CN104499941B - Method of longitudinal vibration of drilling string is converted into the device of drill bit torsional pulse - Google Patents
Method of longitudinal vibration of drilling string is converted into the device of drill bit torsional pulse Download PDFInfo
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- CN104499941B CN104499941B CN201410755204.6A CN201410755204A CN104499941B CN 104499941 B CN104499941 B CN 104499941B CN 201410755204 A CN201410755204 A CN 201410755204A CN 104499941 B CN104499941 B CN 104499941B
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- 238000005553 drilling Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 25
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 27
- 210000004907 gland Anatomy 0.000 claims description 13
- 238000004080 punching Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 8
- 238000005461 lubrication Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 230000000703 anti-shock Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Earth Drilling (AREA)
Abstract
The present invention is that method of longitudinal vibration of drilling string is converted into the device of drill bit torsional pulse, and extensional vibration assembly includes that biography is shaken axle, passes the axle that shakes and connects limited location set and flower is healthy and strong, and passes the bottom of the axle that shakes and connects and have vibration generator, vibration generator is provided with and rushes ear；Reset torsion pass assembly includes spline shell, spring, transit joint, impacter shell, and the top of spring, bottom contact respectively at the bottom of stop collar and the top of transit joint；Torsion occurs transmission assembly to include jump bit, and jump bit is arranged in drill headstock, is provided with helicla flute in jump bit, rushes ear and matches with helicla flute；Being provided with internal spline in spline shell, spline body matches with internal spline；The lower end of impacter shell is provided with housing spline, and the lower end of drill headstock is provided with pedestal spline, housing spline and pedestal spline and matches.The method of longitudinal vibration of drilling string being harmful in drilling process can be converted into the circumferential high-frequency torsional pulse vibration acting on drill bit by the present invention, improves rate of penetration.
Description
Technical field
The invention belongs to drilling engineering field, particularly relate to a kind of general being applied in oil, Natural Gas Drilling Operation and bore
Post extensional vibration is converted into the device of drill bit torsional pulse.
Background technology
Modern energy Development Strategy is more and more higher with the requirement of quality to bit speed.Creeping into deep, there is high abrasive
Stratum time, rely on and change efficiency of breaking rock, save the trip time and improve the main force drill bit PDC drill bit of drilling efficiency and bore
There is serious " stick-slip " (stick-slip) oscillation phenomenon when entering, this phenomenon makes drill string matching component and downhole tool combination
Force status is severe, and fatigue life is low, thus limits the further development even hindering deep-well, ultradeep well.
In drilling process, the problem that the drilling tool failure caused due to stick-slip phenomenon and rate of penetration decline, both at home and abroad
Applied by scene and research shows, drill bit can be reduced by periodically applying small size high-frequency torsional pulse on drill bit
Crash rate and improve rate of penetration, thus devise multiple torsion impact device to be embodied as PDC drill bit apply circumference high frequency punching
Hit the purpose of load, specifically include that U.S.'s Aunar draws the torsion impact device (patent No.: US6742609B2) of company, U.S. Harry
The torsional pulse system (patent No.: US7096980B2) of Christian Breton ESCO, the torsional pulse drilling well of Southwest Petrol University
Instrument (application number: 200910058083.9), triumph Engineering Co., Ltd of SINOPEC graduate torsion of drilling technology are rushed
Jetting type torsional impact drilling tool (the application of instrument (application number: 201010511421.2) and China Petroleum Univ. (East-China)
Number: 201010511421.2) etc..Although the configurations of these devices, but there is common feature: the work energy of torsion impact
Amount derives from drilling circulation medium.
Practice have shown that: along with the increase of well depth, drilling circulation medium pressure consumption increases, when well depth is the biggest, in fact it could happen that follow
Ring medium is only capable of meeting the requirement of migrating rock cuttings with circulation, and said apparatus duty can be greatly affected, and occurring most probably cannot normal work
Make even to affect the possibility that drillng operation is carried out；When drilling circulation medium be the compressible coefficient such as air or aerated mud relatively
During big medium, said apparatus is all difficult to normally work.Therefore, research and development utilize the down-hole torsion impact generating means pair of new forms of energy
The most meaningful in deep-well, ultradeep well torsion impact drilling speed.
