CN109025831A - Hybrid power PDC drill bit based on fluidics - Google Patents
Hybrid power PDC drill bit based on fluidics Download PDFInfo
- Publication number
- CN109025831A CN109025831A CN201811056685.6A CN201811056685A CN109025831A CN 109025831 A CN109025831 A CN 109025831A CN 201811056685 A CN201811056685 A CN 201811056685A CN 109025831 A CN109025831 A CN 109025831A
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- Prior art keywords
- cutter head
- drill bit
- jet
- jet stream
- wing
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- 238000005553 drilling Methods 0.000 claims abstract description 70
- 239000011435 rock Substances 0.000 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000007921 spray Substances 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims description 48
- 229910045601 alloy Inorganic materials 0.000 claims description 48
- 239000012530 fluid Substances 0.000 claims description 41
- 210000000515 tooth Anatomy 0.000 claims description 32
- 238000005520 cutting process Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 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
- 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/61—Drill bits characterised by conduits or nozzles for drilling fluids characterised by the nozzle structure
-
- 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
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention is a kind of hybrid power PDC drill bit based on fluidics, including drill body, multiple drilling well nozzle for liquid are arranged in one end of drill body, at least two drill bit wings are arranged in one end of drill body, drill bit wing can be with drill body rotating Vortex machine cut rock stratum, at least two jet stream power-driven cutter heads are arranged in one end of drill body, jet stream power-driven cutter head and drill bit wing are circumferentially uniformly staggered, circumferentially multiple cutter head wings are arranged in uniform intervals on jet stream power-driven cutter head, jet nozzle is respectively set in the side of each cutter head wing, jet stream power-driven cutter head can be had enough to meet the need in the same direction with drill body and can high-pressure jet promotion under reversed rotation, the high-pressure jet that each cutter head wing energy secondary pulse is ground rock stratum and jet nozzle generates can spray broken rock.The drill bit can realize mechanical and waterpower staggered form broken rock under stratum complicated and changeable, improve drill bit to the adaptability on various stratum, improve efficiency of breaking rock, shorten drilling period, reduce drilling cost, improve exploration and development benefit.
Description
Technical field
The present invention relates to drilling technology field more particularly to a kind of hybrid power PDC drill bits based on fluidics.
Background technique
With the increasing of petroleum exploration and development dynamics, the probing workload that various complicated geological stratum are gone into the well shows year by year
The trend of rising.But problems are encountered during to rock stratum drilling well ground complicated and changeable, since rock stratum is with changeable
Complexity, the drill bit in drilling process for certain formations cannot adapt to changeable rock stratum very well, lead to the wave of rock breaking efficiency
Dynamic property, not only increases drilling period, and accelerate the abrasion of drill bit.So as to cause schedule delays, while also increasing and boring
Well cost needs new drilling technology to improve bit speed, shortens drilling period, improves exploration and development benefit.
The present inventor based on years of experience and practice in relevant industries, proposes a kind of based on fluidics as a result,
Hybrid power PDC drill bit, to overcome the deficiencies of existing technologies.
Summary of the invention
The purpose of the present invention is to provide a kind of hybrid power PDC drill bit based on fluidics, overcomes in the prior art
The problems such as drill bit bad adaptability, drilling period are long in existing bad ground, bit speed is limited and drilling cost is high, the drill bit
Mechanical and waterpower staggered form broken rock can be realized under stratum complicated and changeable, improved drill bit to the adaptability on various stratum, improved
Efficiency of breaking rock shortens drilling period, reduces drilling cost, improves exploration and development benefit.
The object of the present invention is achieved like this, a kind of hybrid power PDC drill bit based on fluidics, including drill bit sheet
Body, axially disposed drilling fluid runner hole in the drill body, at least four and the brill is arranged in one end of the drill body
The drilling well nozzle for liquid of well liquid runner hole connection, one end of the drill body are radially symmetrical arranged at least two drill bit wings,
The drill bit wing can be with the drill body rotating Vortex machine cut rock stratum, and one end of the drill body is also radially right
Claim setting at least two jet stream power-driven cutter heads, the jet stream power-driven cutter head is identical with the quantity of the drill bit wing and the jet stream
Power-driven cutter head and the drill bit wing are circumferentially uniformly staggered, and circumferentially uniform intervals are arranged on the jet stream power-driven cutter head
The jet nozzle that can generate high-pressure jet is respectively set in the circumferential side of multiple cutter head wings, each cutter head wing, described to penetrate
Mobilization force cutter head can be had enough to meet the need in the same direction with the drill body and can high-pressure jet promotion under reversed rotation, each cutter head wing
The high-pressure jet that energy secondary pulse grinding rock stratum and the jet nozzle generate can spray broken rock.
