CN106050160A - Stagnation-prevention drilling tool capable of reducing stick slip phenomenon through multi-head helical pair - Google Patents
Stagnation-prevention drilling tool capable of reducing stick slip phenomenon through multi-head helical pair Download PDFInfo
- Publication number
- CN106050160A CN106050160A CN201610387224.1A CN201610387224A CN106050160A CN 106050160 A CN106050160 A CN 106050160A CN 201610387224 A CN201610387224 A CN 201610387224A CN 106050160 A CN106050160 A CN 106050160A
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- China
- Prior art keywords
- drill bit
- runddichtringo
- spiral
- joint
- assembly
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 6
- 206010060904 Freezing phenomenon Diseases 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000004519 grease Substances 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000005755 formation reaction Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (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 relates to a stagnation-prevention drilling tool capable of reducing a stick slip phenomenon through a multi-head helical pair. The stagnation-prevention drilling tool is installed on the upper portion of a drill bit in a thread connection mode and comprises an upper assembly, a vibration absorption assembly and a lower assembly. The rear end of the vibration absorption assembly is provided with an upper connector assembly, and the front end of the vibration absorption assembly is provided with the lower assembly. Vibration generated in the work process of the tool is absorbed through disc springs connected in series, a pressure cavity and a rubber spring. Through matching of a spiral outer shell and a spiral transmission shaft, the multi-head helical pair is formed. When the reaction torque acting on the drill bit is increased and a stick slip or clamping phenomenon occurs, the spiral transmission shaft rotates backwards relative to the spiral outer shell, and therefore small-amplitude reverse rotation is applied to the drill bit. The reaction force of the ground to the drill bit is lowered, stress of the drill bit reaches balance again, and therefore efficient rock breaking with the drill bit is realized. According to the stagnation-prevention drilling tool capable of reducing the stick slip phenomenon through the multi-head helical pair, the vibration generated during rock breaking with the drill bit can be absorbed, the stick slip phenomenon is reduced, and continuous drilling of the drill bit is guaranteed.
Description
Technical field
The invention belongs to oil-gas drilling engineering field one Novel down-hole drilling tool, particularly can be by many
Head spiral realizes the anti-viscous motion drilling tool that viscosity reduction is sliding.
Background technology
At present, petroleum natural gas exploration comes into a bottleneck, and the exploitation in conventional oil gas field progresses into
In the later stage, global Oil Gas exploitation is increasingly turned to unconventionaloil pool exploitation, is gradually turned to deep layer, ultra-deep layer by shallow-layer, land turn to
Ocean is developed.Along with the change of exploitation of oil-gas field environment, its exploitation pattern and production practice technology require more and more higher, deeply
For the relatively conventional oil-gas field development of oil-gas mining difficulty under layer, super Deep Oil And Gas Exploration and complex geological structure, relatively large.
Extreme environment, oil drilling tool only possesses excellent service behaviour, longer service life, could be at petroleum gas
Exploration and development is the most efficient, energy-conservation, complete drillng operation at low cost, and this proposes to oil drilling technology and newly chooses
War, is also the opportunity to develop of petroleum drilling and mining technology.
During oil-gas drilling, especially drilling process, due to bit operating mode circumstance complication, its stress also with
The increase of drilling depth and occur irregularly to change, by drill bit, formation reaction is delivered to top BHA, does not advises
Drilling tool service behaviour will be had an immense impact on by formation reaction then, make troubles for drillng operation.Exploitation Novel down-hole
Drilling tool, utilizes formation reaction to reduce the stick-slip bit freezing phenomenon in drilling process, it is achieved efficiently drillng operation, has been
The new demand of petroleum drilling and mining technology development.A kind of novel anti-viscous motion instrument of exploitation, utilizes formation reaction to realize anti-viscous motion work
Make principle, without harmful force being changed into beneficial effect, moreover it is possible to reduce the stick-slip phenomenon in drilling process, absorb and bore
The vibration produced in head rock break-off process, this will be also the developing direction of following downhole tool.
