CN106939762A - A kind of brill deep-well underground platform of independence energy supply - Google Patents
A kind of brill deep-well underground platform of independence energy supply Download PDFInfo
- Publication number
- CN106939762A CN106939762A CN201710184508.5A CN201710184508A CN106939762A CN 106939762 A CN106939762 A CN 106939762A CN 201710184508 A CN201710184508 A CN 201710184508A CN 106939762 A CN106939762 A CN 106939762A
- Authority
- CN
- China
- Prior art keywords
- bar
- electromagnetism
- drill bit
- middle level
- expansion link
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B4/04—Electric drives
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
Abstract
The invention belongs to drilling technology field, more particularly to a kind of brill deep-well underground platform of independence energy supply, it includes drill bit drilling rod, drill bit, pressure support plate, pressure electromagnetism expansion link, attachment structure, detent mechanism, motor, wherein drill bit passes through drill bit drilling rod, attachment structure, machine shaft and motor connection, drill bit drilling rod is arranged on pressure support plate, and pressure electromagnetism expansion link adjusts the distance of pressure support plate and electromagnetism expansion link support plate by adjusting its length；First detent mechanism and the second detent mechanism make motor be at institute's drilled well bore center；The flexible of electromagnetism expansion link is positioned in detent mechanism can adjust the contact of the radial distance of arc plate, control arc plate and well bore, and then can pass through contact limiting motor housing own rotation of the arc plate with well bore；Motor and drill bit Integrated design are added into independent energy supplying system on drill bit in the present invention, it is possible to increase general applicability of the drill bit in complex drilling job task, with higher practicality.
Description
Art
The invention belongs to the brill deep-well underground platform in drilling technology field, more particularly to a kind of independence energy supply.
Background technology
Current drilling equipment is transmitted power on the drill bit of underground frequently with power output on well by drill string.For
It is required that the depth chin-deep of institute's drilling well, it would be desirable to the drill string of extra long distance, it is spliced often through many drill strings.It is deep when boring
When well is directed drilling, well bore axis will have one or more flex points, and drill string will need to consider the drive mechanism at flex point,
Improve the complexity of drilling equipment.
For drill bit, the drill bit used by current drilling well is mostly monoblock cast or forging, is had for different depth
There is a drilling well of the lithosphere of different hardness, or the harder drill bit of single use or changed in real time according to the lithosphere bored
Drill bit has reached the purpose of drilling well.The problem of both of which has certain, for the former when boring softer lithosphere it is more or less
Abrasion are generated to drill bit, spent cost with relatively soft drill bit than being bored spent by softer lithosphere during this
Cost is high, does not calculate very much；For the latter, often the raising of time cost is caused by more bit change.
For push rod, current putting technique mainly has two kinds, a kind of hydraulic stem for hydraulic-driven, and another is logical
Cross motor-driven gear and screw rod is realized.Motor is on the one hand needed to drive oil pump to produce the hydraulic oil with pressure for the former,
Just because of tending to oil leakage phenomenon occur with oil pressure, higher is required to oil cylinder technology, Sealing Technology, causes cost higher,
Mechanism is complicated；For the latter, driven using motor, structure is simple compared with the former, but because used engaging for gear and screw rod
Transmission, when load changing, it is easy to fatal destruction is formed to push rod, that is, it is narrower using scope.
A kind of brill deep-well underground platform of independence energy supply of present invention design solves as above problem.
The content of the invention
To solve drawbacks described above of the prior art, the present invention discloses a kind of brill deep-well underground platform of independence energy supply, it
Realized using following technical scheme.
A kind of brill deep-well underground platform of independence energy supply, it is characterised in that：It include drill bit drilling rod, drill bit, machine shaft,
Press support plate, pressure electromagnetism expansion link, attachment structure, the second detent mechanism, motor, the first detent mechanism, electromagnetism expansion link branch
Plate, wherein drill bit are arranged on drill bit drilling rod one end, and drill bit drilling rod is arranged on pressure support plate central hole, drill bit drilling rod by bearing
It is connected by attachment structure with machine shaft；Three pressure electromagnetism expansion links are circumferential uniform on the upside of pressure support plate, electromagnetism
Expansion link support plate is arranged on three pressure electromagnetism expansion links；Second detent mechanism is arranged on the upside of electromagnetism expansion link support plate, electricity
Machine is arranged on the second detent mechanism, and the first detent mechanism is arranged on the upside of motor；Above-mentioned first detent mechanism and the second positioning
Mechanism has identical structure, and its mounting means and position are mutually symmetrical with motor center plane.
Above-mentioned first detent mechanism includes arc plate, positioning electromagnetism expansion link, motor support plate, expansion link overcoat, expansion link
Overcoat top board, wherein motor support plate are arranged on motor one end, and three expansion link overcoats are uniformly arranged on motor support plate, for every
One expansion link overcoat, expansion link jacket internal is provided with positioning electromagnetism expansion link, and positioning electromagnetism expansion link one end is provided with circle
Arc plate, expansion link overcoat top is provided with expansion link overcoat top board.
Above-mentioned attachment structure include fixture block, connection in rod guide, connection in bar, connection loop bar, adapter sleeve rod guide groove, even
Connecting sleeve lever neck, fixture block ring, fixture block ring guide groove, wherein bar is arranged on drill bit drilling rod one end in connection, it is right on bar in connection
What is claimed is provided with rod guide in two connections, two fixture blocks be symmetrically installed in connection bar top and two fixture block planes of symmetry with
The rod guide plane of symmetry is vertical in two connections；Connect loop bar and be arranged on drill string one end, connect and two symmetrical point is provided with inside loop bar
The adapter sleeve rod guide groove of cloth and two symmetrical connection loop bar necks, the plane of symmetry and two of two adapter sleeve rod guide grooves
The plane of symmetry of bar connection loop bar neck is vertical；Rod guide is slidably matched with adapter sleeve rod guide groove in connection, fixture block and adapter sleeve
Bar neck is slidably matched, and symmetrical on fixture block ring to be provided with two fixture block ring guide grooves, fixture block ring is arranged on adapter sleeve rod end surface and two
Rod guide is slidably matched in individual fixture block ring guide groove is connected with two.