In a preferred embodiment of the present invention, multiple side tapers are set on the circumferential side wall of each cutter head wing
Tooth is located at circumferential the same side on the end face of each cutter head wing and chisel teeth group is arranged, and the circumferential side of the chisel teeth group is set
Set end toper tooth.
In a preferred embodiment of the present invention, the chisel teeth group includes the wedge shape of multiple radially spaced settings
Tooth, radially the quantity of the end toper tooth on the symmetrical two cutter head wings and chisel teeth is in identical setting.
In a preferred embodiment of the present invention, axially disposed drilling fluid runner hole in the drill body, each institute
The spray angle for stating jet nozzle can adjust, and each jet nozzle can be connected to the drilling fluid runner hole.
In a preferred embodiment of the present invention, the quantity of the drill bit wing is 2, the jet stream power-driven cutter head
Quantity is 2, axially disposed drilling fluid runner hole in the drill body, and 4 and institute is arranged in one end of the drill body
The drilling well nozzle for liquid for stating the connection of drilling fluid runner hole, sets a drill bit wing and an adjacent jet stream power-driven cutter head constitutes one
A cutting group, one end of the drill body are located at the setting of the position in each cutting group between drill bit wing and jet stream power-driven cutter head
The one drilling well nozzle for liquid, one end of the drill body are located in each cutting group at the chip space of drill bit wing described in setting one
Drilling well nozzle for liquid, circumferentially uniform intervals are arranged each drilling well nozzle for liquid.
In a preferred embodiment of the present invention, axially disposed drilling fluid runner hole in the drill body, each institute
State the axially disposed fluidic channel hole that can be connected to the drilling fluid runner hole, each jet nozzle in jet stream power-driven cutter head
Setting is connected to the fluidic channel hole.
In a preferred embodiment of the present invention, one end of the drill body from end be provided inwardly with it is multiple radially
Symmetrically arranged mounting hole is rotatably equipped with a hollow rotation connection structure, each rotation in each mounting hole respectively
Jet stream power-driven cutter head described in one end energy dismantling connection one of connection structure, the fluidic channel hole of the jet stream power-driven cutter head passes through institute
The inner cavity for stating rotation connection structure is connected to the drilling fluid runner hole.
In a preferred embodiment of the present invention, the rotation connection structure includes that sequence is sheathed in the mounting hole
The first hard alloy transverse bearing, thrust bearings and the second hard alloy transverse bearing, first hard alloy is radial
Rotation is arranged connecting shaft, edge in the connecting shaft in bearing, the thrust bearings and the second hard alloy transverse bearing
The fluid via hole that can be connected to the fluidic channel hole and the drilling fluid runner hole, one end of the fluid via hole are axially set
The jet stream power-driven cutter head is arranged in sealing connection.
In a preferred embodiment of the present invention, the open end of the mounting hole is equipped with diameter in the first of increase setting
Stage portion, in the mounting hole it is axially spaced equipped with diameter in the second step portion and third stage portion for reducing setting；
One end setting diameter of the outer ring of the first hard alloy transverse bearing is in the first projecting ring section for increasing setting, institute
The end face contact of the first projecting ring section is stated in the first step portion and first projecting ring section is fixedly connected on the First
In rank portion, the inner ring of the first hard alloy transverse bearing is sheathed in the connecting shaft；Second hard alloy is radial
One end setting diameter of the outer ring of bearing is in the second projecting ring section for increasing setting, and the end face contact of second projecting ring section is in described
In third stage portion and second projecting ring section is fixedly connected in the third stage portion, the second hard alloy radial axle
The inner ring held is sheathed in the connecting shaft；The outer ring of the thrust bearings is sheathed in the mounting hole and the thrust axis
The outer ring both ends axial direction contact of group is held on the outer ring and the second step portion of the first hard alloy transverse bearing, it is described
The inner ring of thrust bearings is sheathed in the connecting shaft；In the connecting shaft be located at the first hard alloy transverse bearing and
First axis retaining ring, the first hard alloy described in the first axis retaining ring energy axial stop are arranged between the thrust bearings
The inner ring of transverse bearing；It is covered between the thrust bearings and the second hard alloy transverse bearing in the connecting shaft
If the second axial retaining ring, the inner ring of the second hard alloy transverse bearing described in the described second axial retaining ring energy axial stop；It is described
Connecting shaft is arranged shaft end baffle ring far from one end outer wall of the jet stream power-driven cutter head.