The oscillation phenomenon of drill string is the complex situations being frequently encountered by straight well drilling well, and in drillstring vibrations, extensional vibration is
Harm is the most obvious, most frequent vibration mode occurs, and it not only has influence on the efficiency of wellbore construction, also can cause the fracture of drill string
The accidents such as destruction, have impact on the process of drillng operation.Just alleviate its meaning of extensional vibration in the vibration especially straight well of drill string
Become can not be ignored.If it is new that this for method of longitudinal vibration of drilling string harmful energy can be converted into driving down-hole torsion impact generating means
The energy, all can have positive meaning for alleviating the loss raising bit speed caused due to drillstring vibrations.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of dress that method of longitudinal vibration of drilling string is converted into drill bit torsional pulse
Put, by the internal recurring structure of device, the method for longitudinal vibration of drilling string being harmful in drilling process is converted into the circumference acting on drill bit
High-frequency torsional pulse vibrates, thus improves rate of penetration.
In order to solve above-mentioned technical problem, the invention provides one and method of longitudinal vibration of drilling string is converted into drill bit torsional pulse
Device, include extensional vibration assembly, reset torsion pass assembly and torsion occur transmission assembly；
Extensional vibration assembly includes that biography is shaken axle, and the described biography axle that shakes connects limited location set and flower is healthy and strong, and described biography is shaken at the end of axle
Portion connects vibration generator, described vibration generator is provided with and rushes ear；
Described reset torsion pass assembly includes spline shell, spring, transit joint, impacter shell, described spring upper
Portion contacts with the bottom of stop collar, and the bottom of described spring contacts with the top of transit joint；
Described torsion occurs transmission assembly to include jump bit, and described jump bit is arranged in drill headstock, described jump bit
Inside being provided with helicla flute, the ear that rushes of described vibration generator matches with the helicla flute of jump bit；
Being provided with internal spline in described spline shell, spline body matches with internal spline；
The lower end of described impacter shell is provided with housing spline, and the lower end of described drill headstock is provided with pedestal spline, housing flower
Key and pedestal spline match.
Further, described reset torsion pass assembly also includes sealing gland and spring shell；
The top of described spline shell is provided with sealing gland, the external diameter of described spring shell with link closely outside the face of cylinder
Footpath is identical；The top of described spring shell couples with spline outer casing screw, and the middle part of spring shell also has steam vent；Outside spring
The bottom of shell and the top thread connection of transit joint, the bottom of described transit joint couples with impacter outer casing screw；Described
Spring is arranged in spring shell, and described spring is back-moving spring, the top of described back-moving spring, bottom respectively with stop collar
Lower plane, the upper flat face of transit joint touch.
Further, described torsion occurs transmission assembly also to include thrust under thrust bearing stop collar, upper thrust bearing
Bearing and anti-lost piece；
Described impacter shell and drill headstock fix and are being internally formed cavity, and the inside of described cavity depends on from top to bottom
Secondary for thrust bearing stop collar, upper thrust bearing, jump bit and lower thrust bearing.
Further, described impacter shell is provided with four anti-lost grooves of housing and four bolts hole；
Described drill headstock is provided with four anti-lost grooves of pedestal, and anti-lost piece can be compressed in the anti-lost groove of pedestal, described pedestal
It is provided with little spring in anti-lost groove and is connected with anti-lost piece；
When the anti-lost groove of pedestal moves to form cavity at the anti-lost groove of housing, little spring release also pushes housing to by anti-lost piece
In anti-lost groove.
Further, the top of described thrust bearing positioning sleeve holds out against the shaft shoulder of transit joint, thrust bearing positioning sleeve
Bottom compresses upper thrust bearing.
Further, the outer upper ends of vibration generator is provided with rushes ear, and the outside lower end of vibration generator is provided with seal groove, rushes the upper of ear
End face to the length of seal groove more than the height of jump bit.
Further, the outside of described jump bit is provided with tup, and described helicla flute is two left-handed helicla flutes, described
Helicla flute is the slideway rushing ear.
Further, the height of described jump bit is identical with the stroke passing the axle that shakes, spiral fluted helical angle and jump bit
The anglec of rotation is identical.
