CN109931000A - Regulatable fluidic oscillation PDC drill bit - Google Patents
Regulatable fluidic oscillation PDC drill bit Download PDFInfo
- Publication number
- CN109931000A CN109931000A CN201910328668.1A CN201910328668A CN109931000A CN 109931000 A CN109931000 A CN 109931000A CN 201910328668 A CN201910328668 A CN 201910328668A CN 109931000 A CN109931000 A CN 109931000A
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- China
- Prior art keywords
- piston
- pipe nipple
- jet stream
- drill bit
- stream pipe
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- 230000010355 oscillation Effects 0.000 title claims abstract description 27
- 210000002445 nipple Anatomy 0.000 claims abstract description 52
- 238000005553 drilling Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of regulatable fluidic oscillation PDC drill bits, are mainly made of anchor tip, drill body, rectangular seal, pre-compressed spring, unlatching piston, jet stream pipe nipple, positioning pin.Drilling fluid enters regulatable fluidic oscillation PDC drill bit from anchor tip, enter drill bit bottom by opening piston centre runner, it is flowed out from bit port, when drilling liquid pressure increases, pre-compressed spring is compressed, and opens piston downlink, piston is opened to be connected to the circular hole of jet stream pipe nipple, drilling fluid enters jet stream pipe nipple, generates fluidic oscillation effect, acts on drill bit；When drilling liquid pressure reduces, pre-compressed spring resets, and piston moves up, and returns to initial position, opens piston and is not connected to the circular hole of jet stream pipe nipple, and PDC drill bit does not have fluidic oscillation function, realizes fluidic oscillation control by adjusting drilling liquid pressure.The adjusting control of fluidic oscillation function may be implemented in regulatable fluidic oscillation PDC drill bit of the invention, improves drill bit efficiency of breaking rock by adjusting drilling liquid pressure.
Description
Technical field
The present invention relates to a kind of regulatable fluidic oscillation PDC drill bits for petroleum natural gas exploration, are also suitable
In the technical equipment such as mining, geological drilling, architectural engineering, Tunnel Engineering and no-dig technique field.
Background technique
Currently, petrol resources exploitation is gradually to deep-well, ultra-deep with the continuous exploration and development of conventional oil natural gas resource
The development of well field, with the increase of drilling depth, rock can be under the action of the confining pressure of stratum, and intensity and hardness can all have significantly
Increase, keeps drillability of rock extreme value relatively high, cause rate of penetration slack-off, increase drilling time, so as to cause drilling cost
Increase.This puts forward new requirements the service life and efficiency of breaking rock of the PDC drill bit under Novel oil gas resources supplIes, and PDC is bored
Head will appear often in normal work due to the interference by external factor and deviate showing for wellbore center and double swerve
As and its profile periphery efficiency of breaking rock is higher, and centre is due to often arranging relatively small number of PDC cutting tooth, center
Efficiency of breaking rock is lower.
For the efficiency of breaking rock for improving PDC drill bit, rate of penetration is improved, reduces drilling cost, PDC drill bit new construction is carried out and sets
Meter becomes the urgent need of oil gas well drilling engineering.Conventional PDC drill bit design is generally by optimizing cloth tooth scheme, improving drill bit
The design of body structure, the structure optimization for changing the methods of PDC cutting teeth size progress PDC drill bit, to reach newly wanting for service performance
It asks.But with the exploration and development of Novel oil gas resource, to PDC drill bit, more stringent requirements are proposed, therefore breaks through existing drill bit knot
Structure design scheme is the inevitable choice for improving bit performance, especially by the structure member of drill bit is increased, to meet PDC brill
The functional requirement of head.
Summary of the invention
The efficiency of breaking rock described in background technology for improving PDC drill bit is solved in order to explore, rate of penetration is improved, reduces and bore
Well cost, the present invention provides a kind of regulatable fluidic oscillation PDC drill bits.Regulatable fluidic oscillation PDC of the invention is bored
When head work, after drilling fluid enters anchor tip, enter drill bit bottom by opening piston centre runner, from bit port stream
Out, when drilling liquid pressure increases, pre-compressed spring is further compressed under drilling liquid pressure effect, opens piston to moving down
It is dynamic, it is connected to unlatching piston with the circular hole of jet stream pipe nipple, drilling fluid enters jet stream pipe nipple, switches in jet stream short-joint internal-circulation, produces
Raw fluidic oscillation effect, acts on drill bit, improves drill bit efficiency of breaking rock；When drilling liquid pressure reduces, pre-compressed spring resets,
Piston moves up, and returns to initial position, opens piston and is not connected to the circular hole of jet stream pipe nipple, follows in jet stream pipe nipple without fluid
Ring, PDC drill bit do not have fluidic oscillation function, realize that the fluidic oscillation of PDC drill bit controls by adjusting drilling liquid pressure.