Above-mentioned pressure electromagnetism expansion link with positioning electromagnetism Telescopic rod structure it is identical, for pressure electromagnetism expansion link, it
Including electromagnetism interior bar base plate, electromagnetism interior bar, electromagnetism outer bar, electromagnetism outer bar top board, u-shaped sliding block, electromagnetic unit, unit conducting strip,
Face, outer bar arcuate are led in interior bar conducting strip, interior outer bar conducting strip, outer bar conducting strip, interior bar arcuate guide rail, interior bar arcuate guide rail
Face in rail, outer bar arcuate guide rail, wherein electromagnetism interior bar base plate are arranged in electromagnetism interior bar bottom, electromagnetism interior bar with symmetrical
Interior bar arcuate guide rail；There is electromagnetism outer bar mounting of roof plate symmetrical outer bar to bend on electromagnetism outer bar top, electromagnetism outer bar
Type guide rail, electromagnetism outer bar is arranged on outside electromagnetism interior bar by the cooperation outside outer bar arcuate guide rail inner face and interior bar arcuate guide rail
Side；It is provided with interior bar arcuate guide rail in electromagnetism interior bar on face in the outer bar arcuate guide rail in interior bar conducting strip, electromagnetism outer bar
Outer bar conducting strip is installed on face, is provided with the electromagnetism interior bar top end face of interior bar conducting strip and outer bar conducting strip junction
Interior outer bar conducting strip；Interior outer bar conducting strip one end is fixedly connected interior bar conducting strip, and the other end is contacted and external with outer bar conducting strip
Bar conducting strip applies certain pressure；Electromagnetic unit both sides are symmetrically installed with two u-shaped sliding blocks, two u-shaped sliding block u-shaped concave internals
Be mounted on unit conducting strip, u-shaped sliding block coordinates with interior bar arcuate guide rail, outer bar arcuate slide, unit conducting strip with it is interior
Bar conducting strip, outer bar conducting strip sliding contact；U-shaped sliding block is passed sequentially through above and below multiple electromagnetic units installed in electromagnetism interior bar and electricity
In the space of magnetic outer bar composition；Above-mentioned electromagnetic unit includes unit housings, unit top board, unit baseboard, coil, conducting magnetic column, its
Middle conducting magnetic column one end is provided with unit baseboard, and the other end is provided with unit top board, and conductive coil is wrapped on conducting magnetic column, cell enclosure
Body is arranged on unit baseboard, and conducting magnetic column, coil are respectively positioned in unit housings；Two u-shaped sliding blocks are symmetrically mounted on unit housings
Outside, coil two ends are connected with two unit conducting strips being symmetrically installed respectively.
Above-mentioned drill bit includes drill bit drilling rod, outer layer second is supported, outer layer first is supported, drilling head, outer layer kerve, outer layer are bored
Ring, middle level jumping through rings, middle level kerve, internal layer bore disk, internal gear, planetary gear, planetary gear shaft, the support of middle level the 3rd, middle level the
Two supports, middle level first are supported, the spring bearing of outer layer first, the spring bearing of middle level the 3rd, and wherein internal layer bores disk upper end and is arranged on
Drill bit drilling rod lower end, internal layer to bore and be provided with multiple drilling heads on the downside of disk；Middle level jumping through rings is arranged in the support of middle level first, middle level the
One support is arranged in the support of middle level second, and the support of middle level second is arranged in the support of middle level the 3rd, and three planetary gears pass through
Respective planetary gear shaft is circumferentially uniformly mounted to the support upper end of middle level the 3rd, and the support of middle level the 3rd is supported by middle level the 3rd
Bearing is arranged on drill bit drilling rod；There is flute profile in planetary gear installed position on drill bit drilling rod, drill bit drilling rod passes through flute profile
Engaged with three planetary gears, multiple drilling heads are installed on the downside of the jumping through rings of middle level；Outer layer jumping through rings is arranged in the support of outer layer first,
The support of outer layer first is arranged in the support of outer layer second, and the support of outer layer second inner side is provided with internal gear, internal gear and three rows
Star gear external toothing, the support of outer layer first is arranged in the support of middle level the 3rd by the spring bearing of outer layer first, under outer layer jumping through rings
Side is provided with multiple drilling heads.
As the further improvement of this technology, limit sliding chutes are also symmetrically provided with above-mentioned electromagnetism outer bar, and in each limit
A position-limiting cover is respectively installed on the chute of position, electromagnetism interior bar top is symmetrically installed with two limited blocks, and two limited blocks exist respectively
Slided in two limit sliding chutes.
As the further improvement of this technology, above-mentioned conducting magnetic column, unit top board and unit baseboard are permeability magnetic material.
As the further improvement of this technology, above-mentioned electromagnetism interior bar and electromagnetism outer bar are non-magnet material.
As the further improvement of this technology, sealing ring is also equipped with above-mentioned drill bit drilling rod, sealing ring is located at planet tooth
Do not contact on the upside of wheel and with planetary gear.
As the further improvement of this technology, any one that above-mentioned planetary gear number can be for 2, in 3,4,5.
It is circumferential on the downside of above-mentioned middle level jumping through rings to be uniformly provided with multiple middle level kerves and middle level as the further improvement of this technology
Kerve installation site is located between the installation site of drilling head；It is circumferential on the downside of outer layer jumping through rings to be uniformly provided with multiple outer layer kerves and outer
Layer kerve installation site is located between the installation site of drilling head.
