CN108035679A - A kind of method and pulse screw rod for improving helicoid hydraulic motor percussion drilling ability - Google Patents
A kind of method and pulse screw rod for improving helicoid hydraulic motor percussion drilling ability Download PDFInfo
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- CN108035679A CN108035679A CN201711485177.5A CN201711485177A CN108035679A CN 108035679 A CN108035679 A CN 108035679A CN 201711485177 A CN201711485177 A CN 201711485177A CN 108035679 A CN108035679 A CN 108035679A
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- 238000005553 drilling Methods 0.000 title claims abstract description 38
- 238000009527 percussion Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 38
- 239000011435 rock Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/003—Bearing, sealing, lubricating details
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/006—Mechanical motion converting means, e.g. reduction gearings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of method and pulse screw rod for improving helicoid hydraulic motor percussion drilling ability, the pulse screw rod includes anti-lost conversion assembly, motor assembly, the universal axle assembly of pulse and driving-shaft assembly, the anti-lost conversion assembly includes anti-lost crossover sub, anti-lost disk and anti-lost connecting rod, anti-lost crossover sub is internally provided with anti-lost disk, the upper end of anti-lost connecting rod is inserted in anti-lost disk and is fixed by standby tight nut, and the other end of anti-lost connecting rod and the rotor upper end of motor assembly connect.The configuration of the present invention is simple, securely and reliably, can not only increase output torque and rotating speed by motor assembly, and can also improve helicoid hydraulic motor percussion drilling ability by the universal axle assembly of pulse, effectively increase drilling efficiency.
Description
Technical field
The present invention relates to a kind of method and pulse screw rod for improving helicoid hydraulic motor percussion drilling ability, belongs to drilling technology neck
Domain.
Background technology
At present, there is hard non-breakable stratum increasingly in domestic oil-gas exploration, the positive deep formation development of exploitation
More, bit diameter caused by the increase of well depth is big, well section length, the problems such as rate of penetration is slow always affect the construction of whole well into
Journey and drilling cost.Therefore, new, efficient breaking technique for rock is found, to further improving the bit speed in these regions, reducing
Drilling cost, shortening exploration and development cycle are of great significance.Field practice and laboratory test research show, if to drill bit
Apply appropriate periodic shock active force, it will help improve the broken rock drilling efficiency of drill bit, therefore impulse oscillation drilling well skill
Art is a hot spot of the current research of drilling engineering circle both at home and abroad, shows promise as a weight for improving deep well mechanical drilling speed from now on
Want means.But current pulse drilling tool structure tends to be complicated, manufactures cost increase, and system stability is poor, service life
It is shorter.
The content of the invention
It is an object of the present invention to provide a kind of simple in structure, safe and reliable, low manufacture cost, working stability, use the longevity
The method and pulse screw rod of the long raising helicoid hydraulic motor percussion drilling ability of life, the screw rod is on the basis that conventional screw drilling tool is crept into
Upper increase waterpower pulse injection and the function of axial high-frequency percussion, and then improve helicoid hydraulic motor percussion drilling ability.
Technical scheme：A kind of method for improving helicoid hydraulic motor percussion drilling ability, this method pass through to screw rod
The improvement of the universal axle assembly of motor assembly and pulse in drilling tool, with the work(of waterpower pulse injection and axial high-frequency percussion
Can, so as to improve the percussion drilling ability of helicoid hydraulic motor；Wherein the stator of motor assembly and rotor are coordinated using helical structure, from
And extend the helical pitch of motor assembly and add the head number of the sum of series rotor of motor assembly, while improve slush pump system
The discharge capacity of system, can so increase the output torque and rotating speed of motor assembly；At the same time in the lower ball-joint of the universal axle assembly of pulse
3 or more than 3 spray-holes connected with lower flexural pivot inner cavity are evenly equipped with the side wall of head, and in universal shaft outer barrel
Pulse valve pocket is inlayed on wall, and pulse valve pocket is blocked on the oral area of spray-hole, then on the circumference of pulse valve set upper side
Arc notch corresponding with injection hole number is equably set, so that rotation and the arc notch of pulse valve pocket using universal joint
Between form the change of pipes' analysis product moment so that producing a pulsed differential in screw rod, this pulsed differential can not only make drill bit
Nozzle produces impulse jet, reaches more preferable rock breaking efficiency, and pulsed differential gives transmission shaft one impulse force, this thrust
High frequency acts on shaft bottom, reaches more preferable rock breaking efficiency, so as to improve helicoid hydraulic motor percussion drilling ability.
