CN106121513A - A kind of composite impact drilling tool - Google Patents

A kind of composite impact drilling tool Download PDF

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Publication number
CN106121513A
CN106121513A CN201610517418.9A CN201610517418A CN106121513A CN 106121513 A CN106121513 A CN 106121513A CN 201610517418 A CN201610517418 A CN 201610517418A CN 106121513 A CN106121513 A CN 106121513A
Authority
CN
China
Prior art keywords
impact
jump bit
pipe nipple
housing
block
Prior art date
Application number
CN201610517418.9A
Other languages
Chinese (zh)
Inventor
祝效华
汤历平
童华
石昌帅
Original Assignee
西南石油大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 西南石油大学 filed Critical 西南石油大学
Priority to CN201610517418.9A priority Critical patent/CN106121513A/en
Publication of CN106121513A publication Critical patent/CN106121513A/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00Drives for drilling, used in the borehole
    • E21B4/16Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units

Abstract

The invention discloses a kind of composite impact drilling tool, mainly it is made up of impact pipe nipple, housing, anti-lost piece, nut, radial spring, sealing ring, jump bit, axle spring, impacting shaft, thrust bearing, dead axle, turbine stator, turbine rotor, stator pressure cap, rotor pressure cap and adapter, it is characterized in that the top of described impact pipe nipple is provided with and hold collision block, this holds collision block and is provided with the inclined-plane clashed into for the hammer that withstands shocks;Described jump bit bottom is provided with impact block, and this impact block is provided with the inclined-plane holding collision block for impact pipe nipple, and jump bit top is provided with through hole and through hole is provided with rectangular flower keyway;Described impacting shaft is provided with rectangular spline, and the lower end of impacting shaft is provided with disc step;It is provided with step in the middle of described housing and is provided with axle spring between the lower surface of casing step and the upper surface of jump bit.The present invention can produce the torque pulse of circumference and axial axle power pulse simultaneously, can be used for drill bit auxiliary rock thus improves drilling efficiency.

Description

A kind of composite impact drilling tool

Technical field

The present invention relates to a kind of drilling tool, a kind of composite impact spudder for hard formation drilling speed Tool, belongs to mechanical engineering or drilling engineering technical field.

Background technology

Petroleum resources in stratum is based on certain drilling technique, is formed well exploitation in the earth formation by well system Out, this well system includes that derrick and top are driven and waits ground installation and the underground equipment such as drilling rod and drill bit.Well head energy by The rotating disk input DRILL-STRING SYSTEM persistently rotated, this energy is reached the drill bit in shaft bottom by drill string by well head, and drill bit is at lower drilling tool Weight and drill string moment of torsion under directly act on stratum, scrape and cut rock and form well, the broken landwaste of drill bit is by drilling well Liquid is taken pit shaft out of and is completed drilling process.

Along with constantly carrying out of petroleum resources exploitation, the quantity of deep & ultra-deep well incrementally increases.Under normal circumstances, with well depth Increase, rock strength increase and drillability be deteriorated, drill bit breaks rock energy requirement increase makes drilling efficiency reduce;On the other hand, Owing to drill string has the characteristic of big L/D ratio, its rigidity is the least, and under the inhibition on stratum, DRILL-STRING SYSTEM is easy to generation and shakes Dynamic, including longitudinally, laterally and twisting vibration.When producing vibration at drill bit, speed and acceleration are the highest, this vibration meeting Cause the energy dissipation at drill bit, be also easy to cause the premature failure of lower drilling tool and affect wellbore quality, affect brill further Well efficiency and development cost.

The well dynamic instrument such as helicoid hydraulic motor and turbodrill can be used for the moment of torsion at increase drill bit thus improves drilling well effect Rate.But, along with the increase of well depth, the pump pressure ability of wellhead equipment limits the application in deep-well of these instruments.Existing grind Study carefully and show, act on the high-frequency percussion load on drill bit and can accelerate catalase and slow down drillstring vibrations, and realize drilling efficiency Raising.Existing percussion drilling mainly includes two classes: a class is axial impact, such as hydraulic impacter;Another kind of for reversing punching Hit, such as reverse impactor.Since axial impact and torsional pulse can accelerate drill bit efficiency of breaking rock, then how by both The composite impact drilling tool that function combines formation practical is difficult point place.

