CN108547571A - A kind of centering type torsion impact drilling tool - Google Patents

A kind of centering type torsion impact drilling tool Download PDF

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Publication number
CN108547571A
CN108547571A CN201810304742.1A CN201810304742A CN108547571A CN 108547571 A CN108547571 A CN 108547571A CN 201810304742 A CN201810304742 A CN 201810304742A CN 108547571 A CN108547571 A CN 108547571A
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China
Prior art keywords
jump bit
transmission shaft
shell
impact
fan
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CN201810304742.1A
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CN108547571B (en
Inventor
汤历平
王成涛
祝效华
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Southwest Petroleum University
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Southwest Petroleum University
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00Drives for drilling, used in the borehole
    • E21B4/06Down-hole impacting means, e.g. hammers
    • E21B4/14Fluid operated hammers
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00Drives for drilling, used in the borehole
    • E21B4/02Fluid rotary type drives

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  • 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 discloses a kind of centering type torsion impact drilling tools, mainly it is made of impact pipe nipple, shell, sealing ring, anti-chip off-falling, plug, spring, latch segment, jump bit, transmission shaft, thrust ball bearing, turbine stator, turbine rotor, stator pressure cap, rotor pressure cap and crossover sub, it is characterized in that the upper end of the transmission shaft is equipped with Upper cylindrical, its lower end is equipped with lower cylindrical, and the central shaft of Upper cylindrical and lower cylindrical is misaligned;The transmission shaft is equipped with the center overlapping of axles of middle part disk and the central shaft and middle part disk of the Upper cylindrical of transmission shaft;The jump bit is cross-section blocks, and jump bit is equipped with axial transmission circular hole;When by the jump bit loaded in lower cylindrical, the centre of form axis of the two is misaligned, i.e., jump bit is eccentric rotary around the rotation of the central shaft of lower cylindrical.The configuration of the present invention is simple is hardly damaged by jump bit and the impact unit that fan-shaped bump is formed, and can form the periodic torque pulse for improving efficiency of breaking rock.

