CN205778553U - Shake torsion composite impact speed-raising drill bit - Google Patents

Abstract

The utility model discloses one to shake torsion composite impact speed-raising drill bit, it includes a drill string, and is arranged on the drill bit of drill string one end, and a hydraulic path arranged along drill string body length direction；Hydraulic path includes the axial hydraulic path set gradually from top to bottom along the general flow direction of hydraulic path and turns round to hydraulic path, axial hydraulic path is provided with the axial vibration impact system providing axial vibration into drill bit, torsion is provided with one to hydraulic path provides torsion all by drill string to carry out power transmission with torsion to vibratory impulse system to vibratory impulse system, axial vibration impact system to the torsion of vibration for drill bit.By axial vibration impact system is organically compound in a drill string to vibratory impulse system with turning round, and non-threaded mode drill bit assembly is fastened on drill string, thus effectively avoid the generation of local stress, axial vibration impact and torsion directly act on bit body to vibratory impulse, farthest avoid the decay of energy.

Description

Shake torsion composite impact speed-raising drill bit

Technical field

This utility model relates to a kind of petroleum drilling and mining downhole tool, is specifically related to one and shakes torsion composite impact speed-raising Drill bit.

Background technology

The vibratory impulse of the axis direction of nearly drill bit and the vibratory impulse of torsional direction, can effectively help PDC Composite sheet of drilling bit wedging rock, rock cutting, swing crushing rock, to avoid drill bit to block on rock sliding.But Being that small vibratory impulse power is not enough to dramatically increase efficiency of breaking rock, excessive impact then can damage drill bit originally Body, causes bit life to shorten.

At present, conventional vibratory impulse instrument, such as compounding with the screw motor instrument that spins, owing to installing Size is very limited, and therefore impulsive force is faint, and the drilling tool that screw motor bottom is carried is again by this vibration Impulsive force decays further, increases strength of spinning and then can increase tool length, impact orientation, causes screw rod to pass Moving axis premature fatigue failure.The most conventional torsion impact device, owing to needs are connected with drill bit by screw thread, Therefore the weight of tooth lower end is relatively big, causes torsion impact decay relatively big, affects drill bit efficiency of breaking rock.

On current BHA, spin and instrument is rushed in torsion if compound, then connecting length is longer, and impact is bored The rigidity of tool, stress excessively concentrate on and are unfavorable for the reliability of drilling tool, relatively costly, orientation difficulty at screw thread.

Further, spinning owing to compounding with screw rod, the maintaining after therefore using is relatively difficult, needs genuine Professional operation skilled industrial worker, carries out dismounting maintenance in special workshop and specific purpose tool, and more common way is to send out Return genuine to maintain, cause that tool maintenance maintenance cost is the highest, maintenance period is long, be not suitable for low cost and make The demand of industry.

Utility model content

In view of this, it is necessary to a kind of generation that can effectively avoid local stress, axial vibration are provided Impact and torsion directly act on bit body to vibratory impulse, and the torsion of shaking farthest avoiding energy attenuation is compound Impact speed-raising drill bit.

This utility model provide one shake torsion composite impact speed-raising drill bit, described in shake torsion composite impact speed-raising drill bit Being arranged on a hydraulically operated equipment, described hydraulically operated equipment provides circulation fluid to press for the torsion composite impact speed-raising drill bit that shakes Power, described in the torsion composite impact speed-raising drill bit that shakes include a drill string, and be arranged on the drill bit of drill string one end, with And one along drill string body length direction arrange hydraulic path；It is total that described hydraulic path includes along hydraulic path The axial hydraulic path that direction of flow sets gradually from top to bottom and turn round to hydraulic path, described axial hydraulic path Being provided with the axial vibration impact system providing axial vibration for described drill bit, described torsion sets in hydraulic path Have one to provide for described drill bit to turn round to the torsion of vibration to vibratory impulse system, described axial vibration impact system with Turn round and all carry out power transmission by described drill string to vibratory impulse system.

Preferably, described drill string has a hollow cavity extended along drill string body length direction, described hydraulic pressure Path is arranged in described hollow cavity, and described drill string is disposed with phase along the general flow direction of hydraulic path The top cylinder portion of mutual cutting ferrule and doffing portion, described axial vibration impact system is arranged along the general flow direction of hydraulic path In first hollow cavity in described top cylinder portion, described torsion is arranged at the of described doffing portion to vibratory impulse system Two hollow cavities.

Preferably, described axial vibration impact system arranges and includes,

Support set in one the first hollow cavity being fixedly installed on described top cylinder portion, described support set is vertically The direction of hydraulic path extends radially inwardly out upper valve body and lower valve body；

One is axially movably arranged on the impact piston between described upper valve body and lower valve body, described impact piston energy Enough free axially-movables between described upper valve body and lower valve body；Described impact piston is provided with impact pod apertures,

One axial movable set is at the guide piston of the inner chamber of described impact piston, and described guide piston can be Free axially-movable in the inner chamber of described impact piston；Described guide piston is provided with guiding pod apertures,

Described axial hydraulic path includes multiple axial tap hole；Described axial tap hole with impact pod apertures, Guide and form axial hydraulic branch straggly between pod apertures.

Preferably, the two ends of described impact piston be provided with the movement travel for limiting described guide piston, Lower flow guide sleeve, described upper and lower flow guide sleeve is all contained in the two ends of described impact piston by counterweight lock sheath.

