CN106223832A - Compound Impact Drilling Tools - Google Patents
Compound Impact Drilling Tools Download PDFInfo
- Publication number
- CN106223832A CN106223832A CN201610816005.0A CN201610816005A CN106223832A CN 106223832 A CN106223832 A CN 106223832A CN 201610816005 A CN201610816005 A CN 201610816005A CN 106223832 A CN106223832 A CN 106223832A
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- China
- Prior art keywords
- fan
- shaped
- hole
- wall
- cylindrical
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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
- E21B1/00—Percussion drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
-
- 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
- E21B10/36—Percussion drill bits
- E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
本发明为一种复合冲击钻井工具，包括中部外壳体，其上端固定连接有上短节，一连接管向上穿过上短节与一上外壳体固定连接；中部外壳体底部挂设有钻头座；连接管内壁固定导流座，导流座内壁套设筒状换向器，导流座外壁套设筒状摆锤；在筒状摆锤外侧滑动套设一筒状冲锤；在中部外壳体下腔内设有一冲击筒；筒状换向器和筒状摆锤均伸入冲击筒内部。本发明的复合冲击钻井工具，其轴向冲击是由质量较大的轴向筒状冲锤高速撞击形成，是一种机械冲击，能有效的将冲击载荷传递到钻头处，冲击载荷足以直接破岩；且该钻具的周向冲击和轴向冲击是由一个筒状换向器进行控制，两种冲击载荷频率相等，破岩效率更高。
The present invention is a composite percussion drilling tool, which comprises a middle outer casing, an upper nipple is fixedly connected to its upper end, a connecting pipe passes upward through the upper nipple and is fixedly connected with an upper outer casing; a drill seat is hung on the bottom of the middle outer casing ; The inner wall of the connecting pipe is fixed with a diversion seat, the inner wall of the diversion seat is sleeved with a cylindrical commutator, and the outer wall of the diversion seat is sleeved with a cylindrical pendulum; a cylindrical hammer is sleeved on the outer side of the cylindrical pendulum; An impact cylinder is arranged in the subbody cavity; both the cylindrical commutator and the cylindrical pendulum extend into the interior of the impact cylinder. In the composite impact drilling tool of the present invention, the axial impact is formed by the high-speed impact of a large axial cylindrical hammer. It is a mechanical impact that can effectively transmit the impact load to the drill bit, and the impact load is sufficient to directly break the drill bit. rock; and the circumferential impact and axial impact of the drilling tool are controlled by a cylindrical commutator, the frequency of the two impact loads is equal, and the rock breaking efficiency is higher.
Description
Technical field
The present invention is about down-hole equipment a kind of in field of oil development, particularly relates to a kind of composite impact drilling tool.
Background technology
In petroleum drilling engineering, the raising of rate of penetration is eternal target.The oil mode of creeping into is to pass through drilling rod at present
Drive drill bit rotates, and is sheared rock by drill bit, impact etc., it is achieved rock broken.Fragmented rock passes through drilling well
Liquid is carried out ground.Whole drilling process is pressed in rock upper end for the static pressure that drill bit is provided by drill string, and is passed by drill string
Being delivered to the torque drive drill bit at drill bit rotate, type of drive includes that rotating disk, top drive and mud motor provides.
Drill bit is a most important part in whole drilling process, is directly connected to brokenly the efficiency of rock.PDC drill bit is current
Using more, the preferable drill bit of effect, it is mainly by the shearing of rock is realized brokenly rock.Affect PDC drill bit and break rock effect
The parameter of rate mainly includes the pressure of the drill and moment of torsion, and the pressure of the drill is the major parameter affecting the PDC drill bit cutting edge wedging rock degree of depth, and eats
Entering the degree of depth and can be understood as the volume of individual pen rock cutting, the pressure of the drill is the biggest, and the degree of depth of cutting edge wedging rock is the biggest, rate of penetration
The highest；Moment of torsion is the parameter affecting stock-removing efficiency, and moment of torsion is the highest, and shearing force is the biggest, and rock cutting is the most smooth and easy, and drill bit rotates fluctuation
The least.
It is generally acknowledged that PDC drill bit is suitable for stratum soft and softer in brill, be not suitable for creeping into of hardpan, boring hard ground
During layer, easily occurring: 1) rotation of drill bit fluctuation is relatively big, and stick slip vibration is the most serious；2) bit penetration is inadequate, power auger
Speed is relatively low.It is above limiting the reason that PDC drill bit uses in hardpan.
And at present when boring chance hardpan, general rifler or the diamond bit of using, both drill bits are firmly
In quality layer, main broken rock mode is impact and the mode of mill pressure, though both drill bits energy crushing hard stratum, broken
Rock efficiency is not the highest.
In order to improve the rate of penetration of hardpan, using PDC drill bit to creep into is a kind of effective method, but needs simultaneously
PDC drill bit to be solved bore meet hardpan time the stick slip vibration that occurs and depth of tooth penetration inadequate the two problem.
The problem low in order to solve hardpan rate of penetration, some scholars propose and devise spin drilling tool, this kind of work
Tool is increase axial impact on the basis of rotary drilling, and is delivered at drill bit, uses the mode of impact to realize rock
Volume breaks rock, and these instruments can be divided into two big classes by operation principle at present: valve type impacter and jet flow type shocker.Such work
Tool has been applied, and has certain speed-increasing effect, but also occurs in that some problems, specifically includes that 1) ballistic work
Relatively big, do not reach on-the-spot application requirement the service life of drill bit；2) the bigger ballistic work use to BHA (BHA)
Life-span proposes challenge；3) it is unfavorable for the carrying out that deflecting works.
In order to suppress the stick slip vibration of PDC drill bit, have developed torsion impact device the most respectively, and answered at the scene
With.The operation principle of this instrument is to provide the torsional pulse of high-frequency reciprocating at PDC drill bit, reduces the fluctuation of moment of torsion at drill bit.
At present, this instrument is applied at the scene, and using effect is preferable, but this instrument simply plays the effect of vibration damping, to firmly
The raising of the rate of penetration of quality layer is limited.