The technical scheme is that regulatable fluidic oscillation PDC drill bit is mainly by anchor tip, drill body, square
Shape sealing ring, pre-compressed spring open piston, jet stream pipe nipple, positioning pin composition, the rectangular seal, pre-compressed spring, unlatching
Piston, jet stream pipe nipple, positioning pin are located inside drill body, and positioning pin is installed on drill body inner periphery first, then pacifies
Jet stream pipe nipple is filled, is not generated and is circumferentially rotated by the position assurance jet stream pipe nipple of positioning pin, be then installed to out pre-compressed spring
It opens on piston, rectangular seal is installed on opening piston rear end excircle, then be installed to piston is opened on jet stream pipe nipple, and
Keep pre-compressed spring by certain precompression, then by anchor tip to the rectangular seal inside drill body, precompressed
Spring opens piston, jet stream pipe nipple, positioning pin progress axially position.
The anchor tip is together by a threaded connection with drill body, after completion is threadedly engaged, by welding side
Anchor tip is fixed together by formula completely with drill body, and to the weld seam on anchor tip and drill body excircle into
Row sanding and polishing guarantees the surface roughness of position while welding.
The positioning pin is evenly arranged on drill body inner periphery in 90 °.
Spline fitted is used between the unlatching piston and jet stream pipe nipple, is provided on opening outside piston week and is in
90 ° of uniformly distributed 4 external splines, are provided on jet stream pipe nipple inner periphery in 90 ° of uniformly distributed 4 inner spline grooves, by spline fitted,
Guarantee to open and not produce relative rotation between piston and jet stream pipe nipple, and opens piston to move axially with opposite jet streams pipe nipple,
When drilling liquid pressure increases, the active force increase for opening piston rear end end face is acted on, piston is opened and moves down, precompressed bullet
Spring is further compressed, and when unlatching piston is connected to the through-hole on jet stream pipe nipple circumference, drilling fluid enters jet stream pipe nipple circumference
On circulatory flow.
The circulatory flow quantity is 4 groups, is evenly arranged on jet stream pipe nipple excircle in 90 °.
The beneficial effects of the present invention are: (1) realizes the control of PDC drill bit fluidic oscillation function by adjusting drilling liquid pressure
System, can according to need the fluidic oscillation function of opening or closing drill bit, increases the scope of application of PDC drill bit；(2) work as unlatching
Piston downlink, when jet stream pipe nipple works, PDC drill bit has fluidic oscillation function, provides a fluidic oscillation effect for drill bit, can
To improve the efficiency of breaking rock of drill bit；(3) it opens and uses spline fitted between piston and jet stream pipe nipple, positioning is reliable, ensure that out
Opening piston can be connected to the circular hole of jet stream pipe nipple；(4) using positioning finger setting, positioning side between jet stream pipe nipple and drill body
Formula is simple and reliable.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is operation schematic diagram of the invention.
Fig. 3 is the Section A-A figure in Fig. 2 of the present invention.
Fig. 4 is the section B-B figure in invention figure 2.
Fig. 5 is the C-C sectional view in invention figure 2.
Fig. 6 is the D-D sectional view in invention figure 2.
Fig. 7 is the structural schematic diagram for opening piston.
Fig. 8 is the structural schematic diagram of jet stream pipe nipple.
1. anchor tip in figure, 2. drill bodies, 3. rectangular seals, 4. pre-compressed springs, 5. open piston, and 6. jet streams are short
Section, 7. positioning pins.
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, regulatable fluidic oscillation PDC drill bit is mainly by anchor tip 1, drill body 2, rectangular seal
3, pre-compressed spring 4, unlatching piston 5, jet stream pipe nipple 6, positioning pin 7 form, and the rectangular seal 3, is opened pre-compressed spring 4
Piston 5, jet stream pipe nipple 6, positioning pin 7 are located inside drill body 2, and positioning pin 7 is installed to 2 inner periphery of drill body first
On, then jet stream pipe nipple 6 is installed, it is not generated and is circumferentially rotated by the position assurance jet stream pipe nipple 6 of positioning pin 7, then by precompressed bullet
Spring 4, which is installed to, to be opened on piston 5, rectangular seal 3 is installed on opening 5 back end outer circumference of piston, then install piston 5 is opened
Onto jet stream pipe nipple 6, and keep pre-compressed spring 4 by certain precompression, then by anchor tip 1 in drill body 2
The rectangular seal 3 in portion, opens piston 5, jet stream pipe nipple 6, the progress axially position of positioning pin 7 at pre-compressed spring 4.