Preferably, described axial hydraulic path is provided with the first flow-distribution mechanism, and described first flow-distribution mechanism includes First segment stem bar and the first assignment hole, axial hydraulic path is split into axially circumference liquid by described first assignment hole Pressure path and axial centre hydraulic path, described axial circumference hydraulic path is configured to by described first segment stem bar High-pressure passage, is configured to low-pressure passage by axial centre hydraulic path.

Preferably, described axial hydraulic branch include the first axial hydraulic branch, the second axial hydraulic branch, 3rd axial hydraulic branch, the 4th axial hydraulic branch；

Hydraulic oil by first axial hydraulic branch promote guide piston in the inner chamber of impact piston by water conservancy diversion Set moves downwardly to lower flow guide sleeve；

Hydraulic oil promotes impact piston by lower valve between upper valve body and lower valve body by the second axial hydraulic branch Body moves up to upper valve body；

Hydraulic oil promotes guide piston to continue up in the inner chamber of impact piston by the 3rd axial hydraulic branch Move to flow guide sleeve；

Hydraulic oil promotes impact piston being moved downwardly to lower valve by upper valve body by the 4th axial hydraulic branch Body.

Preferably, described torsion arranges to vibratory impulse system and includes,

The inwall of second hollow cavity in described doffing portion is provided with the first arc groove and the second arc groove, institute State the first arc groove and the second arc groove is oppositely arranged；

One turns round to the impact pendulnm being movably arranged in described second hollow cavity, the two ends of described impact pendulnm It is fastened in described first arc groove and the second arc groove, it is possible at the first arc groove and the second arc Turn round to swing in groove；Described impact pendulnm is provided with pendulum pod apertures；

One torsion is put in the guiding of the inner chamber of described impact pendulnm to movable set, and described guiding pendulum can be described The inner chamber of described impact pendulnm is turned round to swing；Described guiding is laid out and is provided with guiding pendulum pod apertures；

To hydraulic path, described torsion includes that multiple torsion is to tap hole；Described torsion to tap hole and pendulum pod apertures, Guide and form torsion straggly to hydraulic pressure branch between pendulum pod apertures.

Preferably, described impact pendulnm extends radially outwardly out the first arc boss and the second arc boss, institute State the first arc boss and the second arc boss active card respectively is enclosed within described first arc groove and the second arc In groove, described impact pendulnm can be turned round to swing in doffing portion relatively；

Described impact pendulnm extends radially inwardly out the 3rd arc boss and the 4th arc boss, and described guiding is put Turn round radially-inwardly depression and have the 3rd arc groove and the 4th arc groove, described 3rd arc boss and the 4th Arc boss active card respectively is enclosed within described 3rd arc groove and the 4th arc groove, and described guiding puts energy Enough relative impact pendulums are turned round to swing.

Preferably, described torsion is provided with the second flow-distribution mechanism to hydraulic path, and described second flow-distribution mechanism includes Second section stem bar and the second assignment hole, axial hydraulic path is split into circumference inwardly liquid by described second assignment hole Pressure path and the outside hydraulic path in center, hydraulic oil is after second section stem bar, and its runner narrows, flow velocity Becoming big, form negative pressuren zone, described guiding pendulum is connected with described negative pressuren zone with the gap between impact pendulnm, Owing to the outside hydraulic path of the inside hydraulic path of described circumference and center is higher-pressure region, the most described guide pendulum with Having pressure reduction between impact pendulnm, described pressure reduction promotes described impact pendulnm to do high frequency motion with guiding pendulum.

Preferably, described torsion to hydraulic pressure branch include the first torsion to hydraulic pressure branch, second turn round to hydraulic pressure branch, 3rd turns round to hydraulic pressure branch, the 4th torsion to hydraulic pressure branch；

Hydraulic oil is turned round by first and is promoted impact pendulnm to rotate counterclockwise to hydraulic pressure branch, until the first arc Boss is connected in the first arc groove clockwise, and the second arc boss is connected to the second arc groove clockwise In, the 3rd arc boss and the 4th arc boss also band action-oriented pendulum rotate counterclockwise simultaneously；

Hydraulic oil is turned round by second and is promoted guiding pendulum to continue to rotate counterclockwise to hydraulic pressure branch, until the 3rd arc Boss is connected to the 3rd arc groove counterclockwise, and the 4th arc boss is connected to the 4th arc groove counterclockwise；

Hydraulic oil is turned round by the 3rd and is promoted impact pendulnm to rotate clockwise, until the first arc is convex to hydraulic pressure branch Platform is connected in the first arc groove counterclockwise, and the second arc boss is connected in the second arc groove counterclockwise, 3rd arc boss and the 4th arc boss also band action-oriented pendulum rotate clockwise simultaneously；

Hydraulic oil is turned round by the 4th and is promoted guiding pendulum to continue to rotate clockwise to hydraulic pressure branch, until the 3rd arc Boss is connected to the 3rd arc groove clockwise, and the 4th arc boss is connected to the 4th arc groove clockwise.

This utility model provides the novel torsion composite impact speed-raising drill bit that shakes, and uses axial vibration impact system pair Drill bit forms axial vibration impact so that drill bit deeper embeds in rock, and makes rock produce tired fine fisssure Gap, it is easy to broken, uses to turn round simultaneously and turns round drill bit formation to vibratory impulse to vibratory impulse system, make drill bit The bizet of body ceaselessly produces micro-cutting to rock, forms more efficient broken rock, and is conducive to avoiding stick-slip, Protection drill bit.

