CN108412420A - Pulsating composite impact device - Google Patents
Pulsating composite impact device Download PDFInfo
- Publication number
- CN108412420A CN108412420A CN201810474177.3A CN201810474177A CN108412420A CN 108412420 A CN108412420 A CN 108412420A CN 201810474177 A CN201810474177 A CN 201810474177A CN 108412420 A CN108412420 A CN 108412420A
- Authority
- CN
- China
- Prior art keywords
- protrusion
- boss portion
- outer housing
- flow distribution
- pipe nipple
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 57
- 238000005553 drilling Methods 0.000 claims abstract description 71
- 238000009826 distribution Methods 0.000 claims abstract description 63
- 239000012530 fluid Substances 0.000 claims abstract description 55
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 17
- 210000002445 nipple Anatomy 0.000 claims description 46
- 239000007787 solid Substances 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 abstract description 5
- 239000011435 rock Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 238000007789 sealing Methods 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000035515 penetration Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 241001074085 Scophthalmus aquosus Species 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005096 rolling process 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
Abstract
The present invention provides a kind of pulsating composite impact device, including drill headstock, outer housing and top connection, drill headstock includes pedestal, first boss portion and second boss portion, axially extending bore is equipped in second boss portion, the lower end of rotating flow distribution axis is located in axially extending bore, and circumferential gap is formed between first boss portion and outer housing；The surface of rotating flow distribution axis is equipped with first and matches head piece with head piece and second, second boss portion be equipped with first with head piece and second with compatible first via of head piece and the second via, axial gap is equipped between the first via and outer housing.Under the driving of drilling fluid first with head piece and the first via, second with head piece and the second via can periodic unicom, to make drilling fluid periodically flow into circumferential gap and axial gap, with to drill headstock application circumferential direction impact force and axial impact force.Present invention omits reciprocating impacts to hammer structure into shape, which thereby enhances the service life of pulsating composite impact device.
Description
Technical field
The present invention relates to oil exploration technology field more particularly to a kind of pulsating composite impact devices.
Background technology
As oil exploitation gradually develops to deep-well, ultradeep well direction, in Process of Oil Well Drilling, except necessary non-brill
The time spent in well time, pure drilling, occupies 80% or more of entire activity duration, and therefore, the raising of drill bit rate of penetration has
Conducive to the reduction of drilling time.The raising of rate of penetration can not only improve drilling well business efficiency, reduce drilling cost, and
In some special circumstances, brill and timely sealing soon are carried out to special formation, is more advantageous to the generation for avoiding down-hole accident.For
This, deep-well, ultradeep well drillng operation in generally by drill bit be arranged impactor to improve drilling speed.
Impactor in the prior art mainly has axial impact device, reverse impactor and composite impact device.Axial impact device
Axial impact loading can be generated to drill bit, increase the cutting depth of cutting tooth, improve drill bit efficiency of breaking rock；But axial impact device
It can aggravate the stick slip vibration of drill bit.Reverse impactor can generate torsional pulse load to drill bit, reduce the stick slip vibration of drill bit；
But due to lacking the aid of the bit pressure on axial direction, efficiency of breaking rock is low.Composite impact device can apply axial force to drill bit simultaneously
And twisting resistance, overcome the defect of single direction impactor.Composite impact device in the prior art includes mainly drill headstock, shell
Body and top connection, drill headstock is for connecting external drill bit, and drill headstock is rotatedly connected with outer housing, the upper end of outer housing and top connection
It is fixedly connected, top connection is connected with external drilling tool, rotates therewith entire composite impact device under the drive of external drilling tool；Outside
It is equipped with reciprocating impact in shell to hammer into shape, the lower end of reciprocating impact hammer has special-shaped inclined-plane, and phase also is provided in the upper end of drill headstock
The special-shaped inclined-plane answered, reciprocating impact hammer can move up and down along the axial direction of outer housing under the impact of cleaner for high-pressure drilling fluid, lead to
The axial impact force of jump bit is converted to axial impact force and torsional pulse power on drill headstock by the contact for crossing Special-Shaped Surface, to
It realizes and compound action power is applied to drill bit.
But since subsurface environment is more severe, has rock debris frequently in the construction process and enters inside impactor,
So that it is more easy to wear using the composite impact device of the prior art its reciprocating impact hammer, so that composite impact device uses the longevity
It orders relatively low.
Invention content
In order to overcome the drawbacks described above under the prior art, the purpose of the present invention is to provide a kind of pulsating composite impacts
Device, pulsating composite impact device of the invention are omitted reciprocating impact hammer structure, which thereby enhance pulsating composite impact device
Service life.
