CN104612582B - Underground vibrating percussion tool based on screw rod Yu Double helix ball screw - Google Patents
Underground vibrating percussion tool based on screw rod Yu Double helix ball screw Download PDFInfo
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- CN104612582B CN104612582B CN201410708942.5A CN201410708942A CN104612582B CN 104612582 B CN104612582 B CN 104612582B CN 201410708942 A CN201410708942 A CN 201410708942A CN 104612582 B CN104612582 B CN 104612582B
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- screw
- turbine
- double helix
- shaft
- ball
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
Abstract
The invention discloses a kind of underground vibrating percussion tool based on screw rod Yu Double helix ball screw in the fields such as oil drilling, solve bit freezing, stick-slip, the problem of efficiency of breaking rock during brill deep-well, ultradeep well.Its technical scheme is: turbine case and top outer cylinder body pass through screwed connection, turbine central shaft, hollow drive shaft, screw motor shell, bottom outer cylinder body, from all directions set pass sequentially through screw thread and are connected, screw rotor, universal drive shaft, adaptor, Double helix ball screw pass sequentially through screw thread and are connected, transmission tube is moved up and down along Double helix ball screw with the orange slot fit on the sphere of ellipsoid center by tumbler bearing, and hammering block is connected by screw thread with bit adapter.The present invention bit adapter can be made to rotate while by axial impact force, improve drill bit and break the efficiency of rock, improve rate of penetration, and then reduce drilling cost.
Description
Technical field
The present invention relates to a kind of for oil drilling, mining, geological drilling, natural gas, coal gas layer the field such as drilling well in
There is the down-hole equipment of vibratory impulse.
Background technology
In the last few years, along with the development of China's industry, oil, the demand of natural gas and yield were the most increasing.But,
This situation causes the exhaustion of a large amount of Shallow Oil-Gas resource.In order to alleviate the shortage problem of China's oil resource, people start to deeply
The field that the environmental condition such as well, ultradeep well is severe carries out oil exploitation.But show according to exploitation field condition: along with drilling well is deep
The increase of degree, rock its intensity and hardness under the effect of stratum confined pressure the most substantially increase, and make the difficulty of catalase be greatly increased；
Simultaneously in drilling process, drill bit usually there will be bit freezing, stick-slip phenomenon；These factors cause drill bit rate of penetration to decline, broken
Rock efficiency reduces, and adds drilling cost.Major part is on-the-spot at present uses hydraulic percussion drilling technology, due to hydraulical impact
The commutation action of device is dependent on drilling fluid and drives reversal valve to realize, and easily occurs following two defect in its work process:
One is that the erosion of drilling fluid causes switching valve member cisco unity malfunction, thus causes whole impacter unstable properties, and the life-span is short；
Two are frequency of vibration and impulsive force changes with the change of the factor such as drilling fluid displacement and pump pressure, and no matter drill bit is designed by this change
Or solving crushing rock formation acting and be all difficult to accomplish to be consistent with practical situation, impact grinding effect is undesirable.
Based on this, in order to effectively improve drill bit rate of penetration, reach to break rapidly the purpose of rock, set forth herein based on screw rod with double
The underground vibrating percussion tool of spiral ball screw.
Summary of the invention
It is an object of the invention to: in order to solve bit freezing, the stick-slip phenomenon occurred during boring deep-well and extended reach well, improve
Efficiency of breaking rock, reduces drilling cost, special offer underground vibrating percussion tool based on screw rod Yu Double helix ball screw.