The invention have the advantages that:
(1) achieve by the conversion of drill string axial vibration to drill bit circumference dither, and frequency of vibration can be according to existing
Field needs to regulate rotary speed and obtains, and the moment of torsion of drill string thus can be made to keep basicly stable and balance, reduce the torsion of drill string
Turn concussion, extend the service life of the matching component such as drill bit, drill string；
(2) high-frequency torsional pulse that this device produces directly acts on PDC drill bit, significantly eliminates the stick-slip of PDC drill bit
Phenomenon, not only protects drill bit but also improve rate of penetration；
(3) work capacity of this device derives from drillstring vibrations, and energy increases along with the increase of well depth, and device reduces
The harm that method of longitudinal vibration of drilling string produces；
(4) work of this device does not constitute impact to the circulation of drilling fluid, even if tool failures, creeps into operation and drilling fluid
Circulation also can proceed with；
(5) this device can be applicable among various drillng operation, including: under balance pressure drilling, air drilling and balanced drilling
Deng；
(6) this apparatus structure is simple, stable performance, and use process will not bring additional risk for drillng operation.
Accompanying drawing explanation
Fig. 1 is the device initial position figure that method of longitudinal vibration of drilling string is converted into drill bit torsional pulse；
Fig. 2 is the device that method of longitudinal vibration of drilling string is converted into drill bit torsional pulse, state diagram when bearing impulsive force under maximum；
Fig. 3 is the Local map of Fig. 1；
Fig. 4 is the Local map of Fig. 2；
Fig. 5 is to pass the axle schematic diagram that shakes；
Fig. 6 is the A-A generalized section in Fig. 1；
Fig. 7 is the C-C generalized section in Fig. 1；
Fig. 8 is the D-D generalized section in Fig. 1；
Fig. 9 is the generalized section of vibration generator；
Figure 10 is the top view of jump bit；
Figure 11 is the generalized section of jump bit；
Figure 12 is the B-B generalized section in Fig. 1；
Figure 13 is the E-E generalized section in Fig. 2；
In figure: 1, pass and shake axle, 101, the face of cylinder of linking closely, 102, sliding sealing surface, 103, spline body, 104, spacing screw thread,
105, the spring inner support face of cylinder, 106, connect screw thread, 2, sealing gland, 3, spline chamber seal assembly, 4, spline shell, 5, limit
Position set, 6, spring shell, 7, spring, 8, spring cavity seal assembly, 9, transit joint, 10, parting seal, 11, impacter shell,
12, thrust bearing stop collar, 13, sealing ring, 14, upper thrust bearing, 15, vibration generator, 1501, rush ear, 1502, seal groove, 16,
Jump bit, 1601, tup, 1602, helicla flute, 17, lower thrust bearing, 18, vibration generator sealing ring, 19, drill headstock, 20, drill bit
Seat sealing ring, 21, anti-lost piece, 22, housing spline, 23, pedestal spline, 24, little spring, 25, bolt hole, 26, positive shock surface,
27, anti-shock surface, 28, the anti-lost groove of housing, 29, the anti-lost groove of pedestal.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art is permissible
It is better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As Figure 1-4, the present invention provides a kind of device that method of longitudinal vibration of drilling string is converted into drill bit torsional pulse, bag
Include extensional vibration assembly, reset torsion pass assembly and torsion and transmission assembly has occurred.
Extensional vibration assembly includes that biography is shaken axle 1, and the described biography axle 1 that shakes connects limited location set 5 and flower is healthy and strong 103, and described biography is shaken
The bottom of axle 1 connects vibration generator 15, described vibration generator 15 is provided with and rushes ear 1501.
Described reset torsion pass assembly includes spline shell 4, spring 7, transit joint 9, impacter shell 11, described spring
The top of 7 contacts with the bottom of stop collar 5, and the bottom of described spring 7 contacts with the top of transit joint 9.Biography shakes axle 1 can
, in the internal chamber of reset torsion pass assembly, to move axially certain distance, its distance moved up is by the limit of stop collar 5
System, its distance moved down is compressed quantitative limitation by spring 7.
Described torsion occurs transmission assembly to include jump bit 16, and described jump bit 16 is arranged in drill headstock 19, described
Being provided with helicla flute 1602 in jump bit 16, the helicla flute 1602 rushing ear 1501 and jump bit 16 of described vibration generator 15 matches
Close.