The present invention provides a kind of pulsating composite impact device, including drill headstock, outer housing and top connection, the outer housing
Upper end is fixedly connected with the top connection, and the lower end of the outer housing is rotatedly connected with the drill headstock；
The top connection is equipped with drilling fluid runner, and drilling fluid can enter the outer housing by the drilling fluid runner
It is interior；It is equipped with rotating flow distribution axis in the outer housing, driving device is equipped between the rotating flow distribution axis and the outer housing, is being bored
The driving device can drive the rotating flow distribution shaft rotation dynamic under the driving of well liquid；
The drill headstock includes pedestal and boss portion, and the pedestal is rotatablely connected with the outer housing, and the boss portion is stretched
Enter the inside of the outer housing, the boss portion includes first boss portion and second boss portion, and the first boss portion is set in
The outside in the second boss portion is equipped with axially extending bore in the second boss portion, and the lower end of the rotating flow distribution axis is located at institute
It states in axially extending bore, the upper end in the first boss portion is equipped with multiple first protrusions, and it is convex to be equipped with multiple second in the outer housing
It rises, and the arc length between adjacent first protrusion is more than the arc length of second protrusion, to make the first protrusion and second
Circumferential gap is formed between protrusion；The surface of the rotating flow distribution axis be equipped with first with head piece and second match head piece, described first
It is located at the described second top for matching head piece with head piece, the second boss portion is equipped with matches head piece and the second flow with described first
Compatible first via of mouth and the second via, are equipped with axial gap between first via and the outer housing.
First matches head piece and the second via can the period with head piece and the first via, second under the driving of the drilling fluid
Property unicom, to make drilling fluid flow into circumferential gap and axial gap, with to the drill headstock apply circumferential impact force and
Axial impact force.
Pulsating composite impact device as described above, optionally, the outer housing includes upper pipe nipple and lower pipe nipple, it is described on
The upper end of pipe nipple is fixedly connected with the top connection, and the lower end of the upper pipe nipple is fixedly connected with the lower pipe nipple, short under described
The lower end of section is connect with the base rotation of the drill headstock.
Pulsating composite impact device as described above, optionally, the lateral wall of the pedestal are equipped with multiple raise up
Third protrusion, multiple third protrusions are uniformly distributed along the circumferential direction of the pedestal；The lower end of the lower pipe nipple is equipped with multiple
For raised with the third protrusion the matched 4th, multiple four protrusions are uniformly divided along the circumferential of the lower pipe nipple
Cloth is connected and fixed between the third protrusion and the 4th protrusion by spline；
It is additionally provided with ball grooves between the first boss portion and the lower pipe nipple, multiple balls are equipped in the ball grooves.
Pulsating composite impact device as described above, optionally, the driving device is arranged in the upper pipe nipple, described
Driving device includes the turbine rotor and turbine stator being oppositely arranged, and the turbine stator supports the madial wall in the upper pipe nipple
On, the turbine rotor is fixedly linked with the rotating flow distribution axis, and liquid is formed between the turbine stator and turbine rotor
Channel.
Pulsating composite impact device as described above, optionally, the upper end of the rotating flow distribution axis is connected with shunting end cap,
The center-hole diameter of the shunting end cap is less than the center-hole diameter of the rotating flow distribution axis；It is additionally provided on the rotating flow distribution axis
Return port, for the return port for being connected to the fluid passage and the rotating flow distribution axis, the return port is located at the driving
The lower section of device.
Pulsating composite impact device as described above, optionally, the upper end of the driving device are equipped with alignment bearing, described
The upper end of alignment bearing is equipped with clamp nut；The lower end of the upper pipe nipple is additionally provided with First terrace, on the First terrace
Equipped with thrust bearing.
Pulsating composite impact device as described above, optionally, the upper end in the second boss portion is supported described short
On the inner wall of section, second step face is formed on the outer surface in the second boss portion, the second step face is equipped with sealing
End cap.
Pulsating composite impact device as described above, optionally, the end cover include end cap ontology and are arranged in institute
The 5th protrusion on end cap ontology is stated, the end cap ontology is arranged in the second boss portion, the lower end of the 5th protrusion
Face is supported on the upper surface of first protrusion, and the 5th protrusion limits circumferential space jointly with first protrusion,
And the arc length of adjacent the 5th protrusion is equal with the arc length of the second protrusion；Second protrusion is located at described circumferential empty
In, and the upper end of second protrusion is fastened between adjacent the 5th protrusion.
Pulsating composite impact device as described above is optionally additionally provided with fixed ring above the end cap ontology, described
Fixed ring is threadedly coupled with the second boss portion, to limit the axial movement of the end cover, the fixed ring with it is described
The lower end of upper pipe nipple limits the axial gap jointly.
Pulsating composite impact device as described above is optionally additionally provided with throttle seat, the throttle seat in the drill headstock
Including throttle seat ontology and the throttle seat lug boss being arranged on the throttle seat ontology, the diameter of the throttle seat lug boss is small
In the internal diameter of the rotating flow distribution axis, so that the throttle seat lug boss stretches into the rotating flow distribution axis, the throttle seat sheet
Body is equipped with multiple vertical discharge orifices, and multiple discharge orifices are uniformly arranged in the circumferential direction.