In order to achieve the above object, the technical solution used in the present invention is: underground vibrating based on screw rod Yu Double helix ball screw
Percussion tool, is mainly driven by turbine drive assembly, power transmission shaft, top outer cylinder body, bottom outer cylinder body, anti-lost assembly, motor
Dynamic assembly, universal drive shaft assembly, adaptor, Double helix ball screw, transmission tube, jump bit, hammering block, from all directions set, drill bit connect
Head composition；It is characterized in that, be attached by screw thread between turbine case and top outer cylinder body, in turbine case on the shaft shoulder
Have equally distributed liquid stream through hole；Turbine drive assembly is arranged on the inside of turbine case, and wherein turbine rotor is installed on turbine
On central shaft, its upper end is axially positioned by the nut being threaded on turbine central shaft, and lower end is by turbine central shaft
The outer shaft shoulder axially positions；Turbine stator is close to turbine case inwall, and its upper and lower side is respectively by upper adjustment ring and lower adjustment ring
Axially positioning, upper adjustment ring is carried out axial restraint by the shaft shoulder in turbine case and turbine stator, and lower adjustment ring is by turbine stator
The shaft shoulder outer with turbine central shaft axially positions；Turbine central shaft lower end has axial liquid circulation road, and its upper end is by outside turbine
In shell, the shaft shoulder positions, and has uniform feed pathway in its lower end；Flat key is arranged on turbine rotor and turbine central shaft
In keyway；Journal bearing combination is installed between shaft shoulder groove and turbine central shaft upper end in turbine case；Sealing ring is arranged on
Between turbine case lower end and turbine central shaft lower end；Packing ring is had between the shaft shoulder in the outer shaft shoulder of turbine central shaft and top outer cylinder body
Combining with bearing, bearing combination is made up of cylinder roller bearing and thrust ball bearing, and bearing combination lower end is by being threaded in whirlpool
Nut on wheel central shaft axially positions；Hollow drive shaft upper and lower side passes through with turbine central shaft and screw motor housing successively
Threaded, and be matched in clearance with top outer cylinder body, between its outer wall and top outer cylinder body, there are dynamic seal ring group, movable sealing
Circle group is by 3 groups of L-type sealing rings and rectangle sealing ring, and 2 packing ring compositions；Screw motor enclosure interior is from top to bottom
Anti-lost assembly, motor drive assembly, universal drive shaft assembly, adaptor；Wherein the anti-external diameter that caps off is more than shoulder in screw motor housing
Internal diameter, anti-boom upper and lower side caps off with anti-successively and screw rotor is threadeded, and screw stator is attached to screw motor inner walls
Coordinate with screw rotor；Live hinge upper and lower side be threaded connection with screw rotor and adaptor successively, live hinge, ball seat, lock sleeve,
Connecting rod, drive ball, pressure-bearing ball, sealing shroud form universal drive shaft together, and universal drive shaft is ball clack formula universal drive shaft；Adaptor lower end is with double
Spiral ball screw is threaded by silk, and has uniform feed liquor through hole in its circumference；Bottom outer cylinder body upper and lower side successively with
Screw motor housing is connected by screw thread with set from all directions, is provided with packing ring between the internal shaft shoulder in adaptor lower end and bottom outer cylinder body；
Being provided with dynamic seal ring group between the shaft shoulder in Double helix ball screw upper end and outer cylinder body upper end, bottom, dynamic seal ring group is by 3 groups of L
RunddichtringO and rectangle sealing ring, and 2 packing ring compositions；Have uniformly in Double helix ball screw upper end circumference simultaneously
Discharge opeing through hole；Equipped with smooth ellipsoid between Double helix ball screw screw pair, ellipsoid center sphere has orange groove；
Being connected by screw a tumbler bearing at transmission tube inwall, tumbler bearing is joined by the orange groove of fixing ball with ellipsoid median plane
Motion between incompatible transmission Double helix ball screw and transmission tube；Transmission tube is along separate two lobes of axisymmetrical, and uses
Separate two lobes are coupled together by screw, and its lower end is threaded connection with jump bit；It is interior that hammering block is arranged on set from all directions, its lower end
It is threaded connection with bit adapter.
The invention has the beneficial effects as follows: (1) this instrument makes jump bit reciprocating impact hammering block, hammering block handle by Double helix ball screw
Impulsive force is delivered on drill bit, makes drill bit by the axial impact of uniform frequency；(2) drill bit is at axial impact and the work of revolving force
Under with, bit freezing, stick-slip phenomenon can be prevented effectively from, make rate of penetration be greatly improved, extend drilling life of bit, improve drilling well
Efficiency.
Accompanying drawing explanation
Fig. 1 is present invention structural representation based on screw rod Yu the underground vibrating percussion tool of Double helix ball screw.
In figure: 1. turbine case, 2. liquid stream through hole, 3. journal bearing combination, 4. nut, 5. go up adjustment ring, 6. turbine rotor,
7. turbine stator, 8. turbine central shaft, 9. flat key, 10. descend adjustment ring, 11. feed pathway, 12. sealing rings, 13. packing rings,
14. nuts, 15. bearing combinations, 16.L RunddichtringO, 17. rectangle sealing rings, 18. packing rings, 19. top outer cylinder bodies, 20.