Summary of the invention
Solve the reduction stratum reaction torque described in background technology and axial reaction force to explore, and had
Effect uses, and the invention provides a kind of anti-viscous motion drilling tool utilizing multi-head spiral to realize viscosity reduction cunning, and the present invention's is anti-
Viscous motion instrument utilizes the vibration that series connection disc spring, pressure chamber and rubber spring produce during absorbing tool work, passes through spiral
Shell matches with spiral shaft, constitutes multi-head spiral secondary, when the reaction torque suffered by drill bit increase produce stick-slip or
During bit freezing phenomenon, spiral shaft opposed helical shell rotates backward, thus drill bit is applied one and rotates backward by a small margin, fall
The low stratum counteracting force to drill bit, makes bit force again reach balance, thus realizes the efficient rock-breaking of drill bit.
The technical scheme is that utilize multi-head spiral realize the sliding anti-viscous motion drilling tool of viscosity reduction by top assembly,
Absorbing assembly and bottom assembly composition, install connector assembly in absorbing assembly rear end, installation bottom, front end assembly, described on connect
Head assembly includes top connection, disc spring, central canal, rectangular seal a, top connection pad, pad, is arranged on by rectangular seal a
On the inner periphery of top connection front end, pad is arranged on central canal, then installed in series in order disc spring, finally top connection pad is pacified
It is contained on central canal；Described absorbing assembly include urceolus, sealing ring, interior wear ring, outer wear ring, flow guide sleeve, anti-lost joint,
Sliding sleeve, rubber spring, O RunddichtringO a, rectangular seal b, O RunddichtringO b, O RunddichtringO c, at sealing ring rear end inside and outside circle
It is respectively mounted interior wear ring and outer wear ring on week, front end internal and external circumference is respectively mounted rectangular seal b and O RunddichtringO a,
And it is combined integral installation in central canal front end, then flow guide sleeve is installed to central canal front end, on sliding sleeve internal and external circumference point
Other mounting O-shaped sealing ring c and O RunddichtringO b, then rubber spring is installed to sliding sleeve front end, make O RunddichtringO b, O type seal
Circle c, sliding sleeve are combined as an entirety with rubber spring, then attach it on anti-lost joint, and anti-lost joint is solid by screw thread
Surely arrive flow guide sleeve front end, finally urceolus is installed to top connection front end；Described bottom assembly includes joint, spiral case, spiral shell
Rotation power transmission shaft, retaining ring, lock-on connection, lower contact, O RunddichtringO d, O RunddichtringO e, rectangular seal c, before and after joint
Difference mounting O-shaped sealing ring e and O RunddichtringO d at the screw thread of two ends, and joint is arranged on anti-lost joint front end, by outside spiral
Shell is connected to outer cylinder front end, then spiral shaft screws in spiral case, and is connected with joint, retaining ring is arranged on spiral and passes
Moving axis front end, puts into rectangular seal c on lock-on connection inner periphery, then coordinates with spiral case；When described disc spring is installed,
Using the mode that is installed in series with pressure, the pod apertures number on flow guide sleeve circumference is 4, inclined shape, it is simple to mud enters inner chamber,
And the pressure oscillation of generation is less.
The invention has the beneficial effects as follows: the multi-head spiral that utilizes of (1) this invention realizes the anti-viscous motion spudder that viscosity reduction is sliding
Tool uses multi-head spiral structure, and its transmission efficiency is higher, and rotary speed is fast, it is not easy to produces Relative sliding, can quickly realize
The reciprocating motion of spiral shaft, enables drill bit to be rapidly separated stick-slip or bit freezing state, it is ensured that the efficient rock-breaking of drill bit；
(2) series connection disc spring, pressure chamber and rubber spring combinative structure are utilized, the vibration produced during absorbing tool work, permissible
Avoid vibration to be delivered to top drilling tool or test instrunment, it is produced impact；(3) series connection disc spring is used to transmit the pressure of the drill, it is possible to
The transmission of the pressure of the drill is effectively ensured, simultaneously with pressure chamber and the common absorbing of rubber spring, it is achieved that the multi-function action of disc spring；(4)
Utilizing multi-head spiral to realize the sliding anti-viscous motion drilling tool of viscosity reduction is a kind of Novel down-hole drilling tool, it is possible to effectively reduce drilling well