Being provided with internal spline in described spline shell 4, spline body 103 matches with internal spline, and the rotation of the axle 1 that biography shaken is turned round
Square passes to reset torsion pass assembly, and the lower end of described impacter shell 11 is provided with housing spline 22, the lower end of described drill headstock 19
It is provided with pedestal spline 23, housing spline 22 and pedestal spline 23 to match, rotation torque is passed to drill headstock 19, makees further
For drill bit.
When drill string vibrates downwards, vibration generator 15 occurs transmission assembly to transport downwards relative to reset torsion pass assembly and torsion
Dynamic, owing to the ear 1501 that rushes on vibration generator 15 is positioned in the helicla flute 1602 on jump bit 16, rush ear when vibration generator 15 drives
1501 oppress jump bit helicla flute 1602 when moving downward, thus promote jump bit 16 to produce dextrorotation in limited space
Turn.
When rushing ear 1501 and running to certain position, the now positive shock surface 26 drill hammer seat 19 of jump bit 16, drill bit
Seat 19 also produces circumference torsion impact vibration while bearing TORQ.
When drill string is under spring 7 acts on, and when upwards vibrating, vibration generator 15 passes relative to reset torsion pass assembly and torsion
Passing assembly to move upward, the ear 1501 that rushes on vibration generator 15 promotes jump bit 16 to produce rotation counterclockwise in limited space,
The now anti-shock surface 27 drill hammer seat 19 of jump bit 16.
By the periodic vibration up and down of drill string, it is achieved that transported by the rotation of the jump bit 16 that moves up and down of vibration generator 15
Dynamic, thus produce torsional pulse, reach to alleviate PDC drill bit and crept into high stick-slip phenomenon when grinding stratum, alleviated owing to boring
The harm that post extensional vibration produces, improves rate of penetration.
As it is shown in figure 5, described biography is shaken, axle 1 is provided with elongated circular hole along its axis direction, and this circular hole crosses stream for drilling fluid；
Biography axle 1 top that shakes is with drill collar button, for connecting the BHA on top；The shake outside of axle 1 of described biography is depended on to bottom by top
Secondary for link closely the face of cylinder 101, sliding sealing surface 102, spline body 103, in the spacing screw thread 104 connecting stop collar, spring
Support the face of cylinder 105, for connecting the connection screw thread 106 of vibration generator, in the present embodiment, in order to meet the intensity of instrument, described
Sliding sealing surface 102 is the chromium plating face of cylinder, and the diameter of sliding sealing surface 102 is less than the diameter on the face of cylinder 101 of linking closely；Spline body
The tip diameter of 103 is equal with sliding sealing surface 102 external diameter, and the root diameter of spline body 103 is more than spacing screw thread 104
Big footpath；The path of spacing screw thread 104 is more than the diameter on the spring inner support face of cylinder 105；Connect the external diameter of screw thread 106 less than spring
The diameter on the inner support face of cylinder 105.
As shown in Figure 1-2, described reset torsion pass assembly includes sealing gland 2, spline shell 4, spring shell 6, spring
7, transit joint 9, impacter shell 11, sealing gland 2 is arranged on the top of spline shell 4, in the present embodiment, spline shell 4
It is thread connection with sealing gland 2.
In the present embodiment, described spline shell 4 is cylindrical shell, and the top outside spline shell 4 is that sealing gland connects
Connect external screw thread, middle part is the face of cylinder, bottom is that spring shell connects external screw thread；Top inside spline shell 4 be righting cylinder,
Bottom is internal spline, and the internal diameter of righting cylinder is slightly larger than the external diameter of sliding sealing surface 102
As shown in Figure 6, internal spline matches with the spline body 103 passing the axle 1 that shakes, and forms spline lubrication sap cavity, and biography is shaken
The rotation torque of axle 1 passes to reset torsion pass assembly, and passing the axle 1 that shakes can slide up and down relative to spline shell 4；In spline shell 4
Portion has oil filler point, and oil filler point installs oil filler point plug in injecting lubricating fluid, oil filler point in spline lubrication sap cavity, is used for
Prevent lubricating fluid from flowing out.
The top inner side of spline shell 4 is provided with spline chamber seal assembly 3, and spline chamber seal assembly 3 is used for preventing spline from moistening
Lubricating oil in Synovial cavity flows into annular space.
The external diameter of sealing gland 2 is equal with the external diameter on the face of cylinder 101 of linking closely, and the top of sealing gland 2 has circular hole, this circle
The diameter in hole is slightly larger than the external diameter of sliding sealing surface 102, and this circular hole is formed with sliding sealing surface 102 and seals the gap allowed.