Hollow drive shaft, 21. screw motor housings, 22. anti-cap off, 23. anti-booms, 24. screw rotors, 25. screw stators, 26.
Ball seat, 27. live hinges, 28. connecting rods, 29. lock sleeves, 30. drive ball, 31. sealing shrouds, 32. pressure-bearing balls, 33. feed liquor through holes,
34. adaptors, 35. packing rings, 36.L RunddichtringO, 37. rectangle sealing rings, 38. packing rings, 39. discharge opeing through holes, 40. pairs of spiral shells
Rotary roll ballscrew, 41. screws, 42. bottom outer cylinder bodies, 43. ellipsoids, 44. transmission tubes, 45. jump bits, 46. hammering blocks, 47.
Set, 48. bit adapters from all directions.
Fig. 2 is the schematic diagram of Fig. 1 transmission tube of the present invention combination.
In figure: 41. screws, 44. transmission tubes, 49. screws, 50. tumbler bearings.
Fig. 3 is the enlarged drawing of ellipsoid 43 in Fig. 1 of the present invention.
Detailed description of the invention
Shown in reference to the accompanying drawings, underground vibrating percussion tool based on screw rod Yu Double helix ball screw, the most total by turbine drive
Become 6-8, hollow drive shaft 20, top outer cylinder body 19, bottom outer cylinder body 42, bleed off assembly 22-23, motor drive assembly 24-25,
Universal drive shaft assembly 26-32, adaptor 34, Double helix ball screw 40, transmission tube 44, jump bit 45, hammering block 46, from all directions
Set 47, bit adapter 48 form；It is characterized in that, be attached by screw thread between turbine case 1 and top outer cylinder body 19,
Equally distributed liquid stream through hole 2 is had on the shaft shoulder in turbine case 1；Turbine drive assembly 6-8 is arranged on the interior of turbine case 1
Portion, wherein turbine rotor 6 is installed on turbine central shaft 8, and its upper end is by the nut 4 being threaded on turbine central shaft 8
Axially positioning, lower end is axially positioned by the outer shaft shoulder of turbine central shaft 8；Turbine stator 7 is close to turbine case 1
Inwall, its upper and lower side is axially positioned by upper adjustment ring 5 and lower adjustment ring 10 respectively, and upper adjustment ring 5 is by turbine case 1
The interior shaft shoulder and turbine stator 7 carry out axial restraint, and lower adjustment ring 10 is carried out axle by turbine stator 7 and the outer shaft shoulder of turbine central shaft 8
To location；Turbine central shaft 8 lower end has axial liquid circulation road, and its upper end is positioned by the shaft shoulder in turbine case 1, and
Uniform feed pathway 11 is had in its lower end；Flat key 9 is arranged in the keyway of turbine rotor 6 and turbine central shaft 8；In whirlpool
Journal bearing combination 3 is installed between shaft shoulder groove and turbine central shaft 8 upper end in hub cap 1；Sealing ring 12 is arranged on turbine
Between shell 1 lower end and turbine central shaft 8 lower end；Have between the shaft shoulder in the outer shaft shoulder of turbine central shaft 8 and top outer cylinder body 19
Packing ring 13 and bearing combination 15, bearing combination 15 is made up of cylinder roller bearing and thrust ball bearing, and bearing combines 15 times
End is axially positioned by the nut 14 being threaded on turbine central shaft 8；Hollow drive shaft 20 upper and lower side successively with turbine
Central shaft 8 and screw motor housing 21 are threaded connection, and are matched in clearance with top outer cylinder body 19, its outer wall with on
Have dynamic seal ring group 16-18 between portion's outer cylinder body 19, dynamic seal ring group by 3 groups of L-type sealing rings 16 and rectangle sealing ring 17,
And 2 packing rings 18 form；Screw motor housing 21 is internal be from top to bottom anti-lost assembly 22-23, motor drive assembly 24-25,
Universal drive shaft assembly 26-32, adaptor 34；Wherein anti-22 external diameters that cap off are more than the internal diameter of shoulder in screw motor housing 21, anti-
