CN109469445A - Two-way resonance drilling speed tool - Google Patents
Two-way resonance drilling speed tool Download PDFInfo
- Publication number
- CN109469445A CN109469445A CN201910043369.3A CN201910043369A CN109469445A CN 109469445 A CN109469445 A CN 109469445A CN 201910043369 A CN201910043369 A CN 201910043369A CN 109469445 A CN109469445 A CN 109469445A
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- China
- Prior art keywords
- setting
- fan
- drill headstock
- drive shaft
- convex
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- 238000005553 drilling Methods 0.000 title claims abstract description 80
- 239000012530 fluid Substances 0.000 claims abstract description 52
- 230000000149 penetrating Effects 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims 2
- 230000035515 penetration Effects 0.000 abstract description 7
- 239000011435 rock Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
Abstract
The present invention is a kind of two-way resonance drilling speed tool, including tool housing, setting axial restraint and the drive shaft that can be rotated in a circumferential direction in tool housing, the lower section setting of drive shaft can circuit oscillation and can drill headstock in axial sliding, the first outer fan-shaped convex, penetrating slot in the first side that each first outer fan-shaped convex upper setting radially penetrates through is arranged in the lower sidewall of drive shaft；It is fan-shaped convex in setting first on the inner wall of drill headstock, the penetrating slot of second side that fan-shaped convex upper setting radially penetrates through in first, setting second is outer fan-shaped convex on the outer wall of drill headstock, in two neighboring first it is fan-shaped it is convex between constitute and can allow drilling fluid intermittent drive drill headstock axial cavity in axial sliding, two neighboring second it is outer it is fan-shaped it is convex between constitute the torsion cavity that can allow drilling fluid intermittent drive drill headstock circuit oscillation.The tool increases the penetraction depth of PDC drill bit, improves the rate of penetration on soft or hard staggeredly stratum, have the characteristics that long service life, high reliablity by applying two-way resonant payloads to PDC drill bit.
Description
Technical field
The present invention relates to oil development technical field more particularly to a kind of two-way resonance drilling speed tools.
Background technique
With the development of existing drilling technology, it is more and more to bore the case where meeting soft or hard staggeredly stratum, one in this kind of stratum
As crept into using PDC drill bit, but in the stratum, PDC drill bit, which is easy to appear, collapses tooth, so as to shorten service life, drop
Low rate of penetration.
In order to solve problem above, both at home and abroad some scholars have developed relevant percussion drilling tool, as torsion impact device,
Spin drilling tool etc. realizes quick broken rock by the way of providing shock loading to PDC drill bit.From such tool making at the scene
It is preferable to the using effect of hardpan from the point of view of situation, but the using effect in soft or hard staggeredly stratum is unobvious.Point
Reason is analysed, mainly in soft or hard staggeredly stratum, shock loading can be absorbed by soft formation, generate the flexible deformation of rock, insufficient
To generate rupture to rock.For soft or hard staggeredly stratum, resonant payloads are easier to increase PDC drill bit cutting tooth incision rock
Depth, to increase rate of penetration.
And biggish drill string and the borehole wall are easy to appear at nearly drill bit into the process in the Horizontal Well Drilling on soft or hard staggeredly stratum
Between frictional resistance so that the bit pressure being applied at drill bit is smaller.In order to reduce the frictional resistance between drill string and the borehole wall, state
Inside and outside some scholars have developed hydroscillator, by applying the oscillating load of axial reciprocating to drill string, reduce the borehole wall and drill string
Between frictional force.Currently, hydroscillator has obtained large-scale use at the scene, but such tool is generally uneasy
At nearly drill bit, the problem of cannot acting directly at PDC drill bit, the big frictional resistance at nearly drill bit cannot be reduced.
The present inventor based on years of experience and practice in relevant industries, proposes that a kind of two-way resonance drilling well mentions as a result,
Fast tool, to overcome the deficiencies of existing technologies.
Summary of the invention
The purpose of the present invention is to provide a kind of two-way resonance drilling speed tools, overcome nearly brill existing in the prior art
The problems such as frictional resistance is big, rate of penetration is low at head, the tool increase PDC drill bit by applying two-way resonant payloads to PDC drill bit
Penetraction depth, reduce the frictional resistance at nearly drill bit between drill string and the borehole wall, improve it is soft or hard staggeredly stratum power auger
Speed has the characteristics that long service life, high reliablity.