In a preferred embodiment of the present invention, the first card slot, the second card slot and third card are set in the connecting shaft
Slot, the first axis retaining ring are arranged in first card slot, and the described second axial retaining ring is arranged in second card slot,
The shaft end baffle ring is arranged in the third card slot.
From the above mentioned, the hybrid power PDC drill bit of the invention based on fluidics has the advantages that
In hybrid power PDC drill bit based on fluidics of the invention, for different characteristics rock stratum carry out staggered cutting,
Grinding and jet impulse, drill bit wing form vortex-like groove mark, jet stream power knife with drill body rotating Vortex machine cut rock stratum
Head is using the reaction force of high-pressure jet as rotary power, and the reversed rotation of cutter head wing is along vertical vortex-like groove mark direction secondary pulse mill
Rock stratum is cut, while the high-pressure jet rotated is crushed to rock stratum generation hydraulic blow and high-efficiency rinsing, realizes machine in bad ground
Tool and waterpower staggered form broken rock greatly improve drill bit to the adaptability on various stratum, improve efficiency of breaking rock and sweep effect, contract
Short drilling period, fundamentally extends drilling life of bit, reduces drilling cost, improves exploration and development benefit.
Detailed description of the invention
The following drawings are only intended to schematically illustrate and explain the present invention, not delimit the scope of the invention.Wherein:
Fig. 1: for the axonometric drawing of the hybrid power PDC drill bit of the invention based on fluidics.
Fig. 2: for the cross-sectional view of the hybrid power PDC drill bit of the invention based on fluidics.
Fig. 3: for enlarged drawing in Fig. 2 I.
Fig. 4: for the bottom substance schematic diagram of the hybrid power PDC drill bit of the invention based on fluidics.
Fig. 5: the bottom after removing a jet stream power-driven cutter head for the hybrid power PDC drill bit of the invention based on fluidics
Portion's structural schematic diagram.
Fig. 6: for jet stream power-driven cutter head schematic diagram of the invention.
In figure:
100, the hybrid power PDC drill bit based on fluidics；
1, drill body；
10, drilling fluid runner hole；11, drilling well nozzle for liquid；
121, first step portion；122, second step portion；123, third stage portion；
2, drill bit wing；
3, jet stream power-driven cutter head；
30, fluidic channel hole；
31, cutter head wing；311, side conical tooth；312, chisel teeth；313, end toper tooth；
32, jet nozzle；
33, connecting shaft；331, fluid via hole；
41, the first hard alloy transverse bearing；411, the first projecting ring section；
42, the second hard alloy transverse bearing；421, the second projecting ring section；
43, thrust bearings；
44, first axis retaining ring；
45, the second axial retaining ring；
46, shaft end baffle ring；
5, rubber pad.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
Bright specific embodiment.
As shown in Figures 1 to 6, the present invention provides a kind of hybrid power PDC drill bit 100 based on fluidics, including bores
Head ontology 1, one end of drill body 1 are radially symmetrical arranged at least two drill bit wings, 2 (the arrangement connection side of drill bit wing 2
Formula is the prior art, is repeated no more), drill bit wing 2 can with 1 rotating Vortex machine cut rock stratum of drill body, drill body 1
One end is also radially symmetrical arranged at least two jet stream power-driven cutter heads 3, and jet stream power-driven cutter head 3 is identical with the quantity of drill bit wing 2
And jet stream power-driven cutter head 3 and drill bit wing 2 are circumferentially uniformly staggered, circumferentially uniform intervals are set on jet stream power-driven cutter head 3
Set multiple cutter head wings 31, the circumferential side of each cutter head wing 31 is respectively set and can generate high-pressure jet (fluid is sprayed by jet stream
Pressure increases when mouth 32, can spray broken rock, referred to as high-pressure jet) jet nozzle 32, jet stream power-driven cutter head can be with
Drill body has enough to meet the need in the same direction and can be reversed (with drill body direction of rotation on the contrary, i.e. drill body is suitable under high-pressure jet promotion
Hour hands rotation, then jet stream power-driven cutter head can rotation counterclockwise) rotation, each jet nozzle 32 is respectively arranged at each 31 edge of cutter head wing
Drill body is rotationally advancing the circumferential side in direction, pushes jet stream power-driven cutter head reversed certainly to meet the high-pressure jet of its generation
Turn.The high-pressure jet that each 31 energy secondary pulse grinding rock stratum of cutter head wing and jet nozzle generate can spray broken rock.