The inside sidewalls of sealing gland 2 is provided with end cap screw thread, outside sealing gland 2 is by end cap screw thread and spline shell 4
Thread connection；Spline chamber seal assembly 3 can be pressed in spline shell 4, in preventing spline lubrication sap cavity by sealing gland 2
Spline chamber seal assembly 3 is released by lubricating oil.
As shown in Figure 1-2, in the present embodiment, described spring shell 6 is cylindrical shell, and described spring 7 is arranged on spring
In shell 6, the external diameter of described spring shell 6 is identical with the external diameter on the face of cylinder 101 of linking closely.
Top inside spring shell 6 be upper screw thread, middle part be spring outer support face, bottom be lower screw thread；Described spring
The top of shell 6 and spline shell 4 thread connection, the bottom of spring shell 6 and transit joint 9 thread connection, spring outer support
The internal diameter in face is more than spring diameter 2-6mm；Have steam vent in the middle part of spring shell 6, in spline lubrication sap cavity, inject lubrication
During liquid, steam vent, for being discharged by the air within spline lubrication sap cavity, installs steam vent plug, steam vent plug in steam vent
For preventing lubricating fluid from flowing out.
Described spring 7 is back-moving spring, the top of described back-moving spring, bottom respectively with lower plane, the transition of stop collar 5
The upper flat face of joint 9 touches, and back-moving spring is for the reset of device entirety；Spring 7 uses helical spring and liquid spring
Combination or the combination of disk spring and liquid spring.
As shown in Figure 1-2, in the present embodiment, described transit joint 9 is cylindrical shell, and the top outside it is spring shell
Connect screw thread, middle part is the joint face of cylinder, bottom is that impacter shell connects screw thread, and inner side is joint inner cylinder face, described mistake
Cross top and spring shell 6 thread connection of joint 9, the bottom of transit joint 9 and impacter shell 11 thread connection.
The diameter of joint inner cylinder face slightly larger than the external diameter on the spring inner support face of cylinder 105, the diameter on the joint face of cylinder with
The face of cylinder 101 external diameter that links closely is equal, and joint inner cylinder face is respectively arranged at two ends with two seals groove up and down, is provided with in the seal groove of upper end
Spring cavity seal assembly 8, is provided with parting seal 10 in the seal groove of lower end.
As shown in Figure 1-2, the external diameter of stop collar 5 is slightly less than the internal diameter in spring shell 6 spring outer support face, stop collar 5
External diameter is more than the diameter of spline shell 4 spline basic circle (i.e. spline valley circle), and in trip-out process, stop collar 5 is spline shell 4
Thering is provided power upwards, the bottom surface of stop collar 5 is the upper supporting surface of spring 7.
Described torsion occurs transmission assembly to include thrust bearing stop collar 12, upper thrust bearing 14, jump bit 16, stop down
Thrust bearing 17, drill headstock 19, anti-lost piece 21；
As Figure 1-4, in the present embodiment, described impacter shell 11 is cylindrical shell, outside impacter shell 11
Footpath is equal with the face of cylinder 101 external diameter that links closely；Its top and transit joint 9 thread connection.As shown in Figure 8, described impacter shell
11 lower end uniform 4 the housing splines 22 of circumference, uniform 4 the pedestal splines 23 of drill headstock 19 lower end outside, housing spline 22 and seat
Body spline 23 shaft shoulder location matched in clearance, is used for transmitting TORQ and coordinates with pedestal spline 23 to drill bit, housing spline 22
By anti-lost piece 21 location.
As shown in Figure 7,8, impacter shell 11 top circumference is provided with through hole, when charging-up lubricant oil and charging-up lubricant oil
Installing through hole plug in discharging the air in cavity, through hole, through hole plug is used for preventing outflow of lubrication oil；Impacter shell 11 He
It is internally formed cavity after both drill headstocks 19 are fixing, in cavity, is followed successively by thrust bearing stop collar 12, upper thrust from top to bottom
Bearing 14, jump bit 16 and lower thrust bearing 17.