During stick-slip phenomenon, provide help for drillng operation efficient, energy-conservation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of disc spring；
Fig. 3 is the structural representation of flow guide sleeve；
Fig. 4 is the structural representation of sealing ring；
Fig. 5 is the structural representation of sliding sleeve；
Fig. 6 is the structural representation of rubber spring；
Fig. 7 is the structural representation of lock-on connection；
1-top connection in figure, 2-rectangular seal a, 3-top connection pad, 4-disc spring, 5-central canal, 6-urceolus, 7-pad
Sheet, wear ring in 8-, the outer wear ring of 9-, 10-sealing ring, 11-O RunddichtringO a, 12-rectangular seal b, 13-flow guide sleeve, 14-
O RunddichtringO b, the 15-O anti-lost joint of RunddichtringO c, 16-, 17-sliding sleeve, 18-rubber spring, 19-O RunddichtringO d, 20-connects
Head, 21-O RunddichtringO e, 22-spiral case, 23-spiral shaft, 24-retaining ring, 25-lock-on connection, 26-rectangular seal
Circle c, 27-lower contact.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
See Fig. 1, utilize multi-head spiral realize the sliding anti-viscous motion drilling tool of viscosity reduction by top assembly, absorbing assembly and under
Portion's assembly composition, installs connector assembly, installation bottom, front end assembly in absorbing assembly rear end.Described top connection assembly includes
Joint 1, disc spring 4, central canal 5, rectangular seal a2, top connection pad 3, pad 7, be arranged on top connection by rectangular seal a2
On 1 front end inner periphery, pad 7 is arranged on central canal 5, then installed in series in order disc spring 4, finally top connection pad 3 is pacified
It is contained on central canal 5, utilizes disc spring 4 to transmit the pressure of the drill, and enable tool interior structure to have axial displacement, utilize rectangular seal
Gap between circle a2 center seal pipe 5 and top connection 1, prevents mud from passing through gap and enters inner chamber residing for disc spring 4, affect disc spring
The service behaviour of 4.
Described absorbing assembly includes urceolus 6, sealing ring 10, interior wear ring 8, outer wear ring 9, flow guide sleeve 13, anti-lost connects
16, sliding sleeve 17, rubber spring 18, O RunddichtringO a11, rectangular seal b12, O RunddichtringO b14, O RunddichtringO c15,
Sealing ring 10 rear end internal and external circumference is respectively mounted interior wear ring 8 and outer wear ring 9, front end internal and external circumference is respectively mounted square
Shape sealing ring b12 and O RunddichtringO a11, and it is combined integral installation in central canal 5 front end, then flow guide sleeve 13 is installed to
Central canal 5 front end, is respectively mounted O RunddichtringO c15 and O RunddichtringO b14 on sliding sleeve 17 internal and external circumference, then by rubber spring
18 are installed to sliding sleeve 17 front end, make O RunddichtringO b14, O RunddichtringO c15, sliding sleeve 17 and rubber spring 18 be combined as one whole
Body, then attach it to, on anti-lost joint 16, anti-lost joint 16 is threadably secured to flow guide sleeve 13 front end, finally by urceolus
6 are installed to top connection 1 front end, and mud enters inner chamber by the pod apertures on flow guide sleeve 13 circumference, promote sealing ring 10 and sliding sleeve
17 move, and make rubber spring 18 contact with anti-lost joint 16, jointly absorb instrument by the mud of rubber spring 18 with interior intracavity
The vibration that operating produces.
Described bottom assembly include joint 20, spiral case 22, spiral shaft 23, retaining ring 24, lock-on connection 25,
Lower contact 27, O RunddichtringO d19, O RunddichtringO e21, rectangular seal c26, pacify at the screw thread of joint 20 rear and front end respectively
Dress O RunddichtringO e21 and O RunddichtringO d19, and joint 20 is arranged on anti-lost joint 16 front end, spiral case 22 is connected
To urceolus 6 front end, then spiral shaft 23 is screwed in spiral case 22, and be connected with joint 20, retaining ring 24 is arranged on spiral shell
Rotation power transmission shaft 23 front end, puts into rectangular seal c26 on lock-on connection 25 inner periphery, then coordinates with spiral case 22, pass through
Spiral case 22 matches with spiral shaft 23, constitutes multi-head spiral secondary, and load transfer to drill bit, tool drives drill bit is normal
Creep into, when the reaction torque suffered by drill bit increases and produces stick-slip or bit freezing phenomenon, outside spiral shaft 23 opposed helical
Shell 22 produces and rotates backward by a small margin, thus reduces the stratum counteracting force to drill bit, makes bit force again reach balance, real
The efficient rock-breaking of existing drill bit.