In hybrid power PDC drill bit based on fluidics of the invention, for different characteristics rock stratum carry out staggered cutting,
Grinding and jet impulse, drill bit wing 2 form vortex-like groove mark, jet stream power with 1 rotating Vortex machine cut rock stratum of drill body
Cutter head 3 is using the reaction force of high-pressure jet as rotary power, and the reversed rotation of cutter head wing is along the vertical vortex-like secondary punching in groove mark direction
Grinding rock stratum is hit, while the high-pressure jet rotated is crushed to rock stratum generation hydraulic blow and high-efficiency rinsing, realizes bad ground
Interior mechanical and waterpower staggered form broken rock greatly improves drill bit to the adaptability on various stratum, improves efficiency of breaking rock and sweep effect
Fruit shortens drilling period, fundamentally extends drilling life of bit, reduces drilling cost, improves exploration and development benefit.
Further, as shown in fig. 6, multiple side conical tooths 311 are arranged on the circumferential side wall of each cutter head wing 31, each cutter head knife
It is located at circumferential the same side on the end face of the wing 31 and chisel teeth group is set, end toper tooth 313 is arranged in the circumferential side of chisel teeth group.Each knife
End toper tooth 313 and chisel teeth group on the end face of head wing 31 can bear the power on different directions, while can be to rock
Carry out the impact grinding on different directions；Side conical tooth 311 on the circumferential side wall of each cutter head wing 31, can be to peripheral extent rock
Stone is impacted.
In the present embodiment, chisel teeth group includes the chisel teeth 312 of multiple radially spaced settings, radially symmetrically
The quantity of end toper tooth 313 and chisel teeth 312 on two cutter head wings 31 be in identical setting, guarantee jet stream power-driven cutter head 3 by
Dynamic balance avoids damage to.
Further, as shown in Figure 2 and Figure 3, axially disposed drilling fluid runner hole 10 in drill body 1, jet nozzle 32
Spray angle can adjust, and each jet nozzle 32 can be connected to drilling fluid runner hole 10.In a specific embodiment of the invention, knife
The quantity of head wing 31 and jet nozzle 32 is 4, and 4 jet nozzles 32 are arranged circumferentially along jet stream power-driven cutter head 3, root
According to needing 32 angle of jet nozzle to be adjusted with optimum efficiency, meet 3 rotation demand of jet stream power-driven cutter head and rock stratum punching
Wash demand.Cleaner for high-pressure drilling fluid flows through jet nozzle 32 and carries out high-pressure jet, under the action of 4 jet nozzle 32, jet stream power
The circumferential of cutter head 3 generates the reversed grinding broken rock of torsion at a high speed, while the high-pressure jet liquid rotated both carries out efficiently drill bit bottom
Cleaning, and impact grinding effect is generated to rock.
Further, as shown in Figure 4, Figure 5, in a specific embodiment of the invention, the quantity of drill bit wing 2 is 2, is penetrated
The quantity of mobilization force cutter head 3 is 2, and axially disposed drilling fluid runner hole 10 in drill body 1, one end of drill body 1 is set
The drilling well nozzle for liquid 11 that at least four is connected to drilling fluid runner hole 10 is set, a drill bit wing 2 and an adjacent jet stream are set
Power-driven cutter head 3 constitutes a cutting group, one end of drill body 1 be located in each cutting group drill bit wing and jet stream power-driven cutter head it
Between position be arranged a drilling well nozzle for liquid 11, one end of drill body 1 is located in each cutting group to be set at the chip space of drill bit wing 2
A drilling well nozzle for liquid 11 is set, circumferentially uniform intervals are arranged each drilling well nozzle for liquid 11.
Further, as shown in Figure 2 and Figure 3, axially disposed drilling fluid runner hole 10 in drill body 1, each jet stream power knife
The axially disposed fluidic channel hole 30 that can be connected to drilling fluid runner hole 10 in first 3, each jet nozzle 32 and fluidic channel hole
30 connection settings.
Further, one end of drill body 1 is provided inwardly with multiple radially symmetrically arranged mounting holes from end, each to install
A hollow rotation connection structure is rotatably equipped in hole respectively, one end energy one jet stream of dismantling connection of each rotation connection structure is dynamic
The fluidic channel hole 30 of power cutter head 3, jet stream power-driven cutter head 3 is connected by the inner cavity of rotation connection structure and drilling fluid runner hole 10
It is logical.In the present embodiment, the height of the end toper tooth 313 on the end face of each cutter head wing 31 and chisel teeth group compares drill body
Low 2mm of height of drill bit wing 2 on 1 or so, so that bit pressure is mainly born by the drill bit wing 2 on drill body 1, thus anti-
The only rotation connection structure premature breakdown of jet stream power-driven cutter head 3 and drill body 1.
