CN107965270A - Reacting cycle flow channel type twin-stage reamer - Google Patents
Reacting cycle flow channel type twin-stage reamer Download PDFInfo
- Publication number
- CN107965270A CN107965270A CN201711430896.7A CN201711430896A CN107965270A CN 107965270 A CN107965270 A CN 107965270A CN 201711430896 A CN201711430896 A CN 201711430896A CN 107965270 A CN107965270 A CN 107965270A
- Authority
- CN
- China
- Prior art keywords
- pedestal
- mandrel
- bucket
- reacting cycle
- welded
- 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.)
- Pending
Links
- 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 85
- 239000002893 slag Substances 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 abstract description 7
- 238000005553 drilling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241001366041 Astronesthes gemmifer Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 210000004233 talus Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
- E21B10/34—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools of roller-cutter type
-
- 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
- E21B10/08—Roller bits
- E21B10/16—Roller bits characterised by tooth form or arrangement
-
- 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
- E21B10/08—Roller bits
- E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids
-
- 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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
Landscapes
- 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
The present invention provides a kind of reacting cycle flow channel type twin-stage reamer, including reacting cycle assembly, reacting cycle assembly includes a mandrel for being internally provided with reacting cycle structure, the both ends of mandrel are female adapter, righting bucket before being welded with the housing of mandrel, level-one reaming pedestal, secondary chambering pedestal, righting bucket and slag absorbing bucket afterwards, spiral wing before being welded with the housing of preceding righting bucket, rear screw wing is welded with the housing of rear righting bucket, slag absorbing bucket is welded on the position between level-one reaming pedestal and secondary chambering pedestal on the housing of mandrel, slag absorbing bucket is connected by dreg inhaling pipe with mandrel, with being respectively welded reinforcing rib on the end face of rear righting bucket on the housing of mandrel, bit leg and double PDC wings are respectively fixed with level-one reaming pedestal and secondary chambering pedestal, the end of bit leg is connected with gear wheel.Different geology are present invention can be suitably applied to, single reaming section is big, and reaming is efficient, cutting edge fast changeable, cost-effective, prolongs the service life.
Description
Technical field
The invention belongs to horizontal directional drilling technology field, especially relates to one kind and is suitable for Pipeline Crossing by Horizontal Directional Drilling engineering
Reaming tool.
Background technology
Heavy caliber, pass through over long distances be present level Directional Drilling work progress emphasis and difficult point.Long range bad ground
Pass through common cone reamer.The no unified professional standard of common cone reamer processing and manufacturing at present, of poor quality, quick abrasion,
Consumption is big, and service life is generally low, and the drilling accident such as the snaggletooth palm, lost cone, loss of tooth is more.
During Horizontal directional through-passing, conventional cone reamer there are many shortcomings, such as：Single crushes area
It is small, using direct circulation deslagging efficiency it is low, using welding procedure gear wheel, bit leg it is non-exchange, of high cost etc., while expand over long distances
Hole, conventional reamer are also faced with that guidance capability is poor, drill rod boring tool swings that angle of inclination under big, drill assembly gravity is big to ask
Topic.
The content of the invention
In view of the above problems, it is above-mentioned to solve the object of the present invention is to provide a kind of reacting cycle flow channel type twin-stage reamer
The problem of pointed by background technology.
The present invention provides a kind of reacting cycle flow channel type twin-stage reamer, including：Reacting cycle assembly, reacting cycle assembly include one
Root mandrel, is provided with reacting cycle structure, the both ends of mandrel are female adapter, before being welded with the housing of mandrel in mandrel
Righting bucket, level-one reaming pedestal, secondary chambering pedestal, rear righting bucket and slag absorbing bucket, before being welded with the housing of preceding righting bucket
Spiral wing, is welded with rear screw wing on the housing of rear righting bucket, and slag absorbing bucket, which is welded on the housing of mandrel, is located at level-one
Position between reaming pedestal and secondary chambering pedestal, slag absorbing bucket are connected by dreg inhaling pipe with mandrel, on the housing of mandrel with
Reinforcing rib is respectively welded on the end face of righting bucket afterwards, bit leg is respectively fixed with level-one reaming pedestal and secondary chambering pedestal
With double PDC wings, the end of bit leg is connected with gear wheel.