Meanwhile the present invention also provides the pulse spiral shell that a kind of method by above-mentioned raising helicoid hydraulic motor percussion drilling ability is built
Bar, including anti-lost conversion assembly, motor assembly, the universal axle assembly of pulse and driving-shaft assembly；
The anti-lost conversion assembly includes anti-lost crossover sub, anti-lost disk and anti-lost connecting rod, is set inside anti-lost crossover sub
There is anti-lost disk, the upper end of anti-lost connecting rod is inserted in anti-lost disk and is fixed by standby tight nut, the other end and motor of anti-lost connecting rod
The rotor upper end connection of assembly；
The motor assembly includes stator and the rotor in stator, and rotor can rotate in stator, rotor
Lower end is fixedly connected with the upper flexural pivot of the universal axle assembly of pulse, rubber sleeve is hung with the inner wall of stator, in rubber sleeve
Inside spin structure is provided with inner wall, the external spiral with the inside spin structure matching on rubber sleeve is provided with the outer wall of rotor
Structure；
The universal axle assembly of pulse include universal shaft outer barrel and upper flexural pivot installed in universal shaft outer barrel,
Drive ball, semi-ring, lock sleeve, rubber sealing boot, flexural pivot connecting rod and lower flexural pivot, the upper/lower terminal point of the flexural pivot connecting rod
It is not sequentially connected through drive ball and upper flexural pivot and lower flexural pivot；Upper flexural pivot is connected with motor assembly, lower ball-joint
Head is connected with driving-shaft assembly；The junction of flexural pivot connecting rod and drive ball is equipped with a pair of symmetrical semi-ring, a pair of symmetrical semi-ring
Rubber sealing boot is externally provided with, rubber sealing boot is threadedly coupled through lock sleeve with upper flexural pivot or lower flexural pivot；In lower flexural pivot
3 or more than 3 spray-holes connected with lower flexural pivot inner cavity are evenly equipped with the side wall of connector, in universal shaft outer barrel
Pulse valve pocket is inlaid with wall, one end of pulse valve pocket is blocked on the oral area of spray-hole, the circumference in pulse valve pocket 3-8 upper ends
On equably set with spraying the corresponding arc notch of hole number；
The driving-shaft assembly includes transmission shaft outer barrel and the upper TC bearings moving-coil, the upper TC that are arranged in transmission shaft outer barrel
Bearing Jing Quan, string bearing, spacer, pressure-bearing set, anti-lost semi-ring, lower TC bearings Jing Quan, lower TC bearings moving-coil and transmission shaft, it is described
Transmission shaft upper end is connected with lower flexural pivot, and the lower end of transmission shaft can be directly connected to drill bit；It is cased with transmission shaft external wall of upper portion
Upper TC bearings moving-coil, is cased with TC bearing Jing Quan on the outer wall of upper TC bearings moving-coil, is cased with the middle part outer wall of transmission shaft
String bearing, lower TC bearings moving-coil is cased with the lower part outer wall of transmission shaft, lower TC axis is cased with the outer wall of lower TC bearings moving-coil
Jing Quan is held, anti-lost semi-ring and pressure-bearing set are provided between the upper end of lower TC bearings moving-coil and the lower end of string bearing, anti-lost half
Spacer is cased with the outer wall of ring and pressure-bearing set.
Further, the specific lobe of the stator and rotor is：3:4、4:5、5:6、7:8 or 9:10, series is：5~8.
Further, the bulb of the flexural pivot connecting rod upper and lower ends oval Internal Spherical Surface provided circumferentially about for having indent, it is oval
The drive ball of shape is installed in Internal Spherical Surface.