The patent of entitled " composite impact drilling tool (CN 204457422U) " that the present inventor has applied for, it is axial
Impact is the jet being formed pulse by specific structure, and strikes on housing, due to the rheological characteristic of fluid, and its produced punching
Hitting load less, be delivered to the finite energy at drill bit, be not enough to produce the most broken rock, its Main Function is vibrating drag reduction；With
Time this drilling tool axial impact different with the frequency of torsional pulse, two kinds of shock loadings each work, and efficiency of breaking rock is limited.This
The patent of entitled " composite impact drilling tool (CN103953281B) " that a person of good sense has applied for, the composite impact in this patent is
Being implemented by a cam mechanism, the ballistic work needed due to broken rock is relatively big, and cam mechanism easily occurs wearing and tearing the most seriously to enter
And the situation of premature failure occurs, seriously limit the onsite application of this instrument.
Based on posed problems above, the present inventor relies on experience and the practice being engaged in relevant industries for many years, in conjunction with spinning
Drilling tool and the feature of torsion impact device, in order to improve the rate of penetration of hardpan, propose and devise a kind of composite impact to bore
Well tool, to overcome the defect of prior art.
Summary of the invention
It is an object of the invention to provide a kind of composite impact drilling tool, to improve the efficiency of breaking rock of hardpan, fall
The drilling cost of low hardpan.
Another object of the present invention is to provide a kind of composite impact drilling tool, the stick slip vibration of suppression PDC drill bit, carry
The stability of high drilling tool, increases the service life.
The object of the present invention is achieved like this, and a kind of composite impact drilling tool, this composite impact drilling tool includes
The middle housing body of one up/down perforation, the inwall of middle housing body is provided with the first annular boss of inside projection, first annular convex
Middle housing intracoelomic cavity is divided into epicoele and cavity of resorption by platform；This middle housing body upper end is fixedly connected with pipe nipple, a stepped company
The small end of adapter is upward through the centre bore of pipe nipple, and fixing with the upper shell body lower end of a up/down perforation is connected；In the middle part of this
Drill headstock it is linked with bottom shell body；
The inwall of stepped connecting tube fixes the diversion seat connecting a up/down perforation, and diversion seat inner wall sleeve is provided with a tubular and changes
To device, tubular diverter top backstop is in the first flange of diversion seat inwall；Diversion seat outer wall is arranged with a tubular pendulum, tubular
Pendulum top backstop is in the second flange of diversion seat outer wall；Tubular diverter and tubular pendulum are all passed down through middle housing body
First annular boss extends to the cavity of resorption of middle housing body, and first annular boss seals sliding contact with the outer wall of tubular pendulum；
Outside tubular pendulum and be positioned at intracavity on middle housing body, sliding up and down to a sheathed tubular block stamp, tubular rushes
The inwall of hammer is inwardly convexly equipped with the second annular boss, and the second annular boss seals and is slidedly arranged on tubular pendulum outer wall, tubular block stamp
The inner wall sealing sliding contact of outer wall and middle housing body, form first annular chamber above and below the second annular boss respectively
With the second annular chamber；
Under middle housing body, intracavity is provided with an impact cylinder, and the base of impact cylinder is provided with the through hole of up/down perforation；Through hole
Epimere be arranged with the nozzle support seat of a hollow, the hypomere of through hole constitutes the polygonal hole being connected with drill headstock；Tubular commutates
Device and tubular pendulum all stretch into inside impact cylinder, and the bottom of tubular diverter is resisted against on the edge clipping of nozzle support seat outer wall；Cylinder
The bottom of shape pendulum is resisted against the upper surface of impact cylinder base.
In a better embodiment of the present invention, bottom described middle housing body, it is fixed with a hanging pup joint, described
The top of drill headstock is upward through hanging pup joint and connects an anti-fish, and this anti-fish can be hung on the top of hanging pup joint.
In a better embodiment of the present invention, drill headstock outer wall is that spline is connected with hanging pup joint inwall；Anti-fish
It is to be docked, by two symmetrical semicircular ring, the circular ring structure constituted.
In a better embodiment of the present invention, drill headstock external wall of upper portion is provided with edge clipping, and edge clipping is fastened on anti-fish
On annular slot in surface.
In a better embodiment of the present invention, described impact cylinder inwall axially prolongs in being arranged with crosswise
Extending a pair first fan grooves of base upper surface and a pair second fan grooves, the fan angle of described first fan groove is more than the
The fan angle of two fan grooves；Nozzle support seat lower sides is equipped with the open-work of multiple its sidewall through, and described second is fan-shaped
Bottom land end is provided with the connectivity slot that the open-work with nozzle support seat sidewall connects；Between the first fan groove and the second fan groove
Being respectively equipped with a guiding gutter on impact cylinder outer wall, four guiding gutters extend axially downward bottom impact body, in each guiding gutter
It is provided with the pod apertures of through impact cylinder barrel；The guiding gutter that in four guiding gutters, one pair of which is symmetrical is the first guiding gutter,
Another is the second guiding gutter to symmetrical guiding gutter；The top of impact cylinder is fixed with an end cap, and described end cap is provided with
Centre bore, tubular this centre bore of pendulum hermetically passing, the sidewall of described end cap is circumferentially with four and corresponding with described guiding gutter leads
Logical crosses chute；An annular space is formed between on the upside of described end cap and on the downside of first annular boss.