Additionally, it is preferred that structure be to offer spanner groove at the both ends of the housing of mandrel.
Furthermore it is preferred that structure be that fixed bit leg and double is respectively equipped with level-one reaming pedestal and secondary chambering pedestal
The groove of PDC wings is arranged, the annular location between two grooves is equipped with flow path groove, and flow path groove is evenly distributed with along the circumferential direction of mandrel.
Furthermore preferable structure is, through hole is offered on bit leg and double PDC wings, in level-one reaming pedestal, two
Offer blind hole in the groove of level reaming pedestal, bit leg and double PDC wings by trip bolt be fastened on level-one reaming pedestal,
In the groove of secondary chambering pedestal.
Additionally, it is preferred that structure be bit leg and PDC wings being fastened in groove separately.
Furthermore it is preferred that structure be to offer semicircle in the end face of bit leg, level-one reaming pedestal and secondary chambering pedestal
The pin shaft hole of shape, axis pin is fixed with pin shaft hole by stop screw.
Furthermore preferable structure is, gauge teeth is welded with the palm back of bit leg, in the end set of double PDC wings
There is boss, wear-resistant strip is welded with boss.
Additionally, it is preferred that structure be that the both ends of dreg inhaling pipe are threadedly coupled with mandrel, slag absorbing bucket respectively, dreg inhaling pipe is along mandrel
Circumferential direction be evenly distributed with.
Furthermore it is preferred that structure be that the center line of the end face of nearly gear wheel side is connected in preceding spiral wing, rear screw wing
The center line with gear wheel median plane, the center line of double PDC wings median plane align respectively, preceding spiral wing, rear screw wing
Rotation direction it is identical with the direction of rotation of circulatory flow formula twin-stage reamer, inlayed on preceding spiral wing, rear screw wing
There are carbide button, the quantity of preceding spiral wing and the double PDC wings being fixed on level-one reaming pedestal, the quantity summation phase of gear wheel
Together, the quantity of rear screw wing is identical with the double PDC wings that are fixed on secondary chambering pedestal, the quantity summation of gear wheel.
Also a kind of reacting cycle flow channel type twin-stage reamer of the present invention, including：Reacting cycle assembly, reacting cycle assembly include one
Mandrel, is provided with reacting cycle structure, the both ends of mandrel are female adapter, and level-one is welded with the housing of mandrel in mandrel
Reaming pedestal, secondary chambering pedestal, rear righting bucket and slag absorbing bucket, spiral wing, is helped after before being welded with the housing of mandrel
Rear screw wing is welded with the housing of positive bucket, slag absorbing bucket is welded on the housing of mandrel to be expanded positioned at level-one reaming pedestal and two level
Position between the pedestal of hole, slag absorbing bucket are connected by dreg inhaling pipe with mandrel, on the housing of mandrel with the end face of rear righting bucket
Reinforcing rib is respectively welded, bit leg, the end connection of bit leg are respectively fixed with level-one reaming pedestal and secondary chambering pedestal
There is gear wheel.
The reacting cycle flow channel type twin-stage reamer provided using the invention described above, can obtain following technique effect：
(1) due to using gear wheel-PDC composite structures, twin-stage reaming design, the inserted reinforcing in bit leg back, screw fastening
Deng design, soft or hard complicated geological is adaptable, and single reaming section is big, and reaming is efficient, cutting edge fast changeable, saves significantly
About reamer buying expenses, extends reamer service life；
(2) it is front and rear to use spiral wing, all it is spaced on preceding spiral wing and rear screw wing and studs with carbide button, can
Effectively protection gear wheel, rear portion deslagging are combined using tub with flow channel type, and chip removal ability is strong, avoids talus deposit, can ensure
Track is unobstructed, improves righting effect；
(3) reacting cycle structure and technique are used, makes mud that there is higher upward velocity, in effectively solving, major diameter wears
The problem that more engineering slurry flow velocity is low, Cutting movement efficiency is low.