Summary of the invention

It is an object of the invention to overcome above-mentioned difficult point, a kind of composite impact drilling tool of special proposition, it is used for improving Deep formation or the drilling efficiency of hard formation.

For reaching above-mentioned purpose, the present invention solves this technical problem and the technical scheme is that

A kind of composite impact drilling tool, mainly by impact pipe nipple, housing, anti-lost piece, nut, radial spring, sealing ring, Jump bit, axle spring, impacting shaft, thrust bearing, dead axle, turbine stator, turbine rotor, stator pressure cap, rotor pressure cap and turn Changing-over head forms, it is characterised in that the top of described impact pipe nipple is provided with holds collision block, and this holds collision block and is provided with for withstanding shocks The inclined-plane that hammer clashes into;Described jump bit bottom is provided with impact block, and this impact block is provided with and holds collision block for impact pipe nipple Inclined-plane, jump bit top is provided with through hole and through hole is provided with rectangular flower keyway;Described impacting shaft is provided with rectangular spline, impact The lower end of axle is provided with disc step;Step and the upper end in the lower surface of casing step Yu jump bit it is provided with in the middle of described housing Axle spring it is provided with between face.

Described a kind of composite impact drilling tool, it is characterised in that described impact pipe nipple hold collision block quantity be one or Person two, the impact block quantity of jump bit is one or two.

Described a kind of composite impact drilling tool, it is characterised in that the rectangular flower keyway of described jump bit and impacting shaft Rectangular spline matched in clearance;The disc step of described impacting shaft lower end is used for preventing jump bit from coming off downwards.

Described a kind of composite impact drilling tool, it is characterised in that described impact pipe nipple is with housing lower end by spline even Connecing, the moment of torsion i.e. transmitted by drill string and the pressure of the drill are all acted on impact pipe nipple by the spline of housing lower end;Described housing upper end It is connected with adapter by screw thread.

Described a kind of composite impact drilling tool, it is characterised in that be equipped with housing lower end in the middle of described impact pipe nipple Groove, anti-lost piece be positioned between two grooves and by radial spring push housing to by anti-lost piece thus prevent impact pipe nipple from shell Depart from body;Described radial spring is in compressive state.

Described a kind of composite impact drilling tool, it is characterised in that described turbine stator is fixed by stator pressure cap In housing, stator pressure cap is connected with housing by screw thread;Described turbine rotor is fixed on dead axle by rotor pressure cap, Rotor pressure cap is connected with dead axle by screw thread;Described dead axle is threaded connection with impacting shaft, and dead axle lower end is provided with step;Institute State and be provided with thrust bearing for supporting dead axle between casing step upper end and dead axle step lower end.

Described a kind of composite impact drilling tool, it is characterised in that when drilling fluid flows into instrument, turbine rotor is at stream Rotate clockwise under body effect.

Described a kind of composite impact drilling tool, it is characterised in that impact pipe nipple is provided with o-ring groove and impacts short Joint is sealed by sealing ring with housing.

Described a kind of composite impact drilling tool, its method of work is that described adapter is connected with upper drilling string, Drilling fluid is flowed into instrument by adapter and drives turbine rotor to rotate clockwise, owing to turbine rotor is pressed on dead axle, because of This dead axle also will rotate with turbine rotor;Dead axle drives impacting shaft to rotate relative to housing, due to impacting shaft and jump bit Being connected by spline, therefore drive jump bit is also rotated clockwise by impacting shaft;Impact pipe nipple is relative to housing at circumferencial direction only Can minor rotation;Collision block is held once or twice on jump bit per revolution just impact pipe nipple, and at impact pipe nipple Upper generation high frequency torsional pulse, the drill bit that this high frequency torsional pulse is directly transferred in creeping into is for auxiliary rock;At jump bit and Impact pipe nipple knockout process in, jump bit move axially upward so that jump bit impact block impact pipe nipple hold collision block Upper slip, in this course jump bit compression axle spring, when the impact block of jump bit is sliding from holding collision block of impact pipe nipple Time de-, jump bit moves downward under the effect of self gravitation and axle spring restoring force;Along with the continuous rotation of jump bit, Jump bit periodically impact pipe nipple, thus form periodic shock pulse;Impact block and impact due to jump bit The collision block that holds of pipe nipple is that inclined-plane clashes into, and therefore the existing torsional component of impulsive force suffered by impact pipe nipple has again axial thrust load.