In a better embodiment of the present invention, described tubular pendulum is positioned at the outer tube wall pair of middle housing body cavity of resorption
Claim to be provided with a pair fan-shaped projection of axially arranged first, the barrel of the fan-shaped projection both sides of next-door neighbour first is respectively equipped with the first flow
Hole and the second assignment hole；Be positioned on described tubular pendulum the inner tube wall of middle housing body cavity of resorption be arranged with a pair axially arranged
Second fan-shaped projection, the barrel of the fan-shaped projection both sides of next-door neighbour second is respectively equipped with the 3rd assignment hole and the 4th assignment hole；Described
First fan-shaped projection and the second fan-shaped projection are that decussation is arranged, and the fan angle of the first fan-shaped projection is fan-shaped more than second
The fan angle of projection；Described first fan-shaped projection is swingingly arranged in the first fan groove of impact cylinder；Tubular pendulum is corresponding
On the sidewall of the axially top of each first fan-shaped projection, it is sequentially with one first fan-shaped open-work, one second sector from bottom to top thoroughly
Hole and one the 3rd fan-shaped open-work, fan angle and the first fan-shaped projection of the described first fan-shaped open-work are identical, the second fan-shaped open-work
And the half of respectively less than first fan-shaped projection fan angle identical with the fan angle of the 3rd fan-shaped open-work, the second fan-shaped open-work and
3rd fan-shaped open-work is in the circumferential in the setting that is staggered；First fan-shaped open-work is presented axially in the lower intracavity of middle housing body, the
Connect with described annular space outside one fan-shaped open-work；Second fan-shaped open-work is presented axially in the upper intracavity of middle housing body,
Connect with the second annular chamber outside second fan-shaped open-work；3rd fan-shaped open-work is presented axially in the upper intracavity of middle housing body,
Connect with first annular chamber outside 3rd fan-shaped open-work.
In a better embodiment of the present invention, described tubular diverter is positioned at the outer tube wall of middle housing body cavity of resorption
A pair fan-shaped projection of axially arranged the 3rd and a pair axially arranged four fan-shaped projection it is arranged with in decussation formula,
It is respectively provided on two sides with the first commutation hole and the second commutation hole on each 3rd fan-shaped projection and adjacent to the 3rd fan-shaped projection；The each 4th
The 3rd fan groove of an axially extending setting it is respectively equipped with on the outer wall of fan-shaped projection；On described tubular pendulum second is fan-shaped convex
Post is swingingly arranged in the 3rd fan groove of tubular diverter；The axial top of the corresponding each 3rd fan-shaped projection of tubular diverter
Sidewall on, be sequentially with a four fan-shaped open-work, one the 5th fan-shaped open-work and one the 6th fan-shaped open-work from bottom to top；4th fan
Fan-shaped projection is located along the same line with the 3rd of homonymy for shape open-work, the 5th fan-shaped open-work and the 6th fan-shaped open-work；5th is fan-shaped
The fan angle of open-work, the 6th fan-shaped open-work and the second fan-shaped open-work is identical, and the fan angle of the first fan-shaped open-work is more than the 4th
The fan angle of fan-shaped open-work；On axial location, four fan-shaped open-work, the 5th fan-shaped open-work and the 6th fan-shaped open-work respectively with
First fan-shaped open-work, the second fan-shaped open-work and the 3rd fan-shaped open-work height are corresponding；On the sidewall of tubular diverter and around institute
State four fan-shaped open-work, the 5th fan-shaped open-work and the 6th fan-shaped open-work and be convexly equipped with a fan-shaped flange respectively.
In a better embodiment of the present invention, in described nozzle support seat, it is installed with a nozzle.
In a better embodiment of the present invention, this middle housing body with upper pipe nipple for threadeding；Stepped connection
The small end of pipe with upper shell body lower end for threadeding；The inwall of diversion seat and stepped connecting tube is for threadeding；Outside Zhong Bu
Housing bottom with hanging pup joint for threadeding.
From the above mentioned, the composite impact drilling tool of the present invention, its axial impact is the axial tubular punching bigger by quality
Hammer high-speed impact is formed, and is a kind of mechanical shock, can effectively be delivered at drill bit by shock loading, and shock loading be enough to directly
Broken rock；And two kinds of impacts (circumference impact and axial impact) of this drilling tool are to be controlled by a changement (tubular diverter)
System, two kinds of shock loading frequencies are equal, and efficiency of breaking rock is higher.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating the present invention and explaining, not delimit the scope of the invention.Wherein:
Fig. 1: for the structure cross-sectional schematic of composite impact drilling tool of the present invention；
Fig. 2: for the structural representation of middle housing body in the present invention；
Fig. 3: for the structural representation of shell body upper in the present invention；
Fig. 4: for the structural representation of connecting tube stepped in the present invention；
Fig. 5: for the structural representation of pipe nipple upper in the present invention；
Fig. 6: for the structural representation of diversion seat in the present invention；
Fig. 7 A: for the structural representation one of tubular pendulum in the present invention；
Fig. 7 B: for the structural representation two of tubular pendulum in the present invention；
Fig. 7 C: for the structural representation three of tubular pendulum in the present invention；
Fig. 8 A: for the structural representation one of tubular diverter in the present invention；
Fig. 8 B: for the structural representation two of tubular diverter in the present invention；
Fig. 8 C: for the structural representation three of tubular diverter in the present invention；
Fig. 9 A: for the structural representation one of impact cylinder in the present invention；
Fig. 9 B: for the structural representation two of impact cylinder in the present invention；
Fig. 9 C: for the structural representation three of impact cylinder in the present invention；
Fig. 9 D: for the structural representation four of impact cylinder in the present invention；
Figure 10: for the structural representation of tubular block stamp in the present invention；
Figure 11: for the structural representation of end cap in the present invention；
Figure 12 A: for the structural representation one of nozzle support seat in the present invention；
Figure 12 B: for the structural representation two of nozzle support seat in the present invention；
Figure 13: for the structural representation of nozzle in the present invention；
Figure 14 A: for the structural representation one of fish anti-in the present invention；
Figure 14 B: for the structural representation two of fish anti-in the present invention；
Figure 15: for the structural representation of hanging pup joint in the present invention；
Figure 16 A: for the structural representation one of drill headstock in the present invention；
Figure 16 B: for the structural representation two of drill headstock in the present invention；
Figure 17: for representing the schematic diagram of three slice locations (I, II and III) in composite impact drilling tool of the present invention；
Figure 18 A: for when tubular diverter and tubular pendulum are in the first state in composite impact drilling tool of the present invention, position
Structural representation in I position；
Figure 18 B: for when tubular diverter and tubular pendulum are in the first state in composite impact drilling tool of the present invention, position
Structural representation in II position；
Figure 18 C: for when tubular diverter and tubular pendulum are in the first state in composite impact drilling tool of the present invention, position
Structural representation in III position；
Figure 19 A: for when tubular diverter and tubular pendulum are in the second state in composite impact drilling tool of the present invention, position
Structural representation in I position；
Figure 19 B: for when tubular diverter and tubular pendulum are in the second state in composite impact drilling tool of the present invention, position
Structural representation in II position；
Figure 19 C: for when tubular diverter and tubular pendulum are in the second state in composite impact drilling tool of the present invention, position
Structural representation in III position；
Figure 20 A: for when tubular diverter and tubular pendulum are in the third state in composite impact drilling tool of the present invention, position
Structural representation in I position；
Figure 20 B: for when tubular diverter and tubular pendulum are in the third state in composite impact drilling tool of the present invention, position
Structural representation in II position；
Figure 20 C: for when tubular diverter and tubular pendulum are in the third state in composite impact drilling tool of the present invention, position
Structural representation in III position；
Figure 21 A: for when tubular diverter and tubular pendulum are in four states in composite impact drilling tool of the present invention, position
Structural representation in I position；
Figure 21 B: for when tubular diverter and tubular pendulum are in four states in composite impact drilling tool of the present invention, position
Structural representation in II position；
Figure 21 C: for when tubular diverter and tubular pendulum are in four states in composite impact drilling tool of the present invention, position
Structural representation in III position；
Detailed description of the invention
In order to be more clearly understood from the technical characteristic of the present invention, purpose and effect, now comparison accompanying drawing illustrates this
Bright detailed description of the invention.