Pulsating composite impact device provided by the invention, including drill headstock, outer housing and top connection, the upper end of outer housing with
Top connection is fixedly connected, and lower end and the drill headstock of outer housing are rotatedly connected；Top connection is equipped with drilling fluid runner, and drilling fluid can lead to
Drilling fluid runner is crossed to enter in outer housing；It is equipped with rotating flow distribution axis in outer housing, is equipped with and drives between rotating flow distribution axis and outer housing
Dynamic device, driving device can drive rotating flow distribution shaft rotation dynamic under the driving of drilling fluid；Drill headstock includes pedestal and boss portion, bottom
Seat is rotatablely connected with outer housing, and boss portion stretches into the inside of outer housing, and boss portion includes first boss portion and second boss portion, the
One boss portion is set in the outside in second boss portion, is equipped with axially extending bore in second boss portion, the lower end of rotating flow distribution axis is located at
In axially extending bore, the upper end in first boss portion is equipped with multiple first protrusions, multiple second protrusions is equipped in outer housing, and adjacent
Arc length between first protrusion is more than the arc length of the second protrusion, to make to be formed between circumferential direction between the first protrusion and the second protrusion
Gap；The surface of rotating flow distribution axis is equipped with first and matches head piece with head piece and second, and first is located at the second top for matching head piece with head piece,
Second boss portion be equipped with first with head piece and second with compatible first via of head piece and the second via, the first via with
Axial gap is equipped between outer housing.First matches head piece and the first via, second with head piece and second under the driving of drilling fluid
Via can periodic unicom, to make drilling fluid periodically flow into circumferential gap and axial gap, with to drill headstock
Apply circumferential impact force and axial impact force.The pulsating composite impact device of the present invention ensure that drill bit application composite impact
Reciprocating impact hammer structure is omitted under the premise of power, which thereby enhances the service life of pulsating composite impact device.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram for the pulsating composite impact device that one embodiment of the invention provides；
Fig. 2 is the structure diagram for the drill headstock that one embodiment of the invention provides；
Fig. 3 is the structure diagram for the rotating flow distribution axis that one embodiment of the invention provides；
Fig. 4 is the structure diagram for the lower pipe nipple that one embodiment of the invention provides；
Fig. 5 is the structure diagram for the end cover that one embodiment of the invention provides；
Fig. 6 A be under first state in Fig. 1 A-A to sectional view；
Fig. 6 B are the sectional view of B-B direction in Fig. 1 under first state；
Fig. 7 A be under the second state in Fig. 1 A-A to sectional view；
Fig. 7 B are the sectional view of B-B direction in Fig. 1 under the second state.
Reference numeral：
100- drill headstocks；110- pedestals；
111- third protrusions；120- first boss portion；
The first protrusions of 121-；130- second boss portion；
The first vias of 131-；The second vias of 132-；
140- ball grooves；200- outer housings；
The upper pipe nipples of 210-；Pipe nipple under 220-；
The second protrusions of 221-；300- top connections；
310- drilling fluid runners；400- rotating flow distribution axis；
410- first matches head piece；420- second matches head piece；
430- return ports；510- turbine rotors；
520- turbine stators；600- shunts end cap；
700- alignment bearings；710- clamp nuts；
720- thrust bearings；800- end covers；
810- end cap ontologies；The 5th protrusions of 820-；
830- fixed rings；910- throttle seat ontologies；
920- throttle seat lug bosses.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.In the absence of conflict, following embodiments and implementation
Feature in example can be combined with each other.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also can be indirectly connected through an intermediary that the interaction of the connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.
It should be noted that in the description of the present invention, term " first ", " second ", which are only used for facilitating, describes different portions
Part is not understood to indicate or imply ordinal relation, relative importance or the number for implicitly indicating indicated technical characteristic
Amount." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one of the features.
As oil exploitation gradually develops to deep-well, ultradeep well direction, in Process of Oil Well Drilling, except necessary non-brill
The time spent in well time, pure drilling, occupies 80% or more of entire activity duration, and therefore, the raising of drill bit rate of penetration has
Conducive to the reduction of drilling time.The raising of rate of penetration can not only improve drilling well business efficiency, reduce drilling cost, and
In some special circumstances, brill and timely sealing soon are carried out to special formation, is more advantageous to the generation for avoiding down-hole accident.For
This, deep-well, ultradeep well drillng operation in generally by drill bit be arranged impactor to improve drilling speed.
Impactor in the prior art mainly has axial impact device, reverse impactor and composite impact device.Axial impact device
Axial impact loading can be generated to drill bit, increase the cutting depth of cutting tooth, improve drill bit efficiency of breaking rock；But axial impact device
It can aggravate the stick slip vibration of drill bit.Reverse impactor can generate torsional pulse load to drill bit, reduce the stick slip vibration of drill bit；
But due to lacking the aid of the bit pressure on axial direction, efficiency of breaking rock is low.Composite impact device can apply axial force to drill bit simultaneously
And twisting resistance, overcome the defect of single direction impactor.Composite impact device in the prior art includes mainly drill headstock, shell
Body and top connection, drill headstock is for connecting external drill bit, and drill headstock is rotatedly connected with outer housing, the upper end of outer housing and top connection
It is fixedly connected, top connection is connected with external drilling tool, rotates therewith entire composite impact device under the drive of external drilling tool；Outside
It is equipped with reciprocating impact in shell to hammer into shape, the lower end of reciprocating impact hammer has special-shaped inclined-plane, and phase also is provided in the upper end of drill headstock
The special-shaped inclined-plane answered, reciprocating impact hammer can move up and down along the axial direction of outer housing under the impact of cleaner for high-pressure drilling fluid, lead to
The axial impact force of jump bit is converted to axial impact force and torsional pulse power on drill headstock by the contact for crossing Special-Shaped Surface, to
It realizes and compound action power is applied to drill bit.