Fall bar 23 upper and lower side successively with anti-cap off 22 and screw rotor 24 threaded, screw stator 25 is attached to screw motor housing 21
Inwall coordinates with screw rotor 24；Hinge of living 27 upper and lower sides are threaded connection with screw rotor 24 and adaptor 34 successively, live
Hinge 27, ball seat 26, lock sleeve 29, connecting rod 28, drive ball 30, pressure-bearing ball 32, sealing shroud 31 form universal drive shaft together,
Universal drive shaft is ball clack formula universal drive shaft；Threadeded by silk with Double helix ball screw 40 in adaptor 34 lower end, and in its circumference
Have uniform feed liquor through hole 33；Bottom outer cylinder body 42 upper and lower side passes through spiral shell with screw motor housing 21 and all directions set 47 successively
Stricture of vagina is connected, and is provided with packing ring 35 between the internal shaft shoulder in adaptor 34 lower end and bottom outer cylinder body 42；Double helix ball screw 40
Being provided with dynamic seal ring group 36-38 between the shaft shoulder in upper end and bottom outer cylinder body 42 upper end, dynamic seal ring group is sealed by 3 groups of L-types
Circle 36 and rectangle sealing ring 37, and 2 packing rings 38 form；Have in Double helix ball screw 40 upper end circumference simultaneously
Uniform discharge opeing through hole 39；Equipped with smooth ellipsoid 43 between Double helix ball screw 40 screw pair, at ellipsoid 43 astrosphere
Orange groove is had on face；Connecting a tumbler bearing 50 at transmission tube 44 inwall by screw 49, tumbler bearing 50 is by fixing
Ball and the orange slot fit of ellipsoid 43 median plane transmit the motion between Double helix ball screw 40 and transmission tube 44；
Transmission tube 44 is along separate two lobes of axisymmetrical, and uses screw 41 to be coupled together by separate two lobes, its lower end and punching
Hammer 45 is threaded connection；Hammering block 46 is arranged in overlapping 47 from all directions, and its lower end is threaded connection with bit adapter 48.
In work process, drilling liquid flow enters turbine drive assembly 6-8 through liquid stream through hole 2, and under the driving of drilling fluid, turbine turns
Son 6 drives turbine central shaft 8 to rotate by flat key 9, and turbine central shaft 8 is passed to by 20 torques of hollow drive shaft simultaneously
Screw motor housing 21, and gradually it is delivered to bit adapter 48 through bottom outer cylinder body 42, from all directions set 47,46 torques of hammering block
On；The drilling fluid entering turbine drive assembly 6-8 flows out from turbine stator 7 and turbine rotor 6, then passes through fluid course
11 enter turbine central shaft 8 inside and flow through hollow drive shaft 20 internal entrance screw motor housing 21 inside；Then drilling fluid
Enter and motor drive assembly 24-25 drive screw rotor 24 rotate, be then passed through feed pathway 33 and enter adaptor 34 inside,
And flowed out by apocenosis passage 39；Screw rotor 24 is delivered to adaptor 34 by universal drive shaft torque, and adaptor 34 drives
Double helix ball screw 40 rotates, and along with the single direction rotation of Double helix ball screw 40, transmission tube 44 is by tumbler bearing 50
Ball pump along Double helix ball screw 40 with coordinating of the orange groove on ellipsoid 43, when ellipsoid 39 upwards
Commutation is started, in like manner, when ellipsoid 43 is moved downwardly to Double helix when moving at the thread termination of Double helix ball screw 40 top
Commutation is started during ball screw 40 lower thread termination；Along with pumping of transmission tube 44, jump bit 45 is the most upper and lower
Mobile, during jump bit 45 moves down, make bit adapter 48 by axial impact on impact hammering block 46.