As shown in Fig. 1～Fig. 5, the present invention proposes a kind of composite impact drilling tool 100, this composite impact drilling tool
The 100 middle housing bodies 1 including a up/down perforation, the inwall of middle housing body 1 is provided with the first annular boss 13 of inside projection,
Middle housing body 1 inner chamber is divided into epicoele 11 and cavity of resorption 12 (as shown in Figure 1 and Figure 2) by first annular boss 13；This middle housing body
1 upper end inwall is fixedly connected with pipe nipple 21, and the small end of a stepped connecting tube 22 is upward through the centre bore of pipe nipple 21, and
Fix with upper shell body 23 lower end inner wall of a up/down perforation and be connected；For flower between upper pipe nipple 21 top and upper shell body 23 bottom
Key is located by connecting；It is linked with drill headstock 3 bottom this middle housing body 1；
As shown in Fig. 1, Fig. 6, the inwall of stepped connecting tube 22 fixes the diversion seat 24 connecting a up/down perforation, diversion seat
24 inner wall sleeves are provided with a tubular diverter 4, and tubular diverter 4 top backstop is in the first flange 241 of diversion seat 24 inwall；Water conservancy diversion
Seat 24 outer walls are arranged with a tubular pendulum 5, and tubular pendulum 5 top backstop is in the second flange 242 of diversion seat 24 outer wall；Tubular changes
All it is passed down through the first annular boss 13 of middle housing body 1 to device 4 and tubular pendulum 5 and extends to the cavity of resorption of middle housing body
12, first annular boss 13 seals sliding contact with the outer wall of tubular pendulum 5；
As shown in Figure 1, Figure 10 shows, outside tubular pendulum 5 and be positioned at middle housing body epicoele 11, slide up and down to sheathed
One tubular block stamp 6, the inwall of tubular block stamp 6 is inwardly convexly equipped with the second annular boss 63, and the second annular boss 63 seals and is slidedly arranged on
On tubular pendulum 5 outer wall, the outer wall of tubular block stamp 6 and the inner wall sealing sliding contact of middle housing body 1, the second annular boss 63
Above and below form first annular chamber 61 and the second annular chamber 62 respectively；
As it is shown in figure 1, be provided with an impact cylinder 7 in middle housing body cavity of resorption 12；The base 71 of impact cylinder 7 is provided with up and down
Through through hole 711；The epimere of through hole 711 is arranged with the nozzle support seat 8 (as shown in Figure 12 A, Figure 12 B) of a hollow, through hole
The hypomere of 711 is the polygonal hole (such as: regular hexagon hole) being connected with drill headstock 3；Impact cylinder 7 is by base 71 through hole 711
Hypomere polygonal hole is socketed on drill headstock 3 (polygonal hole composition impact cylinder 7 is circumferentially positioned with drill headstock 3)；Tubular commutates
It is internal that device 4 and tubular pendulum 5 all stretch into impact cylinder 7, and the bottom of tubular diverter 4 is resisted against the edge clipping of nozzle support seat 8 outer wall
On 81；The bottom of tubular pendulum 5 is resisted against the upper surface 712 of impact cylinder base；At the upper surface 712 of impact cylinder base and be positioned at
A deep gouge 713 connected with through hole 711 epimere it is correspondingly provided with inside tubular pendulum 5；
In the present embodiment, as shown in Fig. 1, Figure 14 A, Figure 14 B, Figure 15, Figure 16 A, Figure 16 B, described middle housing body 1
Bottom is fixed with a hanging pup joint 32, and the outer wall of hanging pup joint 32 uses with the inwall bottom middle housing body 1 threadeds；
The top of described drill headstock 3 is upward through the centre bore of hanging pup joint 32 and connects an anti-fish 33, and this anti-fish 33 can hang
Top at hanging pup joint 32；The outer wall that drill headstock 3 is located in hanging pup joint 32 centre bore is interior with hanging pup joint centre bore
Spline is used to connect and compose the location of circumferential direction (such as: the outer wall of drill headstock 3 arranges feather key, hanging pup joint center between wall
The inwall in hole arranges the keyway of correspondence；Or it is contrary)；For the ease of the assembly or disassembly of drill headstock 3, anti-fish 33 is by two
The complete circular ring structure that symmetrical semicircular ring docking is constituted；Drill headstock 3 external wall of upper portion is provided with edge clipping 31, and edge clipping 31 is fastened on
On annular slot in anti-fish 33 upper surface；
Further, in the present embodiment, as shown in Fig. 9 A～Fig. 9 D, on described impact cylinder 7 inwall, circumferential direction in
It is arranged with crosswise and axially extends to a pair first fan grooves 72 of base upper surface 712 and a pair second fan grooves
73, the fan angle of described first fan groove 72 is more than the fan angle of the second fan groove 73；Nozzle support seat 8 lower sides ring
Being provided with the open-work 82 of multiple its sidewall through, described second fan groove 73 bottom is provided with and multiple open-works of nozzle support seat sidewall
The connectivity slot 731 of 82 connections, described connectivity slot 731 is arranged diagonally downward by base upper surface 712 and extends to the upper of through hole 711
Section inwall；The plurality of open-work 82 also connects with deep gouge 713；Impact between the first fan groove 72 and the second fan groove 73
Being respectively equipped with a guiding gutter on cylinder 7 outer walls, four guiding gutters extend axially downward bottom impact body, are provided with in each guiding gutter
The pod apertures of through impact cylinder barrel；The guiding gutter that in four guiding gutters, one pair of which is symmetrical is the first guiding gutter 74, separately
A pair symmetrical guiding gutter is the second guiding gutter 75, and the pod apertures in the first guiding gutter 74 is the first pod apertures 741, second
Pod apertures in guiding gutter 75 is the second pod apertures 751；The top of impact cylinder 7 is fixed with an end cap 76 (can be by screw axial