When described disc spring 4 is installed, use the mode that is installed in series with pressure, and answer spraying lubricating grease in adjacent contacting surface；Institute
The pod apertures number on flow guide sleeve 13 circumference stated is 4, inclined shape, it is simple to mud enters inner chamber, and the pressure wave produced
Dynamic less.
Claims (3)
1. utilize multi-head spiral to realize the anti-viscous motion drilling tool that viscosity reduction is sliding, it is characterised in that: described anti-viscous motion drilling tool
Including top assembly, absorbing assembly and bottom assembly, installing connector assembly in absorbing assembly rear end, installation bottom, front end is total
Become；Described top connection assembly includes top connection (1), disc spring (4), central canal (5), rectangular seal a (2), top connection pad
(3), pad (7), rectangular seal a (2) is arranged on the inner periphery of top connection (1) front end, pad (7) is arranged on central canal
(5) on, then installed in series in order disc spring (4), finally top connection pad (3) is arranged on central canal (5), utilizes disc spring (4)
Transmission the pressure of the drill, and enable tool interior structure to have axial displacement, utilize rectangular seal a (2) center seal pipe (5) with upper
Gap between joint (1), prevents mud from passing through gap and enters inner chamber residing for disc spring (4), affect the service behaviour of disc spring (4)；
Absorbing assembly includes urceolus (6), sealing ring (10), interior wear ring (8), outer wear ring (9), flow guide sleeve (13), anti-lost joint
(16), sliding sleeve (17), rubber spring (18), O RunddichtringO a (11), rectangular seal b (12), O RunddichtringO b (14), O type
Sealing ring c (15), is respectively mounted interior wear ring (8) and outer wear ring (9), in front end on the internal and external circumference of sealing ring (10) rear end
It is respectively mounted rectangular seal b (12) and O RunddichtringO a (11) on excircle, and is combined integral installation in central canal (5)
Front end, then flow guide sleeve (13) is installed to central canal (5) front end, sliding sleeve (17) internal and external circumference is respectively mounted O RunddichtringO c
(15) with O RunddichtringO b (14), then rubber spring (18) is installed to sliding sleeve (17) front end, makes O RunddichtringO b (14), O type
Sealing ring c (15), sliding sleeve (17) and rubber spring (18) are combined as an entirety, then attach it on anti-lost joint (16),
It is threadably secured to anti-lost joint (16) flow guide sleeve (13) front end, finally urceolus (6) is installed to top connection (1) front end,
Mud enters inner chamber by the pod apertures on flow guide sleeve (13) circumference, promotes sealing ring (10) mobile with sliding sleeve (17), makes rubber
Spring (18) contacts with anti-lost joint (16), jointly absorbs tool operation by the mud of rubber spring (18) Yu interior intracavity and produces
Vibration；Bottom assembly includes joint (20), spiral case (22), spiral shaft (23), retaining ring (24), lock-on connection
(25), lower contact (27), O RunddichtringO d (19), O RunddichtringO e (21), rectangular seal c (26), before and after joint (20)
Difference mounting O-shaped sealing ring e (21) and O RunddichtringO d (19) at the screw thread of two ends, and joint (20) is arranged on anti-lost joint
(16) front end, is connected to spiral case (22) urceolus (6) front end, then spiral shaft (23) is screwed in spiral case (22),
And be connected with joint (20), retaining ring (24) is arranged on spiral shaft (23) front end, on lock-on connection (25) inner periphery
Put into rectangular seal c (26), then coordinate with spiral case (22), matched with spiral shaft (23) by spiral case (22)
Closing, constitute multi-head spiral secondary, load transfer to drill bit, tool drives drill bit normally creeps into, when the reaction torque suffered by drill bit
When increasing generation stick-slip or bit freezing phenomenon, spiral shaft (23) opposed helical shell (22) produces and rotates backward by a small margin,
Thus reduce the stratum counteracting force to drill bit, make bit force again reach balance, it is achieved the efficient rock-breaking of drill bit.
The anti-viscous motion drilling tool utilizing multi-head spiral to realize viscosity reduction cunning the most according to claim 1, it is characterised in that: institute
When the disc spring (4) stated is installed, use the mode that is installed in series with pressure, and answer spraying lubricating grease in adjacent contacting surface.