As the further improvement of this technology, also circumferentially being uniformly provided with outer layer side cuts head for above-mentioned outer layer jumping through rings side.
Relative to traditional drilling technology, drill bit passes through drill bit drilling rod, attachment structure, machine shaft and motor in the present invention
Connection, drill bit drilling rod is arranged on pressure support plate, and pressure electromagnetism expansion link is by adjusting its length regulation pressure support plate and electricity
The distance of magnetic expansion link support plate；First detent mechanism and the second detent mechanism make motor be at institute's drilled well bore center；
The flexible of electromagnetism expansion link is positioned in detent mechanism can adjust the radial distance of arc plate, contact of the control arc plate with well bore
Pressure, and then contact limiting motor housing own rotation of the arc plate with well bore can be passed through；On the other hand when rock is to drill bit
When the resistance of application is excessive, arc plate is set to occur with well bore by adjusting the pressure of arc plate and well bore for the protection to drill bit
It is relative to slide, to offset the moment of torsion of motor application, while the intensity of well bore can be improved；It is in the present invention that motor is integrated with drill bit
Design adds independent energy supplying system on drill bit, it is possible to increase drill bit being generally applicable in complex drilling job task
Property, with higher practicality.
Relative to traditional drilling bit technology, drill bit drilling rod bores disk with internal layer and is connected in the present invention, drives internal layer to bore disk
Rotate；Middle level jumping through rings and three middle levels support the revolving part referred to as media layer damage that forms a whole, and it passes through middle level the 3rd and supported
Bearing is arranged on drill bit drilling rod, can be around the rotation of drill bit drilling rod；Outer layer jumping through rings and two outer layer supports form a whole
Revolving part is referred to as layer structure, is arranged on by the spring bearing of outer layer first in the support of middle level the 3rd, can surround middle level the 3rd
Support rotation.Drill bit drilling rod as sun gear, be provided with planetary middle level as planet carrier, the outer layer of internal gear is installed
Collectively constitute planet gear transmission；Three-decker constitutes three fast drill bits, and internal layer brill disk drilling speed is identical with drill bit drilling rod, in drilling rod rotation
Rotating fields are necessarily rotated with same rotational speed, and middle level and outer layer jumping through rings rotating speed are according to the rock resistance self-regulating rotary being each subject to
Speed, can play the purpose of protection drill bit；When layer structure by rock resistance much larger than the resistance that media layer damage is subject to when,
Media layer damage rotates, outer layer mechanism blockage, otherwise media layer damage is stuck, layer structure rotation；When middle level and layer structure by
Resistance it is similar, then double-layer structure can be rotated with opposite direction of rotation；The rotation relationship pole of China and foreign countries' double-layer structure holds
Being alternately rotated in the short time is easily formed, thus can more allow rock to loosen in being alternately rotated broken, adding drill bit makes
Use scope.With certain practical function.
Relative to traditional putting technique, electromagnetic unit is formed by coil winding conducting magnetic column in the present invention, works as coil electricity
Afterwards, conducting magnetic column both sides produce magnetic pole；Multiple electromagnetic units are connected, after energization, each electromagnetic unit produces magnetic pole, when each
When producing same pole between electromagnetic unit, repulsion is produced between electromagnetic unit, spacing is widened；When production between each electromagnetic unit
During raw mutual different pole, attracted each other between electromagnetic unit, hypotelorism.In design by multiple electromagnetic units be put into one closing
In the variable space of space length, the present invention is by using arcuate guide rail between the electromagnetism interior bar and electromagnetism outer bar of non-magnet material
Adjustable length space is nested to form, and is limited by the cooperation of the stopper slot on the limited block in electromagnetism interior bar and electromagnetism outer bar
Stroke between interior bar and outer bar；Conducting strip is mounted on face in arcuate guide rail in electromagnetism interior bar and electromagnetism outer bar, and
And connected between interior bar conducting strip and outer bar conducting strip by interior outer bar conducting strip in energization, foreign current connection electromagnetism interior bar
Interior bar conducting strip, when outer bar is slided, is conducted the current on outer bar conducting strip by interior outer bar conducting strip, interior bar conducting strip and
Outer bar conducting strip is contacted by the unit conducting strip with electromagnetic unit and foreign current is imported into electromagnetic unit, each electromagnetism list
Coil and conducting strip, power supply composition closed-loop path in member.The present invention realizes the flexible of bar by galvanomagnetic-effect, energy-conserving and environment-protective,
And substantially without easily worn part, with preferable practical function.
Brief description of the drawings
Fig. 1 is expansion link external structure distribution schematic diagram.
Fig. 2 is electromagnetic unit external structure schematic diagram.
Fig. 3 is electromagnetic unit internal structure schematic diagram.
Fig. 4 is coil winding schematic diagram.
Fig. 5 is electromagnetic unit structure top view.
Fig. 6 is expansion link overall structure top view.
Fig. 7 is electromagnetism interior bar and electromagnetism outer bar contact structures schematic diagram.
Fig. 8 is interior bar conducting strip and outer bar conducting strip scheme of installation.
Fig. 9 is interior outer bar conducting strip scheme of installation.
Figure 10 is limited block scheme of installation.
Figure 11 is position-limiting cover scheme of installation.
Figure 12 is expansion link sectional view.
Figure 13 is bit exterior structure distribution schematic diagram.
Figure 14 is drill bit polycrystalline substance schematic diagram.
Figure 15 is layer structure schematic diagram.
Figure 16 is that outer layer kerve and outer layer side cut header structure schematic diagram.
Figure 17 is media layer damage and planetary gear scheme of installation.