The object of the present invention is achieved like this, a kind of two-way resonance drilling speed tool, the tool including inner hollow
Shell, setting axial restraint and the hollow drive shaft that can be rotated in a circumferential direction in the tool housing are set below the drive shaft
The drill headstock set energy circuit oscillation and can be hollow in axial sliding, the lower sidewall of the drive shaft are circumferentially spaced and radial right
Claim setting first outer fan-shaped convex, each described first outer fan-shaped convex outer wall can be with the inner wall abutting contact of the drill headstock, each institute
State the penetrating slot in the first side that the first outer fan-shaped convex upper setting radially penetrates through；The first drill headstock is arranged in the upper inside wall of the drill headstock
The second drill headstock stage portion is arranged in the outer wall top of stage portion, the drill headstock, from the upward edge of the first drill headstock stage portion
Fan-shaped convex in circumferentially-spaced and radial symmetric setting first, fan-shaped convex upper second side radially penetrated through that is arranged is led in each described first
Through groove, from the second drill headstock stage portion upwards and with described first in fan-shaped convex circumferentially staggered setting second it is outer fan-shaped
Convex, each described second outer fan-shaped convex outer wall can be with the inner wall of the tool housing against fan-shaped in two neighboring described first
The axial cavity in axial sliding of drill headstock described in drilling fluid intermittent drive can be allowed by constituting between convex, and two neighboring described second
The torsion cavity that can allow drill headstock circuit oscillation described in drilling fluid intermittent drive is constituted between outer sector is convex.
In a preferred embodiment of the present invention, the inner wall of the drill headstock is located at the first drill headstock stage portion
Diameter is arranged in the third drill headstock stage portion for reducing setting in lower section, and the upper inside wall of the drill headstock is arranged reversing sleeve, institute
The outer wall top of reversing sleeve and the inner wall of the tool housing are stated against the bottom end of the reversing sleeve is resisted against the third
In drill headstock stage portion, the inner wall of the described first outer fan-shaped convex outer wall and the reversing sleeve is rotated against the reversing cover
Setting can be connected to the penetrating slot in third side of the penetrating slot in first side and the axial cavity, the reversing sleeve on the side wall of cylinder
Side wall on the penetrating slot in third side the 4th penetrating slot in side is alternately set, the penetrating slot in the 4th side can pass through described
The penetrating slot in two sides is connected to the torsion cavity.
In a preferred embodiment of the present invention, the inner wall of the outer wall Yu the tool housing on the drive shaft top it
Between radially interval setting constitute drilling fluid annular fiowpath, in the drive shaft setting axially through the first fluid passage,
The penetrating slot in first side and it is two neighboring first it is outer it is fan-shaped it is convex between gap constitute the second fluid passage, the reversing cover
The bottom setting of cylinder can control the throttling passage into drill headstock inner cavity mud flow rate；First fluid passage is handed over
Wrong ground is connected to the axial cavity or the torsion cavity.
In a preferred embodiment of the present invention, plug is arranged in the bottom of the reversing sleeve, along week on the plug
Plug through hole is set to interval, each plug through hole constitutes the throttling passage.
In a preferred embodiment of the present invention, the tool housing include up and down it is sequentially connected it is hollow on connect
Head, center tap and lower contact, the inner wall lower setting diameter of the center tap is in the second step portion for reducing setting, from described the
The bottom surface of two stage portions sets up spline, on the outer wall of the drill headstock setting can circuit oscillation and capable of sliding axially be set to
Spline in the spline, the lower contact sealing are arranged in the center tap, described in the top surface composition of the spline
The upper limit plane of spline, the top surface of the lower contact constitute the lower limit plane of the spline；The lower sidewall of the drill headstock with
The inner wall sealing of the lower contact slides against.
In a preferred embodiment of the present invention, diameter is set on the inner wall of the tool housing in reducing the of setting
One stage portion, the first step portion constitute the packing portion that can axially insulate the drilling fluid annular fiowpath, the drive shaft
The side wall of the drilling fluid annular fiowpath and first fluid passage can be connected on side wall positioned at the top setting in packing portion
Through-hole, each described first outer fan-shaped projection is in the lower section in the packing portion.