Further, as shown in Figure 2 and Figure 3, rotation connection structure includes the first hard alloy that sequence is sheathed in mounting hole
Transverse bearing 41 (can referred to as the first TC bearing), thrust bearings 43 and the second hard alloy transverse bearing 42 (can referred to as first
TC bearing), the first hard alloy transverse bearing 41, thrust bearings 43 and the interior rotation of the second hard alloy transverse bearing 42 are arranged
Connecting shaft 33, the axially disposed fluid via hole that can be connected to fluidic channel hole 30 and drilling fluid runner hole 10 in connecting shaft 33
331, one end sealing connection setting jet stream power-driven cutter head 3 of fluid via hole 331.In the present embodiment, the one of fluid via hole 331
Conical screw hole is arranged in end, and the taper connection column that can be sealedly attached in conical screw hole is arranged on jet stream power-driven cutter head 3.
In the present embodiment, as shown in Figure 2 and Figure 3, the open end of mounting hole is equipped with diameter in the First for increasing setting
Rank portion 121, in mounting hole it is axially spaced equipped with diameter in the second step portion 122 and third stage portion 123 for reducing setting；
The first projecting ring section 411 that one end setting diameter of the outer ring of first hard alloy transverse bearing 41 is arranged in increase,
The end face contact of first projecting ring section 411 is in first step portion 121 and the first projecting ring section 411 is fixedly connected on first step portion
On 121, in a specific embodiment of the invention, the first projecting ring section 411 is anchored in first step portion 121 by screw, real
The outer ring of existing first hard alloy transverse bearing 41 is axial and circumferentially fixed；The inner ring of first hard alloy transverse bearing 41 is arranged
In in connecting shaft 33；
The second projecting ring section 421 that one end setting diameter of the outer ring of second hard alloy transverse bearing 42 is arranged in increase,
The end face contact of second projecting ring section 421 is in third stage portion 123 and the second projecting ring section 421 is fixedly connected on third stage portion
On 123, in a specific embodiment of the invention, the second projecting ring section 421 is anchored in third stage portion 123 by screw, real
The outer ring of existing second hard alloy transverse bearing 42 is axial and circumferentially fixed；The inner ring of second hard alloy transverse bearing 42 is arranged
In in connecting shaft 33；
The outer ring of thrust bearings 43 is sheathed in mounting hole and the outer ring both ends axial direction contact of thrust bearings 43 is in the
On the outer ring and second step portion 122 of one hard alloy transverse bearing 41, realize that the outer ring of thrust bearings 43 is fixed, thrust axis
The inner ring for holding group 43 is sheathed in connecting shaft 33；It is located at the first hard alloy transverse bearing 41 and thrust bearings in connecting shaft 33
Be arranged first axis retaining ring 44 between 43, first axis retaining ring 44 can the first hard alloy of axial stop transverse bearing 41 it is interior
Circle；The second axial retaining ring 45 is arranged in connecting shaft 33 between thrust bearings 43 and the second hard alloy transverse bearing 42,
The inner ring of second axial 45 energy the second hard alloy of axial stop transverse bearing 42 of retaining ring；Connecting shaft 33 is far from jet stream power-driven cutter head
3 one end outer wall is arranged shaft end baffle ring 46.In the present embodiment, the first card slot, the second card slot and are set in connecting shaft 33
Three card slots, first axis retaining ring 44 are arranged in the first card slot, and the second axial retaining ring 45 is arranged in the second card slot, shaft end baffle ring
46 are arranged in third card slot.The axial retaining ring 45 of first axis retaining ring 44, second and thrust bearings 43 form connecting shaft 33
Axial limit structure；Shaft end baffle ring 46 can prevent the inner ring of the second hard alloy transverse bearing 42 from falling off.
Further, it is set between the first projecting ring section 411 and first step portion 121 of 41 outer ring of the first hard alloy transverse bearing
Rubber pad 5 is set, prevents bulky grain silt from entering the first hard alloy transverse bearing 41, while a small amount of mud and drilling fluid can be by
First hard alloy transverse bearing, 41 outer ring and the gap of inner ring cooperation enter inside the first hard alloy transverse bearing 41, realize
The effect of lubrication.