As Figure 1-4, the external diameter of described thrust bearing positioning sleeve 12 is slightly less than impacter shell 11 internal diameter, and its internal diameter is big
Cylinder in the spring inner support face of cylinder 105；The top of described thrust bearing positioning sleeve 12 holds out against the shaft shoulder of transit joint 9, only
The bottom of thrust bearing positioning sleeve 12 compresses upper thrust bearing 14, and thrust bearing stop collar 12 is for fixing upper thrust bearing 14.
As it is shown in fig. 7, described impacter shell 11 is provided with four anti-lost grooves of housing 28 and four bolts hole 25；Described brill
Headstock 19 is provided with four anti-lost grooves of pedestal 29, and anti-lost piece 21 can be compressed in the anti-lost groove of pedestal 29, the anti-lost groove of described pedestal
It is provided with little spring 24 in 29 and is connected with anti-lost piece 21；Move to be formed at the anti-lost groove of housing 28 cavity at the anti-lost groove of pedestal 29
Time, little spring 24 discharges and pushes to anti-lost piece 21 in the anti-lost groove of housing 28.When extracting tool, by bolt hole 25 by anti-lost
Block 21 is compressed to be fully located in the anti-lost groove of pedestal 29, impacter shell 11 and drill headstock 19 is axially offset simultaneously and reaches dismounting
Purpose.
As it is shown in figure 9, the outer upper ends of vibration generator 15 is provided with rushes ear 1501, the outside lower end of vibration generator 15 is provided with sealing
Groove, rushes the upper surface of ear 1501 length to seal groove more than the height of jump bit 16, with ensure vibration generator 15, drill headstock 19,
Impacter shell 11 and transit joint 9 form the seal of cavity.
Such as Figure 10, shown in 11, the outside of described jump bit 16 is provided with tup 1601, and the inside of described jump bit 16 is arranged
Having two left-handed helicla flutes 1602, described helicla flute 1602 is the slideway rushing ear 1501.The height of described jump bit 16 and biography
The stroke of axle 1 of shaking is identical, and the helical angle of helicla flute 1602 is identical with the anglec of rotation of jump bit 16.
Jump bit 16 be located at thrust bearing 14, drill headstock 19 and lower thrust bearing 17 composition cavity in, and can around in
Mandrel rotates to an angle.
When device is installed, rush ear 1501 upper surface contact with upper thrust bearing 14 lower surface and with the upper surface of jump bit 16
It is in same plane；During device work, the vibration generator 15 being only capable of axially-movable moves up and down, and vibration generator 15 upper punch ear 1501 is oppressed
Jump bit helicla flute 1602 promotes jump bit 16 to produce in limited space to rotate in a circumferential direction.
As shown in Figure 1,3, during device original state, the upper surface rushing ear 1501 upper surface and jump bit 16 of vibration generator 15
Contact；As shown in Figure 2,4, device is when by impulsive force under maximum, and vibration generator 15 rushes ear 1501 lower surface and jump bit 16 times
End face is parallel.
As Figure 1-4, described drill headstock 19 is placed in the inside of impacter shell 11, and drill headstock 19 is internal is upper and lower UNICOM
Hollow structure, top has and the jump bit 16 corresponding cavity of profile, is provided with jump bit 16 and lower thrust in cavity from top to bottom
Bearing 17；Drill headstock 19 top is equipped with thrust bearing 14, and lower thread couples drill bit；Upper thrust bearing 14 upper, drill headstock
19 under, form cavity after both are fixing, as shown in Figure 12,13, cavity inside has vibration generator 15 and impact the most successively
Hammer 16；Seal groove is arranged at drill headstock 19 bottom, is provided with drill headstock sealing ring 20, vibration generator 15 is provided with vibration generator close in seal groove
Seal 18.
Its operation principle of the present invention is as follows:
As Figure 1-5, TORQ by biography shake the spline body 103 of axle 1, spline shell 4 internal spline, spline shell 4,
Spring shell 6, transit joint 9, impacter shell 11, drill headstock 19 transmit to drill bit.
When drill string vibrates downwards, vibration generator 15 occurs transmission assembly to transport downwards relative to reset torsion pass assembly and torsion
Dynamic, owing to the ear 1501 that rushes on vibration generator 15 is positioned in the left-turn spiral groove 1602 on jump bit 16, when vibration generator 15 drives punching
Oppress jump bit helicla flute 1602 when ear 1501 moves downward, thus promote jump bit 16 to produce in limited space clockwise
Rotate.