Figure 18 is middle level kerve and middle level internal structure schematic diagram.
Figure 19 is that internal layer bores tray bottom schematic diagram.
Figure 20 is endothecium structure schematic diagram.
Figure 21 is drill bit sectional view.
Figure 22 is independence energy supply underground platform structure schematic diagram.
Figure 23 is pressure electromagnetism Telescopic rod structure schematic diagram.
Figure 24 is detent mechanism scheme of installation.
Figure 25 is pressure electromagnetism expansion link support plate scheme of installation.
Figure 26 is detent mechanism schematic diagram.
Figure 27 is bar scheme of installation in connection.
Figure 28 is connection loop bar scheme of installation.
Figure 29 be connection in bar with being connected loop bar cooperation schematic diagram.
Figure 30 is fixture block ring scheme of installation.
Figure 31 is fixture block ring structure schematic diagram.
Label title in figure：1st, fixture block, 2, rod guide in connection, 3, bar in connection, 5, drill string, 6, connection loop bar, 7, even
Connecting sleeve lever guide groove, 8, connection loop bar neck, 9, fixture block ring, 10, fixture block ring guide groove, 11, drill bit drilling rod, 12, sealing ring,
13rd, outer layer second is supported, 14, outer layer first support, 15, drilling head, 16, outer layer side cut head, 17, outer layer kerve, 18, outer layer bores
Ring, 19, middle level jumping through rings, 20, middle level kerve, 22, internal layer bore disk, 23, internal gear, 24, planetary gear, 25, planetary gear shaft,
26th, middle level the 3rd is supported, 27, middle level second support, 28, middle level first support, 29, the spring bearing of outer layer first, 30, middle level the
Three spring bearings, 31, drill bit, 32, machine shaft, 33, pressure support plate, 34, pressure electromagnetism expansion link, 35, attachment structure, 36,
Second detent mechanism, 37, motor, the 38, first detent mechanism, 39, electromagnetism expansion link support plate, 44, arc plate, 45, positioning electromagnetism
Expansion link, 46, motor support plate, 47, expansion link overcoat, 51, expansion link overcoat top board, 55, electromagnetism interior bar base plate, 56, in electromagnetism
Bar, 57, position-limiting cover, 58, electromagnetism outer bar, 59, electromagnetism outer bar top board, 60, unit housings, 61, unit top board, 62, unit baseboard,
63rd, u-shaped sliding block, 64, unit conducting strip, 65, coil, 66, conducting magnetic column, 67, electromagnetic unit, 68, limited block, 69, interior bar it is conductive
Piece, 70, interior outer bar conducting strip, 71, outer bar conducting strip, 72, interior bar arcuate guide rail, face in 72-1, interior bar arcuate guide rail, 73, limit
Position chute, 74, outer bar arcuate guide rail, face in 74-1, outer bar arcuate guide rail.
Embodiment
As shown in figure 22, it includes drill bit drilling rod, drill bit, machine shaft, pressure support plate, pressure electromagnetism expansion link, connection
Structure, the second detent mechanism, motor, the first detent mechanism, electromagnetism expansion link support plate, wherein drill bit are arranged on drill bit drilling rod one
End, drill bit drilling rod is arranged on pressure support plate central hole by bearing, as shown in figure 24, and drill bit drilling rod passes through attachment structure and electricity
Machine rotating shaft is connected；As shown in figure 23, three pressure electromagnetism expansion links are circumferential uniform on the upside of pressure support plate, electromagnetism expansion link
Support plate is arranged on three pressure electromagnetism expansion links；As shown in Figure 22,25, the second detent mechanism is arranged on electromagnetism expansion link support plate
Upside, motor is arranged on the second detent mechanism, and the first detent mechanism is arranged on the upside of motor；Above-mentioned first detent mechanism and
Two detent mechanisms have identical structure, and its mounting means and position are mutually symmetrical with motor center plane.
As shown in figure 26, above-mentioned first detent mechanism includes arc plate, positioning electromagnetism expansion link, motor support plate, expansion link
Overcoat, expansion link overcoat top board, wherein motor support plate are arranged on motor one end, and three expansion link overcoats are uniformly arranged on motor branch
On plate, for each expansion link overcoat, expansion link jacket internal is provided with positioning electromagnetism expansion link, positioning electromagnetism expansion link one
End is provided with arc plate, and expansion link overcoat top is provided with expansion link overcoat top board.
As shown in figure 29, above-mentioned attachment structure includes bar, connection loop bar, adapter sleeve in rod guide, connection in fixture block, connection
Rod guide groove, connection loop bar neck, fixture block ring, fixture block ring guide groove, wherein as shown in figure 27, bar is bored installed in drill bit in connection
Bar one end, symmetrical on bar in connection to be provided with rod guide in two connections, two fixture blocks are symmetrically installed on bar in connection
The rod guide plane of symmetry is vertical in top and two fixture block planes of symmetry are connected with two；As shown in figure 28, connection loop bar, which is arranged on, bores
Two symmetrical adapter sleeve rod guide grooves and two symmetrical connection loop bar cards are provided with inside post one end, connection loop bar
Groove, the plane of symmetry of two adapter sleeve rod guide grooves is vertical with two planes of symmetry for being connected loop bar neck；As shown in figure 28, in connection
Rod guide is slidably matched with adapter sleeve rod guide groove, and fixture block is slidably matched with being connected loop bar neck, as shown in Figure 30,31, fixture block
Symmetrical on ring to be provided with two fixture block ring guide grooves, fixture block ring is arranged on adapter sleeve rod end surface and two fixture block ring guide grooves and two
Rod guide is slidably matched in connection.