By axial vibration impact system is organically compound in a drill string to vibratory impulse system with turning round, And non-threaded mode drill bit assembly is fastened on drill string, thus effectively avoid the generation of local stress, Axial vibration impact and torsion directly act on bit body to vibratory impulse, farthest avoid declining of energy Subtract.And described axial vibration impact system uses shunting mode to drive with turning round to vibratory impulse system, i.e. work as fortune Motivation structure because of cause specific by jam time, have no effect on forward and creep into tubing string normal circulation.

Accompanying drawing explanation

Fig. 1 is that described in the utility model shaking turns round the half sectional view of composite impact speed-raising drill bit；

Fig. 2 is the amplification of the axial vibration impact system shaking and turning round composite impact speed-raising drill bit described in the utility model Schematic diagram；

Fig. 3 is that described in the utility model shaking turns round the torsion of composite impact speed-raising drill bit to the amplification of vibratory impulse system Schematic diagram；

Fig. 4 be in Fig. 3 along A-A to sectional view；

Fig. 5 be in Fig. 3 along A-A to opposite side sectional view；

Fig. 6 is that described in the utility model shaking turns round the split schematic diagram of composite impact speed-raising drill bit；

Fig. 7 is that described in the utility model shaking turns round the exploded perspective view of composite impact speed-raising drill bit；

Fig. 8 is the structural representation of the impact pendulnm shaking and turning round composite impact speed-raising drill bit described in the utility model；

Fig. 9 is that described in the utility model shaking turns round the structural representation guiding pendulum of composite impact speed-raising drill bit.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing And embodiment, this utility model is further elaborated, it will be appreciated that described herein specifically Embodiment, only in order to explain this utility model, is not used to limit this utility model.

As shown in Figures 1 to 9, this utility model provide one shake torsion composite impact speed-raising drill bit, described in shake Turning round composite impact speed-raising drill bit to be arranged on a hydraulically operated equipment, described hydraulically operated equipment is torsion composite impact speed-raising of shaking Drill bit provides circulation fluid pressure power, described in the torsion composite impact speed-raising drill bit that shakes include a drill string 10, and arrange At the drill bit 20 of drill string 10 one end, and a hydraulic path 30. arranged along drill string 10 body length direction

Described hydraulic path 30 include along the general flow direction of hydraulic path 30 set gradually from top to bottom axial Hydraulic path 40 and torsion are to hydraulic path 50, and described axial hydraulic path 40 is provided with and carries for described drill bit 20 For the axial vibration impact system 60 of axial vibration, described torsion is provided with one for described drill bit to hydraulic path 50 20 provide and turn round to the torsion of vibration to vibratory impulse system 70, and described axial vibration impact system 60 and torsion are to shaking Dynamic impact system 70 all carries out power output by described drill string 10.

As it is shown in figure 1, described drill string 10 has a hollow cavity extended along drill string 10 body length direction, Described hydraulic path 30 is arranged in described hollow cavity, and overall along hydraulic path 30 of described drill string 10 Flow to be disposed with top cylinder portion 11 and the doffing portion 12 of mutual cutting ferrule, described axial vibration impact system 60 General flow direction along hydraulic path 30 is arranged at first hollow cavity 101 in described top cylinder portion 11, described torsion to Vibratory impulse system 70 is arranged at second hollow cavity 102 in described doffing portion 12.

As shown in Figure 3 and Figure 5, it is enclosed within described top cylinder portion 11 in the outer tube wall in described doffing portion 12, and An annular slot 121 it is circumferentially with, on the inner tube wall in described top cylinder portion 11 on the outer tube wall in described doffing portion 12 Being provided with the annular card key 111 being oppositely arranged with annular slot 121, described top cylinder portion 11 and doffing portion 12 pass through Annular slot 121 cooperatively forms axial restraint with annular card key 111.

On the outer tube wall in described doffing portion 12, circumference is arranged in the prominent part of the first connection spline 112, described top cylinder portion 11 The most described doffing portion 12 connect end be provided with is connected with first spline 112 turn round to clearance fit second connect Spline 122, forms moment of torsion and connects, have fit clearance, described cooperation between the i.e. first spline and the second spline Gap is relative top cylinder portion 11 of doffing portion 12 and is turning round free gap upwards, makes described second to connect spline 122 rotations that can carry out trace within first connects spline 112.Concrete, the flower of described two spline fitted The width of keyhole gap is more than the width of spline tooth.

Include as in figure 2 it is shown, described axial vibration impact system 60 is arranged,

One is fixedly installed on the support set 61 in first hollow cavity 101 in described top cylinder portion 11, described support The direction of set 61 hydraulic path 40 vertically extends radially inwardly out upper valve body 611 and lower valve body 612；Specifically , the inwall of described first hollow cavity 101 be provided with one in protuberance 68, described support set 61 one end is fixed It is connected to described interior protuberance 68, and between described support set 61 and interior protuberance 68, is provided with impact ring 69, described Support set 61 abuts setting by described interior protuberance 68 is fixing with described top cylinder portion 11.

One is axially movably arranged on the impact piston 62 between described upper valve body 611 and lower valve body 612, described Impact piston 62 can free axially-movable between described upper valve body 611 and lower valve body 612；Described impact Piston 62 is provided with impact pod apertures.

One axial movable set is at the guide piston 63 of the inner chamber of described impact piston 62, described guide piston 63 can free axially-movable in the inner chamber of described impact piston 62；Set on described guide piston 63 There is guiding pod apertures.

Described axial hydraulic path 40 includes multiple axial tap hole, described axial tap hole and impact pod apertures, Guide and form axial hydraulic branch straggly between pod apertures.