In a preferred embodiment of the present invention, the drilling fluid annular fiowpath is located at the setting of the position above packing portion
The turbine structure of the drive shaft turns can be driven, institute is arranged in the lower section that the turbine structure is located on the side wall of the drive shaft
State lateral through aperture.
In a preferred embodiment of the present invention, the turbine structure includes turn that fixing sleeve is set in the drive shaft
Minor structure, the turbine structure further include the stator structure that is arranged on the inner wall of the tool housing.
In a preferred embodiment of the present invention, the position in the drive shaft close to the packing portion is arranged with axial direction
The outer ring fixing sleeve of the thrust bearing being capable of fixing, the thrust bearing is set on the inner wall of the tool housing, the drive shaft
The position at the upper both ends positioned at the turbine structure is arranged an alignment bearing being axially capable of fixing respectively, the alignment bearing it is outer
Fixing sleeve is enclosed to be set on the inner wall of the tool housing.
In a preferred embodiment of the present invention, the lateral through aperture is in be arranged obliquely from the outside to the core, the side wall
The top of through-hole is arranged higher than the thrust bearing.
From the above mentioned, two-way resonance drilling speed tool provided by the invention has the following beneficial effects:
It is driving medium, drilling fluid interval and friendship with drilling fluid in two-way resonance drilling speed tool provided by the invention
Mistake enters axial cavity or torsion cavity, drives drill headstock axial direction or circumferential movement, to drill bit generate frequency it is identical axial or
Circumferential pulsating load simultaneously acts directly at PDC drill bit, improves the motion state of drill bit, increases the rigidity of drill bit, increases PDC
Cutter cuts the depth of rock interior, reduces the frictional resistance at nearly drill bit between drill string and the borehole wall, increases simultaneously
The cutting moment of torque of PDC drill bit improves the crushing efficiency of soft or hard staggeredly formation rock, improves rate of penetration, improve making for PDC drill bit
With the service life, drilling cost is reduced；In two-way resonance drilling speed tool of the invention, by adjusting the turbo blade of turbine structure
The frequency of quantity and shape adjustment two-way resonance drilling speed tool, it is easy to operate；Two-way resonance drilling speed of the invention
The structure of tool is simple, easy to use without any rubber components, high reliablity.
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 schematic diagram of two-way resonance drilling speed tool of the invention.
Fig. 2: for the structural schematic diagram of drill headstock of the invention.
Fig. 3: cross-sectional view at A-A in Fig. 1 when generating torsion pulsating load for the present invention.
Fig. 4: cross-sectional view at A-A in Fig. 1 when generating axial pulse load for the present invention.
In figure:
100, two-way resonance drilling speed tool；
101, axial cavity；102, cavity is reversed；
1, tool housing；
11, top connection；12, center tap；121, spline；13, lower contact；14, first step portion；15, positioning sleeve；151,
Positioning sleeve stage portion；
2, drive shaft；
21, first is outer fan-shaped convex；211, the penetrating slot in the first side；
22, lateral through aperture；
23, third stage portion；
3, drill headstock；
31, the first drill headstock stage portion；
32, the second drill headstock stage portion；
33, fan-shaped convex in first；331, the penetrating slot of second side；
34, second is outer fan-shaped convex；
35, third drill headstock stage portion；
36, spline；
4, reversing sleeve；
41, the penetrating slot in third side；42, the 4th penetrating slot in side；43, plug；431, plug through hole；
5, turbine structure；
51, rotor structure；52, stator structure；53, thrust bearing；54, alignment bearing；55, location nut.
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.