In the present invention, adapter sleeve rod guide groove be connected in rod guide coordinate make connection loop bar drive connection in bar rotate,
When press the distance between support plate and detent mechanism change, inner rod guide is slided in loop bar guide groove, so as to extend
The length of attachment structure.It ensure that the requirement being driven during drill bit movement.
Drill bit is by drill bit drilling rod, attachment structure, machine shaft and motor connection in the present invention, and drill bit drilling rod is arranged on and applied
Press on support plate, pressure electromagnetism expansion link adjusts the distance of pressure support plate and electromagnetism expansion link support plate by adjusting its length；The
One detent mechanism and the second detent mechanism make motor be at institute's drilled well bore center；Electromagnetism is positioned in detent mechanism to stretch
The flexible of bar can adjust the contact of the radial distance of arc plate, control arc plate and well bore, and then can pass through circular arc
Contact limiting motor housing own rotation of the plate with well bore；On the other hand when the resistance that rock applies to drill bit is excessive, for
To the protection of drill bit by adjust the pressure of arc plate and well bore make arc plate and well bore occur it is relative slide, applied with offsetting motor
Plus moment of torsion, while the intensity of well bore can be improved；Motor and drill bit Integrated design are added only on drill bit in the present invention
Vertical energy supplying system, it is possible to increase general applicability of the drill bit in complex drilling job task.
As shown in Fig. 1,12, above-mentioned pressure electromagnetism expansion link is identical with positioning electromagnetism Telescopic rod structure, for pressure
Electromagnetism expansion link, it includes electromagnetism interior bar base plate, electromagnetism interior bar, electromagnetism outer bar, electromagnetism outer bar top board, u-shaped sliding block, electromagnetism list
In member, unit conducting strip, interior bar conducting strip, interior outer bar conducting strip, outer bar conducting strip, interior bar arcuate guide rail, interior bar arcuate guide rail
Face in face, outer bar arcuate guide rail, outer bar arcuate guide rail, wherein as shown in figure 1, electromagnetism interior bar base plate is arranged on electromagnetism interior bar bottom
End, as shown in fig. 7, having symmetrical interior bar arcuate guide rail in electromagnetism interior bar；As shown in figure 1, electromagnetism outer bar mounting of roof plate
On electromagnetism outer bar top, as shown in fig. 7, having symmetrical outer bar arcuate guide rail in electromagnetism outer bar, electromagnetism outer bar passes through outer
Bar arcuate guide rail inner face is arranged on the outside of electromagnetism interior bar with the cooperation outside interior bar arcuate guide rail；As shown in Fig. 6,8,9, in electromagnetism
It is provided with the outer bar arcuate guide rail being provided with interior bar arcuate guide rail on bar on face in interior bar conducting strip, electromagnetism outer bar on face
Outer bar conducting strip, is provided with interior outer bar conductive on the electromagnetism interior bar top end face of interior bar conducting strip and outer bar conducting strip junction
Piece；Interior outer bar conducting strip one end is fixedly connected interior bar conducting strip, and the other end contacts with outer bar conducting strip and outer bar conducting strip is applied
Plus certain pressure；As shown in Fig. 2,5, electromagnetic unit both sides are symmetrically installed with two u-shaped sliding blocks, two u-shaped sliding block u-shaped concave surfaces
Portion is mounted on unit conducting strip, and u-shaped sliding block coordinates with interior bar arcuate guide rail, outer bar arcuate slide, as shown in Figure 6,7,
Unit conducting strip and interior bar conducting strip, outer bar conducting strip sliding contact；The installation of u-shaped sliding block is passed sequentially through above and below multiple electromagnetic units
In the space that electromagnetism interior bar and electromagnetism outer bar are constituted.
As shown in Figure 2,3, 4, above-mentioned electromagnetic unit includes unit housings, unit top board, unit baseboard, coil, conducting magnetic column,
Wherein conducting magnetic column one end is provided with unit baseboard, and the other end is provided with unit top board, and conductive coil is wrapped on conducting magnetic column, unit
Housing is arranged on unit baseboard, and conducting magnetic column, coil are respectively positioned in unit housings；Two u-shaped sliding blocks are symmetrically mounted on cell enclosure
External side, coil two ends are connected with two unit conducting strips being symmetrically installed respectively.
In the present invention as shown in Fig. 3,10, electromagnetic unit is formed by coil winding conducting magnetic column, after coil electricity, conducting magnetic column
Both sides produce magnetic pole；Multiple electromagnetic units are connected, after energization, each electromagnetic unit produces magnetic pole, when each electromagnetic unit
Between when producing same pole, produce repulsion between electromagnetic unit, spacing is widened；When generation inequality magnetic between each electromagnetic unit
During pole, attracted each other between electromagnetic unit, hypotelorism.Multiple electromagnetic units are put into the space length of a closing in design
In variable space, the present invention between the electromagnetism interior bar and electromagnetism outer bar for passing through non-magnet material using arcuate as shown in fig. 7, led
Rail is nested to form adjustable length space；Conducting strip is mounted on face in arcuate guide rail in electromagnetism interior bar and electromagnetism outer bar, and
And connected between interior bar conducting strip and outer bar conducting strip by interior outer bar conducting strip in energization, foreign current connection electromagnetism interior bar
Interior bar conducting strip, when outer bar is slided, is conducted the current on outer bar conducting strip by interior outer bar conducting strip, interior bar conducting strip and
Outer bar conducting strip is contacted by the unit conducting strip with electromagnetic unit and foreign current is imported into electromagnetic unit, each electromagnetism list
Coil and conducting strip, power supply composition closed-loop path in member.The present invention realizes the flexible of bar by galvanomagnetic-effect, energy-conserving and environment-protective,
And substantially without easily worn part.