Description

A kind of centering type torsion impact drilling tool
Technical field
The present invention relates to a kind of drilling tools, especially a kind of torsional pulse spudder for hard formation drilling speed Tool, belongs to mechanical engineering or drilling engineering technical field.
Background technology
Petroleum gas and daily life and industrial production are closely bound up.With the rapid development of the national economy, The whole world is also being continuously increased the consumption of petroleum resources.Currently, the country of China crude output declines for years, externally Interdependency is more than the Oil Safety limit.Nevertheless, but China still have larger oil residue yield, in face of the energy endanger The situation of machine aggravation accelerates the exploitation of China's petroleum resources to seem necessary and urgent.With the continuous progress of oil-gas mining, shallow-layer Petroleum resources are constantly reduced, and Deep Oil And Gas Exploration resources exploration becomes the important composition portion of long-term Oil & Gas Resources Development in China Point.However, deep formation is since stratum age is remote and bears larger crustal stress, generally existing rock strength and hardness it is high, The problems such as drillability is poor so that the rate of penetration of deep-well section is generally relatively low.
In the catalase of deep formation it is common in the world in recent years bore to improve efficiency of breaking rock by impact application Well speed-raising technology.In recent years, torsional pulse drilling technology is developed both at home and abroad, and a large amount of field application cases demonstrate the technology Advance for improving deep formation efficiency of breaking rock.Therefore, lot of domestic and foreign research unit carries out bores about torsional pulse The research of tool design, torsional pulse speed-raising mechanism study etc..Patent US6742609B2, CN101463709B, The structure that CN201554363U, CN201778652U etc. are reported, which is mainly formed by ratchet structure, impacts, its shortcoming is that spine Wheeled construction is more fragile, and abrasion or fracture are susceptible at shock.Patent US7096980B2, CN103628819B, The structure that CN102454346B etc. is reported then mainly by the liquid driven jump bit impact pipe nipple of different pressures cavity, Its shortcoming is that the sealing problem of the frictional resistance problem and tool between part.Based on problem of the existing technology, one is proposed The novel torsion impact drilling tool structure of kind is of great significance for the catalase of deep formation.
Invention content
It is an object of the invention in order to overcome above-mentioned difficult point, spy proposes a kind of centering type torsion impact drilling tool, for carrying The drilling efficiency of high deep formation or abrasive layer.
In order to achieve the above objectives, the present invention solve this technical problem the technical solution adopted is that:
A kind of centering type torsion impact drilling tool, mainly by impact pipe nipple, shell, sealing ring, anti-chip off-falling, plug, spring, locking Block, jump bit, transmission shaft, thrust ball bearing, turbine stator, turbine rotor, stator pressure cap, rotor pressure cap and crossover sub group At, it is characterised in that the inside of the impact pipe nipple upper end is equipped with fan-shaped cavity and fan-shaped bump, and fan-shaped cavity is rushed for placing Hammer, fan-shaped bump are used to absorb impact the shock of hammer;The middle part of the impact pipe nipple is equipped with the endoporus being connected to fan-shaped cavity, Its middle part outside is equipped with the impact pipe nipple groove for placing anti-chip off-falling, and lower end is internally provided with the impact pipe nipple spiral shell being connect with drill bit Line, lower end outside are equipped with the impact pipe nipple spline coupled with shell;The shell lower end is equipped with the shell coupled with impact pipe nipple Body spline is equipped with the housing groove for the effect of anti-chip off-falling in the shell spline upper end of inner walls;The upper end of the transmission shaft Equipped with Upper cylindrical, lower end is equipped with lower cylindrical, and the central shaft of Upper cylindrical and lower cylindrical is misaligned;The transmission shaft is set The center overlapping of axles for having middle part disk and the central shaft and middle part disk of the Upper cylindrical of transmission shaft, on the middle part disk of transmission shaft Equipped with the recirculation hole excessively along its axis direction;The jump bit is cross-section blocks, and jump bit is equipped with axial transmission circular hole; When by the jump bit loaded in lower cylindrical, the centre of form axis of the two is misaligned, i.e. central shaft of the jump bit around lower cylindrical Rotation be eccentric rotary;It is equipped with thrust ball bearing between the top and the middle part disk of transmission shaft of the impact pipe nipple;The shell Bearing step is equipped in the middle part of internal wall, turbine stator is placed on the bearing step of inner walls and is compressed by stator pressure cap; The Upper cylindrical of the transmission shaft passes through turbine rotor, turbine rotor to be fixed on transmission shaft by rotor pressure cap;It is described Crossover sub lower end is connect with shell, and upper end is connect with drill collar or power drilling tool;When the transmission shaft is installed in shell, pass The Upper cylindrical of moving axis and the central shaft of middle part disk with the center overlapping of axles of shell;When drilling