Shown in Fig. 1 to Fig. 4, the present invention provides a kind of two-way resonance drilling speed tool 100, the tool including inner hollow
Shell 1, the top connection well dynamic tool or drill collar of tool housing 1；Axial restraint is set in tool housing 1 and energy is circumferential
The hollow drive shaft 2 of rotation, the lower section setting energy circuit oscillation of drive shaft 2 and drill headstock 3 that can be hollow in axial sliding, are bored
The bottom of headstock 3 connects drill bit (prior art is not shown in the figure), and the lower sidewall of drive shaft 2 is circumferentially spaced and radial right
Claim setting first outer sector convex 21, the outer wall of each first outer sector convex 21 can with the inner wall abutting contact of drill headstock 3, outside each first
The penetrating slot 211 in the first side radially penetrated through is set in sector convex 21, in the present embodiment, the lower sidewall of drive shaft 2 is radial
It is symmetrical arranged the outer sector convex 21 of a pair first；The first drill headstock stage portion 31 is arranged in the upper inside wall of drill headstock 3, drill headstock 3
The second drill headstock stage portion 32 is arranged in outer wall top, sets from the upward circumferentially spaced and radial symmetric of the first drill headstock stage portion 31
Sector convex 33 in first is set, the penetrating slot 331 of the second side radially penetrated through is set in sector convex 33 in each first, from the second drill headstock
Stage portion 32 upwards and with first in the fan-shaped outer sector convex 34 of convex 33 circumferentially staggered setting second, each second outer sector convex 34
Outer wall can be with the inner wall of tool housing 1 against in the present embodiment, sector convex 33 and the second outer sector convex 34 are in first
Two of radial symmetric setting, and the fan-shaped convex 33 side setting clockwise in first of the second outer sector convex 34.It is two neighboring
Axial cavity 101 in axial sliding of drilling fluid intermittent drive drill headstock 3 can be allowed by constituting between sector convex 33 in first, adjacent
The torsion cavity 102 that can allow 3 circuit oscillation of drilling fluid intermittent drive drill headstock is constituted between two second outer sectors convex 34.
It is driving medium, drilling fluid interval and friendship with drilling fluid in two-way resonance drilling speed tool provided by the invention
Mistake enters axial cavity or torsion cavity, drives drill headstock axial direction or circumferential movement, to drill bit generate frequency it is identical axial or
Circumferential pulsating load simultaneously acts directly at PDC drill bit, improves the motion state of drill bit, increases the rigidity of drill bit, increases PDC
Cutter cuts the depth of rock interior, reduces the frictional resistance at nearly drill bit between drill string and the borehole wall, increases simultaneously
The cutting moment of torque of PDC drill bit improves the crushing efficiency of soft or hard staggeredly formation rock, improves rate of penetration, improve making for PDC drill bit
With the service life, drilling cost is reduced.
Further, as shown in figure 1, figure 3 and figure 4, the lower section that the inner wall of drill headstock 3 is located at the first drill headstock stage portion 31 is set
Diameter is set in the third drill headstock stage portion 35 for reducing setting, the upper inside wall of drill headstock 3 is arranged reversing sleeve 4, reversing sleeve 4
Outer wall top and tool housing 1 inner wall against, the bottom end of reversing sleeve 4 is resisted against in third drill headstock stage portion 35, the
The inner wall rotation of the outer wall and reversing sleeve 4 of one outer sector convex 21 is against setting can be connected to the first side on the side wall of reversing sleeve 4
The penetrating slot 41 in the third side of penetrating slot 211 and axial cavity 101 interlocks with the penetrating slot 41 in third side on the side wall of reversing sleeve 4
The penetrating slot 42 in the 4th side is arranged in ground, and the penetrating slot 42 in the 4th side can be connected to by the penetrating slot 331 of second side with torsion cavity 102.
Further, radially interval setting constitutes drilling fluid between the outer wall on 2 top of drive shaft and the inner wall of tool housing 1
Annular fiowpath, in drive shaft 2 setting axially through the first fluid passage, the penetrating slot 211 in the first side and two neighboring first
Gap between outer sector convex 21 constitutes the second fluid passage, and the bottom setting of reversing sleeve 4 can control into drill headstock 3
The throttling passage of chamber mud flow rate；First fluid passage is alternately connected to axial cavity 101 or torsion cavity 102.
Further, as shown in Figure 1, plug 43, circumferentially spaced setting plug on plug 43 is arranged in the bottom of reversing sleeve 4
Through hole 431, each plug through hole 431 constitute throttling passage.
Further, as shown in Figure 1 and Figure 2, tool housing 1 includes upper and lower sequentially connected hollow top connection 11, center tap
12 and lower contact 13, the inner wall lower setting diameter of center tap 12 is in the second step portion for reducing setting, from second step portion
Bottom surface sets up spline 121, and energy circuit oscillation is arranged on the outer wall of drill headstock 3 and can slide axially in spline
Spline 36, the sealing of lower contact 13 are arranged in center tap 12, and the top surface of spline 121 constitutes the upper limit plane of spline, lower contact
13 top surface constitutes the lower limit plane of spline；The lower sidewall of drill headstock 3 and the inner wall sealing of lower contact 13 slide against.