But since subsurface environment is more severe, has rock debris frequently in the construction process and enters inside impactor,
So that it is more easy to wear using the composite impact device of the prior art its reciprocating impact hammer, so that composite impact device uses the longevity
It orders relatively low.
In order to overcome the drawbacks described above under the prior art, the purpose of the present invention is to provide a kind of pulsating composite impacts
Device, pulsating composite impact device of the invention are omitted reciprocating impact hammer structure, which thereby enhance pulsating composite impact device
Service life.
Present disclosure is described below in conjunction with attached drawing is detailed, so that those skilled in the art can be more
Detailed understanding present disclosure.
Fig. 1 is the structure diagram for the pulsating composite impact device that one embodiment of the invention provides；Fig. 2 is that the present invention one is implemented
The structure diagram for the drill headstock that example provides；Fig. 3 is the structure diagram for the rotating flow distribution axis that one embodiment of the invention provides；Fig. 4 is
The structure diagram for the lower pipe nipple that one embodiment of the invention provides；Fig. 5 is the structure for the end cover that one embodiment of the invention provides
Schematic diagram；Please refer to Fig. 1-Fig. 5.The present embodiment provides a kind of pulsating composite impact devices, including drill headstock 100,200 and of outer housing
The upper end of top connection 300, outer housing 200 is fixedly connected with top connection 300, and lower end and the drill headstock 100 of outer housing 200 rotate phase
Even；
Top connection 300 is equipped with drilling fluid runner 310, and drilling fluid can enter outer housing 200 by drilling fluid runner 310
It is interior；It is equipped with rotating flow distribution axis 400 in outer housing 200, driving device is equipped between rotating flow distribution axis 400 and outer housing 200, is being bored
Driving device can drive rotating flow distribution axis 400 to rotate under the driving of well liquid；
Drill headstock 100 includes pedestal 110 and boss portion, and pedestal 110 is rotatablely connected with outer housing 200, and boss portion stretches into outer
The inside of shell 200, boss portion include first boss portion 120 and second boss portion 130, and first boss portion 120 is set in second
The outside of boss portion 130, second boss portion 130 is interior to be equipped with axially extending bore, and the lower end of rotating flow distribution axis 400 is located at axially extending bore
Interior, the upper end in first boss portion 120 is equipped with multiple first protrusions 121, and multiple second protrusions 221, and phase are equipped in outer housing 200
Arc length between the first adjacent protrusion 121 is more than the arc length of the second protrusion 221, to make the first protrusion 121 and the second protrusion 221
Between form circumferential gap；The surface of rotating flow distribution axis 400 is equipped with first and matches head piece 420, the first flow with head piece 410 and second
Mouth 410 is located at the second tops for matching head piece 420, and second boss portion 130 is equipped with matches head piece 410 and second with head piece with first
420 compatible first via, 131 and second via 132 is equipped with axial gap between first via 131 and outer housing 200.
First matches head piece 420 and the second via 132 with head piece 410 and the first via 131, second under the driving of drilling fluid
Can periodic unicom, to make drilling fluid flow into circumferential gap and axial gap, to apply circumferential punching to drill headstock 100
Hit power and axial impact force.
Specifically, drill headstock 100 is for connecting external drill bit in the present embodiment, the interior taper being equipped with for connecting drill bit
Space, cone space inner surface are equipped with screw thread, which generally selects NC50 type screw threads, pass through the helicitic texture and drill bit
Connection can have the function that sealing and transmit torque, drill bit is driven to carry out the movement of rock cutting；The appearance of top connection 300
The tapered inclined-plane in face is equipped with external thread structure, in external drilling tool for connecting top drilling tool on the lateral wall of the tapered slope
Drive under impactor it is whole along can a direction keep rotation.It is connected through a screw thread between outer housing 200 and top connection 300 solid
It is fixed, can the sealing devices such as sealing ring be set in the junction of the two and be sealed.300 upper edge of top connection is axially arranged with drilling fluid
Runner 310 can be entered by drilling fluid runner 310 in outer housing 200 from the drilling fluid being discharged in external drilling tool.Outer housing 200
It is interior to be equipped with rotating flow distribution axis 400, driving device is equipped between rotating flow distribution axis 400 and outer housing 200, under the driving of drilling fluid
Driving device can drive rotating flow distribution axis 400 to rotate.