Further, the angle between the axial line of the center line of the spray-hole and lower flexural pivot is 60~90 °.
Further, the upper TC bearings moving-coil upper end bore design has an interior stepped hole, in the lower end of lower flexural pivot
The outer step coordinated with interior stepped hole is provided with, the interior stepped hole on the upper TC bearing moving-coils of outer step insertion on lower flexural pivot
Installation.
Due to the adoption of the above technical scheme, the advantage of the invention is that：Lower flexural pivot of the present invention in the universal axle assembly of pulse
Multiple spray-holes connected with lower flexural pivot inner cavity are evenly equipped with the side wall of connector, and are inlayed on the inner wall of universal shaft outer barrel
Pulse valve pocket, and make pulse valve pocket block on the oral area of spray-hole, then evenly over the circumference setting in pulse valve set upper side
Arc notch corresponding with injection hole number is put, so as to be formed using between the rotation of universal joint and the arc notch of pulse valve pocket
Pipes' analysis product moment changes, so that producing a pulsed differential in screw rod, this pulsed differential can not only produce bit nozzle
Impulse jet, reaches more preferable rock breaking efficiency, and pulsed differential gives transmission shaft one impulse force, the work of this thrust high frequency
For shaft bottom, reach more preferable rock breaking efficiency, so as to improve helicoid hydraulic motor percussion drilling ability；And universal member is sealed in profit
Long-life design in lubricating oil, i.e., string bearing and TC bearings on transmission shaft belong to open lubrication, bearing of going here and there can bear compared with
Big the pressure of the drill.Therefore, the configuration of the present invention is simple, securely and reliably, can not only increase output torque and rotating speed by motor assembly, and
And helicoid hydraulic motor percussion drilling ability can also be improved by the universal axle assembly of pulse, effectively increase drilling efficiency.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram of anti-lost conversion assembly；
Fig. 3 is the structure diagram of motor assembly；
Fig. 4 is the section B-B figure of Fig. 3；
Fig. 5 is pulse universal shaft assembly structure schematic diagram；
Fig. 6 is the structure diagram of pulse valve pocket；
Fig. 7 is the Section A-A figure of Fig. 6；
Fig. 8 is the structure diagram of driving-shaft assembly.
Description of reference numerals：The anti-lost conversion assemblies of 1-, 2- motor assemblies, the universal axle assembly of 3- pulses, 4- driving-shaft assemblies；
The anti-lost crossover subs of 1-1-, the anti-lost nuts of 1-2-, the anti-lost disks of 1-3-, the anti-lost connecting rods of 1-4-；2-1- stators, 2-2- rotors；3-1-
Universal shaft outer barrel, the upper flexural pivots of 3-2-, 3-3- drive balls, 3-4- semi-rings, 3-5- lock sleeves, 3-6- sealing shrouds, 3-7- flexural pivots
Connecting rod, 3-8- pulse valve pockets, 3-9- arc notch, 3-10- spray-holes, flexural pivot under 3-11-, 3-12- outer steps；On 4-1-
TC bearing moving-coils, upper TC bearings Jing Quan, 4-3- the transmission shaft outer barrels of 4-2-, 4-4- string bearings, 4-5- spacers, 4-6- pressure-bearing sets, 4-
The anti-lost semi-rings of 7-, TC bearing moving-coils under TC bearings Jing Quan, 4-9- under 4-8-, 4-10- transmission shafts, stepped hole in 4-11-.
Embodiment
In order to make the object of the invention, technical solution and advantage clearer, below in conjunction with the accompanying drawings and embodiment is to this hair
It is bright to be described in further detail.