Further, as shown in Figure 1, the first step portion 14 that diameter is arranged in reduction is arranged on the inner wall of tool housing 1, the
One stage portion 14 constitutes the packing portion that can axially insulate drilling fluid annular fiowpath, is located at the upper of packing portion on the side wall of drive shaft 2
Side's setting can be connected to the lateral through aperture 22 of drilling fluid annular fiowpath and the first fluid passage, and each first outer sector convex 21 is located at envelope
Every the lower section in portion.
Further, as shown in Figure 1, drilling fluid annular fiowpath, which is located at the setting of the position above packing portion, can drive drive shaft 2
Lateral through aperture 22 above-mentioned is arranged in the turbine structure 5 of rotation, the lower section that turbine structure 5 is located on the side wall of drive shaft 2.Pass through tune
The frequency of the adjustable two-way resonance drilling speed tool 100 of the quantity and shape of whole turbo blade.
Further, as shown in Figure 1, turbine structure 5 includes the rotor structure 51 that fixing sleeve is set in drive shaft 2, turbine knot
Structure 5 further includes the stator structure 52 that is arranged on the inner wall of tool housing 1.
Further, as shown in Figure 1, the position in drive shaft 2 close to packing portion is arranged with the thrust bearing being axially capable of fixing
53, the outer ring fixing sleeve of thrust bearing 53 is set on the inner wall of tool housing 1, positioned at the both ends of turbine structure 5 in drive shaft 2
Position is arranged an alignment bearing 54 being axially capable of fixing respectively, and the outer ring fixing sleeve of alignment bearing 54 is set to the interior of tool housing 1
On wall.
Further, as shown in Figure 1, as shown in Figure 1, the top on the side wall of drive shaft 2 positioned at first step portion 14 is arranged
Diameter is in the third stage portion 23 for increasing setting, and the outer ring bottom axial direction contact of thrust bearing 53 is in the top surface in first step portion 14
On, the inner ring bottom axial direction contact of thrust bearing 53 is on the top surface of third stage portion 23；1 inner sleeve of tool housing sets positioning sleeve
15, on positioning sleeve 15 setting can from the positioning sleeve stage portion 151 of 53 outer ring of top contact thrust bearing, the top surface of positioning sleeve 15 with
The outer ring bottom axial direction contact of the alignment bearing 54 of turbine structure bottom end, the outer ring top of the alignment bearing 54 of turbine structure bottom end
Axial contact is on the bottom face of turbine structure 5；The alignment bearing 54 on turbine structure top is determined by being sheathed in drive shaft 2
Position 55 axial restraint of nut.
As shown in Figure 1, in the present embodiment, to converge into the first drilling fluid from drilling fluid annular fiowpath convenient for drilling fluid
In channel, from the outside to the core in being arranged obliquely, the top of lateral through aperture 22 is arranged lateral through aperture 22 higher than thrust bearing 53.
When carrying out drilling well using two-way resonance drilling speed tool 100 of the invention, by top connection 11 be connected to drill collar (or
Person's well dynamic tool) on, drill bit is connected in drill headstock 3.By drill collar to the work of two-way resonance drilling speed tool 100
Has the drilling fluid of injection high pressure in shell 1, part drilling fluid is passed through by the first fluid passage, the inner cavity of reversing sleeve 4, plug
The inner cavity of through-hole 431 and drill headstock 3 is downwardly towards drill bit；Another part drilling fluid flows into drilling fluid annular fiowpath, drives turbine
Structure 5 rotates and drive shaft 2 is driven to rotate, and converges by the drilling fluid of turbine structure 5 through the lateral through aperture 22 in drive shaft 2
In first fluid passage；
When drilling fluid passes through turbine structure 5, it will push turbine structure 5 and rotate clockwise that (rotation direction can be according to reality
Situation is adjusted, and is not limited to rotate clockwise), and drive shaft 2 is driven to rotate clockwise.2 continuous rotation of drive shaft, so that its
The first of lower end outer fan-shaped convex 21 is continuous to change circumferential position, and the circumferential position of the penetrating slot 211 in the first side changes therewith, thus
Change the cleaner for high-pressure drilling fluid inside drive shaft 2 to flow into respective cavities by corresponding through groove.