When rushing ear 1501 lower surface and moving to lower thrust bearing 17 upper surface, jump bit 16 state the most as shown in Figure 12
Moving to state shown in Figure 13, the now positive shock surface 26 drill hammer seat 19 of jump bit 16, this motion makes drill headstock 19 exist
Circumference torsion impact vibration is also produced while bearing TORQ.
When drill string upwards vibrates, vibration generator 15 occurs transmission assembly upwards to transport relative to reset torsion pass assembly and torsion
Dynamic, due to thrust bearing stop collar 12 and the effect of upper thrust bearing 14, jump bit 16 can not move upward, now vibration generator
The ear 1501 that rushes on 15 moves upward relative to dither transmission assembly and oppresses jump bit spiral shell in left-turn spiral groove 1602
Spin slot 1602, thus promote jump bit 16 to produce rotation counterclockwise in limited space.Move to when rushing ear 1501 upper surface
During upper thrust bearing 14 lower surface, jump bit 16 state motion the most as shown in Figure 13 to state shown in Figure 12, now jump bit
The anti-shock surface 27 drill hammer seat 19 of 16.
Embodiment described above is only the preferred embodiment lifted by absolutely proving the present invention, the protection model of the present invention
Enclose and be not limited to this.The equivalent that those skilled in the art are made on the basis of the present invention substitutes or conversion, all in the present invention
Protection domain within.Protection scope of the present invention is as the criterion with claims.
Claims (7)
1. the device that method of longitudinal vibration of drilling string is converted into drill bit torsional pulse, it is characterised in that include extensional vibration total
There is transmission assembly in one-tenth, reset torsion pass assembly and torsion；
Extensional vibration assembly includes that biography is shaken axle, and the described biography axle that shakes connects limited location set and spline body, and the shake bottom of axle of described biography connects
It is connected to vibration generator, described vibration generator is provided with and rushes ear；
Described reset torsion pass assembly includes spline shell, spring, transit joint, impacter shell, the top of described spring with
The bottom of stop collar contacts, and the bottom of described spring contacts with the top of transit joint；
Described torsion occurs transmission assembly to include jump bit, and described jump bit is arranged in drill headstock, sets in described jump bit
Being equipped with helicla flute, the ear that rushes of described vibration generator matches with the helicla flute of jump bit；
Being provided with internal spline in described spline shell, spline body matches with internal spline；
The lower end of described impacter shell is provided with housing spline, and the lower end of described drill headstock is provided with pedestal spline, housing spline and
Pedestal spline matches；
Described reset torsion pass assembly also includes sealing gland and spring shell；The top of described spline shell is provided with sealing pressure
Lid；The top of described spring shell couples with spline outer casing screw, and the middle part of spring shell also has steam vent；Spring shell
Bottom and the top thread connection of transit joint, the bottom of described transit joint couples with impacter outer casing screw；Described spring
Being arranged in spring shell, described spring is back-moving spring, and the top of described back-moving spring, bottom are put down with the lower of stop collar respectively
Face, the upper flat face of transit joint touch.
The device that method of longitudinal vibration of drilling string is converted into drill bit torsional pulse the most according to claim 1, it is characterised in that institute
Stating torsion occurs transmission assembly also to include thrust bearing stop collar, upper thrust bearing, lower thrust bearing and anti-lost piece；Described punching
Hitting device shell fix with drill headstock and be internally formed cavity, the inside of described cavity is followed successively by thrust bearing limit from top to bottom
Position set, upper thrust bearing, jump bit and lower thrust bearing.
The device that method of longitudinal vibration of drilling string is converted into drill bit torsional pulse the most according to claim 2, it is characterised in that institute
State impacter shell and be provided with four anti-lost grooves of housing and four bolts hole；
Described drill headstock is provided with four anti-lost grooves of pedestal, and anti-lost piece can be compressed in the anti-lost groove of pedestal, and described pedestal is anti-lost
It is provided with little spring in groove and is connected with anti-lost piece；
When the anti-lost groove of pedestal moves to form cavity at the anti-lost groove of housing, little spring release to push housing to by anti-lost piece anti-lost
In groove.