fluid enters brill by crossover sub When tool, turbine rotor drives transmission shaft rotation so that the lower cylindrical of transmission shaft does revolution motion, lower part around the central shaft of shell Cylinder drives jump bit rotation, the jump bit of eccentric rotary to hit fan-shaped bump far from the part of axial transmission circular hole, impacting Jump bit around lower cylindrical high-speed rotation and makes part of the jump bit far from axial transmission circular hole avoid fan-shaped bump under force effect Obstruction, when jump bit bypass fan-shaped bump after due to its around lower cylindrical eccentric rotary and lower cylindrical around drilling tool center The collective effect of axis revolution motion, the part of the jump bit of eccentric rotary far from axial transmission circular hole is under the influence of centrifugal force again Secondary separate drilling tool centre of form axis is simultaneously prepared to hit fan-shaped bump next time;The transmission shaft makees week under the driving of turbine rotor Phase rotates so that fan-shaped bump of the jump bit on torsional direction periodically impact pipe nipple, it is periodic to be formed Torque pulse simultaneously reaches drill bit through impacting pipe nipple.
Compared with prior art, the invention has the advantages that:(1)This torsion impact drilling tool is by jump bit under The eccentric rotary and lower cylindrical of portion's cylinder make jump bit in torsional direction around the collective effect of drilling tool central shaft revolution motion The periodically fan-shaped bump on impact pipe nipple, to form periodic torque pulse and reach brill through impacting pipe nipple Head;(2)Turbine types or model in this structure can be changed to change impact in requirement according to situ of drilling well to frequency of impact Frequency can also increase the quantity of fan-shaped bump so that transmission shaft per revolution can be formed repeatedly above impact pipe nipple It hits;This is simple in structure, without electronic component, and the influence to drill column structure is smaller.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of centering type torsion impact drilling tool of the present invention;
Fig. 2 is a kind of structural schematic diagram of the impact pipe nipple of centering type torsion impact drilling tool of the present invention;
Fig. 3 is a kind of half-section diagram of the shell of centering type torsion impact drilling tool of the present invention;
Fig. 4 is a kind of structural schematic diagram of the jump bit of centering type torsion impact drilling tool of the present invention;
Fig. 5 is a kind of structural schematic diagram of the transmission shaft of centering type torsion impact drilling tool of the present invention;
Fig. 6 is the A-A diagrammatic cross-sections of Fig. 1;
Fig. 7 is the B-B diagrammatic cross-sections of Fig. 1, and the jump bit of the wherein lower cylindrical driving of transmission shaft is hit with fan-shaped bump Restore centrifugal movement state afterwards;
Fig. 8 is the B-B diagrammatic cross-sections of Fig. 1, the lower cylindrical of wherein transmission shaft goes to fan-shaped bump opposite and jump bit do from The heart moves;
Fig. 9 is the B-B diagrammatic cross-sections of Fig. 1, and wherein the lower cylindrical of transmission shaft far from fan-shaped bump from becoming close to fan-shaped convex Bulk state and jump bit does centrifugal movement;
Figure 10 is the B-B diagrammatic cross-sections of Fig. 1, and wherein jump bit is in the position for hitting fan-shaped bump;
Figure 11 is the B-B diagrammatic cross-sections of Fig. 1, and wherein jump bit is in the position hit and rebounded after fan-shaped bump;
Figure 12 is the C-C diagrammatic cross-sections of Fig. 1;
Figure 13 is the D-D diagrammatic cross-sections of Fig. 1.
In figure:1. pipe nipple is impacted, 101. fan-shaped cavities, 102. fan-shaped bumps, 103. endoporus, 104. impact pipe nipple grooves, 105. short-section thread is impacted, 106. impact pipe nipple splines, 2. shells, 201. shell splines, 202. housing grooves, 203. supporting stations Rank, 3. sealing rings, 4. anti-chip off-fallings, 5. plugs, 6. springs, 7. latch segments, 8. jump bits, 801. axial transmission circular holes, 9. transmissions Axis, 901. Upper cylindricals, 902. lower cylindricals, 903. middle part disks, 904. cross recirculation hole, 10. thrust ball bearings, 11. turbines Stator, 12. turbine rotors, 13. stator pressure caps, 14. rotor pressure caps, 15. crossover subs.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in Fig. 1-Figure 13, a kind of centering type torsion impact drilling tool, mainly by impact pipe nipple 1, shell 2, sealing ring 3, Anti- chip off-falling 4, plug 5, spring 6, latch segment 7, jump bit 8, transmission shaft 9, thrust ball bearing 10, turbine stator 11, turbine rotor 12, stator pressure cap 13, rotor pressure cap 14 and crossover sub 15 form, it is characterised in that are set on the inside of 1 upper end of impact pipe nipple There are fan-shaped cavity 101 and fan-shaped bump 102, fan-shaped cavity 101 is for placing jump bit 8, and fan-shaped bump 102 is for absorbing impact The shock of hammer 8;The middle part of the impact pipe nipple 1 is equipped with the endoporus 103 being connected to fan-shaped cavity 101, and middle part outside is equipped with peace Put the impact pipe nipple groove 104 of anti-chip off-falling 4, lower end is internally provided with the impact short-section thread 105 being connect with drill bit, outside lower end Portion is equipped with the impact pipe nipple spline 106 coupled with shell 2;2 lower end of the shell is equipped with the shell spline coupled with impact pipe nipple 1 201, the housing groove 202 acted on for