The embodiment of the present invention：A kind of method for improving helicoid hydraulic motor percussion drilling ability, this method pass through to screw drill
The improvement of the universal axle assembly 3 of motor assembly 2 and pulse in tool, with the work(of waterpower pulse injection and axial high-frequency percussion
Can, so as to improve the percussion drilling ability of helicoid hydraulic motor；The stator 2-1 and rotor 2-2 of wherein motor assembly 2 use helical structure
Coordinate, so as to extend the helical pitch of motor assembly 2 and add the head number of the sum of series rotor of motor assembly 2, carry at the same time
The discharge capacity of high mud pump system, can so increase the output torque and rotating speed of motor assembly 2；At the same time in the universal axle assembly of pulse
3 or more than 3 spray-holes connected with lower flexural pivot 3-11 inner cavities are evenly equipped with the side wall of 3 lower flexural pivot 3-11
3-10, and pulse valve pocket 3-8 is inlayed on the inner wall of universal shaft outer barrel 3-1, and pulse valve pocket 3-8 is blocked in spray-hole 3-10
Oral area on, the evenly over the circumference setting arc corresponding with spray-hole 3-10 quantity then in pulse valve pocket 3-8 upper ends lacks
Mouth 3-9, so that changed using pipes' analysis product moment is formed between the rotation of universal joint and the arc notch 3-9 of pulse valve pocket, so that
So that producing a pulsed differential in screw rod, this pulsed differential can not only make bit nozzle produce impulse jet, reach more preferable
Rock breaking efficiency, and pulsed differential gives mono- impulse force of transmission shaft 4-10, and this thrust high frequency acts on shaft bottom, reaches more
Good rock breaking efficiency, so as to improve helicoid hydraulic motor percussion drilling ability.
It is a kind of by the above method structure pulse screw rod structure diagram as shown in Figure 1, including it is anti-lost change assembly 1,
Motor assembly 2, the universal axle assembly 3 of pulse and driving-shaft assembly 4.
Referring to Fig. 2, the anti-lost conversion assembly 1 includes anti-lost crossover sub 1-1, anti-lost disk 1-3 and anti-lost connecting rod 1-4,
Anti-lost crossover sub 1-1 is internally provided with anti-lost disk 1-3, and the upper end of anti-lost connecting rod 1-4 is inserted in anti-lost disk 1-3 and by standby tight spiral shell
Female 1-2 is fixed, and the other end of anti-lost connecting rod 1-4 is connected with the rotor 2-2 upper ends of motor assembly 2；
The operation principle of anti-lost conversion assembly 1：Anti-lost crossover sub 1-1 upper ends connect drill string, and anti-lost connecting rod 1-4 lower ends connect
Switch through sub- 2-2, after the fracture of drilling tool outer barrel, the anti-lost disk 1-3 of rotor 2-2 upper ends connection is still suspended on anti-lost conversion and connects
In head 1-1 on step.Anti-lost disk 1-3 bore designs are sleeved on outer cubic anti-lost connecting rod 1-4 into interior square hole, and by
Standby tight nut 1-2 is locked on anti-lost connecting rod 1-4, when anti-lost conversion assembly 1 starts, though anti-lost disk 1-3 be subject to it is positive or
When reversely rotating moment of torsion, its moment of torsion is all without standby tight nut 1-2 is passed to, and institute is in case tight nut 1-2 will not move back button, anti-lost startup
Will be relatively reliable, and slurry channel in drilling tool is closed, well head pressure rise early warning, that is, realize anti-lost outside drilling tool.
Referring to Fig. 3 and Fig. 4, the motor assembly 2 includes the stator 2-1 and rotor 2-2 in stator 2-1, turns
Sub- 2-2 can rotate in stator 2-1, and the upper flexural pivot 3-2 of the lower end axle assembly 3 universal with pulse of rotor 2-2 is fixedly connected,
Rubber sleeve 2-3 is hung with the inner wall of stator 2-1, inside spin structure is provided with the inner wall of rubber sleeve 2-3, in rotor 2-2
Outer wall on be provided with external spiral structure with the inside spin structure matching on rubber sleeve 2-3, and stator 2-1 and rotor 2-2
Specific lobe is：9:10, series is：8.