The anchor tip 1 is together by a threaded connection with drill body 2, after completion is threadedly engaged, passes through welding
Anchor tip 1 and drill body 2 are fixed together by mode completely, and on anchor tip 1 and 2 excircle of drill body
Weld seam carries out sanding and polishing, guarantees the surface roughness of position while welding.
Spline fitted is used between the unlatching piston 5 and jet stream pipe nipple 6, is provided on opening 5 excircle of piston
In 90 ° of uniformly distributed 4 external splines, it is provided on 6 inner periphery of jet stream pipe nipple in 90 ° of uniformly distributed 4 inner spline grooves, is matched by spline
It closes, guarantees not produce relative rotation between unlatching piston 5 and jet stream pipe nipple 6, and opening piston 5 can be with 6 axis of opposite jet streams pipe nipple
It to movement, when drilling liquid pressure increases, acts on and opens the active force of 5 rear end face of piston and increase, open piston 5 to moving down
Dynamic, pre-compressed spring 4 is further compressed, and when unlatching piston 5 is connected to the through-hole on 6 circumference of jet stream pipe nipple, drilling fluid enters
Circulatory flow on 6 circumference of jet stream pipe nipple.
The positioning pin 7 is evenly arranged on 2 inner periphery of drill body in 90 °；The circulatory flow quantity is 4 groups, is in
90 ° are evenly arranged on 6 excircle of jet stream pipe nipple.
Claims (5)
1. regulatable fluidic oscillation PDC drill bit, it is characterised in that: the regulatable fluidic oscillation PDC drill bit mainly by
Anchor tip (1), rectangular seal (3), pre-compressed spring (4), opens piston (5), jet stream pipe nipple (6), determines drill body (2)
Position pin (7) composition, the rectangular seal (3), open piston (5), jet stream pipe nipple (6), positioning pin (7) at pre-compressed spring (4)
It is internal positioned at drill body (2), positioning pin (7) is installed on drill body (2) inner periphery first, then jet stream pipe nipple is installed
(6), it is not generated and is circumferentially rotated by the position assurance jet stream pipe nipple (6) of positioning pin (7), be then installed to pre-compressed spring (4)
It opens on piston (5), rectangular seal (3) is installed on opening piston (5) back end outer circumference, then piston (5) installation will be opened
To on jet stream pipe nipple (6), and keep pre-compressed spring (4) by certain precompression, then by anchor tip (1) to drill bit sheet
The internal rectangular seal (3) of body (2), pre-compressed spring (4) open piston (5), jet stream pipe nipple (6), positioning pin (7) progress axis
To positioning.
2. regulatable fluidic oscillation PDC drill bit according to claim 1, it is characterised in that: the anchor tip (1)
It is together by a threaded connection with drill body (2), after completion is threadedly engaged, by welding manner, by anchor tip (1) and bores
Head ontology (2) is fixed together completely, and carries out polishing throwing to the weld seam on anchor tip (1) and drill body (2) excircle
Light guarantees the surface roughness of position while welding.
3. regulatable fluidic oscillation PDC drill bit according to claim 1, it is characterised in that: the positioning pin (7) is in
90 ° are evenly arranged on drill body (2) inner periphery.
4. regulatable fluidic oscillation PDC drill bit according to claim 1, it is characterised in that: the unlatching piston (5)
Spline fitted is used between jet stream pipe nipple (6), is provided on opening piston (5) excircle in flower outside 90 ° of uniformly distributed 4
Key is provided on jet stream pipe nipple (6) inner periphery in 90 ° of uniformly distributed 4 inner spline grooves, passes through spline fitted, guarantees to open piston
(5) it does not produce relative rotation between jet stream pipe nipple (6), and open piston (5) to move axially with opposite jet streams pipe nipple (6),
When drilling liquid pressure increases, the active force increase for opening piston (5) rear end face is acted on, piston (5) is opened and moves down,
Pre-compressed spring (4) is further compressed, when open piston (5) be connected to the through-hole on jet stream pipe nipple (6) circumference when, drilling fluid into
Circulatory flow on incident flow pipe nipple (6) circumference.