anti-chip off-falling 4 is equipped in 201 upper end of shell spline of 2 inner wall of shell;The transmission shaft 9 Upper end be equipped with Upper cylindrical 901, lower end be equipped with lower cylindrical 902, the central shaft of Upper cylindrical 901 and lower cylindrical 902 It is misaligned;The transmission shaft 9 is equipped with the central shaft and middle part disk 903 of middle part disk 903 and the Upper cylindrical 901 of transmission shaft 9 Center overlapping of axles, the middle part disk 903 of transmission shaft 9 is equipped with crosses recirculation hole 904 along its axis direction;The jump bit 8 For cross-section blocks, jump bit 8 is equipped with axial transmission circular hole 801;It is loaded in lower cylindrical 902 when by the jump bit 8 When, the centre of form axis of the two is misaligned, i.e., jump bit 8 is eccentric rotary around the rotation of the central shaft of lower cylindrical 902;The impact Thrust ball bearing 10 is equipped between the top of pipe nipple 1 and the middle part disk 903 of transmission shaft 9;Bearing is equipped in the middle part of 2 inner wall of the shell Step 203, turbine stator 11 are placed on the bearing step 203 of 2 inner wall of shell and are compressed by stator pressure cap 13;The transmission The Upper cylindrical 901 of axis 9 passes through turbine rotor 12, turbine rotor 12 to be fixed on transmission shaft 9 by rotor pressure cap 14;Institute It states 15 lower end of crossover sub to connect with shell 2, upper end is connect with drill collar or power drilling tool;When the transmission shaft 9 is installed on shell 2 When interior, the Upper cylindrical 901 of transmission shaft 9 and the central shaft of middle part disk 903 with the center overlapping of axles of shell 2.
As shown in Fig. 7-Figure 11, when drilling fluid enters drilling tool by crossover sub 15, turbine rotor 12 drives 9 turns of transmission shaft It is dynamic so that the lower cylindrical 902 of transmission shaft 9 does revolution motion around the central shaft of shell 2, and lower cylindrical 902 drives 8 turns of jump bit Dynamic, the jump bit 8 of eccentric rotary hits fan-shaped bump 102 far from the part of axial transmission circular hole 801, in impact force action undershoot Hammer 8 is around 902 high-speed rotation of lower cylindrical and part of the jump bit 8 far from axial transmission circular hole 801 is made to avoid fan-shaped bump 102 Obstruction, when jump bit 8 bypass fan-shaped bump 102 after since it is around the eccentric rotary and lower cylindrical 902 of lower cylindrical 902 Around the collective effect of drilling tool central shaft revolution motion, the jump bit 8 of eccentric rotary far from the part of axial transmission circular hole 801 from It prepares again far from drilling tool centre of form axis and to hit fan-shaped bump 102 next time under the action of mental and physical efforts;The transmission shaft 9 is in whirlpool It takes turns and makees period rotation under the driving of rotor 12 so that sector of the jump bit 8 on torsional direction periodically impact pipe nipple 1 Convex block 102, to form periodic torque pulse and reach drill bit through impacting pipe nipple 1.
As shown in Fig. 7-Figure 11, in the operation process of the torsion impact drilling tool, the movement of jump bit 8 is a kind of compound Lower cylindrical 902 is also around the center shaft rotation of shell 2 while movement, i.e. jump bit 8 are rotated around the lower cylindrical 902 of transmission shaft 9 It is dynamic;After jump bit 8 hits fan-shaped bump 102 clockwise, jump bit 8 rebounds and is rotated counterclockwise around lower cylindrical 902 immediately, Under the action of the centrifugal force of lower cylindrical 902 and jump bit 8 itself, jump bit 8 bypass just continue to do after fan-shaped bump 102 from The heart moves, until jump bit 8 next time is hit with fan-shaped bump 102;Under action of a fluid, turbine rotor 12 persistently drives Transmission shaft 9 rotates and jump bit 8 is driven periodically to hit fan-shaped bump 102, periodic to be formed on impact pipe nipple 1 Torsional pulse.
As shown in figure 12, when the torsion impact drilling tool is installed, first anti-chip off-falling 4 is pressed into impact pipe nipple groove 104, After shell spline 201 coordinates with impact pipe nipple spline 106, housing groove 202 is located at same height with impact pipe nipple groove 104 Degree, anti-chip off-falling 4 are affixed to the wall surface of housing groove 202 under the action of spring 6;When drill bit or impact pipe nipple 1 bear drag force, Anti- chip off-falling 4 by bear shear action and prevent impact pipe nipple 1 and shell 2 separation;Plug 5 is installed on by screw thread on shell 1; When needing to dismantle the torsion impact drilling tool, plug 5 is removed from shell 2, it will by the aperture of installed plug 5 Anti- chip off-falling 4 pushes away the effect for avoiding anti-chip off-falling 4 to housing groove 202 inside, and shell 2 is extracted out just from impact pipe nipple 1 It can complete the dismounting of the two.
As shown in figure 13,1 lower end of impact pipe nipple is equipped with 4 impact pipe nipple splines 106 and 4 splines, shell spline 201 Coordinate with the spline of impact pipe nipple 1, exists along torsional direction between the two after impact pipe nipple 1 and shell 2 are by spline fitted 5o-10o relative rotation.
The range that specific implementation mode described above is used to illustrate the present invention without limiting the present invention, the skill of any this field Art personnel equivalent variations and modification made under the premise of not departing from design and the principle of the present invention, belong to present system Protection domain.