The operation principle of motor assembly 2：Motor assembly 2 is an energy conversion device, and outer spiral shell is driven by mud pressure
Rotation in spiral stator 2-1 including the rotor 2-2 of rotation shape, and stator 2-1 and rotor 2-2 is engaged to formed closing spiral shell
Rotation annular seal space constantly moves down, and can realize in drilling tool needed for high-pressure slurry drilling fluid hydraulic energy transfer into driving bit
Mechanical energy, be that in the market promotes the use most structure type.
Referring to Fig. 5~7, the universal axle assembly 3 of pulse includes universal shaft outer barrel 3-1 and installed in universal shaft outer barrel 3-
Upper flexural pivot 3-2, drive ball 3-3, semi-ring 3-4, lock sleeve 3-5, rubber sealing boot 3-6, flexural pivot connecting rod 3-7 inside 1 and
The upper/lower terminal of lower flexural pivot 3-11, the flexural pivot connecting rod 3-7 are respectively through drive ball 3-3 and upper flexural pivot 3-2 and lower ball
Articulated joint 3-11 is sequentially connected；Upper flexural pivot 3-2 is connected with motor assembly 2, and lower flexural pivot 3-11 connects with driving-shaft assembly 4
Connect；The junction of flexural pivot connecting rod 3-7 and drive ball 3-3 is equipped with a pair of symmetrical semi-ring 3-4, a pair of symmetrical semi-ring 3-4 peripheral hardwares
There are rubber sealing boot 3-6, rubber sealing boot 3-6 to connect through lock sleeve 3-5 and upper flexural pivot 3-2 or lower flexural pivot 3-11 screw threads
Connect；3 or more than 3 injections connected with lower flexural pivot 3-11 inner cavities are evenly equipped with the side wall of lower flexural pivot 3-11
Hole 3-10, is inlaid with pulse valve pocket 3-8 on the inner wall of universal shaft outer barrel 3-1, and one end of pulse valve pocket 3-8 is blocked in spray-hole
On the oral area of 3-10, the evenly over the circumference setting arc corresponding with spray-hole 3-10 quantity in pulse valve pocket 3-8 upper ends lacks
Mouth 3-9.The bulb oval Internal Spherical Surface provided circumferentially about for having indent of the flexural pivot connecting rod 3-7 upper and lower ends, oval biography
Dynamic ball 3-3 is installed in Internal Spherical Surface.Folder between the axial line of the center line of the spray-hole 3-10 and lower flexural pivot 3-11
Angle is 60~90 °.
The operation principle of the universal axle assembly 3 of pulse：The universal axle assembly 3 of pulse has the function of gimbal function and transmission moment of torsion,
And the junction of drive ball 3-3 and flexural pivot connecting rod 3-7 seals to form lubricant reservoir by rubber sealing boot 3-6, so that flexural pivot connects
The both ends of bar 3-7 work in upper lower oil cavitie all the time, considerably increase greasy property, greatly reduce frictional resistance, so as to extend
The service life of universal joint is 1 times to 1.5 times of original structure, substantially increases economic benefit.Wherein drive ball 3-3 has up and down
Two groups, ovalisation is designed, plays a part of to transmit moment of torsion, and increases the ability of transmission moment of torsion, so that improve transmission can
By property and service life.The pressure-bearing ball, ball seat and flexural pivot connecting rod of conventional structure are integrated by the flexural pivot connecting rod 3-7, and flexural pivot connects
Interior ball is directly processed into the endoporus that the upper and lower ends sphere of bar 3-7 is contacted with upper flexural pivot 3-2 and lower flexural pivot 3-11
Face, simplifies structure, improves the universal 3 anti-axial compressive force of axle assembly of pulse and the ability of anti-rotational centrifugal force, effectively improves
The reliability and working life of transmission；Flexural pivot connecting rod 3-7, drive ball 3-3, upper flexural pivot 3-2 and lower flexural pivot 3-11
Fourth, the core transmission stressed member of the universal axle assembly 3 of pulse, its performance and service life determine performance and the service life of the assembly.Together
When, it is evenly equipped with 6 spray-hole 3-10 connected with lower flexural pivot 3-11 inner cavities on the side wall of lower flexural pivot 3-11, and
Pulse valve pocket 3-8 is inlayed on the inner wall of universal shaft outer barrel 3-1, and pulse valve pocket 3-8 is blocked on the oral area of spray-hole 3-10,
Then the evenly over the circumference setting arc notch 3-9 corresponding with spray-hole 3-10 quantity in pulse valve pocket 3-8 upper ends, so that
Using the change of pipes' analysis product moment is formed between the rotation of universal joint and the arc notch 3-9 of pulse valve pocket, so that in screw rod
A pulsed differential is produced, this pulsed differential can not only make bit nozzle produce impulse jet, reach more preferable rock breaking efficiency, and
And pulsed differential gives mono- impulse force of transmission shaft 4-10, this thrust high frequency acts on shaft bottom, reaches more preferable broken rock effect
Fruit, so as to improve helicoid hydraulic motor percussion drilling ability.
