CN110359840A - Hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device - Google Patents
Hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device Download PDFInfo
- Publication number
- CN110359840A CN110359840A CN201910720480.1A CN201910720480A CN110359840A CN 110359840 A CN110359840 A CN 110359840A CN 201910720480 A CN201910720480 A CN 201910720480A CN 110359840 A CN110359840 A CN 110359840A
- Authority
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- China
- Prior art keywords
- tube
- sand
- hole
- sliding sleeve
- sandblasting
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 58
- 239000011435 rock Substances 0.000 title claims abstract description 46
- 238000005488 sandblasting Methods 0.000 title claims abstract description 30
- 239000004576 sand Substances 0.000 claims abstract description 50
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 18
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000003082 abrasive agent Substances 0.000 abstract description 12
- 241001074085 Scophthalmus aquosus Species 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 5
- 230000035515 penetration Effects 0.000 abstract description 5
- 206010040844 Skin exfoliation Diseases 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 206010011376 Crepitations Diseases 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010438 granite Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004381 surface treatment 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
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
Abstract
Hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device, it is related to hot dry rock probing drilling tool technical field, including top connection, fixing sleeve, sliding sleeve, center tap, drainage tube, venturi nozzle, sand-ejecting tube, outer tube, inner tube, sand storage cavity, lower contact and resin balls, sliding sleeve closes side opening and sand storage cavity when normal drilling, and compressed air enters pneumatic down hole hammer along central gas flow channel.Resin balls are put into when mentioning brill, central gas flow channel is closed, pressure moment increases, sliding sleeve slides downwards, side opening and sand storage cavity are opened, it is passed through compressed air, compressed air enters drainage tube and generates negative pressure in mixing chamber, abrasive material in sand storage cavity under the air pressure collective effect on negative pressure and sand storage cavity top along sand-ejecting tube and draw sand hole enter in drainage tube mixing chamber mixed with compressed air after enter the venturi nozzle directive borehole wall, the present invention can effectively expand hole diameter, bottom hole is smoothly reached for green bit provides powerful guarantee, reduce and duplicate mentions going down process, improve rate of penetration.
Description
Technical field
The present invention relates to hot dry rocks to drill drilling tool technical field, in particular to a kind of hot dry rock pneumatic down-the-hole hammer drilling sandblasting
Reaming hole device.
Background technique
A kind of hot dry rock big, widespread renewable and clean energy resource as reserves has high Development volue and application
Prospect.Drilling well is the key link of hot dry rock exploitation.In hot dry rock strata drilling, there are many difficult points, including drilling environment temperature
Height affects the stability of drilling fluid and the service life of drilling tool；Hot dry rock principal lithologic is various metamorphic rocks and crystallization
Rock, rock mass densification is hard, and compression strength is high, and drillability is poor, common such as granite, granodiorite etc.；And drilling depth is big,
It is influenced by unfavorable factors such as deep hole confining pressure, fluid column chip hold down effects, not only rock strength hardness is obviously improved, to driller
Skill, plant maintenance etc. also proposed very high request.Using conventional rotary drilling method, detritus low efficiency, bit wear is fast, drilling well
It is at high cost, to seriously constrain large-scale developing and utilizing for hot dry rock.
From the point of view of detritus theory, DTH drilling technology is one of current solution hard-rock boring problem most efficient method.
Pneumatic down-the-hole hammer drilling is with its very high drilling efficiency, longer bit life, lower drilling cost, very low fluid column pressure holding
The distinguishing features such as effect have huge application prospect in hot dry rock drilling well.
Since conventional pneumatic down hole hammer drilling well does not have reaming hole function, and hot dry rock stratum abrasiveness is strong, out outside well drill bit
Diameter serious wear will usually descend rock bit reaming hole to guarantee that new air bit can smoothly reach bottom hole.This method increases
Add and put brill number, rate of penetration is low, and drilling cost is high.