It is fixedly connected on the top of impact cylinder 7), as shown in figure 11, described end cap 76 is provided with centre bore 761, and tubular pendulum 5 seals and wears
Cross this centre bore 761, the sidewall of described end cap 76 be circumferentially with four right with described first guiding gutter 74 and the second guiding gutter 75
Should turn on crosses chute 762；An annular space K is formed between on the upside of described end cap 76 and on the downside of first annular boss 13；
In the present embodiment, as shown in Fig. 7 A～Fig. 7 C, described tubular pendulum 5 is positioned at middle housing body cavity of resorption 12
Outer tube wall is arranged with a pair and axially extends to the fan-shaped projection 51 of first bottom tubular pendulum, the fan-shaped projection 51 liang of next-door neighbour first
The first assignment hole 511 and the second assignment hole 512 it is respectively equipped with on the barrel of side；It is positioned at middle housing body on described tubular pendulum 5
The inner tube wall of cavity of resorption 12 be also arranged with a pair axially extending and close to the fan-shaped projection 52, Jin Lin of second bottom tubular pendulum
It is respectively equipped with the 3rd assignment hole 521 and the 4th assignment hole 522 on the barrel of two fan-shaped projection 52 both sides；Described first fan-shaped projection
51 and second fan-shaped projection 52 be that decussation is arranged in tubular pendulum circumferential direction, and the fan angle of the first fan-shaped projection 51
The fan angle of fan-shaped projection 52 more than second；Described first fan-shaped projection 51 is swingingly arranged on the first sector of impact cylinder 7
In groove 72；On the sidewall of the axially top of the corresponding each first fan-shaped projection 51 of tubular pendulum 5, it is sequentially with one first from bottom to top
The fan-shaped open-work of fan-shaped open-work 53,1 second 54 and one the 3rd fan-shaped open-work 55, the fan angle of the described first fan-shaped open-work 53 with
The fan angle of the first fan-shaped projection 51 is identical, and the second fan-shaped open-work 54 is identical and equal with the fan angle of the 3rd fan-shaped open-work 55
The half of fan-shaped projection 51 fan angle less than first, the second fan-shaped open-work 54 and the 3rd fan-shaped open-work 55 are in tubular pendulum circumference
In the setting that is staggered on direction；First fan-shaped open-work 53 in tubular pendulum is located axially at the cavity of resorption 12 of middle housing body, first
All the time connect with described annular space K outside fan-shaped open-work 53；Second fan-shaped open-work 54 is located axially at middle part at tubular pendulum
In the epicoele 11 of shell body, connect with the second annular chamber 62 all the time outside the second fan-shaped open-work 54；3rd fan-shaped open-work 55 is at cylinder
Shape oscillating weight axle also upwards is located in the epicoele 11 of middle housing body, outside the 3rd fan-shaped open-work 55 all the time with first annular chamber 61 even
Logical；
In the present embodiment, as shown in Fig. 8 A～Fig. 8 C, described tubular diverter 4 is positioned at middle housing body cavity of resorption 12
Outer tube wall be that decussation formula is arranged with the fan-shaped projection 41 of a pair axially arranged the 3 and a pair the axially arranged the 4th
Fan-shaped projection 42, is respectively provided on two sides with through tubular diverter on each 3rd fan-shaped projection 41 and adjacent to the 3rd fan-shaped projection 41
First commutation hole 411 and the second commutation hole 412 of sidewall；The outer wall of each four fan-shaped projection 42 is respectively equipped with one axially prolong
Stretch the 3rd fan groove 421 of setting；The fan-shaped projection 52 of on described tubular pendulum 5 second is swingingly arranged on tubular diverter
In 3rd fan groove 421；On the sidewall of the axially top of the corresponding each 3rd fan-shaped projection 41 of tubular diverter 4, the most suitable
Sequence is provided with the fan-shaped open-work of a four fan-shaped open-work 43, the 5th 44 and one the 6th fan-shaped open-work 45；Four fan-shaped open-work the 43, the 5th
Fan-shaped open-work 44 projection 41 fan-shaped with the 3rd of homonymy the with the 6th fan-shaped open-work 45 is positioned on same straight line (parallel with axis)；The
The five fan-shaped open-works 45 of fan-shaped open-work the 44, the 6th are essentially identical with the fan angle of the second fan-shaped open-work 54, the first fan-shaped open-work 53
Fan angle more than the fan angle of four fan-shaped open-work 43；On axial location, four fan-shaped open-work the 43, the 5th is fan-shaped thoroughly
Hole 44 and the 6th fan-shaped open-work 45 are the most right with the first fan-shaped fan-shaped open-work of open-work 53, second 54 and the 3rd fan-shaped open-work 55 respectively
Should；On the sidewall of tubular diverter 4 and around the fan-shaped open-work of described four fan-shaped open-work the 43, the 5th 44 and the 6th fan-shaped open-work
45 are convexly equipped with a sector flange 46 respectively (it can be appreciated that be fan-shaped four fan-shaped open-work, the 5th fan-shaped open-work and the 6th
The position of open-work is convexly equipped with fan-shaped flange respectively, and above-mentioned four fan-shaped open-work, the 5th fan-shaped open-work and the 6th fan-shaped open-work are through
Corresponding fan-shaped flange), the wall thickness of described fan-shaped flange and the thickness of the 3rd fan-shaped projection 41 and four fan-shaped projection 42 are identical,
Thus, align or the 6th fan-shaped open-work 45 and the 3rd fan-shaped open-work 55 with the second fan-shaped open-work 54 phase when the 5th fan-shaped open-work 44
Timing relatively, it is possible to make to constitute corresponding communicating passage between align two fan-shaped open-works；In the present embodiment,
Owing to the fan angle of the first fan-shaped open-work 53 is more than the fan angle of four fan-shaped open-work 43, it is possible to make tubular diverter 4 He
Tubular pendulum 5 is during opposing oscillatory, and the first fan-shaped open-work 53 is in all the time with four fan-shaped open-work 43 and seals the shape connected
State.