Wherein, the two ends of described impact piston 62 are provided with the movement travel for limiting described guide piston 63 Upper and lower flow guide sleeve 64, described upper and lower flow guide sleeve 64 is all sleeved on described impact by counterweight locknut 65 The two ends of piston 62, therefore, when guide piston 63 is connected to impact piston 62, described impact piston 62 Guide piston 63 is driven to be synchronized with the movement by counterweight locknut 65.

Described axial hydraulic path 40 is provided with the first flow-distribution mechanism, and described first flow-distribution mechanism includes first segment Stem bar 66 and the first assignment hole 67, axial hydraulic path 40 is split into axial week by described first assignment hole 67 To hydraulic path 130 and axial centre hydraulic path 230, described first segment stem bar 66 is by described axial circumference Hydraulic path 130 is configured to high-pressure passage, and axial centre hydraulic path 230 is configured to low-pressure passage.Tool Body, when hydraulic oil is by described first segment stem bar 66, its runner narrows, and flow velocity becomes big, forms negative pressure District, therefore, has pressure reduction between described axial circumference hydraulic path 130 and axial centre hydraulic path 230, Described pressure reduction promotes described impact piston 62 to do high frequency motion with guide piston 63.

As in figure 2 it is shown, described axial vibration impact system 60 is arranged on described axial circumference hydraulic path 130 With between axial centre hydraulic path 230, described axial circumference hydraulic path 130 is provided with first and axially divides Discharge orifice 601a, the second axial tap hole 601b, the 3rd axial tap hole 601c, the described first axial tap hole The axial tap hole 601c of 601a and the 3rd extends through described upper valve body 611 and lower valve body 612 is arranged, described Second axial tap hole 601b is arranged between the first axial axial tap hole 601c of tap hole 601a and the 3rd.

Described impact piston 62 is sequentially provided with the first impact along the bearing of trend of described axial hydraulic path 40 and leads Discharge orifice the 621, second impact pod apertures the 622, the 3rd impact pod apertures the 623, the 4th impact pod apertures 624, 5th impact pod apertures 625.

Described guide piston 63 is sequentially provided with the first guiding along the bearing of trend of described axial hydraulic path 40 and leads Discharge orifice 631, second guides pod apertures the 632, the 3rd and guides pod apertures the 633, the 4th guiding pod apertures 634.

Concrete, when described guide piston 63 is connected to the top of impact piston 62 inner chamber, described first Axially tap hole 601a is by the inner space of the first impact pod apertures 621 with described impact piston 62, shape Becoming the first axial hydraulic branch, hydraulic oil promotes guide piston 63 to live in impact by the first axial hydraulic branch The inner chamber of plug 62 is moved downwardly to lower flow guide sleeve by upper flow guide sleeve, owing to lower flow guide sleeve is by counterweight locknut 65 It is fixedly installed with described impact piston 62, therefore impact piston 62 is produced downward axial impact force, by Impact piston 62 is transitioned into top cylinder portion 11, and is loaded onto drill bit 20 by top cylinder portion 11.

When described guide piston 63 moves to lower flow guide sleeve, the described second axial tap hole 601b and the 3rd Impact pod apertures 623, second guides pod apertures the 632, the 4th impact pod apertures 624 and is conducted, and forms second Axial hydraulic branch, hydraulic oil promotes impact piston 62 upper valve body 611 He by the second axial hydraulic branch Moved up to upper valve body 611 by lower valve body 612 between lower valve body 612, its to upper valve body 611 produce to Upper axial impact force is transitioned into impact ring 69 by upper valve body 611, impact ring 69 be transitioned into top cylinder portion 11, And it is loaded onto drill bit 20 by top cylinder portion 11.Meanwhile, described impact piston 62 is by lower flow guide sleeve band action-oriented Piston 63 moves upward simultaneously.

When described impact piston 62 moves to upper valve body 611, the described 3rd axial tap hole 601c and Five impact pod apertures 625 are conducted, and form the 3rd axial hydraulic branch, and hydraulic oil passes through the 3rd axial hydraulic Branch promotes guide piston 63 to continue to move up to flow guide sleeve in the inner chamber of impact piston 62, and it is right The axially upwardly impulsive force that upper flow guide sleeve produces is transitioned into upper valve body 611, by upper valve body by impact piston 62 611 are transitioned into top cylinder portion 11, and are loaded onto drill bit 20 by top cylinder portion 11.

When described guide piston 63 moves to upper flow guide sleeve, the described second axial tap hole 601b and the 3rd Impact pod apertures 623, second guides pod apertures the 632, second impact pod apertures 622 and is connected, and forms the 4th Axial hydraulic branch, hydraulic oil promotes impact piston 62 by upper valve body 611 by the 4th axial hydraulic branch Moving downwardly to lower valve body 612, its impulsive force axially downwards producing lower valve body 612 is by lower valve body 612 mistake Cross top cylinder portion 11, and be loaded onto drill bit 20 by top cylinder portion 11.

By above-mentioned four axial impacts, drill bit 20 is formed axis vibratory impulse so that drill bit 20 is deeper Embedding rock in, and make rock produce tired microfissure, it is easy to broken.Simultaneously as described axial week Being high-pressure passage to hydraulic path 130, axial centre hydraulic path 230 is configured to low-pressure passage, described axle To forming pressure reduction between circumference hydraulic path 130 and axial centre hydraulic path 230 such that it is able to make axially The hydraulic oil of circumference hydraulic path 130 is more prone to promote impact piston 62 and the guide piston 63 of internal negative pressure Do high frequency motion.