As shown in Figure 10,11, limit sliding chutes are also symmetrically provided with above-mentioned electromagnetism outer bar, and it is each in each limit sliding chutes
One position-limiting cover is installed, electromagnetism interior bar top is symmetrically installed with two limited blocks, and two limited blocks are respectively in two spacing cunnings
Slided in groove.Limited by the cooperation of the stopper slot on the limited block in electromagnetism interior bar and electromagnetism outer bar between interior bar and outer bar
Stroke.
Above-mentioned conducting magnetic column, unit top board and unit baseboard are permeability magnetic material.
Above-mentioned electromagnetism interior bar and electromagnetism outer bar are non-magnet material.
As shown in Figure 13,14,21, above-mentioned drill bit includes drill bit drilling rod, outer layer second is supported, outer layer first is supported, drilling
Head, outer layer kerve, outer layer jumping through rings, middle level jumping through rings, middle level kerve, internal layer bore disk, internal gear, planetary gear, planetary gear shaft, in
Layer the 3rd is supported, middle level second is supported, middle level first is supported, the spring bearing of outer layer first, the spring bearing of middle level the 3rd, wherein such as
Figure 19, shown in 20, internal layer bores disk upper end and is arranged on drill bit drilling rod lower end, and internal layer to bore and be provided with multiple drilling heads on the downside of disk；As schemed
17th, shown in 18, middle level jumping through rings is arranged in the support of middle level first, and the support of middle level first is arranged in the support of middle level second, middle level
Second support is arranged in the support of middle level the 3rd, and three planetary gears are circumferentially uniformly mounted to by respective planetary gear shaft
Middle level the 3rd supports upper end, and the support of middle level the 3rd is arranged on drill bit drilling rod by the spring bearing of middle level the 3rd；On drill bit drilling rod
There is flute profile in planetary gear installed position, drill bit drilling rod is engaged by flute profile with three planetary gears, on the downside of the jumping through rings of middle level
Multiple drilling heads are installed；As shown in Figure 15,16, outer layer jumping through rings is arranged in the support of outer layer first, and the support of outer layer first is installed
In the support of outer layer second, the support of outer layer second inner side is provided with internal gear, internal gear and three planetary gear external toothings, outer layer
First support is arranged in the support of middle level the 3rd by the spring bearing of outer layer first, and multiple drillings are provided with the downside of outer layer jumping through rings
Head.
In the present invention as shown in figure 21, drill bit drilling rod bores disk with internal layer and is connected, and drives internal layer to bore disk and rotates；Middle level jumping through rings and
Three middle levels support the revolving part referred to as media layer damage that forms a whole, and it is bored by the spring bearing of middle level the 3rd installed in drill bit
, can be around the rotation of drill bit drilling rod on bar；Outer layer jumping through rings and two outer layers support the revolving part that forms a whole to be referred to as outer layer knot
Structure, is arranged in the support of middle level the 3rd by the spring bearing of outer layer first, can support rotation around middle level the 3rd.Drill bit drilling rod
As sun gear, be provided with planetary middle level as planet carrier, be provided with internal gear outer layer collectively constitute planetary gear pass
It is dynamic；Three-decker constitutes three fast drill bits, and internal layer brill disk drilling speed is identical with drill bit drilling rod, and drilling rod rotation endothecium structure is inevitable with identical
Rotating speed rotates, and middle level and outer layer jumping through rings rotating speed automatically adjust rotating speed according to the rock resistance being each subject to, and can play protection and bore
The purpose of head；When layer structure by rock resistance much larger than the resistance that media layer damage is subject to when, media layer damage rotation, outer layer
Mechanism blockage, on the contrary media layer damage is stuck, layer structure rotation；When middle level is similar with the resistance that layer structure is subject to, then two
Rotating fields can be rotated with opposite direction of rotation；The rotation relationship of China and foreign countries' double-layer structure is easy to be formed the friendship in the short time
For rotation, it thus can more allow rock to loosen in being alternately rotated broken, add drill bit and use scope.The drill bit of the present invention
Need to combine rock adsorption plant such as flushing type sucking pump to use, it is therefore an objective to which the rock after will be broken is discharged from underground.
As shown in Figure 13,21, sealing ring is also equipped with above-mentioned drill bit drilling rod, sealing ring is located on the upside of planetary gear and not
Contacted with planetary gear.The design of sealing ring prevents crushed rocks to enter destruction gear engagement in planetary gear.Sealing ring not with
Planetary gear contacts to prevent that sealing ring from interfering planetary motion.
Above-mentioned planetary gear number can be for 1, in 3,4,5 any one.On the premise of allowing in space, planet tooth
The resistance that its more jumping through rings of number of wheel can be born is bigger.
As shown in figure 14, it is circumferential on the downside of above-mentioned middle level jumping through rings to be uniformly provided with multiple middle level kerves and middle level kerve installation site
Between the installation site of drilling head；It is circumferential on the downside of outer layer jumping through rings to be uniformly provided with multiple outer layer kerves and outer layer kerve installation position
Setting between the installation site of drilling head.Jumping through rings kerve is also equipped with jumping through rings bottom, the rock that it can be to drill bit after broken
Stone plays a part of being oriented to discharge.
As shown in figure 15, also circumferentially be uniformly provided with outer layer side cuts head to above-mentioned outer layer jumping through rings sideways.Installed on the outside of jumping through rings
Head is cut in jumping through rings side, and it is prevented from the abrasion that the borehole wall faces drill bit side wall.