Compared with prior art, the invention have the advantages that: (1) present invention can produce periodic composite impact Pulse, can be used for improving drilling efficiency;(2) present configuration is simple, length is little, without electronic devices and components, easily operation and under Portion's drilling tool impact is little.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention a kind of composite impact drilling tool;

Fig. 2 is the structural representation of the jump bit of the present invention a kind of composite impact drilling tool;

Fig. 3 is the schematic cross-section of the anti-lost unit of the present invention a kind of composite impact drilling tool;

In figure: 1. impact pipe nipple, 2. housing, the most anti-lost piece, 4. nut, 5. radial spring, 6. sealing ring, 7. jump bit, 8. axle spring, 9. impacting shaft, 10. thrust bearing, 11. dead axles, 12. turbine stators, 13. turbine rotors, 14. stator pressure caps, 15. rotor pressure caps, 16. adapteres.

Detailed description of the invention

The present invention will be further described below in conjunction with the accompanying drawings.

As depicted in figs. 1 and 2, a kind of composite impact drilling tool, mainly by impact pipe nipple 1, housing 2, anti-lost piece 3, spiral shell Cap 4, radial spring 5, sealing ring 6, jump bit 7, axle spring 8, impacting shaft 9, thrust bearing 10, dead axle 11, turbine stator 12, Turbine rotor 13, stator pressure cap 14, rotor pressure cap 15 and adapter 16 form, it is characterised in that the top of described impact pipe nipple 1 End is provided with and holds collision block, and this holds collision block and is provided with the inclined-plane for hammer 7 shock that withstands shocks;Described jump bit 7 bottom is provided with impact Block, this impact block is provided with the inclined-plane holding collision block for impact pipe nipple 1, and jump bit 7 top is provided with on through hole and through hole It is provided with rectangular flower keyway;Described impacting shaft 9 is provided with rectangular spline, and the lower end of impacting shaft 9 is provided with disc step;Described housing It is provided with step and is provided with axle spring 8 between the lower surface of housing 2 step and the upper surface of jump bit 7 in the middle of 2.

Described a kind of composite impact drilling tool, it is characterised in that the collision block quantity of holding of described impact pipe nipple 1 is one Or two, the impact block quantity of jump bit 7 is one or two.

Described a kind of composite impact drilling tool, it is characterised in that the rectangular flower keyway of described jump bit 7 and impacting shaft 9 Rectangular spline matched in clearance;The disc step of described impacting shaft 9 lower end is used for preventing jump bit 7 from coming off downwards.

Described a kind of composite impact drilling tool, it is characterised in that described impact pipe nipple 1 passes through spline with housing 2 lower end Connecting, the moment of torsion i.e. transmitted by drill string and the pressure of the drill are all acted on impact pipe nipple 1 by the spline of housing 2 lower end;Described housing 2 Upper end is connected with adapter 16 by screw thread.

As it is shown on figure 3, described a kind of composite impact drilling tool, it is characterised in that described impact pipe nipple 1 centre and shell Body 2 lower end is equipped with groove, be positioned between two grooves for anti-lost piece 3 and by radial spring 5 anti-lost piece 3 is pushed to housing 2 from And prevent impacting pipe nipple 1 and depart from from housing 2;Described radial spring 5 is in compressive state.