When creeping into bad ground using the hybrid power PDC drill bit 100 of the invention based on fluidics, main shaft is set
(prior art, inner hollow, drill bit sealing are connected to main shaft bottom) rotates in the counterclockwise direction, and main shaft drives drill body 1
It rotates counterclockwise, drill bit wing 2 is rotated counterclockwise with drill body 1, and jet stream power-driven cutter head 3 is public counterclockwise with drill body 1
Turn, machine cut rock stratum forms vortex-like groove mark when drill bit wing 2 is rotated counterclockwise with drill body 1；Start the same of main axis
When, drilling fluid is injected to main shaft inner cavity (prior art), drilling fluid flows to drilling fluid runner hole 10, part drilling well from main shaft inner cavity
Liquid flows out drill body 1 through drilling well nozzle for liquid 11, realizes cooling, cleaning action；Another part drilling fluid is through in connecting shaft 33
Fluidic channel hole 30 and jet nozzle 32 on fluid via hole 331, jet stream power-driven cutter head 3 are formed towards anticlockwise high pressure
Jet stream, under high-pressure jet effect, jet stream power-driven cutter head 3 generates clockwise circumferential high speed motive force, jet stream power-driven cutter head 3
Clockwise rotation is carried out while revolution counterclockwise with drill body 1, the cutter head wing of jet stream power-driven cutter head 3 is along vertical vortex-like
Groove mark direction secondary pulse is ground rock stratum, while the high-pressure jet rotated is crushed to rock stratum generation hydraulic blow and high-efficiency rinsing,
Realize mechanical and waterpower staggered form broken rock in bad ground.
From the above mentioned, the hybrid power PDC drill bit of the invention based on fluidics has the advantages that
In hybrid power PDC drill bit based on fluidics of the invention, for different characteristics rock stratum carry out staggered cutting,
Grinding and jet impulse, drill bit wing form vortex-like groove mark, jet stream power knife with drill body rotating Vortex machine cut rock stratum
Head is using the reaction force of high-pressure jet as rotary power, and the reversed rotation of cutter head wing is along vertical vortex-like groove mark direction secondary pulse mill
Rock stratum is cut, while the high-pressure jet rotated is crushed to rock stratum generation hydraulic blow and high-efficiency rinsing, realizes machine in bad ground
Tool and waterpower staggered form broken rock greatly improve drill bit to the adaptability on various stratum, improve efficiency of breaking rock and sweep effect, contract
Short drilling period, fundamentally extends drilling life of bit, reduces drilling cost, improves exploration and development benefit.
The foregoing is merely the schematical specific embodiment of the present invention, the range being not intended to limit the invention.It is any
Those skilled in the art, made equivalent changes and modifications under the premise of not departing from design and the principle of the present invention,
It should belong to the scope of protection of the invention.
Claims (10)
1. a kind of hybrid power PDC drill bit based on fluidics, including drill body, which is characterized in that the drill body
One end be radially symmetrical arranged at least two drill bit wings, the drill bit wing can be mechanical with the drill body rotating Vortex
Rock stratum is cut, one end of the drill body is also radially symmetrical arranged at least two jet stream power-driven cutter heads, the jet stream power
Cutter head is identical with the quantity of the drill bit wing and the jet stream power-driven cutter head and the drill bit wing are circumferentially uniformly staggeredly set
It sets, circumferentially multiple cutter head wings, the circumferential side of each cutter head wing is arranged in uniform intervals on the jet stream power-driven cutter head
The jet nozzle that can generate high-pressure jet is respectively set, the jet stream power-driven cutter head can have enough to meet the need in the same direction with the drill body and energy
What the reversed rotation under high-pressure jet promotion, each cutter head wing energy secondary pulse grinding rock stratum and the jet nozzle generated
High-pressure jet can spray broken rock.
2. the hybrid power PDC drill bit based on fluidics as described in claim 1, which is characterized in that each cutter head knife
Multiple side conical tooths are set on the circumferential side wall of the wing, circumferential the same side is located on the end face of each cutter head wing, chisel teeth is set
End toper tooth is arranged in the circumferential side of group, the chisel teeth group.
3. the hybrid power PDC drill bit based on fluidics as claimed in claim 2, which is characterized in that the chisel teeth group
Chisel teeth including multiple radially spaced settings, radially the end toper tooth and wedge shape on the symmetrical two cutter head wings
The quantity of tooth is in identical setting.