As shown in figure 3, when the penetrating slot 211 in the first side passes through the penetrating slot 42 in the 4th side, the penetrating slot 331 of second side and torsion chamber
When body 102 is connected to, the first fluid passage inner part cleaner for high-pressure drilling fluid is flowed into torsion cavity 102, and driving drill headstock 3 is clockwise
Rotation, forms a torsion pulsating load；With the rotation of drive shaft 2, the penetrating slot 211 in the first side is staggered with torsion cavity 102,
The effect of the driving torque at center tap 12 is transmitted to by drill collar due to drilling rod, drill headstock 3 is returned to rotate clockwise before
Position.
As shown in figure 4, when the penetrating slot 211 in the first side is connected to by the penetrating slot 41 in third side with axial cavity 101, first
Fluid passage inner part cleaner for high-pressure drilling fluid flows into axial cavity 101, and driving drill headstock 3 moves downward, and forms an axial direction
Pulsating load；With the rotation of drive shaft 2, the penetrating slot 211 in the first side is staggered with axial cavity 101, in the effect of drill bit bit pressure
Under, drill headstock 3 is returned to the position before moving downward upwards.
From the above mentioned, two-way resonance drilling speed tool provided by the invention has the following beneficial effects:
It is driving medium, drilling fluid interval and friendship with drilling fluid in two-way resonance drilling speed tool provided by the invention
Mistake enters axial cavity or torsion cavity, drives drill headstock axial direction or circumferential movement, to drill bit generate frequency it is identical axial or
Circumferential pulsating load simultaneously acts directly at PDC drill bit, improves the motion state of drill bit, increases the rigidity of drill bit, increases PDC
Cutter cuts the depth of rock interior, reduces the frictional resistance at nearly drill bit between drill string and the borehole wall, increases simultaneously
The cutting moment of torque of PDC drill bit improves the crushing efficiency of soft or hard staggeredly formation rock, improves rate of penetration, improve making for PDC drill bit
With the service life, drilling cost is reduced；In two-way resonance drilling speed tool of the invention, by adjusting the turbo blade of turbine structure
The frequency of quantity and shape adjustment two-way resonance drilling speed tool, it is easy to operate；Two-way resonance drilling speed of the invention
The structure of tool is simple, easy to use without any rubber components, high reliablity.
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 two-way resonance drilling speed tool, the tool housing including inner hollow, the interior setting of the tool housing are axial
Hollow drive shaft that is fixed and can rotating in a circumferential direction, which is characterized in that the lower section setting of the drive shaft can circuit oscillation and energy
The lower sidewall of drill headstock hollow in axial sliding, the drive shaft is circumferentially spaced and radial symmetric setting first is outer fan-shaped
It is convex, each described first outer fan-shaped convex outer wall can with the inner wall abutting contact of the drill headstock, each described first it is outer it is fan-shaped it is convex on
The penetrating slot in the first side radially penetrated through is set；The first drill headstock stage portion, the drill bit is arranged in the upper inside wall of the drill headstock
The second drill headstock stage portion is arranged in the outer wall top of seat, circumferentially spaced upwards from the first drill headstock stage portion and radial right
Claim the penetrating slot of second side fan-shaped convex in setting first, fan-shaped convex upper setting radially penetrates through in each described first, from described second
Drill headstock stage portion upwards and with described first in fan-shaped outer fan-shaped convex, each second exterior wing of convex circumferentially staggered setting second
The convex outer wall of shape can with the inner wall of the tool housing against, in two neighboring described first it is fan-shaped it is convex between constitute and can allow to bore
The axial cavity in axial sliding of drill headstock described in well liquid intermittent drive, two neighboring described second it is outer it is fan-shaped it is convex between constitute energy
Allow the torsion cavity of drill headstock circuit oscillation described in drilling fluid intermittent drive.
2. two-way resonance drilling speed tool as described in claim 1, which is characterized in that the inner wall of the drill headstock is located at institute
The lower section setting diameter of the first drill headstock stage portion is stated in the third drill headstock stage portion for reducing setting, the inner wall of the drill headstock
Top is arranged reversing sleeve, and the outer wall top of the reversing sleeve and the inner wall of the tool housing are against the reversing sleeve
Bottom end be resisted against in the third drill headstock stage portion, the inner wall of the described first outer fan-shaped convex outer wall and the reversing sleeve
Rotation is against setting can be connected to the third side of first side penetrating slot and the axial cavity on the side wall of the reversing sleeve
Penetrating slot, is alternately arranged the 4th penetrating slot in side on the side wall of the reversing sleeve with the penetrating slot in third side, and the described 4th
The penetrating slot in side can be connected to by the penetrating slot of described second side with the torsion cavity.