In actual applications, according to drill string 10 discharge capacity, by the regulation diameter of first segment stem bar 66, impact The stroke of piston 62 and the weight of counterweight locknut 65, can obtain different frequency of impacts and ballistic work. Concrete, the diameter of regulation flow nipple can obtain different choke pressures, and choke pressure is just, to impact The thrust size of piston 62 produces impact, thus axis impulsive force is produced impact, and thrust size also can change Impact piston 62 to the time of end speed during impact, i.e. changes impact stroke movement time from static, from And also frequency is produced impact.The stroke of regulation impact piston 62, thus it is possible to vary acceleration distance, thus affect End speed during impact, thus affect the size of impulsive force, have also been changed the impact row of impact piston 62 simultaneously The journey time, thus have also been changed frequency of impact.

As shown in Fig. 3 to Fig. 9, described torsion arranges to vibratory impulse system 70 and includes

The inwall of second hollow cavity 102 in described doffing portion 12 is provided with the first arc groove 71 and the second arc Connected in star 72, described first arc groove 71 and the second arc groove 72 are oppositely arranged；

One turns round to the impact pendulnm 73 being movably arranged in described second hollow cavity 102, described impact pendulnm The two ends of 73 are fastened in described first arc groove 71 and the second arc groove 72, described impact pendulnm 73 Can relatively turn round to swing in doffing portion 12；Concrete, as shown in Figure 4, described impact pendulnm 73 radially to Extend outward the first arc boss 731 and the second arc boss 732, described first arc boss 731 and second Arc boss 732 active card respectively is enclosed within described first arc groove 71 and the second arc groove 72, with Time, described impact pendulnm 73 is provided with pendulum pod apertures.

One torsion puts 74 to movable set in the guiding of the inner chamber of described impact pendulnm 73, and described guiding puts 74 energy Enough turn round to swing in the inner chamber of described impact pendulnm 73；Concrete, described impact pendulnm 73 is radially Extend internally out the 3rd arc boss 733 and the 4th arc boss 734, and the described pendulum 74 that guides is turned round radially-inwardly Depression has the 3rd arc groove 741 and the 4th arc groove 742, described 3rd arc boss 733 and the 4th Arc boss 734 active card respectively is enclosed within described 3rd arc groove 741 and the 4th arc groove 742, Meanwhile, the described pendulum 74 that guides is provided with guiding pendulum pod apertures.

To hydraulic path 50, described torsion includes that multiple torsion is to tap hole；Described torsion to tap hole and pendulum pod apertures, Guide and form torsion straggly to hydraulic pressure branch between pendulum pod apertures.

Described torsion is provided with the second flow-distribution mechanism to hydraulic path 50, and described second flow-distribution mechanism includes second section Stem bar 75 and the second assignment hole 76, described second assignment hole 76 axial hydraulic path 40 is split into circumference to The outside hydraulic path of interior hydraulic path 130 and center 230, hydraulic oil after second section stem bar 75, its Runner narrows, and flow velocity becomes big, forms negative pressuren zone, the gap between described guiding pendulum 74 and impact pendulnm 73 It is connected with described negative pressuren zone, due to the outside hydraulic path of the inside hydraulic path of described circumference 130 and center 230 Being higher-pressure region, the most described guiding has pressure reduction between pendulum 74 and impact pendulnm 73, described pressure reduction promotes institute State impact pendulnm 73 and do high frequency motion with guiding pendulum 74.

As it is shown in figure 5, along the general flow direction week of hydraulic path 30 on the inwall of described second hollow cavity 102 To be uniformly provided with the first torsion to tap hole 102a, second turn round to tap hole 102b, the 3rd turn round to tap hole 102c, 4th turn round to tap hole 102d, described first turn round to tap hole 102a, second turn round to tap hole 102b, the 3rd Turn round and be all connected to circumference hydraulic path 30 with described torsion to tap hole 102d to tap hole 102c, the 4th torsion. Concrete, the inwall of second hollow cavity 102 in described doffing portion 12 is provided with the first arc groove 71 and the Two arc grooves 72, the most accordingly, are provided with between described first arc groove 71 and the second arc groove 72 5th arc boss and the 6th arc boss, described first turns round to tap hole 102a, the second torsion to tap hole 102b Running through described 5th arc boss to arrange, the described 3rd turns round to tap hole 102c, the 4th torsion to tap hole 102d Run through described 6th arc boss to arrange.

As shown in Fig. 4, Fig. 5 and Fig. 8, first arc boss the 731, second arc of described impact pendulnm 73 First pendulum that is respectively provided on two sides with of shape boss the 732, the 3rd arc boss the 733, the 4th arc boss 734 is led Discharge orifice 703a, the second pendulum pod apertures 703b, the 3rd pendulum pod apertures 703c, the 4th pendulum pod apertures 703d, 5th pendulum pod apertures 703e, the 6th pendulum pod apertures 703f, the 7th pendulum pod apertures 703g, the 8th pendulum Pod apertures 703h.

As shown in Fig. 4, Fig. 5 and Fig. 9, described the 3rd arc groove 741 and the 4th arc guiding pendulum 74 The 7th arc boss 743 and the 8th arc boss 744, described 7th arc boss it is provided with between groove 742 743 and the 8th diametrically it is provided with the first guiding pendulum pod apertures 704a on arc boss 744, second guides pendulum Pod apertures 704b, described first guides pendulum pod apertures 704a, the second guiding pendulum pod apertures 704b all with described The outside hydraulic path in center 230 is connected.

The described pendulum 74 also circumference that guides is evenly arranged with multiple the 5th arc groove 745 caved inward, described 5th arc groove 745 is connected to the negative pressuren zone of hydraulic path 50 with described torsion, is formed and turns round to vibratory impulse Pressure reduction in system 70.