The anti-viscous motion drilling tool utilizing multi-head spiral to realize viscosity reduction cunning the most according to claim 1, it is characterised in that: institute
The pod apertures number on flow guide sleeve (13) circumference stated is 4, inclined shape, it is simple to mud enters inner chamber, and the pressure produced
Fluctuate less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610387224.1A CN106050160B (en) | 2016-06-02 | 2016-06-02 | The anti-viscous motion drilling tool of viscosity reduction cunning is realized using multi-head spiral |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610387224.1A CN106050160B (en) | 2016-06-02 | 2016-06-02 | The anti-viscous motion drilling tool of viscosity reduction cunning is realized using multi-head spiral |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106050160A true CN106050160A (en) | 2016-10-26 |
| CN106050160B CN106050160B (en) | 2018-06-22 |
Family
ID=57172740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610387224.1A Active CN106050160B (en) | 2016-06-02 | 2016-06-02 | The anti-viscous motion drilling tool of viscosity reduction cunning is realized using multi-head spiral |
Country Status (1)
| Country | Link |
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| CN (1) | CN106050160B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837311A (en) * | 2017-02-21 | 2017-06-13 | 中石化石油机械股份有限公司江钻分公司 | A kind of downhole testing device of anti-brake tool |
| CN106894770A (en) * | 2017-04-13 | 2017-06-27 | 西南石油大学 | A kind of downhole tool for reducing drill string stick slip vibration |
| CN108179976A (en) * | 2017-12-27 | 2018-06-19 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of preload adjustable formula torque controller and adjusting method |
| CN108708710A (en) * | 2018-05-29 | 2018-10-26 | 西南石油大学 | A method of leading to drill bit burying occurrence probability for reducing well wall dropping block |
| CN112901062A (en) * | 2021-01-27 | 2021-06-04 | 中国石油大学(华东) | Automatic torque adjusting device for drill bit |
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| CN103485726A (en) * | 2013-10-11 | 2014-01-01 | 西南石油大学 | Device used for weakening stick-slip vibration of downhole drilling tool and control method of device |
| CN103953293A (en) * | 2014-04-11 | 2014-07-30 | 盐城市大冈石油工具厂有限责任公司 | Shock-absorption fluid director of screw drill |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837311A (en) * | 2017-02-21 | 2017-06-13 | 中石化石油机械股份有限公司江钻分公司 | A kind of downhole testing device of anti-brake tool |
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| CN106894770A (en) * | 2017-04-13 | 2017-06-27 | 西南石油大学 | A kind of downhole tool for reducing drill string stick slip vibration |
| CN108179976A (en) * | 2017-12-27 | 2018-06-19 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of preload adjustable formula torque controller and adjusting method |
| CN108708710A (en) * | 2018-05-29 | 2018-10-26 | 西南石油大学 | A method of leading to drill bit burying occurrence probability for reducing well wall dropping block |
| CN108708710B (en) * | 2018-05-29 | 2021-09-21 | 西南石油大学 | Method for reducing probability of drill bit burying caused by well wall dropping block |
| CN112901062A (en) * | 2021-01-27 | 2021-06-04 | 中国石油大学(华东) | Automatic torque adjusting device for drill bit |
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| Publication number | Publication date |
|---|---|
| CN106050160B (en) | 2018-06-22 |
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Inventor after: Tian Jialin Inventor after: Zhu Zhi Inventor after: Yang Yinglin Inventor after: Yang Lin Inventor after: Cai Xudong Inventor after: Du Fan Inventor after: Zhou Tao Inventor before: Tian Jialin Inventor before: Yang Yinglin Inventor before: Yang Lin Inventor before: Hu Shuhui Inventor before: Cai Xudong Inventor before: Du Fan Inventor before: Zhou Tao |
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Effective date of registration: 20201125 Address after: 221000 Yangtun grain management institute, Yangtun Town, Peixian County, Xuzhou City, Jiangsu Province Patentee after: Peixian Dongbao Electromechanical Equipment Co., Ltd Address before: No. 8 Road, Xindu Xindu District of Chengdu city of Sichuan Province in 610500 Patentee before: SOUTHWEST PETROLEUM University |
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