The device that method of longitudinal vibration of drilling string is converted into drill bit torsional pulse the most according to claim 3, it is characterised in that institute
The top stating thrust bearing positioning sleeve holds out against the shaft shoulder of transit joint, and the bottom of thrust bearing positioning sleeve compresses upper thrust bearing.
The device that method of longitudinal vibration of drilling string is converted into drill bit torsional pulse the most according to claim 4, it is characterised in that rise
The outer upper ends of device of shaking is provided with rushes ear, and the outside lower end of vibration generator is provided with seal groove, rushes the upper surface length to seal groove of ear
Height more than jump bit.
The device that method of longitudinal vibration of drilling string is converted into drill bit torsional pulse the most according to claim 5, it is characterised in that institute
The outside stating jump bit is provided with tup, and described helicla flute is two left-handed helicla flutes, and described helicla flute is the slideway rushing ear.
The device that method of longitudinal vibration of drilling string is converted into drill bit torsional pulse the most according to claim 6, it is characterised in that institute
The height stating jump bit is identical with the stroke passing the axle that shakes, and spiral fluted helical angle is identical with the anglec of rotation of jump bit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410755204.6A CN104499941B (en) | 2014-12-11 | 2014-12-11 | Method of longitudinal vibration of drilling string is converted into the device of drill bit torsional pulse |
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| CN201410755204.6A CN104499941B (en) | 2014-12-11 | 2014-12-11 | Method of longitudinal vibration of drilling string is converted into the device of drill bit torsional pulse |
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| CN104499941B true CN104499941B (en) | 2016-10-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150348B (en) * | 2015-04-09 | 2018-04-10 | 中国石油化工股份有限公司 | A kind of mechanical torsional impact drilling tool |
| CN105927145B (en) * | 2016-04-22 | 2018-01-09 | 中石化石油机械股份有限公司研究院 | Motor-driven drilling speed-raising system |
| CN106050177B (en) * | 2016-06-16 | 2018-11-02 | 西南石油大学 | A kind of anti-sticking slider power churn drilling tools |
| CN106285464B (en) * | 2016-09-26 | 2018-07-06 | 中国石油大学(华东) | A kind of instantaneous negative pressure underbalance well drilling plant and method |
| CN108729869B (en) * | 2018-07-16 | 2023-11-14 | 长江大学 | Underground seismic source generator |
| CN109555492B (en) | 2018-11-22 | 2020-01-14 | 中国石油大学(华东) | Device and method for reducing pressure of well bottom annular drilling fluid based on drill column vibration |
| CN109681114B (en) * | 2018-12-21 | 2023-09-01 | 武汉亿斯达工具有限公司 | Bidirectional high-frequency torsion impactor applied to PDC drill bit acceleration |
| CN109751040B (en) * | 2019-01-14 | 2021-07-09 | 东北大学 | Drilling self-excited vibration and stick-slip vibration simulation experiment device |
| CN110671054A (en) * | 2019-09-25 | 2020-01-10 | 四川宏华石油设备有限公司 | Resistance reducing device |
| CN112576183B (en) * | 2019-09-29 | 2023-04-28 | 中国石油化工股份有限公司 | Screw drilling tool |
| CN114427349B (en) * | 2022-04-01 | 2022-07-01 | 天津合力北方能源技术有限公司 | Jar for oil drilling |
| CN117738595A (en) * | 2022-09-15 | 2024-03-22 | 中国石油天然气集团有限公司 | Drilling shock-absorbing torsion drilling tool, drilling device and application |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463709B (en) * | 2009-01-08 | 2011-03-23 | 西南石油大学 | Torsional impact drilling tool |
| CN102733756B (en) * | 2012-07-23 | 2014-04-09 | 中国石油大学(华东) | Vibration and pressure well drilling tool |
| CN102747957B (en) * | 2012-07-23 | 2014-11-05 | 中国石油大学(华东) | Drilling tool for stimulating vibration of drill column |
| US9366100B1 (en) * | 2013-01-22 | 2016-06-14 | Klx Energy Services Llc | Hydraulic pipe string vibrator |
| CN103485726B (en) * | 2013-10-11 | 2015-09-16 | 西南石油大学 | A kind of device for weakening bottomhole stick slip vibration and control method thereof |
| CN204326969U (en) * | 2014-12-11 | 2015-05-13 | 中国石油大学(华东) | Method of longitudinal vibration of drilling string is converted into the device of drill bit torsional pulse |
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