Drill headstock 100 includes pedestal 110 and boss portion, and pedestal 110 is rotatablely connected with outer housing 200, and boss portion stretches into outer
The inside of shell 200, boss portion include first boss portion 120 and second boss portion 130, and first boss portion 120 is set in second
The outside of boss portion 130, second boss portion 130 is interior to be equipped with axially extending bore, and the lower end of rotating flow distribution axis 400 is located at axially extending bore
Interior, i.e. the lower end of rotating flow distribution axis 400 is arranged in the inside of second boss 130.The upper end in first boss portion 120 is equipped with multiple the
One protrusion 121, is equipped with multiple second protrusions 221 in outer housing 200, and the arc length between the first adjacent protrusion 121 is more than the
The arc length of two protrusions 221, to make to form circumferential gap between the first protrusion 121 and the second protrusion 221；Rotating flow distribution axis 400
Surface be equipped with first with head piece 410 and second match head piece 420, first with head piece 410 be located at second match head piece 420 top,
Second boss portion 130 be equipped with first with head piece 410 and second with compatible first via, 131 and second mistake of head piece 420
Hole 132 is equipped with axial gap between first via 131 and outer housing 200.
With the rotation of rotating flow distribution axis 400, the cleaner for high-pressure drilling fluid in rotating flow distribution axis 400 can periodically pass through
First flows into head piece 410 and the first via 131 in the axial gap, to provide axial impact force for drill headstock 100；Simultaneously
Cleaner for high-pressure drilling fluid can be flowed into periodically with head piece 420 and the second via 132 in the circumferential gap by second, to be drill bit
Seat 100 provides circumferential impact force.
Axial impact force can generate pulsating axial impact loading to drill bit, increase the depth of Cutter wedging rock
Degree reduces rock and resists broken ability；Circumferential impact force can generate pulsating torsional pulse load to drill bit, increase drill bit pair
The chip-load of rock improves the cutting state of drill bit, and the twisting vibration of drill bit, axial impact and torsional pulse is inhibited to realize
Drill bit solid broken rock, improves efficiency of breaking rock, to improve the rate of penetration of hardpan, reduce the drilling well of hardpan at
This.
By foregoing description it can be found that the pulsating composite impact device of the present embodiment ensure that drill bit apply it is compound
Reciprocating impact hammer structure is omitted under the premise of impact, structure is relatively easy, which thereby enhances pulsating composite impact device
Service life.
Further, outer housing 200 includes upper pipe nipple 210 and lower pipe nipple 220, upper end and the top connection 300 of upper pipe nipple 210
It is fixedly connected, the lower end of upper pipe nipple 210 is fixedly connected with lower pipe nipple 220, the pedestal of the lower end and drill headstock 100 of lower pipe nipple 220
110 rotation connections.
Specifically, the lateral wall of pedestal 110 is equipped with multiple third protrusions 111 to raise up, multiple third protrusions 111
Circumferential direction along pedestal 110 is uniformly distributed；The lower end of lower pipe nipple 220 is equipped with multiple be used for and third protrusion 111 the matched 4th
Protrusion, multiple 4th protrusions are uniformly distributed along the circumferential direction of lower pipe nipple 220, pass through spline between third protrusion 111 and the 4th protrusion
It is connected and fixed, to drive drill headstock 100 to rotate.
It is additionally provided with ball grooves 140 between first boss portion 120 and lower pipe nipple 220, multiple rollings are equipped in ball grooves 140
Pearl, by the way that multiple balls are arranged to hang drill headstock 100.
Further, the driving device of the present embodiment is arranged in upper pipe nipple 210, and driving device includes the whirlpool being oppositely arranged
Wheel rotor 510 and turbine stator 520, turbine stator 520 are supported on the madial wall of upper pipe nipple 210, turbine rotor 510 and rotation
Pintle 400 is fixedly linked, and fluid passage is formed between turbine stator 520 and turbine rotor 510.
The upper end of rotating flow distribution axis is connected with shunting end cap 600, and the center-hole diameter of shunting end cap 600 is less than rotating flow distribution
The center-hole diameter of axis 400；Be additionally provided with return port 430 on rotating flow distribution axis 400, return port 430 for be connected to fluid passage and
Rotating flow distribution axis 400, return port 430 are located at the lower section of driving device.
The upper end of driving device is equipped with alignment bearing 700, to prevent the spin-ended inclination for turning pintle 400；Alignment bearing 700
Upper end is equipped with clamp nut 710, and clamp nut 710 is for compressing turbine rotor 510；The lower end of upper pipe nipple 210 is additionally provided with first
Step surface, First terrace are equipped with thrust bearing 720.