In the present embodiment, described nozzle support seat is the tubular structure of a up/down perforation, and nozzle support seat top is solid
It is provided with a nozzle 9 (as shown in figure 13)；
In the present embodiment, this middle housing body 1 with upper pipe nipple 21 for threadeding；The small end of stepped connecting tube 22
With upper shell body 23 lower end for threadeding；The inwall of diversion seat 24 and stepped connecting tube 22 is for threadeding.
Operationally, on it, shell body 23 upper end connects drill collar, drill headstock 3 to the composite impact drilling tool 100 of the present invention
Lower end connects drill bit；It is internal that drilling fluid is entered this composite impact drilling tool 100 by the upper end open of upper shell body 23, then passes through
Stepped connecting tube 22, diversion seat 24, tubular diverter 4 inner chamber, nozzle 9, nozzle support seat 8 and the through hole 711 of impact cylinder, brill
The centre bore of headstock 3 flows in drill bit, and is flowed out by the nozzle of drill bit；
Further, the composite impact drilling tool 100 of the present invention is by the four fan-shaped open-work 43 of tubular diverter, tubular pendulum
The fan-shaped open-work 53 of the first of hammer 5, annular space K, the chute 762 excessively of end cap, the corresponding guiding gutter of impact cylinder 7 and pod apertures order
Constitute the first via highly pressurised liquid driving tubular diverter 4 and tubular pendulum to carry out swinging and enter runner；By on tubular diverter 4
Hole of commutating accordingly, corresponding assignment hole order on tubular pendulum constitutes and drives tubular diverter 4 and tubular pendulum to swing
The second road highly pressurised liquid enter runner；Runner and the weight of the second road highly pressurised liquid entrance runner is entered by first via highly pressurised liquid
Alternate conduction again, makes tubular diverter 4 and tubular pendulum 5 swing the most clockwise and anticlockwise, and tubular pendulum exists
The circumference vibrations that circulation produces in swinging, are transferred to drill headstock 3 by impact cylinder 7, and then pass to drill bit, thus real to drill bit
Execute circumference impact；
Meanwhile, cleaner for high-pressure drilling fluid is also by the 6th fan-shaped open-work 45 and the 3rd tunnel during the 3rd corresponding connection of fan-shaped open-work 55
Highly pressurised liquid enters runner and enters first annular chamber 61, or, corresponding with the second fan-shaped open-work 54 by the 5th fan-shaped open-work 44
The 4th road highly pressurised liquid during connection enters runner and enters the second annular chamber 62, thus, drives tubular block stamp 6 up and down reciprocatingly to move
Dynamic, the axial vibrations that tubular block stamp 6 produces is transferred to by middle housing body (the first annular boss 13 on middle housing body)
Drill headstock 3, and then pass to drill bit, thus drill bit is implemented axial impact；
The composite impact drilling tool of the present invention, its axial impact is the axial tubular block stamp high-speed impact bigger by quality
Being formed, be a kind of mechanical shock, can effectively be delivered at drill bit by shock loading, shock loading be enough to directly break rock；And should
Two kinds of impacts (circumference impact and axial impact) of drilling tool are to be controlled by a changement (same tubular diverter 4)
System, two kinds of shock loading frequencies are equal, and efficiency of breaking rock is higher.
Below in conjunction with Figure 17, Figure 18 A～Figure 18 C, Figure 19 A～Figure 19 C, Figure 20 A～Figure 20 C and Figure 21 A～Figure 21 C to this
The use process of invention composite impact drilling tool 100 is made and being described accordingly:
Wherein, Figure 17 is to represent the signal of three slice locations (I, II and III) in composite impact drilling tool of the present invention
Figure；I slice location can represent between tubular diverter 4, tubular pendulum 5, impact cylinder 7 and middle housing body 1 in circumferential direction
On position relationship；II slice location can represent that the 5th fan-shaped open-work 44 of tubular diverter is fan-shaped with the second of tubular pendulum
Open-work 54 position relationship in circumferential direction；III slice location can represent the 6th fan-shaped open-work 45 and cylinder of tubular diverter
Fan-shaped open-work 55 position relationship in circumferential direction of the 3rd of shape pendulum；
Owing to the fan angle of the first fan-shaped open-work 53 is more than the fan angle of four fan-shaped open-work 43, it is possible to make tubular change
To device 4 and tubular pendulum 5 during opposing oscillatory, the first fan-shaped open-work 53 is in sealing company all the time with four fan-shaped open-work 43
Logical state；Again owing to connecting with described annular space K all the time outside the first fan-shaped open-work 53, therefore, tubular diverter 4 and cylinder
Shape pendulum 5 is in opposing oscillatory, and four fan-shaped open-work 43 can be kept even with annular space K all the time by the first fan-shaped open-work 53
Logical state.