Summary of the invention
For needing reaming hole before green bit under hot dry rock pneumatic down-the-hole hammer drilling, and existing lower rock bit reaming hole method
There are it is time-consuming longer the problems such as, the purpose of the present invention is to provide a kind of novel reliable for improving hot dry rock rate of penetration
Hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device.
The present invention to achieve the above object the technical solution adopted is that: hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole dress
It sets characterized by comprising top connection, fixing sleeve, sliding sleeve, center tap, drainage tube, venturi nozzle, sand-ejecting tube, outer tube, interior
Pipe, sand storage cavity, lower contact and resin balls, the top connection are threadedly attached in center tap upper end；The center tap is equipped with
Side opening, side opening are distributed along center tap even circumferential, and side opening is obliquely installed upwards；The sliding sleeve is connect with fixing sleeve by shear pin,
Sliding sleeve, center tap and inner tube coaxial arrangement, sliding sleeve top are located in center tap central passage, and sliding sleeve lower part is located at internal tube；
The fixing sleeve is located at the central passage top of center tap, and the top of fixing sleeve is resisted against on top connection bottom face；The text
Jet pipe and drainage tube are fixed in side opening in mound, and venturi nozzle, drainage tube and side opening are coaxial, venturi nozzle and drainage tube
Connection；Sand inlet corresponding with sand hole is drawn is offered on the drainage tube；The sand hole that draws is provided with center tap bottom；It is described outer
Pipe is between center tap and lower contact, and outer tube upper end is threadedly coupled with center tap, and the lower end of outer tube is threadedly coupled with lower contact；
Said inner tube is located at outer tube, and inner tube and outer coaxial tube are arranged, and the length of inner tube is less than the length of outer tube, and the upper end of inner tube is
Free end, the lower end of inner tube are threadedly attached in lower contact upper end；The ring that the sand storage cavity is formed between inner tube and outer tube
Shape chamber；The sand-ejecting tube is arranged inside sand storage cavity, and the bottom end of sand-ejecting tube is into sand end, and the top insertion of sand-ejecting tube is drawn in sand hole
And it is threadedly coupled with it；The resin balls are used to control the open topped of sliding sleeve closing or unlimited side opening and sand storage cavity.
Further, the angle of the side opening central axis and center tap central axis is 45 °~75 °.
Further, it is provided with the first sealing ring between the sliding sleeve and center tap, second is provided between sliding sleeve and inner tube
Sealing ring.
Further, the outer diameter of the sliding sleeve is d, and internal diameter 0.8d, the diameter of resin balls is 0.9d.
Further, said inner tube is divided into two sections, and upper section internal diameter is d, and upper segment length is identical as sliding sleeve length, in lower section
Diameter is 0.75d~0.8d.
Further, the drainage tube is fixed in side opening by flat key.
Further, setting is there are two sealing ring between the drainage tube and side opening, respectively third sealing ring and the 4th close
Seal.
Further, the venturi nozzle is bonded in nozzle block by seccotine, there are two unloading hole at the top of nozzle block,
Nozzle block is threadedly coupled with side opening.
Further, circlip is equipped with above the nozzle block.
Through the above design, the present invention can be brought the following benefits:
1, hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device proposed by the present invention can effectively expand hole diameter, be new
Drill bit smoothly reaches bottom hole and provides powerful guarantee, reduces and puts brill number, improves rate of penetration.
2, hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device proposed by the present invention avoids drilling tool and the hard of the borehole wall connects
Touching, reduces the abrasion of drilling tool, efficiently reduces the probability of drilling accident generation.
3, hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device proposed by the present invention, in normal drilling, in sand storage cavity
There is no abrasive material, central gas flow channel is closed when mentioning drilling row sandblasting reaming hole, is not in that abrasive material enters pneumatic down hole hammer destruction
The case where down-hole hammer internal precision element.
4, hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device proposed by the present invention is easy to use.Drilling is completed every time
Afterwards, top connection need to be only unscrewed before next use, taken out fixing sleeve and sliding sleeve, after cleaning, be packed into new shear pin, then will fix
It covers and is put into original position with sliding sleeve, then screw on top connection to reuse.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description explanation does not constitute improper restriction of the invention for understanding the present invention, in the accompanying drawings:
The structure of hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device Fig. 1 proposed by the invention when being normal drilling is shown
It is intended to.
Fig. 2 is the structural representation of hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device proposed by the invention after pitching
Figure.
It is respectively marked in figure as follows: 1- top connection, 2- center tap, 3- circlip, 4- unloading hole, 5- venturi nozzle, 6-
Nozzle carrier, the Lip river 7- Supreme Being jail gasket, 8- nut, 9- sliding sleeve, the second sealing ring of 10-, 11- sand-ejecting tube, 12- inner tube, 13- outer tube, 14-
Lower contact, 15- fixing sleeve, 16- shear pin, the first sealing ring of 17-, 18- drainage tube, 19- side opening, 20- flat key, the sealing of 21- third
Circle, 22- draw sand hole, the 4th sealing ring of 23-, 24- sand storage cavity, 25- resin balls.
Specific embodiment
In order to illustrate more clearly of the present invention, the present invention is done further below with reference to preferred embodiments and drawings
It is bright.It should be understood by those skilled in the art that.Specifically described content is illustrative and be not restrictive below, should not be with this
It limits the scope of the invention.
As shown in Figures 1 and 2, hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device, including top connection 1, fixing sleeve 15,
Sliding sleeve 9, center tap 2, drainage tube 18, venturi nozzle 5, sand-ejecting tube 11, outer tube 13, inner tube 12, sand storage cavity 24, lower contact 14 with
And resin balls 25, the top connection 1 are threadedly attached in 2 upper end of center tap；The center tap 2 is equipped with side opening 19, side opening
19 are distributed along 2 even circumferential of center tap, and side opening 19 is obliquely installed upwards, 19 central axis of side opening and 2 central axis of center tap
Angle is 45 °~75 °；The sliding sleeve 9 is connect with fixing sleeve 15 by shear pin 16, and sliding sleeve 9, center tap 2 and inner tube 12 are coaxially set
It sets, 9 top of sliding sleeve is located in 2 central passage of center tap, and 9 lower part of sliding sleeve is located inside inner tube 12, between sliding sleeve 9 and center tap 2
It is sealed with the first sealing ring 17, is sealed between sliding sleeve 9 and inner tube 12 with the second sealing ring 10, sliding sleeve 9 is with fixing sleeve 15 by cutting
16 connection of nail；The fixing sleeve 15 is located at the central passage top of center tap 2, and the top of fixing sleeve 15 is resisted against top connection 1
On bottom face, and pushed down by top connection 1；The venturi nozzle 5 and drainage tube 18 are fixed in side opening 19, and venturi nozzle
5, drainage tube 18 and side opening 19 are coaxial, and venturi nozzle 5 is connected to drainage tube 18；Sand hole is offered and drawn on the drainage tube 18
22 corresponding sand inlets；The sand hole 22 that draws is provided with 2 bottom of center tap；The outer tube 13 is located at center tap 2 and lower contact 14
Between, 13 upper end of outer tube is threadedly coupled with center tap 2, and the lower end of outer tube 13 is threadedly coupled with lower contact 14；Said inner tube 12 is set
It sets inside outer tube 13, inner tube 12 and outer tube 13 are coaxial, and the length of inner tube 12 is less than the length of outer tube 13, and the upper end of inner tube 12 is
Free end, the lower end of inner tube 12 are threadedly attached in 14 upper end of lower contact；The sand storage cavity 24 be inner tube 12 and outer tube 13 it
Between the annular chamber that is formed；The sand-ejecting tube 11 is arranged inside sand storage cavity 24, and the top insertion of sand-ejecting tube 11 is drawn in sand hole 22 simultaneously
It is threadedly coupled with it；The resin balls 25 are used to control the open topped of the masking of sliding sleeve 9 or unlimited side opening 19 and sand storage cavity 24.