When in use, drilling fluid enters outer housing 200 to the pulsating composite impact device of the present embodiment from drilling fluid runner 310
Inside, a part of drilling fluid are flowed by shunting end cap 600 in rotating flow distribution axis, due to shunting the center-hole diameter of end cap 600
Less than the center-hole diameter of rotating flow distribution axis 400, therefore, the drilling fluid in rotating flow distribution axis 400 is not flowed into through alignment bearing 700
Gap flow into the fluid passage between turbine stator 520 and turbine rotor 510, and turbine rotor 510 is driven to rotate, to
Drive the rotation of entire rotating flow distribution axis 400 so that first matches head piece 420 and the with head piece 410 and the first via 131, second
Two vias, 132 periodic unicom.
The drilling fluid that driving turbine rotor 510 rotates is flowed back to through return port 430 in rotating flow distribution axis 400, and return port 430 is whole
Body is obliquely installed downward, in order to drain.
Further, the upper end in second boss portion 130 is supported on the inner wall of upper pipe nipple 210 in the present embodiment, upper pipe nipple
The lateral wall of 210 lower ends is threadedly coupled with the madial wall of lower 220 upper end of pipe nipple, is formed on the outer surface in second boss portion 130
Second step face, second step face are equipped with end cover 800, and end cover 800 is for realizing axial gap and circumferential gap
Sealing.
Specifically, end cover 800 includes end cap ontology 810 and the 5th protrusion 820 being arranged on end cap ontology, end cap
Ontology 810 is arranged in second boss portion 130, and the lower face of the 5th protrusion 820 is supported on the upper surface of the first protrusion 121,
5th protrusion 820 and the first protrusion 121 limit circumferential space jointly, and the arc length of the 5th adjacent protrusion 820 and second convex
Rise 221 arc length it is equal.Second protrusion 221 is located in the circumferential direction space, and the upper end of the second protrusion 221 is fastened on adjacent the
Between five protrusions 820；The first protrusion 121 rotates under the impact of drilling fluid, to be formed between circumferential direction between the second protrusion 221
Gap.
The top of end cap ontology 810 is additionally provided with fixed ring 830, and fixed ring 830 is threadedly coupled with second boss portion 130, with
The axial movement of end cover 800 is limited, fixed ring 830 and the lower end of upper pipe nipple 210 limit axial gap jointly.
Further, throttle seat is additionally provided in the drill headstock 100 of the present embodiment, throttle seat includes 910 He of throttle seat ontology
The diameter of the throttle seat lug boss 920 being arranged on throttle seat ontology 910, throttle seat lug boss 920 is less than rotating flow distribution axis 400
Internal diameter so that throttle seat lug boss 920 stretches into rotating flow distribution axis 400, throttle seat ontology 910 is equipped with multiple vertical let out
Discharge orifice, multiple discharge orifices are uniformly arranged in the circumferential direction.
The use process of the pulsating composite impact device of the present embodiment is further described below in conjunction with the accompanying drawings.Figure
6A be under first state in Fig. 1 A-A to sectional view；Fig. 6 B are the sectional view of B-B direction in Fig. 1 under first state；Fig. 7 A are the
Under two-state in Fig. 1 A-A to sectional view；Fig. 7 B are the sectional view of B-B direction in Fig. 1 under the second state, please refer to Fig. 6 A- figures
7B。
Under the drive of external drilling tool, itself is also rotated constantly the pulsating composite impact device of the present embodiment.Such as Fig. 6 A-
Shown in Fig. 6 B, when starting drilling well, drilling fluid is flowed by the drilling fluid runner 310 in top connection 300 in outer housing 200, one
Divide drilling fluid to shunt 600 centre bore of end cap by 400 upper end of rotating flow distribution axis to flow directly into rotating flow distribution axis 400, a part
Drilling fluid flows into the fluid passage between wheel stator 520 and turbine rotor 510, and driving turbine rotor 510 rotates, to drive rotation
Pintle is rotated along a direction.A part of drilling fluid in rotating flow distribution axis 400 matches head piece 410 and the first via through first
131 flow into axial gap, and the drilling fluid for flowing into axial gap generates impact to end cover 800, and pushes drill headstock 100 along axis
To moving downward.Another part drilling fluid in rotating flow distribution axis 400 flows into week through second with head piece 420 and the second via 132
To gap, the drilling fluid for flowing into circumferential gap generates impact to the first raised 121 side end faces of drill headstock 100, and pushes first
Protrusion 121 and end cover 800 rotate, to push drill headstock 100 circumferentially to rotate.At this point, third protrusion 111 and the 4th protrusion
The first state shown in Fig. 6 B.
As shown in Fig. 7 A- Fig. 7 B, rotating flow distribution axis 400 is rotated further, and first matches head piece 410 and the first via 131, second
It will be staggered with head piece 420 and the second via 132.Under superstructure Gravitative Loads, outer housing 200 moves downward, and pushes axial
Drilling fluid is flowed out through the first via 131 in gap, while the third on the 4th protrusion impact drill headstock 100 on outer housing 200
Protrusion 111 generates axial impact.Under device itself turning effort of pulsating composite impact, outer housing 200 will push circumferential gap
Interior drilling fluid is flowed out through the second via 132, the third on the side impact drill headstock 100 of the 4th protrusion on outer housing 200
The side of protrusion 111 generates torsional pulse, at this point, third protrusion 111 and the 4th protrusion are located at the second state shown in Fig. 7 B.