Described a kind of composite impact drilling tool, it is characterised in that described turbine stator 12 is compressed by stator pressure cap 14 Being fixed in housing 2, stator pressure cap 14 is connected with housing 2 by screw thread;Described turbine rotor 13 is compressed by rotor pressure cap 15 Being fixed on dead axle 11, rotor pressure cap 15 is connected with dead axle 11 by screw thread;Described dead axle 11 is with impacting shaft 9 by screw thread even Connecing, dead axle 11 lower end is provided with step;Be provided with between described housing 2 step upper end and dead axle 11 step lower end thrust bearing 10 for Support dead axle 11.

Described a kind of composite impact drilling tool, it is characterised in that when drilling fluid flows into instrument, turbine rotor 13 exists Rotate clockwise under fluid matasomatism.

Described a kind of composite impact drilling tool, it is characterised in that impact pipe nipple 1 is provided with o-ring groove and impact Pipe nipple 1 is sealed by sealing ring 6 with housing 2.

As it is shown in figure 1, described a kind of composite impact drilling tool, its method of work is that described adapter 16 is with upper Portion's drill string connects, and drilling fluid is flowed into instrument by adapter 16 and drives turbine rotor 13 to rotate clockwise, due to turbine rotor 13 are pressed on dead axle 11, and therefore dead axle 11 also will rotate clockwise with turbine rotor 13;Dead axle 11 drives impacting shaft 9 phase Rotating for housing 2, owing to impacting shaft 9 is connected by spline with jump bit 7, therefore impacting shaft 9 also will drive jump bit 7 together Rotate clockwise;The impact relative housing 2 of pipe nipple 1 is only capable of minor rotation at circumferencial direction;Jump bit 7 per revolution just clashes into punching Hit and hold collision block once or twice on pipe nipple 1, and produce high frequency torsional pulse, this high frequency torsional pulse on impact pipe nipple 1 The drill bit being directly transferred in creeping into is for auxiliary rock;In jump bit 7 and impact pipe nipple 1 knockout process, jump bit 7 is vertically Moving upward so that the impact block of jump bit 7 slides on collision block holding of impact pipe nipple 1, jump bit 7 is pressed in this course Contracting axle spring, when jump bit 7 impact block from impact pipe nipple 1 hold slip collision block time, jump bit 7 at self gravitation and Move downward under the effect of axle spring 8 restoring force;Along with the continuous rotation of jump bit 7, jump bit 7 periodically impact Pipe nipple 1, thus form periodic shock pulse;Due to jump bit 7 impact block with impact pipe nipple 1 the collision block that holds be that inclined-plane hits Hitting, therefore the existing torsional component of impulsive force suffered by impact pipe nipple 1 has again axial thrust load.

The above detailed description of the invention is for the scope illustrated the present invention without limiting the present invention, the skill of any this area Equivalent variations that art personnel are done under without departing from the design of the present invention and principle premise and amendment, belong to present system Protection domain.

Claims (3)