Claims (1)

1. a kind of centering type torsion impact drilling tool, mainly by impact pipe nipple(1), shell(2), sealing ring(3), anti-chip off-falling(4), it is stifled Head(5), spring(6), latch segment(7), jump bit(8), transmission shaft(9), thrust ball bearing(10), turbine stator(11), turbine Rotor(12), stator pressure cap(13), rotor pressure cap(14)And crossover sub(15)Composition, it is characterised in that the impact pipe nipple (1)The inside of upper end is equipped with fan-shaped cavity(101)And fan-shaped bump(102), fan-shaped cavity(101)For placing jump bit(8), Fan-shaped bump(102)For absorbing impact hammer(8)Shock;The impact pipe nipple(1)Middle part be equipped with and fan-shaped cavity(101) The endoporus of connection(103), middle part outside, which is equipped with, places anti-chip off-falling(4)Impact pipe nipple groove(104), lower end is internally provided with The impact short-section thread being connect with drill bit(105), lower end outside is equipped with and shell(2)The impact pipe nipple spline of coupling(106); The shell(2)Lower end is equipped with and impact pipe nipple(1)The shell spline of coupling(201), in shell(2)The shell spline of inner wall (201)Upper end, which is equipped with, is used for anti-chip off-falling(4)The housing groove of effect(202);The transmission shaft(9)Upper end be equipped with Upper cylindrical (901), lower end is equipped with lower cylindrical(902), Upper cylindrical(901)And lower cylindrical(902)Central shaft it is misaligned;It is described Transmission shaft(9)Equipped with middle part disk(903)And transmission shaft(9)Upper cylindrical(901)Central shaft and middle part disk(903)'s Center overlapping of axles, transmission shaft(9)Middle part disk(903)It is equipped with and crosses recirculation hole along its axis direction(904);The impact Hammer(8)For cross-section blocks, jump bit(8)It is equipped with axial transmission circular hole(801);When by the jump bit(8)It is loaded on down Portion's cylinder(902)When upper, the centre of form axis of the two is misaligned, i.e. jump bit(8)Around lower cylindrical(902)The rotation of central shaft be Eccentric rotary;The impact pipe nipple(1)Top and transmission shaft(9)Middle part disk(903)Between be equipped with thrust ball bearing(10); The shell(2)Bearing step is equipped in the middle part of inner wall(203), turbine stator(11)It is placed in shell(2)The bearing step of inner wall (203)Above and pass through stator pressure cap(13)It compresses;The transmission shaft(9)Upper cylindrical(901)Across turbine rotor(12), whirlpool Take turns rotor(12)Pass through rotor pressure cap(14)It is fixed in transmission shaft(9)On;The crossover sub(15)Lower end and shell(2) Connection, upper end is connect with drill collar or power drilling tool;When the transmission shaft(9)It is installed on shell(2)When interior, transmission shaft(9)It is upper Portion's cylinder(901)With middle part disk(903)Central shaft and shell(2)Center overlapping of axles;When drilling fluid is by crossover sub (15)When into drilling tool, turbine rotor(12)Drive transmission shaft(9)Rotation so that transmission shaft(9)Lower cylindrical(902)Around shell Body(2)Central shaft do revolution motion, lower cylindrical(902)Drive jump bit(8)Rotation, the jump bit of eccentric rotary(8)Far Off axis to transmission circular hole(801)Part hit fan-shaped bump(102), the jump bit under impact force action(8)Around lower cylindrical (902)High-speed rotation simultaneously makes jump bit(8)Far from axial transmission circular hole(801)Part avoid fan-shaped bump(102)Obstruction, Work as jump bit(8)Around fan-shaped bump(102)Afterwards since it is around lower cylindrical(902)Eccentric rotary and lower cylindrical (902)Around the collective effect of drilling tool central shaft revolution motion, the jump bit of eccentric rotary(8)Far from axial transmission circular hole(801) Part under the influence of centrifugal force again far from drilling tool centre of form axis and to hit fan-shaped bump next time(102)It prepares;Institute State transmission shaft(9)In turbine rotor(12)Driving under make period rotation so that jump bit(8)It is periodically hit in torsional direction Hit impact pipe nipple(1)On fan-shaped bump(102), to form periodic torque pulse and through impacting pipe nipple(1)Reach brill Head.
CN201810304742.1A 2018-04-08 2018-04-08 A kind of centering type torsion impact drilling tool Active CN108547571B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109162634A (en) * 2018-10-08 2019-01-08 北京工业大学 High frequency axial pulse percussion drilling tool
CN109555471A (en) * 2018-11-21 2019-04-02 中国石油大学(华东) A kind of rotation type torsion impact generating device and its working method
CN112627721A (en) * 2020-12-19 2021-04-09 李永和 Continuous axial impact rock breaking hammer
CN113756708A (en) * 2020-06-04 2021-12-07 中石化石油工程技术服务有限公司 Eccentric vibrating type hydraulic pulse generating device