As the continuous rotation of rotating flow distribution axis 400, first matches head piece 420 with head piece 410 and the first via 131, second
With the second via 132 can periodic unicom, to make drilling fluid flow into circumferential gap and axial gap, with to drill headstock
100 apply circumferential impact force and axial impact force.By foregoing description it can be found that the pulsating composite impact device of the present embodiment
Frequency of impact control can be realized according to the rotating speed for adjusting turbine rotor 510, it is further only to need to control the drilling well flowed into
The flow and flow rate of liquid, control mode is simple, and efficiency of breaking rock is high.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of pulsating composite impact device, which is characterized in that including drill headstock, outer housing and top connection, the outer housing
Upper end is fixedly connected with the top connection, and the lower end of the outer housing is rotatedly connected with the drill headstock；
The top connection is equipped with drilling fluid runner, and drilling fluid can be entered by the drilling fluid runner in the outer housing；Institute
It states and is equipped with rotating flow distribution axis in outer housing, driving device is equipped between the rotating flow distribution axis and the outer housing, in drilling fluid
Driving under the driving device rotating flow distribution shaft rotation can be driven dynamic；
The drill headstock includes pedestal and boss portion, and the pedestal is rotatablely connected with the outer housing, and the boss portion stretches into institute
The inside of outer housing is stated, the boss portion includes first boss portion and second boss portion, and the first boss portion is set in described
The outside in second boss portion is equipped with axially extending bore in the second boss portion, and the lower end of the rotating flow distribution axis is located at the axis
Into through-hole, the upper end in the first boss portion is equipped with multiple first protrusions, and multiple second protrusions are equipped in the outer housing, and
Arc length between adjacent first protrusion is more than the arc length of second protrusion, to make the first protrusion and the second protrusion
Between form circumferential gap；The surface of the rotating flow distribution axis is equipped with first and matches head piece with head piece and second, and described first matches head piece
The top for matching head piece positioned at described second, the second boss portion are equipped with and are mutually fitted with head piece with head piece and second with described first
The first via and the second via matched are equipped with axial gap between first via and the outer housing.
2. pulsating composite impact device according to claim 1, which is characterized in that the outer housing includes upper pipe nipple under
The upper end of pipe nipple, the upper pipe nipple is fixedly connected with the top connection, and the lower end of the upper pipe nipple is fixed with the lower pipe nipple to be connected
It connects, the lower end of the lower pipe nipple is connect with the base rotation of the drill headstock.
3. pulsating composite impact device according to claim 2, which is characterized in that the lateral wall of the pedestal is equipped with more
A third protrusion to raise up, multiple third protrusions are uniformly distributed along the circumferential direction of the pedestal；Under the lower pipe nipple
End is equipped with multiple for raised with the third protrusion the matched 4th, weeks of multiple 4th protrusions along the lower pipe nipple
To being uniformly distributed, it is connected and fixed by spline between the third protrusion and the 4th protrusion；
It is additionally provided with ball grooves between the first boss portion and the lower pipe nipple, multiple balls are equipped in the ball grooves.
4. pulsating composite impact device according to claim 3, which is characterized in that the driving device is arranged on described
In pipe nipple, the driving device includes the turbine rotor and turbine stator being oppositely arranged, and the turbine stator is supported on described
On the madial wall of pipe nipple, the turbine rotor is fixedly linked with the rotating flow distribution axis, the turbine stator and turbine rotor it
Between be formed with fluid passage.
5. pulsating composite impact device according to claim 4, which is characterized in that the upper end of the rotating flow distribution axis connects
There are shunting end cap, the center-hole diameter of the shunting end cap to be less than the center-hole diameter of the rotating flow distribution axis；The rotation is matched
Return port is additionally provided on stream axis, the return port is for being connected to the fluid passage and the rotating flow distribution axis, the return port
Positioned at the lower section of the driving device.
6. pulsating composite impact device according to claim 5, which is characterized in that the upper end of the driving device is equipped with and helps
The upper end of positive bearing, the alignment bearing is equipped with clamp nut；The lower end of the upper pipe nipple is additionally provided with First terrace, and described
One step surface is equipped with thrust bearing.
7. pulsating composite impact device according to claim 6, which is characterized in that support the upper end in the second boss portion
On the inner wall of the upper pipe nipple, second step face, the second step face are formed on the outer surface in the second boss portion
It is equipped with end cover.
8. pulsating composite impact device according to claim 7, which is characterized in that the end cover includes end cap ontology
With the 5th protrusion being arranged on the end cap ontology, the end cap ontology is arranged in the second boss portion, and the described 5th
The lower face of protrusion is supported on the upper surface of first protrusion, and the 5th protrusion limits jointly with first protrusion
Circumferential space, and the arc length of adjacent the 5th protrusion is equal with the arc length of the second protrusion；Second protrusion is located at
In the circumferential direction space, and the upper end of second protrusion is fastened between adjacent the 5th protrusion.