Composite impact drilling tool 100 of the present invention is in running, and wherein tubular diverter 4 and tubular pendulum 5 have
Four kinds of states；
The first state be tubular diverter 4 and tubular pendulum 5 in impact cylinder 7 all counter-clockwise swings to extreme position
State；As shown in Figure 18 A, when the first state, the first commutation hole 411 in tubular diverter 4 is by the inwall of tubular pendulum 5
Block and be not turned on；The second commutation hole 412 conducting corresponding with the second assignment hole 512 of tubular pendulum 5 in tubular diverter 4, structure
Become high pressure feed pathway；First fan groove 72 of impact cylinder 7 is by the first assignment hole 511 of tubular pendulum 5, impact cylinder base
Deep gouge 713, open-work 82, through hole 711 and the centre bore conducting of drill headstock 3 on nozzle support seat, constitute the lowest pushing back
Liquid passage；Meanwhile, when the first state, as shown in figure 18b, the second of tubular pendulum 5 the fan-shaped open-work 54 and tubular diverter 4
The 5th fan-shaped open-work 44 be not turned on, the second annular chamber 62 is by the second fan-shaped open-work 54, deep gouge 713, nozzle support seat
Open-work 82, through hole 711 and the centre bore conducting of drill headstock 3, constitute low pressure back flow channel；As shown in figure 18 c, tubular pendulum 5
Fan-shaped open-work 45 turns on 3rd fan-shaped open-work 55 with the 6th of tubular diverter 4 the, and then turns on first annular chamber 61, constitutes height
Pressure feed pathway；Therefore, when the first state, cleaner for high-pressure drilling fluid sequentially passes through the 6th fan-shaped open-work of fan-shaped open-work the 45, the 3rd
55 supply highly pressurised liquid in first annular chamber 61, and meanwhile, the liquid in the second annular chamber 62 sequentially passes through the second fan-shaped open-work
54, the centre bore of open-work 82, through hole 711 and the drill headstock 3 on deep gouge 713, nozzle support seat realizes back liquid, thus, orders about cylinder
Shape block stamp 6 moves down, and the axially downwardly vibrations that tubular block stamp 6 produces are transferred to drill bit by middle housing body 1, thus to brill
Head implements axial impact；While tubular block stamp 6 moves down, highly pressurised liquid sequentially passes through second in tubular diverter 4
Commutation hole 412, the second assignment hole 512 of tubular pendulum 5 act on the first fan-shaped projection one sidewall, order about tubular pendulum 5 also
Drive tubular diverter 4 to make clockwise to swing simultaneously.
As shown in Figure 19 A, when tubular pendulum 5 in impact cylinder 7 clockwise oscillation to extreme position tubular diverter 4
It is the second state when tubular pendulum 5 is still in counter-clockwise swing extreme position relatively；
When the second state, between tubular diverter 4 and tubular pendulum 5, position relationship in the circumferential is not changed in,
And position relationship in the circumferential there occurs change between tubular pendulum 5 and impact cylinder 7；Now, on the first guiding gutter 74
One pod apertures 741 constitutes high pressure feed pathway with the 3rd assignment hole 521 conducting on tubular pendulum 5；And on tubular pendulum 5
The conducting corresponding with the second fan groove 73 on impact cylinder 7 of four assignment holes 522, then by the connectivity slot bottom the second fan groove 73
731, the open-work 82 on nozzle support seat, through hole 711 and the centre bore conducting of drill headstock 3, constitute low pressure back flow channel；Thus,
Drive the relative tubular pendulum 5 of tubular diverter 4 to make clockwise by drilling fluid to swing.Now, due to tubular diverter 4 with
Between tubular pendulum 5, position relationship in the circumferential is not changed in, the fan-shaped open-work 54 of the second of tubular pendulum 5 and tubular diverter
The fan-shaped open-work 44 of the 5th of 4 is still not turned on (as shown in Figure 19 B), the fan-shaped open-work 55 of the 3rd of tubular pendulum 5 and tubular diverter 4
The 6th fan-shaped open-work 45 also in conducting state (as shown in fig. 19 c), therefore, tubular block stamp 6 is still in lower position.
As shown in FIG. 20 A, when tubular pendulum 5 in impact cylinder 7 clockwise oscillation to extreme position, simultaneously tubular diverter
4 relative tubular pendulum 5 also clockwise oscillation are to being the third state during extreme position；
When the third state, the second commutation hole 412 in tubular diverter 4 is blocked by the inwall of tubular pendulum 5 and is not led
Logical；The first commutation hole 411 conducting corresponding with the first assignment hole 511 of tubular pendulum 5 in tubular diverter 4, constitutes height and is pressed into
Liquid passage；First fan groove 72 of impact cylinder 7 is by the deep gouge on the second assignment hole 512 of tubular pendulum 5, impact cylinder base
713, the open-work 82 on nozzle support seat, through hole 711 and the centre bore conducting of drill headstock 3, constitute low pressure back flow channel；Meanwhile,
When the third state, as shown in fig. 20b, the second of tubular pendulum 5 the fan-shaped open-work 54 is fan-shaped saturating with the 5th of tubular diverter 4 the
Hole 44 turns on, and then turns on the second annular chamber 62, constitutes high pressure feed pathway；As shown in Figure 20 C, the 3rd of tubular pendulum 5
Fan-shaped open-work 45 is not turned on fan-shaped open-work 55 with the 6th of tubular diverter 4 the, first annular chamber 61 by the 3rd sector open-work 55,
Open-work 82, through hole 711 and the centre bore conducting of drill headstock 3 on deep gouge 713, nozzle support seat, constitutes low pressure back flow channel；Cause
This, when the third state, cleaner for high-pressure drilling fluid sequentially passes through the 5th fan-shaped fan-shaped open-work 54 of open-work 44, second to the second annular chamber
Supply highly pressurised liquid in 62, meanwhile, the liquid in first annular chamber 61 sequentially passes through the 3rd fan-shaped open-work 55, deep gouge 713, nozzle
The centre bore supporting open-work 82, through hole 711 and drill headstock 3 on seat realizes backflow, thus, orders about tubular block stamp 6 and moves up,
Impulsive force passes to stepped connecting tube 22, but owing to being connected (such as Fig. 1, figure for spline between upper pipe nipple 21 with upper shell body 23
3, shown in Fig. 5), and between stepped connecting tube 22 and upper pipe nipple 21, leave suitable buffer gap, therefore, this impulsive force will not
It is passed up to drill collar；While tubular block stamp 6 moves up, highly pressurised liquid sequentially passes through first in tubular diverter 4
Commutation hole 411, the first assignment hole 511 of tubular pendulum 5 act on first fan-shaped another sidewall of projection, order about tubular pendulum 5
And drive tubular diverter 4 to make counterclockwise swing simultaneously.