4. the hybrid power PDC drill bit based on fluidics as described in claim 1, which is characterized in that the drill body
Interior axially disposed drilling fluid runner hole, the spray angle of each jet nozzle can adjust, and each jet nozzle can be with institute
State the connection of drilling fluid runner hole.
5. the hybrid power PDC drill bit as described in any one of claims 1 to 3 based on fluidics, which is characterized in that described
The quantity of drill bit wing is 2, and the quantity of the jet stream power-driven cutter head is 2, axially disposed drilling well in the drill body
4 drilling well nozzle for liquid being connected to the drilling fluid runner hole are arranged in one end of liquid runner hole, the drill body, set one
Drill bit wing and an adjacent jet stream power-driven cutter head constitute a cutting group, and one end of the drill body is located at each cutting group
A drilling well nozzle for liquid is arranged in position between middle drill bit wing and jet stream power-driven cutter head, and one end of the drill body is located at
In each cutting group at the chip space of drill bit wing be arranged a drilling well nozzle for liquid, each drilling well nozzle for liquid circumferentially uniformly between
Every setting.
6. the hybrid power PDC drill bit as described in any one of claims 1 to 3 based on fluidics, which is characterized in that described
Axially disposed drilling fluid runner hole in drill body, it is axially disposed in each jet stream power-driven cutter head can be with the drilling fluid
The fluidic channel hole of runner hole connection, each jet nozzle are connected to setting with the fluidic channel hole.
7. the hybrid power PDC drill bit based on fluidics as claimed in claim 6, which is characterized in that the drill body
One end be provided inwardly with multiple radially symmetrically arranged mounting holes from end, be rotatably equipped with one respectively in each mounting hole
Hollow rotation connection structure, one end of each rotation connection structure can jet stream power-driven cutter head described in dismantling connection one, it is described
The fluidic channel hole of jet stream power-driven cutter head is connected to by the inner cavity of the rotation connection structure with the drilling fluid runner hole.
8. the hybrid power PDC drill bit based on fluidics as claimed in claim 7, which is characterized in that the rotation connection
Structure includes the first hard alloy transverse bearing, thrust bearings and the second hard alloy that sequence is sheathed in the mounting hole
Transverse bearing, in the first hard alloy transverse bearing, the thrust bearings and the second hard alloy transverse bearing
It rotates and is arranged connecting shaft, it is axially disposed in the connecting shaft to be connected to the fluidic channel hole and the drilling fluid runner hole
Fluid via hole, the jet stream power-driven cutter head is arranged in one end sealing connection of the fluid via hole.
9. the hybrid power PDC drill bit based on fluidics as claimed in claim 8, which is characterized in that the mounting hole
It is in the first step portion for increasing setting that open end, which is equipped with diameter, and the axially spaced diameter that is equipped with is in reduction setting in the mounting hole
Second step portion and third stage portion；
One end setting diameter of the outer ring of the first hard alloy transverse bearing is in the first projecting ring section for increasing setting, and described the
The end face contact of one projecting ring section is in the first step portion and first projecting ring section is fixedly connected on the first step portion
On, the inner ring of the first hard alloy transverse bearing is sheathed in the connecting shaft；The second hard alloy transverse bearing
Outer ring one end setting diameter in increase setting the second projecting ring section, the end face contact of second projecting ring section is in the third
In stage portion and second projecting ring section is fixedly connected in the third stage portion, the second hard alloy transverse bearing
Inner ring is sheathed in the connecting shaft；The outer ring of the thrust bearings is sheathed in the mounting hole and the thrust bearings
Outer ring both ends axial direction contact on the outer ring and the second step portion of the first hard alloy transverse bearing, the thrust
The inner ring of bearing group is sheathed in the connecting shaft；It is located at the first hard alloy transverse bearing and described in the connecting shaft
First axis retaining ring is arranged between thrust bearings, the first hard alloy described in the first axis retaining ring energy axial stop is radial
The inner ring of bearing；Is arranged in the connecting shaft between the thrust bearings and the second hard alloy transverse bearing
Two axial retaining rings, the inner ring of the second hard alloy transverse bearing described in the described second axial retaining ring energy axial stop；The connection
Axis is arranged shaft end baffle ring far from one end outer wall of the jet stream power-driven cutter head.
