liquid can be according to design runner circulation.
6. the PDC drill bit according to claim 1 with self-excitation torsional oscillation function, it is characterised in that: the center tip
(11) front end is provided with spline, cooperates with the spline on impact shell (6) front end inner periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070265.1A CN109898996B (en) | 2019-01-24 | 2019-01-24 | PDC drill bit with self-excitation torsional vibration function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070265.1A CN109898996B (en) | 2019-01-24 | 2019-01-24 | PDC drill bit with self-excitation torsional vibration function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109898996A true CN109898996A (en) | 2019-06-18 |
| CN109898996B CN109898996B (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910070265.1A Active CN109898996B (en) | 2019-01-24 | 2019-01-24 | PDC drill bit with self-excitation torsional vibration function |
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| Country | Link |
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| CN (1) | CN109898996B (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 |
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|---|---|---|---|---|
| CN104533283A (en) * | 2014-12-26 | 2015-04-22 | 长江大学 | Hydraulic circumferential torque impact generator |
| CN104563862A (en) * | 2014-12-17 | 2015-04-29 | 中国石油大学(北京) | Composite impact well drilling tool |
| US20150292271A1 (en) * | 2011-04-18 | 2015-10-15 | Smith International, Inc. | High diamond frame strength pcd materials |
| CN106837181A (en) * | 2017-03-16 | 2017-06-13 | 天津市高原瑞丰工贸有限公司 | A kind of drilling well knob drill hammer |
| US20180171720A1 (en) * | 2016-12-21 | 2018-06-21 | Center Rock Inc. | Down-the-hole drill hammer having a roller bearing assembly |
| CN207609378U (en) * | 2017-11-16 | 2018-07-13 | 深圳市艾能石油科技有限公司 | A kind of oil gas drilling efficient rock-breaking composite impact drill bit |
-
2019
- 2019-01-24 CN CN201910070265.1A patent/CN109898996B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150292271A1 (en) * | 2011-04-18 | 2015-10-15 | Smith International, Inc. | High diamond frame strength pcd materials |
| CN104563862A (en) * | 2014-12-17 | 2015-04-29 | 中国石油大学(北京) | Composite impact well drilling tool |
| CN104533283A (en) * | 2014-12-26 | 2015-04-22 | 长江大学 | Hydraulic circumferential torque impact generator |
| US20180171720A1 (en) * | 2016-12-21 | 2018-06-21 | Center Rock Inc. | Down-the-hole drill hammer having a roller bearing assembly |
| CN106837181A (en) * | 2017-03-16 | 2017-06-13 | 天津市高原瑞丰工贸有限公司 | A kind of drilling well knob drill hammer |
| CN207609378U (en) * | 2017-11-16 | 2018-07-13 | 深圳市艾能石油科技有限公司 | A kind of oil gas drilling efficient rock-breaking composite impact drill bit |
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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| Publication number | Publication date |
|---|---|
| CN109898996B (en) | 2020-08-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201028 Address after: 618000 No. 30, two West Ring Road, Tianyuan Town, Jingyang District, Deyang, Sichuan Patentee after: Sichuan Bao Wright drill Co.,Ltd. Address before: No. 8 Road, Xindu Xindu District of Chengdu city of Sichuan Province in 610000 Patentee before: SOUTHWEST PETROLEUM University |
|
| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: PDC drill bits with self-excited torsional vibration function Granted publication date: 20200825 Pledgee: The Great Wall West Bank Bank of China Deyang hi tech branch Pledgor: Sichuan Bao Wright drill Co.,Ltd. Registration number: Y2024980021330 |