Concrete, when the 3rd arc boss 733 and the 4th arc boss 734 difference of described impact pendulnm 73 It is connected to clockwise guide in the 3rd arc groove 741 and the 4th arc groove 742 of putting 74, described impact First arc boss 731 of pendulum 73 and the second arc boss 732 are connected to doffing portion 12 the most counterclockwise The first arc groove 71 and the second arc groove 72 in time, the outside hydraulic path in described center 230 is passed through First guides pendulum pod apertures 704a, the first pendulum pod apertures 703a and the first arc groove 71 connects, and is formed First turns round to hydraulic pressure branch, and hydraulic oil promotes the first arc of impact pendulnm 73 by the first torsion to hydraulic pressure branch Boss 731 rotates counterclockwise to being connected to clockwise in the first arc groove 71 in the first arc groove 71, Second arc boss 732 of impact pendulnm 73 rotates counterclockwise to supporting clockwise in the second arc groove 72 Being connected in the second arc groove 72, the 3rd arc boss 733 and the 4th arc boss 734 also drive and lead simultaneously Rotate counterclockwise to pendulum 74, then doffing portion 12 is produced under the promotion of hydraulic oil counterclockwise by impact pendulnm 73 Torsion to impulsive force, and be loaded onto drill bit 20 by doffing portion 12.

When the first arc boss 731 and second arc boss 732 of described impact pendulnm 73 support the most clockwise When being connected in first arc groove 71 in doffing portion 12 and the second arc groove 72, the inside hydraulic pressure of described circumference Path 130 is turned round to tap hole 102a, the second pendulum pod apertures 703b and the 3rd arc groove 741 by first Form the second torsion and guide pendulum 74 continuation inverse time by the second torsion to the promotion of hydraulic pressure branch to hydraulic pressure branch, hydraulic oil Pin rotates, until the 3rd arc boss 733 is connected to the 3rd arc groove 741 counterclockwise, and the 4th arc boss 734 are connected to the 4th arc groove 742 counterclockwise, then guide pendulum 74 under the promotion of hydraulic oil to doffing portion The torsion that 12 generations are counterclockwise is to impulsive force, and is loaded onto drill bit 20 by doffing portion 12.

When described the 7th arc boss the 743, the 8th arc boss 744 guiding pendulum 74 abuts the most clockwise When the 3rd arc groove 741, four arc grooves 742, the outside hydraulic path in described center 230 is by the One guide pendulum pod apertures 704a, the 8th pendulum pod apertures 703h and the first arc groove 71 connect, formation the Three turn round to hydraulic pressure branch, and hydraulic oil is convex to the first arc of hydraulic pressure branch promotion impact pendulnm 73 by the 3rd torsion Platform 731 is clockwise to be connected to counterclockwise in the first arc groove 71 in the first arc groove 71, Turn to support counterclockwise along pin when second arc boss 732 of impact pendulnm 73 is in the second arc groove 72 Being connected in the second arc groove 72, the 3rd arc boss 733 and the 4th arc boss 734 also drive and lead simultaneously Rotate clockwise to pendulum 74, then doffing portion 12 is produced under the promotion of hydraulic oil clockwise by impact pendulnm 73 Torsion to impulsive force, and be loaded onto drill bit 20 by doffing portion 12.

When the first arc boss 731 and second arc boss 732 of described impact pendulnm 73 support the most counterclockwise When being connected in first arc groove 71 in doffing portion 12 and the second arc groove 72, the inside hydraulic pressure of described circumference Path 130 is turned round to tap hole 102b, the 3rd pendulum pod apertures 703c and the 3rd arc groove 741 by second Form the 4th torsion and promote guiding pendulum 74 continuation up time by the 4th torsion to hydraulic pressure branch to hydraulic pressure branch, hydraulic oil Pin rotates, until the 3rd arc boss 733 is connected to the 3rd arc groove 741 clockwise, and the 4th arc boss 734 are connected to the 4th arc groove 742 clockwise, then guide pendulum 74 under the promotion of hydraulic oil to ballistic pendulum The hammer 73 clockwise torsion of generation, to impulsive force, is loaded onto doffing portion 12 by impact pendulnm 73, and by doffing portion 12 are loaded onto drill bit 20.

Turn round to impact by above-mentioned four times, drill bit 20 is formed and turns round to vibratory impulse, and so forth, cause punching Hit pendulum 73 ceaselessly high frequency and clash into doffing portion 12, and doffing portion 12 fixes with drill bit 20 and is connected, and then make The bizet of drill bit 20 body ceaselessly produces micro-cutting to rock, forms more efficient broken rock, and is conducive to avoiding Stick-slip, protects drill bit 20.Simultaneously as described guiding has pressure reduction between pendulum 74 and impact pendulnm 73, It is thus possible to make the hydraulic oil of circumference inwardly hydraulic path 130 and the outside hydraulic path in center 230 be more prone to Impact pendulnm 73 is promoted to do high frequency motion with guiding pendulum 74.

Axial vibration impact system 60 described in the utility model pushes away reciprocating mechanism for surging, and is a kind of pressure reduction Positive displacement drive, its convection cell, gas and mixed phase liquid have excellence compatibility, be suitable for fresh water-based mud, Seawater based mud, oil-base mud, weighted mud, bleach, chemical solvent, the hydrochloric acid of 1%, 3%KCL, poly- Compound gel, scale remover, air, carbon dioxide, nitrogen or mixed gas；And range of pressure fluctuations is little, Operating frequency is different from mwd system, does not affect MWD/LWD tool signal, and riding position is not by mwd system Restriction；

Axis vibration simultaneously and torsion are adjustable to vibratory impulse power, and drill bit 20 and tubing string will not be produced impact failure, Destruction drill bit 20 will not be produced and cut the impulsive force of tooth or bearing, make load transfer steady, reduce and block sliding carrying High drill bit 20 life-span.