Referring to Fig. 8, the driving-shaft assembly 4 includes transmission shaft outer barrel 4-3 and is arranged on upper in transmission shaft outer barrel 4-3
The quiet circle 4-2 of TC bearing moving-coils 4-1, upper TC bearings, string bearing 4-4, spacer 4-5, pressure-bearing set 4-6, anti-lost semi-ring 4-7, lower TC axis
Quiet circle 4-8, lower TC bearings moving-coil 4-9 and transmission shaft 4-10 are held, the transmission shaft 4-10 upper ends connect with lower flexural pivot 3-11
Connect, the lower end of transmission shaft 4-10 can be directly connected to drill bit；TC bearing moving-coil 4-1 are cased with transmission shaft 4-10 external wall of upper portion,
The quiet circle 4-2 of TC bearings is cased with the outer wall of upper TC bearings moving-coil 4-1, string axis is cased with the middle part outer wall of transmission shaft 4-10
4-4 is held, lower TC bearings moving-coil 4-9 is cased with the lower part outer wall of transmission shaft 4-10, is covered on the outer wall of lower TC bearings moving-coil 4-9
There is the quiet circle 4-8 of lower TC bearings, anti-lost semi-ring is provided between the upper end of lower TC bearings moving-coil 4-9 and the lower end of string bearing 4-4
4-7 and pressure-bearing set 4-6, spacer 4-5 is cased with the outer wall of anti-lost semi-ring 4-7 and pressure-bearing set 4-6.
The operation principle of driving-shaft assembly 4：The driving-shaft assembly 4 plays the role of transmitting the pressure of the drill and moment of torsion.On wherein
TC bearing moving-coil 4-1 upper ends bore design has an interior stepped hole 4-11, the outer step 3-12 insertions on lower flexural pivot 3-11
Interior stepped hole 4-11 installations on upper TC bearings moving-coil 4-1, will since the corresponding outer step 3-12 of lower flexural pivot 3-11 are encased
A part of eccentric force when universal joint rotates is absorbed, so as to reduce the dynamic deformation of scratching of transmission shaft 4-10 to a certain extent, is protected
Protected transmission shaft 4-10 do not got rid of it is disconnected.
Claims (6)
- A kind of 1. method for improving helicoid hydraulic motor percussion drilling ability, it is characterised in that：This method passes through in helicoid hydraulic motor The improvement of motor assembly and the universal axle assembly of pulse, with the function of waterpower pulse injection and axial high-frequency percussion, so that Improve the percussion drilling ability of helicoid hydraulic motor；Wherein the stator of motor assembly and rotor are coordinated using helical structure, so as to extend The helical pitch of motor assembly and add motor assembly sum of series rotor head number, while improve the row of mud pump system Amount, can so increase the output torque and rotating speed of motor assembly；While the side of the lower flexural pivot in the universal axle assembly of pulse 3 or more than 3 spray-holes connected with lower flexural pivot inner cavity are evenly equipped with wall, and are inlayed on the inner wall of universal shaft outer barrel Embedding pulse valve pocket, and pulse valve pocket is blocked on the oral area of spray-hole, then in pulse valve set upper side evenly over the circumference Arc notch corresponding with injection hole number is set, so as to utilize shape between the rotation of universal joint and the arc notch of pulse valve pocket Change into pipes' analysis product moment, so that producing a pulsed differential in screw rod, this pulsed differential can not only produce bit nozzle Raw impulse jet, reaches more preferable rock breaking efficiency, and pulsed differential gives transmission shaft one impulse force, this thrust high frequency Shaft bottom is acted on, reaches more preferable rock breaking efficiency, so as to improve helicoid hydraulic motor percussion drilling ability.