Brief description of the drawings
By reference to the explanation below in conjunction with attached drawing, and with the present invention is more fully understood, of the invention is other
Purpose and result will be more apparent and should be readily appreciated that.In the accompanying drawings：
Fig. 1 is the front view according to the reacting cycle flow channel type twin-stage reamer of the embodiment of the present invention one；
Fig. 2 is the right view according to the reacting cycle flow channel type twin-stage reamer of the embodiment of the present invention one；
Fig. 3 is the front view according to the reacting cycle flow channel type twin-stage reamer of the embodiment of the present invention two.
Reference numeral therein includes：1~reacting cycle assembly, 2~preceding righting bucket, 3~preceding spiral wing, 4~gear wheel, 5
~bit leg, 6~double PDC wings, 7~level-one reaming pedestal, 8~secondary chambering pedestal, 9~rear screw wing, 10~after help
Positive bucket, 11~rear reinforcing rib, 12~stop screw, 13~trip bolt, 14~dreg inhaling pipe, 15~slag absorbing bucket, 16~axis pin.
Embodiment
The specific embodiment of the present invention is described in detail below with reference to attached drawing.
Embodiment one
The cutting edge for the reacting cycle flow channel type twin-stage reamer that embodiment provides uses gear wheel-PDC combined type cutting structures.
Fig. 1 and Fig. 2 respectively illustrates the main view knot of according to embodiments of the present invention one reacting cycle flow channel type twin-stage reamer
Structure and the right side regard structure.
As Fig. 1 and Fig. 2 are jointly shown, reacting cycle flow channel type twin-stage reamer that the embodiment of the present invention one provides, including：Instead
Circulate assembly 1, preceding righting bucket 2, preceding spiral wing 3, gear wheel 4, bit leg 5, double PDC (Polycrystalline Diamond
Compact, composite polycrystal-diamond) wing 6, level-one reaming pedestal 7, secondary chambering pedestal 8, rear screw wing 9, rear righting
Bucket 10, rear reinforcing rib 11, stop screw 12, trip bolt 13, dreg inhaling pipe 14, slag absorbing bucket 15 and axis pin 16；Wherein, reacting cycle is total
Include a mandrel into 1, be provided with reacting cycle structure in mandrel, the both ends of mandrel are internal thread structure, preceding righting bucket 2, after
Righting bucket 10, level-one reaming pedestal 7 and secondary chambering pedestal 8 are respectively welded on the housing of mandrel, and preceding spiral wing 3 is welded on
On the housing of preceding righting bucket 2, rear screw wing 9 is welded on the housing of rear righting bucket 2；Slag absorbing bucket 15, which welds, is located at one on mandrel
Position between level reaming pedestal 7 and secondary chambering pedestal 8, the both ends of dreg inhaling pipe 14 connect with mandrel, 15 screw thread of slag absorbing bucket respectively
Connect, so that mandrel and slag absorbing bucket 15 be turned on；Reinforcing rib 11 is respectively welded at the end with rear righting bucket 10 on the housing of mandrel afterwards
On face；Spanner groove is offered respectively at the both ends of the housing of mandrel；Opened on level-one reaming pedestal 7 and secondary chambering pedestal 8
Groove equipped with fixed bit leg 5 with double PDC wings 6, annular location is equipped with flow path groove between two grooves, and flow path groove is along core
The circumferential direction of axis is evenly distributed with, and bit leg 5 is alternate with double PDC wings 6 to be fixed in groove；Bit leg 5 is thickeied, widened, in bit leg 5 and double
Offer through hole respectively on PDC wings, level-one reaming pedestal 7, secondary chambering pedestal 8 groove in correspond to through hole position
Blind hole is offered, bit leg 5 is fastened on level-one reaming pedestal 7, secondary chambering pedestal 8 with double PDC wings 6 by trip bolt 13
Groove in；Semicircular pin shaft hole is further opened with the end face of bit leg 5, level-one reaming pedestal 7 and secondary chambering pedestal 8,
Axis pin 16 is fixed in pin shaft hole by stop screw 12；Gauge teeth staggeredly is welded with the palm back of bit leg 5, gear wheel 4 connects