This utility model provides the novel torsion composite impact speed-raising drill bit that shakes, and uses axial vibration impact system 60 Drill bit 20 is formed axial vibration impact so that drill bit 20 deeper embeds in rock, and makes rock produce Tired microfissure, it is easy to broken, uses to turn round simultaneously and turns round drill bit 20 formation to shaking to vibratory impulse system 70 Dynamic impact, makes the bizet of drill bit 20 body ceaselessly rock be produced micro-cutting, forms more efficient broken rock, and Be conducive to avoiding stick-slip, protect drill bit 20.

By axial vibration impact system 60 is organically compound to a brill with turning round to vibratory impulse system 70 In post 10, and non-threaded mode drill bit 20 assembly is fastened on drill string 10, thus effectively avoids office The generation of portion's stress, axial vibration impact and torsion directly act on drill bit 20 body to vibratory impulse, at utmost The decay avoiding energy.And described hydraulic motion mechanism employing shunting mode drives, i.e. work as motion During because of cause specific by jam, have no effect on forward and creep into tubing string normal circulation.

This utility model provides the novel torsion composite impact speed-raising drill bit that shakes, simple in construction, convenient disassembly, just In on-site maintenance, change accessory and reparation, and service life is long；Can be with drill bit 20, junk mill, set miller Tool, to drag for the drilling wells such as anchor dipper, well workover milling fishing tool supporting, provides multi-direction impact kinetic energy for it, is A kind of multipurpose petroleum drilling and mining downhole tool.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all Within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all should wrap Within being contained in protection domain of the present utility model.

Claims (10)

1. shake a torsion composite impact speed-raising drill bit, described in the torsion composite impact speed-raising drill bit that shakes be arranged on one and surge On device, described hydraulically operated equipment provides circulation fluid pressure power for the torsion composite impact speed-raising drill bit that shakes, and its feature exists In,

The described torsion composite impact speed-raising drill bit that shakes includes a drill string (10), and is arranged on drill string (10) one end Drill bit (20), and one along drill string (10) body length direction arrange hydraulic path (30)；Described Hydraulic path (30) includes the axial liquid set gradually from top to bottom along the general flow direction of hydraulic path (30) Pressure path (40) and torsion are to hydraulic path (50), and described axial hydraulic path (40) is provided with as described brill Head (20) provides the axial vibration impact system (60) of axial vibration, and described torsion is in hydraulic path (50) It is provided with one to provide for described drill bit (20) and turn round to the torsion of vibration to vibratory impulse system (70), described axially shakes Dynamic impact system (60) all carries out power by described drill string (10) with turning round to vibratory impulse system (70) Transmission.

The most according to claim 1, shake torsion composite impact speed-raising drill bit, it is characterised in that described drill string (10) Having a hollow cavity extended along drill string (10) body length direction, described hydraulic path (30) is arranged In described hollow cavity, and described drill string (10) sets gradually along the general flow direction of hydraulic path (30) Having top cylinder portion (11) and doffing portion (12) of mutual cutting ferrule, described axial vibration impact system (60) is along liquid The general flow direction of pressure path (30) is arranged at first hollow cavity (101) of described top cylinder portion (11), institute State and turn round the second hollow cavity (102) being arranged at described doffing portion (12) to vibratory impulse system (70).

The most according to claim 2, shake torsion composite impact speed-raising drill bit, it is characterised in that described axially shakes Dynamic impact system (60) arranges and includes,

Support set (61) in one the first hollow cavity (101) being fixedly installed on described top cylinder portion (11), The direction of described support set (61) hydraulic path vertically (40) extends radially inwardly out upper valve body (611) With lower valve body (612)；

One is axially movably arranged on the impact piston (62) between described upper valve body (611) and lower valve body (612), Described impact piston (62) can between described upper valve body (611) and lower valve body (612) the most axially Motion；Described impact piston (62) is provided with impact pod apertures,

One axial movable set is in the guide piston (63) of the inner chamber of described impact piston (62), described guiding Piston (63) can free axially-movable in the inner chamber of described impact piston (62)；Described guiding Piston (63) is provided with guiding pod apertures,

Described axial hydraulic path (40) includes multiple axial tap hole；Described axial tap hole is led with impact Axial hydraulic branch straggly is formed between discharge orifice, guiding pod apertures.

The most according to claim 3, shake torsion composite impact speed-raising drill bit, it is characterised in that described impact is lived The two ends of plug (62) are provided with the upper and lower flow guide sleeve of the movement travel for limiting described guide piston (63) (64), described upper and lower flow guide sleeve (64) is all sleeved on described impact piston (62) by counterweight locknut (65) Two ends.

The most according to claim 4, shake torsion composite impact speed-raising drill bit, it is characterised in that described axial liquid Pressure path (40) is provided with the first flow-distribution mechanism, and described first flow-distribution mechanism includes first segment stem bar (66) With the first assignment hole (67), axial hydraulic path (40) is split into axially by described first assignment hole (67) Circumference hydraulic path (401) and axial centre hydraulic path (402), described first segment stem bar (66) is by institute State axially circumference hydraulic path (401) and be configured to high-pressure passage, axial centre hydraulic path (402) is joined It is set to low-pressure passage.