The top connection 1 of hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device provided by the invention is connect with drill rod thread,
Lower contact 14 is threadedly coupled with pneumatic down hole hammer top connection；
The working principle of hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device provided by the invention: DTH drilling is used
Granitic mass after technology drilling, there is a large amount of micro-crack in the range of away from 0~10mm of hole wall, these crackles are deposited
The granite hardness around the borehole wall is set to decline and (can be delineated with pocket knife).When mentioning brill, abrasive material is carry with compressed air and passes through text
Jet pipe 5 sprays the borehole wall with lower speed in mound, so that it may which making these, there is the peelings of the rock mass of a large amount of crackles.This method class
The derusting by sandblasting being similar in metal surface treatment process, therefore it is named as sandblasting reaming hole.The mode of this sandblasting reaming hole not only subtracts
Lacked it is duplicate put brill number, rate of penetration is greatly improved, and avoid contacting firmly for drilling tool and hole wall, reduces
The abrasion of drilling tool.
When normal drilling, sliding sleeve 9 is connected on fixing sleeve 15 by shear pin 16；Sliding sleeve 9 is by 24 envelope of side opening 19 and sand storage cavity
It closes, compressed air enters pneumatic down hole hammer along central gas flow channel.When mentioning brill, resin balls 25 are put into, central gas flow channel is closed
It closes, pressure moment increases, and shear pin 16 is cut, and sliding sleeve 9 glides, and side opening 19 and sand storage cavity 24 are opened.
5 central axis of venturi nozzle and 2 central axis of center tap are 45 °~75 °, guarantee efficiently peeling off the borehole wall
The landwaste of generation and abrasive material can be discharged with certain upward velocity again while rock.
It is described mention drilling speed degree and when mentioning brill drill string rotational speed, depending on the peeling speed of rock of borehole, to guarantee well
Wall rock is peeled off to required thickness.
5 quantity of venturi nozzle can be increased or decreased according to the operating pressure and working efficiency of venturi nozzle 5, text
Jet pipe 5 is distributed along 2 even circumferential of center tap in mound, to guarantee that jet-stream wind and abrasive material cancel out each other to the active force of drilling tool.
Above-mentioned central gas flow channel by top connection 1, center tap 2, sliding sleeve 9, inner tube 12 and lower contact 14 central passage group
At；
Pitching activation system: by sliding sleeve 9, fixing sleeve 15, shear pin 16, inner tube 12 and resin balls 25,25 diameter of resin balls is
0.9d (9 outer diameter of sliding sleeve is d, internal diameter 0.8d), resin balls 25 can effectively seal sliding sleeve 9 after entering sliding sleeve 9, and it is upper that inner tube 12, which is divided,
Lower two sections, upper section internal diameter is d, and upper segment length is identical as 9 length of sliding sleeve, and lower section internal diameter is 0.75d~0.8d, and lower segment length depends on
In theoretical best single shot feeding per run.
Sandblasting reaming hole system: being side opening 19 to be filled in by drainage tube 18, and pass through third sealing ring 21 and the 4th sealing ring 23
What sealing was constituted, the sand inlet on drainage tube 18 is aligned with sand hole 22 is drawn, and drainage tube 18 is fixed in side opening 19 by flat key 20；
Venturi nozzle 5 is bonded in nozzle block 6 by seccotine；The top of nozzle block 6 has outside nozzle block 6 there are two unloading hole 4
Nozzle block 6 is screwed into side opening 19 by screw thread；Circlip 3 is set above nozzle block 6 to be prevented from falling off；11 top of sand-ejecting tube has outer spiral shell
Line first twists a nut 8 on sand-ejecting tube 11, then puts Lip river Supreme Being jail gasket 7, then sand-ejecting tube 11 is screwed into and draws sand hole 22, then tightens
Nut 8；Outer tube 13 is threadedly attached on center tap 2 and lower contact 14, and inner tube 12 is threadedly attached in lower contact 14,
Annular chamber between inner tube 12 and outer tube 13 is sand storage cavity 24.