In the end of bit leg 5, boss is equipped with the end of double PDC wings 6, the wear-resistant strip of 6mm thickness is welded with boss；Gear wheel 4,
Double PDC wings 6, dreg inhaling pipe 14 are evenly distributed with along the circumferential direction of mandrel respectively, and double PDC wings 6, circumferential direction of the dreg inhaling pipe 14 along mandrel
It is alternate uniformly distributed；Preceding spiral wing 3 (is fixed on level-one reaming pedestal 7) center line and gear wheel 4 of the end face of side close to gear wheel 4
Median plane center line alignment, rear screw wing 9 (is fixed on secondary chambering pedestal 8) end face of side close to gear wheel 4
Center line aligns with the center line of the median plane of gear wheel 4, the rotation direction of preceding spiral wing 3 and rear screw wing 9 with reacting cycle stream
The direction of rotation of road formula twin-stage reamer is identical, and interval is inlaid with for protecting on preceding spiral wing 3, rear screw wing 9
The carbide button of gear wheel 4, the quantity of preceding spiral wing 3 and the double PDC wings 6 being fixed on level-one reaming pedestal 7, gear wheel 4
Quantity summation is identical, the quantity of rear screw wing 9 and the double PDC wings 6, the number of gear wheel 4 that are fixed on secondary chambering pedestal 8
It is identical to measure summation.
Embodiment two
The cutting edge for the compound reamer of reacting cycle flow channel type twin-stage that embodiment two provides uses cutter cutting structure.
Fig. 3 shows the front view structure of according to embodiments of the present invention two reacting cycle flow channel type twin-stage reamer.
As shown in figure 3, reacting cycle flow channel type twin-stage reamer provided by Embodiment 2 of the present invention, including：Reacting cycle assembly
1st, preceding spiral wing 3, gear wheel 4, bit leg 5, level-one reaming pedestal 7, secondary chambering pedestal 8, rear screw wing 9, rear righting bucket 10,
Reinforcing rib 11, stop screw 12, trip bolt 13, dreg inhaling pipe 14 afterwards, slag absorbing bucket 15 and axis pin 16；Gear wheel 4, bit leg 5, level-one expand
Hole pedestal 7, secondary chambering pedestal 8, rear screw wing 9, rear righting bucket 10, rear reinforcing rib 11, stop screw 12, trip bolt
13rd, the structure of dreg inhaling pipe 14, slag absorbing bucket 15 and axis pin 16 is identical with the structure for implementing one, the present embodiment two and the area of embodiment one
It is not：Righting bucket before being welded not on the housing of the mandrel of reacting cycle assembly 1, and preceding spiral wing 3 is directly welded at mandrel
On housing.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention answers the scope of the claims of being subject to.
Claims (10)
- A kind of 1. reacting cycle flow channel type twin-stage reamer, it is characterised in that including：Reacting cycle assembly (1), the reacting cycle assembly (1) include a mandrel, reacting cycle structure is provided with the mandrel, the both ends of the mandrel are female adapter, in institute State and preceding righting bucket (2), level-one reaming pedestal (7), secondary chambering pedestal (8), rear righting bucket (10) are welded with the housing of mandrel With slag absorbing bucket (15), preceding spiral wing (3) is welded with the housing of the preceding righting bucket (2), in the rear righting bucket (10) Housing on be welded with rear screw wing (9), the slag absorbing bucket (15), which is welded on the housing of the mandrel, is located at the level-one Position between reaming pedestal (7) and the secondary chambering pedestal (8), the slag absorbing bucket (15) by dreg inhaling pipe (14) with it is described Mandrel connects, with being respectively welded reinforcing rib (11) on the end face of the rear righting bucket (10) on the housing of the mandrel, Bit leg (5) and double PDC wings (6) are respectively fixed with the level-one reaming pedestal (7) and the secondary chambering pedestal (8), The end of the bit leg (5) is connected with gear wheel (4).