- 2. the pulse screw rod that a kind of method of raising helicoid hydraulic motor percussion drilling ability as described in claim 1 is built, including Anti-lost conversion assembly (1), motor assembly (2), the universal axle assembly of pulse (3) and driving-shaft assembly (4), it is characterised in that：The anti-lost conversion assembly (1) includes anti-lost crossover sub (1-1), anti-lost disk (1-3) and anti-lost connecting rod (1-4), anti-lost Crossover sub (1-1) is internally provided with anti-lost disk (1-3), and the upper end of anti-lost connecting rod (1-4) is inserted in anti-lost disk (1-3) and by standby Tight nut (1-2) is fixed, and the other end of anti-lost connecting rod (1-4) is connected with rotor (2-2) upper end of motor assembly (2)；The motor assembly (2) includes stator (2-1) and the rotor (2-2) in stator (2-1), and rotor (2-2) can The rotation in stator (2-1), the lower end of rotor (2-2) and the fixed company of the upper flexural pivot (3-2) of the universal axle assembly of pulse (3) Connect, rubber sleeve (2-3) hung with the inner wall of stator (2-1), inside spin structure is provided with the inner wall of rubber sleeve (2-3), The external spiral structure with the inside spin structure matching on rubber sleeve (2-3) is provided with the outer wall of rotor (2-2)；The universal axle assembly of pulse (3) includes universal shaft outer barrel (3-1) and installed in the upper of universal shaft outer barrel (3-1) inside Flexural pivot (3-2), drive ball (3-3), semi-ring (3-4), lock sleeve (3-5), rubber sealing boot (3-6), flexural pivot connecting rod (3-7) With lower flexural pivot (3-11), the upper/lower terminal of the flexural pivot connecting rod (3-7) is respectively through drive ball (3-3) and upper flexural pivot (3-2) and lower flexural pivot (3-11) are sequentially connected；Upper flexural pivot (3-2) is connected with motor assembly (2), lower flexural pivot (3-11) is connected with driving-shaft assembly (4)；The junction of flexural pivot connecting rod (3-7) and drive ball (3-3) is equipped with a pair of symmetrical half Ring (3-4), a pair of symmetrical semi-ring (3-4) are externally provided with rubber sealing boot (3-6), and rubber sealing boot (3-6) is through lock sleeve (3-5) It is threadedly coupled with upper flexural pivot (3-2) or lower flexural pivot (3-11)；3 are evenly equipped with the side wall of lower flexural pivot (3-11) A or more than 3 spray-holes (3-10) connected with lower flexural pivot (3-11) inner cavity, in the inner wall of universal shaft outer barrel (3-1) On be inlaid with pulse valve pocket (3-8), one end of pulse valve pocket (3-8) is blocked on the oral area of spray-hole (3-10), in pulse valve Cover the evenly over the circumference setting arc notch (3-9) corresponding with spray-hole (3-10) quantity of 3-8 upper ends；The driving-shaft assembly (4) includes transmission shaft outer barrel (4-3) and the upper TC bearings being arranged in transmission shaft outer barrel (4-3) Moving-coil (4-1), upper TC bearings Jing Quan (4-2), string bearing (4-4), spacer (4-5), pressure-bearing set (4-6), anti-lost semi-ring (4-7), Lower TC bearings Jing Quan (4-8), lower TC bearings moving-coil (4-9) and transmission shaft (4-10), transmission shaft (4-10) upper end is with Flexural pivot (3-11) connects, and the lower end of transmission shaft (4-10) can be directly connected to drill bit；In transmission shaft (4-10) external wall of upper portion TC bearings moving-coil (4-1) is cased with, upper TC bearings Jing Quan (4-2) is cased with the outer wall of upper TC bearings moving-coil (4-1), is being driven String bearing (4-4) is cased with the middle part outer wall of axis (4-10), lower TC bearings are cased with the lower part outer wall of transmission shaft (4-10) and are moved Enclose (4-9), lower TC bearings Jing Quan (4-8) is cased with the outer wall of lower TC bearings moving-coil (4-9), in lower TC bearings moving-coil (4-9) Upper end and string bearing (4-4) lower end between be provided with anti-lost semi-ring (4-7) and pressure-bearing set (4-6), at anti-lost semi-ring (4-7) Spacer (4-5) is cased with the outer wall of pressure-bearing set (4-6).