Claims (4)
1. underground vibrating percussion tool based on screw rod Yu Double helix ball screw, mainly by turbine drive assembly, power transmission shaft, on
Portion's outer cylinder body, bottom outer cylinder body, anti-lost assembly, motor drive assembly, universal drive shaft assembly, adaptor, Double helix ball
Screw mandrel, transmission tube, jump bit, hammering block, from all directions set, bit adapter composition；Turbine case (1) and top outer cylinder body (19)
Between be attached by screw thread, in turbine case (1), on the shaft shoulder, have equally distributed liquid stream through hole (2)；Turbine
Drive assembly (6-8) is arranged on the inside of turbine case (1), and wherein turbine rotor (6) is installed on turbine central shaft (8)
On, its upper end is axially positioned by the nut (4) being threaded on turbine central shaft (8), and turbine is passed through in lower end
The outer shaft shoulder of central shaft (8) axially positions；Turbine stator (7) is close to turbine case (1) inwall, its upper and lower side
Axially being positioned by upper adjustment ring (5) and lower adjustment ring (10) respectively, upper adjustment ring (5) is by turbine case (1)
The interior shaft shoulder and turbine stator (7) carry out axial restraint, and lower adjustment ring (10) is by turbine stator (7) and turbine central shaft
(8) the outer shaft shoulder axially positions；Turbine central shaft (8) lower end has axial liquid circulation road, and turbine is passed through in its upper end
Shell (1) the interior shaft shoulder positions, and has uniform feed pathway (11) in its lower end；Flat key (9) is arranged on whirlpool
In the keyway of wheel rotor (6) and turbine central shaft (8)；Shaft shoulder groove and turbine central shaft (8) in turbine case (1)
Journal bearing combination (3) is installed between upper end；Sealing ring (12) is arranged on turbine case (1) lower end and turbine central shaft (8)
Between lower end；Packing ring (13) and bearing combination is had between the shaft shoulder in turbine central shaft (8) the outer shaft shoulder and top outer cylinder body (19)
(15), bearing combination (15) lower end is axially positioned by the nut (14) being threaded on turbine central shaft (8)；Hollow
Power transmission shaft (20) upper and lower side is threaded connection with turbine central shaft (8) and screw motor housing (21) successively, and with top outside
Cylinder (19) is matched in clearance, has dynamic seal ring group (16-18) between its outer wall and top outer cylinder body (19)；Screw motor shell
Body (21) is internal is anti-lost assembly (22-23), motor drive assembly (24-25), universal drive shaft assembly (26-32), switching from top to bottom
Head (34)；Wherein anti-(22) external diameter that caps off is more than the internal diameter of screw motor housing (21) interior shoulder, and anti-boom (23) upper and lower side is successively
Capping off (22) with anti-and screw rotor (24) is threadeded, screw stator (25) is attached to screw motor housing (21) inwall and turns with screw rod
Son (24) coordinates；Hinge of living (27) upper and lower side is threaded connection with screw rotor (24) and adaptor (34) successively, and universal drive shaft is ball
Flap-type universal drive shaft；Being threadeded by silk with Double helix ball screw (40) in adaptor (34) lower end, and has all in its circumference
Even feed liquor through hole (33)；Bottom outer cylinder body (42) upper and lower side passes through screw thread with screw motor housing (21) and all directions set (47) successively
It is connected, between the internal shaft shoulder in adaptor (34) lower end and bottom outer cylinder body (42), packing ring (35) is installed；Double helix ball wire
Between the shaft shoulder, dynamic seal ring group (36-38) is installed in bar (40) upper end and bottom outer cylinder body (42) upper end；Simultaneously at Double helix
Ball screw (40) upper end circumference has uniform discharge opeing through hole (39)；Between Double helix ball screw (40) screw pair equipped with
Smooth ellipsoid (43), has orange groove on the sphere of ellipsoid (43) center；At transmission tube (44) inwall by screw (49)
Connecting a tumbler bearing (50), tumbler bearing (50) is joined by the orange groove of fixing ball with ellipsoid (43) median plane
Motion between incompatible transmission Double helix ball screw (40) and transmission tube (44)；Transmission tube (44) is along axis
Symmetrical separate two lobes, and use screw (41) to be coupled together by separate two lobes, its lower end leads to jump bit (45)
Cross threaded；It is interior that hammering block (46) is arranged on set (47) from all directions, and its lower end is with bit adapter (48) by screw thread even
Connect.
Underground vibrating percussion tool based on screw rod Yu Double helix ball screw the most according to claim 1, it is characterised in that footpath
To the angular contact ball bearing that bearing combination (3) is back-to-back installation, bearing combination (15) is cylinder roller bearing and thrust
Ball bearing forms.
Underground vibrating percussion tool based on screw rod Yu Double helix ball screw the most according to claim 1, it is characterised in that close
Seal (12) is L-type sealing ring and rectangle sealing ring composition, and dynamic seal ring group (16-18,36-38) is sealed by L-type
Circle, rectangle sealing ring and packing ring stack composition Che Shi and seal structure.