Claims (8)
1. a kind of brill deep-well underground platform of independence energy supply, it is characterised in that：It includes drill bit drilling rod, drill bit, machine shaft, applied
Support plate, pressure electromagnetism expansion link, attachment structure, the second detent mechanism, motor, the first detent mechanism, electromagnetism expansion link support plate are pressed,
Wherein drill bit is arranged on drill bit drilling rod one end, and drill bit drilling rod is arranged on pressure support plate central hole by bearing, and drill bit drilling rod leads to
Attachment structure is crossed to be connected with machine shaft；Three pressure electromagnetism expansion links are circumferential uniform on the upside of pressure support plate, and electromagnetism is stretched
Contracting bar support plate is arranged on three pressure electromagnetism expansion links；Second detent mechanism is arranged on the upside of electromagnetism expansion link support plate, motor
On the second detent mechanism, the first detent mechanism is arranged on the upside of motor；Above-mentioned first detent mechanism and the second localization machine
Structure has identical structure, and its mounting means and position are mutually symmetrical with motor center plane；
Above-mentioned first detent mechanism includes arc plate, positioning electromagnetism expansion link, motor support plate, expansion link overcoat, expansion link overcoat
Top board, wherein motor support plate are arranged on motor one end, and three expansion link overcoats are uniformly arranged on motor support plate, for each
Expansion link overcoat, expansion link jacket internal is provided with positioning electromagnetism expansion link, and positioning electromagnetism expansion link one end is provided with arc plate,
Expansion link overcoat top is provided with expansion link overcoat top board；
Above-mentioned attachment structure includes bar, connection loop bar, adapter sleeve rod guide groove, adapter sleeve in rod guide, connection in fixture block, connection
Bar neck, fixture block ring, fixture block ring guide groove, it is symmetrical on bar in connection wherein bar is arranged on drill bit drilling rod one end in connection
Rod guide in two connections is installed, two fixture blocks are symmetrically installed on bar top and two fixture block planes of symmetry and two in connection
The rod guide plane of symmetry is vertical in connection；Connect loop bar be arranged on inside drill string one end, connection loop bar be provided with two it is symmetrical
Adapter sleeve rod guide groove and two symmetrical connection loop bar necks, the plane of symmetry of two adapter sleeve rod guide grooves and two companies
The plane of symmetry of connecting sleeve lever neck is vertical；Rod guide is slidably matched with adapter sleeve rod guide groove in connection, and fixture block is with being connected loop bar card
Groove is slidably matched, and symmetrical on fixture block ring to be provided with two fixture block ring guide grooves, fixture block ring is arranged on adapter sleeve rod end surface and two cards
Rod guide is slidably matched in block ring guide groove is connected with two；
Above-mentioned pressure electromagnetism expansion link is identical with positioning electromagnetism Telescopic rod structure, and for pressure electromagnetism expansion link, it includes
Electromagnetism interior bar base plate, electromagnetism interior bar, electromagnetism outer bar, electromagnetism outer bar top board, u-shaped sliding block, electromagnetic unit, unit conducting strip, interior bar
It is face in conducting strip, interior outer bar conducting strip, outer bar conducting strip, interior bar arcuate guide rail, interior bar arcuate guide rail, outer bar arcuate guide rail, outer
Face in bar arcuate guide rail, wherein electromagnetism interior bar base plate are arranged on electromagnetism interior bar bottom, have in electromagnetism interior bar symmetrical interior
Bar arcuate guide rail；There is electromagnetism outer bar mounting of roof plate symmetrical outer bar arcuate to lead on electromagnetism outer bar top, electromagnetism outer bar
Rail, electromagnetism outer bar is arranged on the outside of electromagnetism interior bar by the cooperation outside outer bar arcuate guide rail inner face and interior bar arcuate guide rail；Electricity
It is provided with the outer bar arcuate guide rail in interior bar conducting strip, electromagnetism outer bar on face and pacifies on face in interior bar arcuate guide rail in magnetic interior bar
Equipped with outer bar conducting strip, interior outer bar is installed on the electromagnetism interior bar top end face of interior bar conducting strip and outer bar conducting strip junction
Conducting strip；Interior outer bar conducting strip one end is fixedly connected interior bar conducting strip, and the other end is contacted and conductive to outer bar with outer bar conducting strip
Piece applies certain pressure；Electromagnetic unit both sides are symmetrically installed with two u-shaped sliding blocks, and two u-shaped sliding block u-shaped concave internals are respectively mounted
There is unit conducting strip, u-shaped sliding block coordinates with interior bar arcuate guide rail, outer bar arcuate slide, and unit conducting strip is conductive with interior bar
Piece, outer bar conducting strip sliding contact；U-shaped sliding block is passed sequentially through above and below multiple electromagnetic units installed in electromagnetism interior bar and electromagnetism outer bar
In the space of composition；Above-mentioned electromagnetic unit includes unit housings, unit top board, unit baseboard, coil, wherein conducting magnetic column, magnetic conduction
Post one end is provided with unit baseboard, and the other end is provided with unit top board, and conductive coil is wrapped on conducting magnetic column, and unit housings are installed
On unit baseboard, conducting magnetic column, coil are respectively positioned in unit housings；Two u-shaped sliding blocks are symmetrically mounted on the outside of unit housings, line
Circle two ends are connected with two unit conducting strips being symmetrically installed respectively；
Above-mentioned drill bit include drill bit drilling rod, outer layer second is supported, outer layer first is supported, drilling head, outer layer kerve, outer layer jumping through rings,
Middle level jumping through rings, middle level kerve, internal layer bore disk, internal gear, planetary gear, planetary gear shaft, the support of middle level the 3rd, second, middle level
Support, middle level first are supported, the spring bearing of outer layer first, the spring bearing of middle level the 3rd, and wherein internal layer bores disk upper end and is arranged on drill bit
Drilling rod lower end, internal layer to bore and be provided with multiple drilling heads on the downside of disk；Middle level jumping through rings is arranged in the support of middle level first, first, middle level
Support is arranged in the support of middle level second, and the support of middle level second is arranged in the support of middle level the 3rd, and three planetary gears pass through respective
Planetary gear shaft be circumferentially uniformly mounted to middle level the 3rd support upper end, middle level the 3rd support pass through the spring bearing of middle level the 3rd
On drill bit drilling rod；There is flute profile in planetary gear installed position on drill bit drilling rod, drill bit drilling rod passes through flute profile and three
Multiple drilling heads are installed on the downside of individual planetary gear engagement, middle level jumping through rings；Outer layer jumping through rings is arranged in the support of outer layer first, outer layer
First support is arranged in the support of outer layer second, and the support of outer layer second inner side is provided with internal gear, internal gear and three planet teeth
External toothing is taken turns, the support of outer layer first is arranged in the support of middle level the 3rd by the spring bearing of outer layer first, pacified on the downside of outer layer jumping through rings
Equipped with multiple drilling heads.