10. the hybrid power PDC drill bit based on fluidics as claimed in claim 9, which is characterized in that in the connecting shaft
First card slot, the second card slot and third card slot are set, the first axis retaining ring is arranged in first card slot, and described second
Axial retaining ring is arranged in second card slot, and the shaft end baffle ring is arranged in the third card slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056685.6A CN109025831B (en) | 2018-09-11 | 2018-09-11 | Hybrid PDC drill bit based on jet technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056685.6A CN109025831B (en) | 2018-09-11 | 2018-09-11 | Hybrid PDC drill bit based on jet technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109025831A true CN109025831A (en) | 2018-12-18 |
| CN109025831B CN109025831B (en) | 2020-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811056685.6A Expired - Fee Related CN109025831B (en) | 2018-09-11 | 2018-09-11 | Hybrid PDC drill bit based on jet technology |
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| Country | Link |
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| CN (1) | CN109025831B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110067516A (en) * | 2019-05-22 | 2019-07-30 | 成都迪普金刚石钻头有限责任公司 | A kind of quick washing-, which is scraped, cuts combined type broken rock PDC drill bit |
| CN110344766A (en) * | 2019-07-13 | 2019-10-18 | 邹城兖矿泰德工贸有限公司 | Superpower broken rock impactor |
| CN110374518A (en) * | 2019-07-04 | 2019-10-25 | 立府精密机械有限公司 | One kind refusing mud drum polycrystalline diamond compact bit |
| CN111764831A (en) * | 2020-06-28 | 2020-10-13 | 中煤科工集团西安研究院有限公司 | PDC drill bit for coal mine high-position directional drilling |
| CN112160716A (en) * | 2020-10-27 | 2021-01-01 | 郭敏 | Pressurized jet drilling tool for exploration |
| CN113338808A (en) * | 2021-07-13 | 2021-09-03 | 中国石油大学(北京) | Main power rotary cutting wheel drill bit |
| CN113944431A (en) * | 2021-12-20 | 2022-01-18 | 成都迪普金刚石钻头有限责任公司 | Hydraulic auxiliary rock breaking PDC drill bit and auxiliary rock breaking method |
| CN114109257A (en) * | 2021-11-22 | 2022-03-01 | 湖南师范大学 | Water jet assisted hobbing cutter drilling device |
| CN114737887A (en) * | 2022-03-18 | 2022-07-12 | 西南石油大学 | Drill bit with swing nozzle |
| CN115059398A (en) * | 2022-06-27 | 2022-09-16 | 中煤科工集团西安研究院有限公司 | Jet rock breaking rotary nozzle, pore-forming drilling tool, continuous drilling system and industrial control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110067516A (en) * | 2019-05-22 | 2019-07-30 | 成都迪普金刚石钻头有限责任公司 | A kind of quick washing-, which is scraped, cuts combined type broken rock PDC drill bit |
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| CN110344766A (en) * | 2019-07-13 | 2019-10-18 | 邹城兖矿泰德工贸有限公司 | Superpower broken rock impactor |
| CN110344766B (en) * | 2019-07-13 | 2022-03-11 | 邹城兖矿泰德工贸有限公司 | Super strong rock breaking impactor |
| CN111764831A (en) * | 2020-06-28 | 2020-10-13 | 中煤科工集团西安研究院有限公司 | PDC drill bit for coal mine high-position directional drilling |
| CN112160716A (en) * | 2020-10-27 | 2021-01-01 | 郭敏 | Pressurized jet drilling tool for exploration |
| CN112160716B (en) * | 2020-10-27 | 2023-09-22 | 郭敏 | Pressurized jet drilling tool for exploration |
| CN113338808A (en) * | 2021-07-13 | 2021-09-03 | 中国石油大学(北京) | Main power rotary cutting wheel drill bit |
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| CN114109257A (en) * | 2021-11-22 | 2022-03-01 | 湖南师范大学 | Water jet assisted hobbing cutter drilling device |
| CN113944431A (en) * | 2021-12-20 | 2022-01-18 | 成都迪普金刚石钻头有限责任公司 | Hydraulic auxiliary rock breaking PDC drill bit and auxiliary rock breaking method |
| CN114737887A (en) * | 2022-03-18 | 2022-07-12 | 西南石油大学 | Drill bit with swing nozzle |
| CN115059398B (en) * | 2022-06-27 | 2023-06-13 | 中煤科工集团西安研究院有限公司 | Jet rock breaking rotary spray head, hole drilling tool, continuous drilling system and industrial control method |
| CN115059398A (en) * | 2022-06-27 | 2022-09-16 | 中煤科工集团西安研究院有限公司 | Jet rock breaking rotary nozzle, pore-forming drilling tool, continuous drilling system and industrial control method |
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