9. pulsating composite impact device according to claim 8, which is characterized in that be additionally provided with above the end cap ontology
Fixed ring, the fixed ring are threadedly coupled with the second boss portion, described solid to limit the axial movement of the end cover
The lower end for determining ring and the upper pipe nipple limits the axial gap jointly.
10. pulsating composite impact device according to claim 9, which is characterized in that be additionally provided with throttling in the drill headstock
Seat, the throttle seat include throttle seat ontology and the throttle seat lug boss that is arranged on the throttle seat ontology, the throttle seat
The diameter of lug boss is less than the internal diameter of the rotating flow distribution axis, so that the throttle seat lug boss stretches into the rotating flow distribution axis
In, the throttle seat ontology is equipped with multiple vertical discharge orifices, and multiple discharge orifices are uniformly arranged in the circumferential direction.
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|---|---|---|---|
| CN201810474177.3A CN108412420B (en) | 2018-05-17 | 2018-05-17 | Pulsation type composite impactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474177.3A CN108412420B (en) | 2018-05-17 | 2018-05-17 | Pulsation type composite impactor |
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| CN108412420B CN108412420B (en) | 2024-03-22 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162634A (en) * | 2018-10-08 | 2019-01-08 | 北京工业大学 | High frequency axial pulse percussion drilling tool |
| CN109469445A (en) * | 2019-01-17 | 2019-03-15 | 北京工业大学 | Two-way resonance drilling speed tool |
| CN110485927A (en) * | 2019-08-26 | 2019-11-22 | 北京工业大学 | A kind of three-dimensional hydraulic oscillation drag reduction drilling tool |
| CN110566120A (en) * | 2019-09-11 | 2019-12-13 | 中煤科工集团西安研究院有限公司 | Multi-power directional combined drilling tool for hard rock of coal mine underground coal seam bottom plate and hole forming method thereof |
| CN111577141A (en) * | 2020-04-29 | 2020-08-25 | 北京工业大学 | Turbine type hydraulic oscillator for well drilling |
| CN114922581A (en) * | 2022-05-27 | 2022-08-19 | 重庆科技学院 | Underground casing continuous hole forming device and working method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291214A (en) * | 2013-06-19 | 2013-09-11 | 中国石油大学(华东) | Reciprocating type hydraulic-drive impacter |
| CN104563862A (en) * | 2014-12-17 | 2015-04-29 | 中国石油大学(北京) | Composite impact well drilling tool |
| CN106121513A (en) * | 2016-07-05 | 2016-11-16 | 西南石油大学 | A kind of composite impact drilling tool |
| CN206942656U (en) * | 2017-03-31 | 2018-01-30 | 西南石油大学 | Drilling tool with axial waterpower pulse and circumferential percussion |
| CN208380498U (en) * | 2018-05-17 | 2019-01-15 | 北京工业大学 | Pulsating composite impact device |
-
2018
- 2018-05-17 CN CN201810474177.3A patent/CN108412420B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291214A (en) * | 2013-06-19 | 2013-09-11 | 中国石油大学(华东) | Reciprocating type hydraulic-drive impacter |
| CN104563862A (en) * | 2014-12-17 | 2015-04-29 | 中国石油大学(北京) | Composite impact well drilling tool |
| CN106121513A (en) * | 2016-07-05 | 2016-11-16 | 西南石油大学 | A kind of composite impact drilling tool |
| CN206942656U (en) * | 2017-03-31 | 2018-01-30 | 西南石油大学 | Drilling tool with axial waterpower pulse and circumferential percussion |
| CN208380498U (en) * | 2018-05-17 | 2019-01-15 | 北京工业大学 | Pulsating composite impact device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162634A (en) * | 2018-10-08 | 2019-01-08 | 北京工业大学 | High frequency axial pulse percussion drilling tool |
| CN109469445A (en) * | 2019-01-17 | 2019-03-15 | 北京工业大学 | Two-way resonance drilling speed tool |
| CN109469445B (en) * | 2019-01-17 | 2020-05-22 | 北京工业大学 | Bidirectional resonance drilling speed-increasing tool |
| CN110485927A (en) * | 2019-08-26 | 2019-11-22 | 北京工业大学 | A kind of three-dimensional hydraulic oscillation drag reduction drilling tool |
| CN110566120A (en) * | 2019-09-11 | 2019-12-13 | 中煤科工集团西安研究院有限公司 | Multi-power directional combined drilling tool for hard rock of coal mine underground coal seam bottom plate and hole forming method thereof |
| CN111577141A (en) * | 2020-04-29 | 2020-08-25 | 北京工业大学 | Turbine type hydraulic oscillator for well drilling |
| CN114922581A (en) * | 2022-05-27 | 2022-08-19 | 重庆科技学院 | Underground casing continuous hole forming device and working method thereof |
| CN114922581B (en) * | 2022-05-27 | 2023-08-18 | 重庆科技学院 | Underground casing pipe continuous perforating device and working method thereof |
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| CN108412420B (en) | 2024-03-22 |
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