- 3. pulse screw rod according to claim 2, it is characterised in that：The stator (2-1) and the specific lobe of rotor (2-2) For：3:4、4:5、5:6、7:8 or 9:10, series is：5~8.
- 4. pulse screw rod according to claim 2, it is characterised in that：The bulb of flexural pivot connecting rod (3-7) upper and lower ends The oval Internal Spherical Surface provided circumferentially about for having indent, oval drive ball (3-3) are installed in Internal Spherical Surface.
- 5. pulse screw rod according to claim 2, it is characterised in that：The center line of the spray-hole (3-10) and lower flexural pivot Angle between the axial line of connector (3-11) is 60~90 °.
- 6. pulse screw rod according to claim 2, it is characterised in that：Upper TC bearings moving-coil (4-1) the upper end endoporus is set In respect of an interior stepped hole (4-11), it is provided with the lower end of lower flexural pivot (3-11) outer with interior stepped hole (4-11) cooperation Step (3-12), the interior stepped hole in outer step (3-12) insertion on lower flexural pivot (3-11) on TC bearings moving-coil (4-1) (4-11) is installed.
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| CN201711485177.5A CN108035679A (en) | 2017-12-30 | 2017-12-30 | A kind of method and pulse screw rod for improving helicoid hydraulic motor percussion drilling ability |
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| CN201711485177.5A CN108035679A (en) | 2017-12-30 | 2017-12-30 | A kind of method and pulse screw rod for improving helicoid hydraulic motor percussion drilling ability |
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Cited By (7)
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| CN108798502A (en) * | 2018-07-03 | 2018-11-13 | 西南石油大学 | Screw composite impact device |
| CN108843236A (en) * | 2018-07-31 | 2018-11-20 | 天津立林石油机械有限公司 | Torsion pulse pressure-charging helicoid hydraulic motor |
| CN109707324A (en) * | 2019-01-30 | 2019-05-03 | 天津德华石油装备制造有限公司 | A kind of helicoid hydraulic motor anti-lost motor and helicoid hydraulic motor |
| CN109930986A (en) * | 2019-03-18 | 2019-06-25 | 奥瑞拓能源科技股份有限公司 | Vibrate self-pressurized system |
| CN112576183A (en) * | 2019-09-29 | 2021-03-30 | 中国石油化工股份有限公司 | Screw drilling tool |
| CN113846970A (en) * | 2021-09-23 | 2021-12-28 | 奥瑞拓能源科技股份有限公司 | Self-control rotary hammer |
| CN116856843A (en) * | 2023-07-05 | 2023-10-10 | 盐城市荣嘉机械制造有限公司 | Hammering type hole bottom motor |
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| CN113846970A (en) * | 2021-09-23 | 2021-12-28 | 奥瑞拓能源科技股份有限公司 | Self-control rotary hammer |
| CN116856843A (en) * | 2023-07-05 | 2023-10-10 | 盐城市荣嘉机械制造有限公司 | Hammering type hole bottom motor |
| CN116856843B (en) * | 2023-07-05 | 2024-03-15 | 盐城市荣嘉机械制造有限公司 | Hammering type hole bottom motor |
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Application publication date: 20180515 |