1. a composite impact drilling tool, mainly by impact pipe nipple (1), housing (2), anti-lost piece (3), nut (4), radially bullet Spring (5), sealing ring (6), jump bit (7), axle spring (8), impacting shaft (9), thrust bearing (10), dead axle (11), turbine are fixed Son (12), turbine rotor (13), stator pressure cap (14), rotor pressure cap (15) and adapter (16) composition, it is characterised in that institute The top stating impact pipe nipple (1) is provided with and holds collision block, and this holds collision block and is provided with the inclined-plane clashed into for the hammer (7) that withstands shocks;Described Jump bit (7) bottom is provided with impact block, and this impact block is provided with the inclined-plane holding collision block for impact pipe nipple (1), impact Hammer (7) top is provided with through hole and through hole is provided with rectangular flower keyway;Described impacting shaft (9) is provided with rectangular spline, impacting shaft (9) Lower end be provided with disc step;It is provided with step and at the lower surface of housing (2) step and jump bit in the middle of described housing (2) (7) axle spring (8) it is provided with between upper surface.
A kind of composite impact drilling tool the most according to claim 1, it is characterised in that described holding of impact pipe nipple (1) is hit Number of blocks is one or two, and the impact block quantity of jump bit (7) is one or two.
A kind of composite impact drilling tool the most according to claim 1, it is characterised in that the rectangular flower of described jump bit (7) Keyway and the rectangular spline matched in clearance of impacting shaft (9);The disc step of described impacting shaft (9) lower end is used for preventing jump bit (7) come off downwards.
CN201610517418.9A 2016-07-05 2016-07-05 A kind of composite impact drilling tool CN106121513A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106593296A (en) * 2016-12-15 2017-04-26 中国石油天然气股份有限公司 Underground double-acting accelerator
CN106593306A (en) * 2016-12-28 2017-04-26 倪红坚 Multi-dimension impactor
CN106761387A (en) * 2016-12-28 2017-05-31 倪红坚 A kind of drill string for exciting multidimensional to impact connection pipe nipple
CN108547571A (en) * 2018-04-08 2018-09-18 西南石油大学 A kind of centering type torsion impact drilling tool
CN108692903A (en) * 2018-05-16 2018-10-23 长江大学 For micro- experimental provision for boring experiment to micro- PDC drill bit application torsional pulse
CN108798502A (en) * 2018-07-03 2018-11-13 西南石油大学 Screw composite impact device
CN109915012A (en) * 2019-04-23 2019-06-21 西南石油大学 Hydraulic longitrorse coupled surge device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU542814A1 (en) * 1975-10-06 1977-01-15 Тюменский индустриальный институт Device for percussion rotary drilling
CN201778652U (en) * 2010-09-20 2011-03-30 西南石油大学 Low-amplitude and high-frequency torsional pulse generator
CN201874474U (en) * 2010-12-09 2011-06-22 西南石油大学 Anti-falling device under novel torsional-impact drilling tool
CN102747958A (en) * 2012-07-23 2012-10-24 中国石油大学(华东) Compound vibrating well-drilling tool
CN104847259A (en) * 2015-04-13 2015-08-19 刘永旺 Rotating impact acceleration device and method of power drilling tool
RU2565316C1 (en) * 2014-05-21 2015-10-20 Общество с ограниченной ответственностью "Фирма "Радиус-Сервис" Oscillator for drill string

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU542814A1 (en) * 1975-10-06 1977-01-15 Тюменский индустриальный институт Device for percussion rotary drilling
CN201778652U (en) * 2010-09-20 2011-03-30 西南石油大学 Low-amplitude and high-frequency torsional pulse generator
CN201874474U (en) * 2010-12-09 2011-06-22 西南石油大学 Anti-falling device under novel torsional-impact drilling tool
CN102747958A (en) * 2012-07-23 2012-10-24 中国石油大学(华东) Compound vibrating well-drilling tool
RU2565316C1 (en) * 2014-05-21 2015-10-20 Общество с ограниченной ответственностью "Фирма "Радиус-Сервис" Oscillator for drill string
CN104847259A (en) * 2015-04-13 2015-08-19 刘永旺 Rotating impact acceleration device and method of power drilling tool

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106593296A (en) * 2016-12-15 2017-04-26 中国石油天然气股份有限公司 Underground double-acting accelerator
CN106593306A (en) * 2016-12-28 2017-04-26 倪红坚 Multi-dimension impactor
CN106761387A (en) * 2016-12-28 2017-05-31 倪红坚 A kind of drill string for exciting multidimensional to impact connection pipe nipple
CN108547571A (en) * 2018-04-08 2018-09-18 西南石油大学 A kind of centering type torsion impact drilling tool
CN108547571B (en) * 2018-04-08 2019-09-03 西南石油大学 A kind of centering type torsion impact drilling tool
CN108692903A (en) * 2018-05-16 2018-10-23 长江大学 For micro- experimental provision for boring experiment to micro- PDC drill bit application torsional pulse
CN108692903B (en) * 2018-05-16 2020-10-02 长江大学 Experimental device for applying torsional impact to micro PDC drill bit in micro-drilling experiment
CN108798502A (en) * 2018-07-03 2018-11-13 西南石油大学 Screw composite impact device
CN109915012A (en) * 2019-04-23 2019-06-21 西南石油大学 Hydraulic longitrorse coupled surge device

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