The most according to claim 5, shake torsion composite impact speed-raising drill bit, it is characterised in that described axial liquid Pressure branch include the first axial hydraulic branch, the second axial hydraulic branch, the 3rd axial hydraulic branch, the 4th Axial hydraulic branch；

Hydraulic oil promotes guide piston (63) interior at impact piston (62) by the first axial hydraulic branch Chamber is moved downwardly to lower flow guide sleeve by upper flow guide sleeve；

Hydraulic oil promotes impact piston (62) at upper valve body (611) and lower valve by the second axial hydraulic branch Upper valve body (611) is moved up to by lower valve body (612) between body (612)；

Hydraulic oil promotes guide piston (63) interior at impact piston (62) by the 3rd axial hydraulic branch Chamber is continued move up to flow guide sleeve；

Hydraulic oil promotes impact piston (62) downward by upper valve body (611) by the 4th axial hydraulic branch Move to lower valve body (612).

The most according to claim 1, shake torsion composite impact speed-raising drill bit, it is characterised in that described torsion is to shaking Dynamic impact system (70) arranges and includes,

The inwall of second hollow cavity (102) of described doffing portion (12) is provided with the first arc groove (71) With the second arc groove (72), described first arc groove (71) is relative with the second arc groove (72) to be set Put；

One turns round to the impact pendulnm (73) being movably arranged in described second hollow cavity (102), described punching The two ends hitting pendulum (73) are fastened in described first arc groove (71) and the second arc groove (72), Can turn round to swing in the first arc groove (71) and the second arc groove (72)；Described impact pendulnm (73) pendulum pod apertures it is provided with；

One torsion puts (74) to movable set in the guiding of the inner chamber of described impact pendulnm (73), and described guiding is put (74) can turn round to swing in the inner chamber of described impact pendulnm (73)；Described guiding puts (74) It is provided with guiding pendulum (74) pod apertures；

To hydraulic path (50), described torsion includes that multiple torsion is to tap hole；Described torsion is led with pendulum to tap hole Torsion straggly is formed to hydraulic pressure branch between discharge orifice, guiding pendulum (74) pod apertures.

The most according to claim 7, shake torsion composite impact speed-raising drill bit, it is characterised in that described ballistic pendulum Hammer (73) extends radially outwardly out the first arc boss (731) and the second arc boss (732), and described the One arc boss (731) and the second arc boss (732) active card respectively are enclosed within described first arc groove (71), in and the second arc groove (72), described impact pendulnm (73) can relatively doffing portion (12) Turn round to swing；

Described impact pendulnm (73) extends radially inwardly out the 3rd arc boss (733) and the 4th arc boss (734), described pendulum (74) the torsion radially-inwardly depression that guides has the 3rd arc groove (741) and the 4th arc Connected in star (742), described 3rd arc boss (733) and the 4th arc boss (734) active card respectively Being enclosed within described 3rd arc groove (741) and the 4th arc groove (742), described guiding puts (74) Can turn round to swing by relative impact pendulum (73).

The most according to claim 8, shake torsion composite impact speed-raising drill bit, it is characterised in that described torsion is to liquid Pressure path (50) is provided with the second flow-distribution mechanism, and described second flow-distribution mechanism includes second section stem bar (75) With the second assignment hole (76), axial hydraulic path (40) is split into circumference by described second assignment hole (76) Inwardly hydraulic path (501) and the outside hydraulic path in center (502), hydraulic oil is through second section stem bar (75) Afterwards, its runner narrows, and flow velocity becomes big, forms negative pressuren zone, described guiding pendulum (74) and impact pendulnm (73) Between gap be connected with described negative pressuren zone, due to the inside hydraulic path of described circumference (501) and center to Outer hydraulic path (502) is higher-pressure region, and the most described guiding has between pendulum (74) and impact pendulnm (73) Having pressure reduction, described pressure reduction promotes described impact pendulnm (73) to do high frequency motion with guiding pendulum (74).

The most according to claim 9, shake torsion composite impact speed-raising drill bit, it is characterised in that described torsion is to liquid Pressure branch include the first torsion to hydraulic pressure branch, second turn round to hydraulic pressure branch, the 3rd turn round to hydraulic pressure branch, the 4th Turn round to hydraulic pressure branch；

Hydraulic oil promotes impact pendulnm (73) to rotate counterclockwise by the first torsion to hydraulic pressure branch, until the One arc boss (731) is connected in the first arc groove (71) clockwise, the second arc boss (732) Being connected to clockwise in the second arc groove (72), the 3rd arc boss (733) and the 4th arc are convex simultaneously Platform (734) also band action-oriented pendulum (74) rotates counterclockwise；

Hydraulic oil promotes guiding pendulum (74) to continue to rotate counterclockwise by the second torsion to hydraulic pressure branch, until the Three arc boss (733) are connected to the 3rd arc groove (741), the 4th arc boss (734) counterclockwise It is connected to the 4th arc groove (742) counterclockwise；

Hydraulic oil promotes impact pendulnm (73) to rotate clockwise by the 3rd torsion to hydraulic pressure branch, until first Arc boss (731) is connected in the first arc groove (71) counterclockwise, the second arc boss (732) Being connected to counterclockwise in the second arc groove (72), the 3rd arc boss (733) and the 4th arc are convex simultaneously Platform (734) also band action-oriented pendulum (74) rotates clockwise；

Hydraulic oil promotes guiding pendulum (74) to continue to rotate clockwise by the 4th torsion to hydraulic pressure branch, until the Three arc boss (733) are connected to the 3rd arc groove (741), the 4th arc boss (734) clockwise It is connected to the 4th arc groove (742) clockwise.