As illustrated in fig. 21, when tubular pendulum 5 in impact cylinder 7 counter-clockwise swing to extreme position tubular diverter 4
It is the 4th kind of state when tubular pendulum 5 is still in clockwise oscillation extreme position relatively；
When the 4th kind of state, between tubular diverter 4 and tubular pendulum 5 position relationship in the circumferential still with the third
During state identical, and between tubular pendulum 5 with impact cylinder 7, position relationship in the circumferential is identical with during the first state；This
Time, the second pod apertures 751 on the second guiding gutter 75 constitutes high pressure feed liquor with the 4th assignment hole 522 conducting on tubular pendulum 5
Passage；And the conducting corresponding with the second fan groove 73 on impact cylinder of the 3rd assignment hole 521 on tubular pendulum 5, then by second
Connectivity slot 731 bottom fan groove 73, the open-work 82 on nozzle support seat, through hole 711 turn on the centre bore of drill headstock 3, structure
Become low pressure back flow channel；Thus, drive the relative tubular pendulum 5 of tubular diverter 4 to make counterclockwise by drilling fluid to swing.This
Time, owing between tubular diverter 4 and tubular pendulum 5, position relationship in the circumferential is not changed in, the second fan of tubular pendulum 5
Fan-shaped open-work 44 still turns on (as illustrated in fig. 21b) shape open-work 54 with the 5th of tubular diverter 4 the, and the 3rd of tubular pendulum 5 is fan-shaped
Fan-shaped open-work 45 is also in not on-state (as shown in fig. 21 c) with the 6th of tubular diverter 4 for open-work 55, and therefore, tubular rushes
Hammer 6 is still in top position.
Further, when the relative tubular pendulum 5 of tubular diverter 4 makees counterclockwise to be rocked to extreme position, tubular changes
The position (as shown in Figure 18 A) of the first state it is returned to device 4 and tubular pendulum 5；So, composite impact spudder of the present invention
Tool 100 completes the motion in a cycle, and in the motor process in a cycle, tubular pendulum provides twice circumference to drill bit
Shock loading, tubular block stamp provides the most axially downwardly shock loading to drill bit；So, under the driving of high-pressure fluid, cylinder
Drill bit is implemented circumference impact by the continuous reciprocally swinging of shape pendulum, and tubular block stamp the most back and forth moves up and down implements axially punching to drill bit
Hit.
From the above mentioned, composite impact drilling tool of the present invention, in conjunction with axial churn drilling tools and the feature of torsion impact drilling tool,
Propose the solid of a kind of high efficiency composition and break rock mode, on PDC drill bit, i.e. terminate a drilling tool, produce axially simultaneously and
Circumference shock loading, the main body of this broken rock mode is by PDC drill bit rock cutting, and the drilling tool of PDC drill bit upper end
In, the axial impact loading produced by tubular block stamp acts on rock so that rock produces crack and the most directly crushes, this
Sample just can make PDC drill bit be easier to incision rock interior, increases single penetraction depth, thus improves efficiency of breaking rock, meanwhile, logical
Cross the continuous reciprocally swinging of tubular pendulum and produce circumference shock loading, prevent PDC drill bit from producing stick-slip when penetraction depth is deeper existing
As.Thus can form three-dimensional broken rock, can be greatly improved the rate of penetration of drilling well, this broken rock mode can solve hardpan
The problem that rate of penetration is low, thus it is substantially reduced drilling cost.
The composite impact drilling tool of the present invention, can eliminate " stick-slip " effect of drill bit, can produce axial impact loading.
This drilling tool can improve the efficiency of breaking rock of hardpan, reduces the drilling cost of hardpan, improves stablizing of drilling tool
Property, increase the service life.
The composite impact drilling tool of the present invention, its axial impact is the axial tubular block stamp high-speed impact bigger by quality
Being formed, be a kind of mechanical shock, can effectively be delivered at drill bit by shock loading, shock loading be enough to directly break rock；And should
Two kinds of impacts (circumference impact and axial impact) of drilling tool are to be controlled by a changement (tubular diverter), two kinds of punchings
Hitting load frequency equal, efficiency of breaking rock is higher；Two kinds of shock loadings of this instrument are to be come by liquid-driving block stamp and pendulum respectively
Implementing, in implementation process, the abrasion of parts is less.Not having rubber and electronic component in this instrument, temperature resistance is preferable.Answering of design
The technical parameter (mainly including frequency of impact and ballistic work) closing churn drilling tools can be by changing nozzle diameter (leading to of nozzle 9
Discharge orifice footpath) mode be adjusted so that it is adapt to Different Strata creeps into needs.
The foregoing is only the schematic detailed description of the invention of the present invention, be not limited to the scope of the present invention.Any
Those skilled in the art, equivalent variations done on the premise of without departing from the design of the present invention and principle and amendment, all
The scope of protection of the invention should be belonged to.
Claims (9)
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| CN201610816005.0A CN106223832B (en) | 2016-09-09 | 2016-09-09 | composite impact drilling tool |
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| CN201610816005.0A CN106223832B (en) | 2016-09-09 | 2016-09-09 | composite impact drilling tool |
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| CN106837181A (en) * | 2017-03-16 | 2017-06-13 | 天津市高原瑞丰工贸有限公司 | A kind of drilling well knob drill hammer |
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| CN108915583A (en) * | 2018-06-25 | 2018-11-30 | 北京工业大学 | Mechanical composite impact drilling speed tool |
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| CN103953281B (en) * | 2014-05-06 | 2016-01-13 | 北京信息科技大学 | composite impact drilling tool |
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| CN108590510A (en) * | 2018-04-12 | 2018-09-28 | 中国石油大学(北京) | Rotating flow distribution formula composite impact device |
| CN108915583A (en) * | 2018-06-25 | 2018-11-30 | 北京工业大学 | Mechanical composite impact drilling speed tool |
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