When normal drilling: sliding sleeve 9 by 24 closed upper part of side opening 19 and sand storage cavity, compressed gas by central gas flow channel into
Enter lower section pneumatic down hole hammer, plays its effect for driving pneumatic down hole hammer work, cleaning landwaste and cooling drill bit.
When sandblasting reaming hole: 1. stopping to bore, put into resin balls 25, central gas flow channel is closed, pressure of the sliding sleeve 9 in compressed air
Power acts on lower cutting shear pin 16, slides into inner tube 12, side opening 19 and 24 top of sand storage cavity are opened；2. throwing sand, abrasive material falls in sliding sleeve 9
With in resin balls 25 then slide into sand storage cavity 24；3. the amount of abrasive put into is enough after filling sand storage cavity 24, brill is mentioned, is passed through pressure
Contracting air, compressed air enter drainage tube 18 and generate negative pressure in mixing chamber, and the abrasive material in sand storage cavity 24 is in negative pressure and sand storage cavity
Along sand-ejecting tube 11 and draw sand hole 22 under the air pressure collective effect on 24 tops to enter itself and compression in 18 mixing chamber of drainage tube empty
Enter venturi nozzle 5 after gas mixing, then the directive borehole wall is sprayed by venturi nozzle 5, according to abrasive material wear rate and abrasive material
The time required to input amount determines that abrasive material runs out of in sand storage cavity 24, stop being passed through compressed air and stopping before abrasive material runs out of
Mention brill；Then step is repeated 2. with step 3. until present apparatus lift-off needs reaming hole well section.
The above, only presently preferred embodiments of the present invention, are not intended to limit the invention, patent protection model of the invention
It encloses and is subject to claims, all equivalent constructions variations done with specification and accompanying drawing content of the invention, similarly
It should be included within the scope of the present invention.
Claims (9)
1. hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device characterized by comprising top connection, fixing sleeve, sliding sleeve, in
Connector, drainage tube, venturi nozzle, sand-ejecting tube, outer tube, inner tube, sand storage cavity, lower contact and resin balls, the top connection pass through
It is threaded in center tap upper end；The center tap is equipped with side opening, and side opening is distributed along center tap even circumferential, and side opening is to updip
Tiltedly setting；The sliding sleeve is connect with fixing sleeve by shear pin, sliding sleeve, center tap and inner tube coaxial arrangement, during sliding sleeve top is located at
In connector center channel, sliding sleeve lower part is located at internal tube；The fixing sleeve is located at the central passage top of center tap, and fixed
The top of set is resisted against on top connection bottom face；The venturi nozzle and drainage tube are fixed in side opening, and venturi nozzle,
Drainage tube and side opening are coaxial, and venturi nozzle is connected to drainage tube；It is offered on the drainage tube corresponding with sand hole is drawn into sand
Mouthful；The sand hole that draws is provided with center tap bottom；The outer tube is between center tap and lower contact, outer tube upper end and center tap
It is threadedly coupled, the lower end of outer tube is threadedly coupled with lower contact；Said inner tube is located at outer tube, and inner tube and outer coaxial tube are arranged,
The length of inner tube is less than the length of outer tube, and the upper end of inner tube is free end, and the lower end of inner tube is threadedly attached in lower contact
End；The annular chamber that the sand storage cavity is formed between inner tube and outer tube；The sand-ejecting tube is arranged inside sand storage cavity, sand-ejecting tube
Bottom end is into sand end, and the top insertion of sand-ejecting tube is drawn in sand hole and is threadedly coupled with it；The resin balls are for controlling sliding sleeve envelope
Close or open wide the open topped of side opening and sand storage cavity.
2. hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device according to claim 1, which is characterized in that the side opening
The angle of central axis and center tap central axis is 45 °~75 °.
3. hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device according to claim 1, which is characterized in that the sliding sleeve
It is provided with the first sealing ring between center tap, the second sealing ring is provided between sliding sleeve and inner tube.
4. hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device according to claim 1, which is characterized in that the sliding sleeve
Outer diameter be d, internal diameter 0.8d, the diameters of resin balls is 0.9d.
5. hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device according to claim 1, which is characterized in that said inner tube
It is divided into two sections, upper section internal diameter is d, and upper segment length is identical as sliding sleeve length, and lower section internal diameter is 0.75d~0.8d.
6. hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device according to claim 1, which is characterized in that the drainage
Pipe is fixed in side opening by flat key.
7. hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device according to claim 1 or 6, which is characterized in that described
There are two sealing rings, respectively third sealing ring and the 4th sealing ring for setting between drainage tube and side opening.
8. hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device according to claim 1, which is characterized in that the text mound
In jet pipe be bonded in nozzle block by seccotine, there are two unloading hole at the top of nozzle block, nozzle block is threadedly coupled with side opening.
9. hot dry rock pneumatic down-the-hole hammer drilling sandblasting reaming hole device according to claim 1, which is characterized in that the jet pipe
Seat top is equipped with circlip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910720480.1A CN110359840B (en) | 2019-08-06 | 2019-08-06 | Dry hot rock pneumatic down-the-hole hammer drilling sand blasting reaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910720480.1A CN110359840B (en) | 2019-08-06 | 2019-08-06 | Dry hot rock pneumatic down-the-hole hammer drilling sand blasting reaming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110359840A true CN110359840A (en) | 2019-10-22 |
| CN110359840B CN110359840B (en) | 2024-01-09 |
Family
ID=68223366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910720480.1A Active CN110359840B (en) | 2019-08-06 | 2019-08-06 | Dry hot rock pneumatic down-the-hole hammer drilling sand blasting reaming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110359840B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4100976A (en) * | 1976-12-06 | 1978-07-18 | Reed Tool Co. | Pneumatic impact drilling tool |
| CN101539007A (en) * | 2009-04-15 | 2009-09-23 | 中国石油大学(北京) | Abrasive jetting device and method for abrasive jetting flow and jetting perforation and multiple fracturing |
| CN202325440U (en) * | 2011-09-20 | 2012-07-11 | 中国石油大学(华东) | Ball seat type ejector |
| CN109025825A (en) * | 2018-10-10 | 2018-12-18 | 东北石油大学 | The self-priming particle stream flow drilling rig in underground based on Venturi effect |
| CN110043237A (en) * | 2019-05-31 | 2019-07-23 | 铁岭曲氏石油技术开发服务有限公司 | Plug-injection type sand blower of sliding sleeve and its control method |
| CN210370481U (en) * | 2019-08-06 | 2020-04-21 | 吉林大学 | Drilling, sand blasting and hole reaming device for dry hot rock pneumatic down-the-hole hammer |
-
2019
- 2019-08-06 CN CN201910720480.1A patent/CN110359840B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4100976A (en) * | 1976-12-06 | 1978-07-18 | Reed Tool Co. | Pneumatic impact drilling tool |
| CN101539007A (en) * | 2009-04-15 | 2009-09-23 | 中国石油大学(北京) | Abrasive jetting device and method for abrasive jetting flow and jetting perforation and multiple fracturing |
| CN202325440U (en) * | 2011-09-20 | 2012-07-11 | 中国石油大学(华东) | Ball seat type ejector |
| CN109025825A (en) * | 2018-10-10 | 2018-12-18 | 东北石油大学 | The self-priming particle stream flow drilling rig in underground based on Venturi effect |
| CN110043237A (en) * | 2019-05-31 | 2019-07-23 | 铁岭曲氏石油技术开发服务有限公司 | Plug-injection type sand blower of sliding sleeve and its control method |
| CN210370481U (en) * | 2019-08-06 | 2020-04-21 | 吉林大学 | Drilling, sand blasting and hole reaming device for dry hot rock pneumatic down-the-hole hammer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110359840B (en) | 2024-01-09 |
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