5. regulatable fluidic oscillation PDC drill bit according to claim 4, it is characterised in that: the circulatory flow number
Amount is 4 groups, is evenly arranged on jet stream pipe nipple (6) excircle in 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910328668.1A CN109931000B (en) | 2019-04-23 | 2019-04-23 | Adjustable jet oscillation PDC drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910328668.1A CN109931000B (en) | 2019-04-23 | 2019-04-23 | Adjustable jet oscillation PDC drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109931000A true CN109931000A (en) | 2019-06-25 |
| CN109931000B CN109931000B (en) | 2020-07-24 |
Family
ID=66990731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910328668.1A Active CN109931000B (en) | 2019-04-23 | 2019-04-23 | Adjustable jet oscillation PDC drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109931000B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396092A (en) * | 2022-02-18 | 2022-04-26 | 中港疏浚有限公司 | Self-propelled trailing suction hopper dredger drag head with automatic regulating function |
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|---|---|---|---|---|
| US6206101B1 (en) * | 1996-06-07 | 2001-03-27 | Bakke Technology As | Method and device for facilitating the insertion of a coiled tube into a well and for loosening stuck objects in a well |
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| KR20140030028A (en) * | 2012-08-29 | 2014-03-11 | 김윤호 | Vibrator and drilling machine using the same |
| CN104314472A (en) * | 2014-10-20 | 2015-01-28 | 江苏航天鸿鹏数控机械有限公司 | Percussion and vibration device of screw drill |
| CN107299825A (en) * | 2017-07-11 | 2017-10-27 | 西北工业大学 | A kind of inertial confinement induction drilling apparatus with PDC drill bit |
| CN207245619U (en) * | 2017-09-27 | 2018-04-17 | 北京益润宇通石油科技有限公司 | A kind of hydroscillator |
| CN207526413U (en) * | 2017-11-21 | 2018-06-22 | 长江大学 | A kind of hydraulic control double acting hydraulic oscillation drilling tool |
| CN207750052U (en) * | 2017-12-29 | 2018-08-21 | 海斯比得（武汉）石油科技有限公司 | Hydroscillator |
| CN108625783A (en) * | 2018-07-03 | 2018-10-09 | 长江大学 | A kind of downhole pressure increasing auxiliary rock tool |
| CN208518604U (en) * | 2018-08-07 | 2019-02-19 | 长江大学 | A kind of reciprocating axial impact pressurizing device |
-
2019
- 2019-04-23 CN CN201910328668.1A patent/CN109931000B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6206101B1 (en) * | 1996-06-07 | 2001-03-27 | Bakke Technology As | Method and device for facilitating the insertion of a coiled tube into a well and for loosening stuck objects in a well |
| CN202578605U (en) * | 2012-04-23 | 2012-12-05 | 吉林大学 | Striking-while-drilling jar knocker |
| CN202706914U (en) * | 2012-07-17 | 2013-01-30 | 中国石油化工股份有限公司 | Impulse jet flow assisting drilling tool |
| KR20140030028A (en) * | 2012-08-29 | 2014-03-11 | 김윤호 | Vibrator and drilling machine using the same |
| CN104314472A (en) * | 2014-10-20 | 2015-01-28 | 江苏航天鸿鹏数控机械有限公司 | Percussion and vibration device of screw drill |
| CN107299825A (en) * | 2017-07-11 | 2017-10-27 | 西北工业大学 | A kind of inertial confinement induction drilling apparatus with PDC drill bit |
| CN207245619U (en) * | 2017-09-27 | 2018-04-17 | 北京益润宇通石油科技有限公司 | A kind of hydroscillator |
| CN207526413U (en) * | 2017-11-21 | 2018-06-22 | 长江大学 | A kind of hydraulic control double acting hydraulic oscillation drilling tool |
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| CN108625783A (en) * | 2018-07-03 | 2018-10-09 | 长江大学 | A kind of downhole pressure increasing auxiliary rock tool |
| CN208518604U (en) * | 2018-08-07 | 2019-02-19 | 长江大学 | A kind of reciprocating axial impact pressurizing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396092A (en) * | 2022-02-18 | 2022-04-26 | 中港疏浚有限公司 | Self-propelled trailing suction hopper dredger drag head with automatic regulating function |
| CN114396092B (en) * | 2022-02-18 | 2022-12-09 | 中港疏浚有限公司 | Self-propelled trailing suction hopper dredger drag head with automatic regulating function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109931000B (en) | 2020-07-24 |
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| 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 610500 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: Adjustable jet oscillation PDC drill bit Granted publication date: 20200724 Pledgee: The Great Wall West Bank Bank of China Deyang hi tech branch Pledgor: Sichuan Bao Wright drill Co.,Ltd. Registration number: Y2024980021330 |