2. a kind of brill deep-well underground platform of independence energy supply according to claim 1, it is characterised in that：Above-mentioned electromagnetism outer bar
On be also symmetrically provided with limit sliding chutes, and a position-limiting cover is respectively installed in each limit sliding chutes, electromagnetism interior bar top is symmetrical
Two limited blocks are installed, two limited blocks are slided in two limit sliding chutes respectively.
3. a kind of brill deep-well underground platform of independence energy supply according to claim 1, it is characterised in that：Above-mentioned conducting magnetic column,
Unit top board and unit baseboard are permeability magnetic material.
4. a kind of brill deep-well underground platform of independence energy supply according to claim 1, it is characterised in that：Above-mentioned electromagnetism interior bar
It is non-magnet material with electromagnetism outer bar.
5. a kind of brill deep-well underground platform of independence energy supply according to claim 1, it is characterised in that：Above-mentioned drill bit drilling rod
On be also equipped with sealing ring, sealing ring is located on the upside of planetary gear and not contacted with planetary gear.
6. a kind of brill deep-well underground platform of independence energy supply according to claim 1, it is characterised in that：Above-mentioned planetary gear
Number can be for 2, in 3,4,5 any one.
7. a kind of brill deep-well underground platform of independence energy supply according to claim 1, it is characterised in that：Above-mentioned middle level jumping through rings
Downside is circumferentially uniformly provided with multiple middle level kerves and middle level kerve installation site is located between the installation site of drilling head；Outer layer is bored
Multiple outer layer kerves are circumferentially uniformly provided with the downside of ring and outer layer kerve installation site is located between the installation site of drilling head.
8. a kind of brill deep-well underground platform of independence energy supply according to claim 1, it is characterised in that：Above-mentioned outer layer jumping through rings
Also circumferentially being uniformly provided with outer layer side cuts head for side.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610179295.2A CN105863501A (en) | 2016-04-18 | 2016-04-18 | Independent energy supply deep well drilling underground platform |
| CN2016101792952 | 2016-04-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106939762A true CN106939762A (en) | 2017-07-11 |
| CN106939762B CN106939762B (en) | 2019-02-22 |
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ID=56625986
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610179295.2A Pending CN105863501A (en) | 2016-04-18 | 2016-04-18 | Independent energy supply deep well drilling underground platform |
| CN201710184508.5A Active CN106939762B (en) | 2016-04-18 | 2017-03-24 | A kind of brill deep-well underground platform of independence energy supply |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610179295.2A Pending CN105863501A (en) | 2016-04-18 | 2016-04-18 | Independent energy supply deep well drilling underground platform |
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| Country | Link |
|---|---|
| CN (2) | CN105863501A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699224A (en) * | 1986-05-12 | 1987-10-13 | Sidewinder Joint Venture | Method and apparatus for lateral drilling in oil and gas wells |
| CN201943585U (en) * | 2010-12-01 | 2011-08-24 | 刘展 | Sapphire helical composite jet-nozzle jet-cutting deep well drilling bit |
| CN202900044U (en) * | 2012-11-16 | 2013-04-24 | 中国石油天然气股份有限公司 | Double stabilizer prebuckling dynamics pendulum drilling assembly |
| CN103132925A (en) * | 2013-03-21 | 2013-06-05 | 西南石油大学 | Downhole motive driller capable of improving drill column stretching capacity |
| KR20130104302A (en) * | 2012-03-13 | 2013-09-25 | 이문수 | Direct boring bit |
| CN104120974A (en) * | 2014-07-22 | 2014-10-29 | 中国地质大学（武汉） | Swing type rotary steering well drilling rig |
-
2016
- 2016-04-18 CN CN201610179295.2A patent/CN105863501A/en active Pending
-
2017
- 2017-03-24 CN CN201710184508.5A patent/CN106939762B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699224A (en) * | 1986-05-12 | 1987-10-13 | Sidewinder Joint Venture | Method and apparatus for lateral drilling in oil and gas wells |
| CN201943585U (en) * | 2010-12-01 | 2011-08-24 | 刘展 | Sapphire helical composite jet-nozzle jet-cutting deep well drilling bit |
| KR20130104302A (en) * | 2012-03-13 | 2013-09-25 | 이문수 | Direct boring bit |
| CN202900044U (en) * | 2012-11-16 | 2013-04-24 | 中国石油天然气股份有限公司 | Double stabilizer prebuckling dynamics pendulum drilling assembly |
| CN103132925A (en) * | 2013-03-21 | 2013-06-05 | 西南石油大学 | Downhole motive driller capable of improving drill column stretching capacity |
| CN104120974A (en) * | 2014-07-22 | 2014-10-29 | 中国地质大学（武汉） | Swing type rotary steering well drilling rig |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106939762B (en) | 2019-02-22 |
| CN105863501A (en) | 2016-08-17 |
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