3. two-way resonance drilling speed tool as claimed in claim 2, which is characterized in that the outer wall on the drive shaft top with
Radially interval setting constitutes drilling fluid annular fiowpath between the inner wall of the tool housing, and setting is axial in the drive shaft passes through
The first logical fluid passage, the penetrating slot in first side and it is two neighboring first it is outer it is fan-shaped it is convex between gap constitute second and bore
The bottom setting in well liquid channel, the reversing sleeve can control the throttling passage into drill headstock inner cavity mud flow rate；
First fluid passage is alternately connected to the axial cavity or the torsion cavity.
4. two-way resonance drilling speed tool as claimed in claim 3, which is characterized in that the bottom of the reversing sleeve is arranged
Plug, circumferentially spaced setting plug through hole on the plug, each plug through hole constitute the throttling passage.
5. two-way resonance drilling speed tool as claimed in claim 3, which is characterized in that the tool housing include up and down according to
Hollow top connection, center tap and the lower contact of secondary connection, the inner wall lower setting diameter of the center tap is in reduction setting
Second step portion sets up spline from the bottom surface in the second step portion, and setting can be circumferential on the outer wall of the drill headstock
The spline that swings and can slide axially in the spline, the lower contact sealing is arranged in the center tap, described
The top surface of spline constitutes the upper limit plane of the spline, and the top surface of the lower contact constitutes the lower limit plane of the spline；Institute
The lower sidewall for stating drill headstock and the inner wall sealing of the lower contact slide against.
6. two-way resonance drilling speed tool as claimed in claim 3, which is characterized in that set on the inner wall of the tool housing
Diameter is set in the first step portion for reducing setting, the first step portion, which is constituted, can axially insulate the drilling fluid annular fiowpath
Packing portion, the top setting that packing portion is located on the side wall of the drive shaft can be connected to the drilling fluid annular fiowpath and described the
The lateral through aperture of one fluid passage, each described first outer fan-shaped projection is in the lower section in the packing portion.
7. two-way resonance drilling speed tool as claimed in claim 6, which is characterized in that the drilling fluid annular fiowpath is located at
Position setting above packing portion can drive the turbine structure of the drive shaft turns, be located on the side wall of the drive shaft described
The lateral through aperture is arranged in the lower section of turbine structure.
8. two-way resonance drilling speed tool as claimed in claim 7, which is characterized in that the turbine structure includes fixing sleeve
Rotor structure in the drive shaft, the turbine structure further include the stator knot that is arranged on the inner wall of the tool housing
Structure.
9. two-way resonance drilling speed tool as claimed in claim 8, which is characterized in that close to the envelope in the drive shaft
The thrust bearing being axially capable of fixing is arranged with every the position in portion, the outer ring fixing sleeve of the thrust bearing is set to the tool housing
Inner wall on, the position at both ends in the drive shaft positioned at the turbine structure is arranged a righting axis being axially capable of fixing respectively
It holds, the outer ring fixing sleeve of the alignment bearing is set on the inner wall of the tool housing.
10. two-way resonance drilling speed tool as claimed in claim 9, which is characterized in that the lateral through aperture is from the outside to the core
In being arranged obliquely, the top of the lateral through aperture is arranged higher than the thrust bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043369.3A CN109469445B (en) | 2019-01-17 | 2019-01-17 | Bidirectional resonance drilling speed-increasing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043369.3A CN109469445B (en) | 2019-01-17 | 2019-01-17 | Bidirectional resonance drilling speed-increasing tool |
Publications (2)
| Publication Number | Publication Date |
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| CN110607988A (en) * | 2019-10-17 | 2019-12-24 | 中国石油集团渤海钻探工程有限公司 | Drilling speed increasing device for deep well hard formation |
| CN111323358A (en) * | 2020-04-14 | 2020-06-23 | 中国石油天然气集团有限公司 | Full-diameter shale core bedding seam drainage holder |
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| CN108625769A (en) * | 2018-03-27 | 2018-10-09 | 北京工业大学 | Torsional pulse drilling speed tool |
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| CN109469445B (en) | 2020-05-22 |
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