Underground vibrating percussion tool based on screw rod Yu Double helix ball screw the most according to claim 1, it is characterised in that ten thousand
Be ball clack formula universal drive shaft to axle, by live hinge (27), ball seat (26), lock sleeve (29), connecting rod (28), drive ball (30),
Pressure-bearing ball (32), sealing shroud (31) form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708942.5A CN104612582B (en) | 2014-11-28 | 2014-11-28 | Underground vibrating percussion tool based on screw rod Yu Double helix ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708942.5A CN104612582B (en) | 2014-11-28 | 2014-11-28 | Underground vibrating percussion tool based on screw rod Yu Double helix ball screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104612582A CN104612582A (en) | 2015-05-13 |
| CN104612582B true CN104612582B (en) | 2016-08-24 |
Family
ID=53147207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410708942.5A Expired - Fee Related CN104612582B (en) | 2014-11-28 | 2014-11-28 | Underground vibrating percussion tool based on screw rod Yu Double helix ball screw |
Country Status (1)
| Country | Link |
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| CN (1) | CN104612582B (en) |
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| CN105019439B (en) * | 2015-06-05 | 2016-09-14 | 秦劳（上海）实业有限公司 | Octagon soil cement pile-formation machine |
| CN104878749B (en) * | 2015-06-05 | 2016-11-30 | 华北水利水电大学 | Octagon soil cement pile-formation machine |
| CN105156027B (en) | 2015-10-01 | 2017-08-22 | 中国石油集团西部钻探工程有限公司 | Torsion impact speed enhancing apparatus |
| CN105298381B (en) * | 2015-10-19 | 2017-06-06 | 西南石油大学 | The mud motor of efficient rock-breaking is realized using complex vibration impact |
| CN105275452B (en) * | 2015-11-20 | 2018-07-13 | 西南石油大学 | Vibration absorber with protection measurement while-drilling instrument function |
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| CN108053735B (en) * | 2017-07-13 | 2019-10-22 | 徐州工程学院 | Automatic erosion experiment apparatus |
| CN107905727A (en) * | 2017-12-23 | 2018-04-13 | 山东胜利石油装备产业技术研究院 | A kind of high speed broken rock drilling tool of double twisting actions |
| CN108060896B (en) * | 2018-01-24 | 2023-05-23 | 西南石油大学 | Mechanical downhole tool for realizing vertical drilling by utilizing screw cam |
| CN108360974B (en) * | 2018-04-12 | 2023-10-13 | 中国石油大学(北京) | Composite impact tool |
| CN110409999B (en) * | 2018-04-27 | 2020-10-20 | 中国石油化工股份有限公司 | Well drilling assisting tool |
| CN110374495A (en) * | 2019-08-26 | 2019-10-25 | 山东陆海石油技术股份有限公司 | A kind of high frequency circumferential direction impact type spiral drilling rig structure |
| CN112523739B (en) * | 2020-12-28 | 2021-11-16 | 西南石油大学 | Underground hydraulic drive spiral-cyclone coupling tube separator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9038744B2 (en) * | 2008-06-06 | 2015-05-26 | Coil Tubing Technology, Inc. | Jet hammer |
| CN101463709B (en) * | 2009-01-08 | 2011-03-23 | 西南石油大学 | Torsional impact drilling tool |
| CN101581196B (en) * | 2009-06-05 | 2012-01-11 | 李鹏飞 | Impacting helicoid hydraulic motor and transmission shaft assembly |
| CN102747958B (en) * | 2012-07-23 | 2015-01-07 | 中国石油大学(华东) | Compound vibrating well-drilling tool |
| CN104033113B (en) * | 2014-06-27 | 2016-01-27 | 西南石油大学 | One is spun helicoid hydraulic motor |
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2014
- 2014-11-28 CN CN201410708942.5A patent/CN104612582B/en not_active Expired - Fee Related
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Inventor after: Yang Yufeng Inventor before: Tian Jialin Inventor before: Yuan Changfu Inventor before: Yang Lin Inventor before: Li You Inventor before: Li Shuangshuang Inventor before: Yang Zhi Inventor before: Liu Gang Inventor before: Wu Chunming |
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Effective date of registration: 20180428 Address after: 050000 No. 31, South Second Ring Road West, Qiaoxi District, Shijiazhuang, Hebei Patentee after: Nanjin Da Energy Co., Ltd. Address before: 610500 Xindu Road, Xindu District, Chengdu, Sichuan Province, No. 8 Patentee before: Southwest Petroleum University |
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