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Publication number Priority date Publication date Assignee Title
CN201554363U (en) * 2009-12-20 2010-08-18 西南石油大学 Turbine type torsion impact drilling tool for hard formation
CN201778652U (en) * 2010-09-20 2011-03-30 西南石油大学 Low-amplitude and high-frequency torsional pulse generator
CN106121513A (en) * 2016-07-05 2016-11-16 西南石油大学 A kind of composite impact drilling tool
US20170067320A1 (en) * 2015-09-04 2017-03-09 Weatherford Technology Holdings, Llc Combined multi-coupler for top drive
CN105201403B (en) * 2015-09-06 2017-09-05 四川省贝特石油技术有限公司 Autonomous type perseverance turns round constant pressure efficient rock-breaking instrument
CN206942656U (en) * 2017-03-31 2018-01-30 西南石油大学 Drilling tool with axial waterpower pulse and circumferential percussion

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201554363U (en) * 2009-12-20 2010-08-18 西南石油大学 Turbine type torsion impact drilling tool for hard formation
CN201778652U (en) * 2010-09-20 2011-03-30 西南石油大学 Low-amplitude and high-frequency torsional pulse generator
US20170067320A1 (en) * 2015-09-04 2017-03-09 Weatherford Technology Holdings, Llc Combined multi-coupler for top drive
CN105201403B (en) * 2015-09-06 2017-09-05 四川省贝特石油技术有限公司 Autonomous type perseverance turns round constant pressure efficient rock-breaking instrument
CN106121513A (en) * 2016-07-05 2016-11-16 西南石油大学 A kind of composite impact drilling tool
CN206942656U (en) * 2017-03-31 2018-01-30 西南石油大学 Drilling tool with axial waterpower pulse and circumferential percussion

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109162634A (en) * 2018-10-08 2019-01-08 北京工业大学 High frequency axial pulse percussion drilling tool
CN109555471A (en) * 2018-11-21 2019-04-02 中国石油大学(华东) A kind of rotation type torsion impact generating device and its working method
CN113756708A (en) * 2020-06-04 2021-12-07 中石化石油工程技术服务有限公司 Eccentric vibrating type hydraulic pulse generating device
CN112627721A (en) * 2020-12-19 2021-04-09 李永和 Continuous axial impact rock breaking hammer
CN112627721B (en) * 2020-12-19 2022-11-01 盘锦卓汇钻井技术开发有限责任公司 Continuous axial impact rock breaking hammer

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