- 2. reacting cycle flow channel type twin-stage reamer as claimed in claim 1, it is characterised in that the two of the housing of the mandrel End offers spanner groove.
- 3. reacting cycle flow channel type twin-stage reamer as claimed in claim 1, it is characterised in that in the level-one reaming pedestal (7) and on the secondary chambering pedestal (8) groove of the fixed bit leg (5) and the double PDC wings (6) is respectively equipped with, Annular location between two grooves is equipped with flow path groove, and the flow path groove is evenly distributed with along the circumferential direction of the mandrel.
- 4. reacting cycle flow channel type twin-stage reamer as claimed in claim 3, it is characterised in that in the bit leg (5) and described Through hole is offered on double PDC wings (6), in the level-one reaming pedestal (7), the groove of the secondary chambering pedestal (8) Blind hole is inside offered, the bit leg (5) is fastened on the level-one by trip bolt (13) with the double PDC wings (6) and expands Hole pedestal (7), the secondary chambering pedestal (8) groove in.
- 5. reacting cycle flow channel type twin-stage reamer as claimed in claim 4, it is characterised in that the bit leg (5) and the PDC Wing (6) being fastened in the groove separately.
- 6. reacting cycle flow channel type twin-stage reamer as claimed in claim 1, it is characterised in that in the bit leg (5), described one The end face of level reaming pedestal (7) and the secondary chambering pedestal (8) offers semicircular pin shaft hole, in the pin shaft hole Axis pin (16) is fixed with by stop screw (12).
- 7. reacting cycle flow channel type twin-stage reamer as claimed in claim 1, it is characterised in that carried on the back in the palm of the bit leg (5) On be welded with gauge teeth, have boss in the end set of the double PDC wings (6), wear-resistant strip be welded with the boss.
- 8. reacting cycle flow channel type twin-stage reamer as claimed in claim 1, it is characterised in that the both ends of the dreg inhaling pipe (14) It is threadedly coupled respectively with the mandrel, the slag absorbing bucket (15), the dreg inhaling pipe (14) is evenly distributed with along the circumferential direction of the mandrel.
- 9. reacting cycle flow channel type twin-stage reamer as claimed in claim 1, it is characterised in that the preceding spiral wing (3), The rear screw wing (9) connect the center line of the end face of nearly gear wheel (4) side respectively with the gear wheel (4) median plane The center line alignment of center line, double PDC wings (6) median plane, the preceding spiral wing (3), the rear screw wing (9) rotation direction is identical with the direction of rotation of the circulatory flow formula twin-stage reamer, in the preceding spiral wing (3), described Carbide button is inlaid with rear screw wing (9), the quantity of the preceding spiral wing (3) is with being fixed on the level-one reaming pedestal (7) the double PDC wings (6) on, the quantity summation of gear wheel (4) are identical, and the quantity of the rear screw wing (9) is with being fixed on institute It is identical to state double PDC wings (6) on secondary chambering pedestal (8), the quantity summation of gear wheel (4).
- A kind of 10. reacting cycle flow channel type twin-stage reamer, it is characterised in that including：Reacting cycle assembly (1), the reacting cycle are total Including a mandrel into (1), reacting cycle structure is provided with the mandrel, the both ends of the mandrel are female adapter, Level-one reaming pedestal (7), secondary chambering pedestal (8), rear righting bucket (10) and slag absorbing bucket are welded with the housing of the mandrel (15), spiral wing (3) before being welded with the housing of the mandrel, after being welded with the rear on the housing of righting bucket (10) Spiral wing (9), the slag absorbing bucket (15) be welded on the housing of the mandrel positioned at the level-one reaming pedestal (7) with it is described Position between secondary chambering pedestal (8), the slag absorbing bucket (15) is connected by dreg inhaling pipe (14) with the mandrel, in the core With being respectively welded reinforcing rib (11) on the end face of the rear righting bucket (10) on the housing of axis, in the level-one reaming pedestal (7) with being respectively fixed with bit leg (5) on the secondary chambering pedestal (8), the end of the bit leg (5) is connected with gear wheel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711430896.7A CN107965270A (en) | 2017-12-26 | 2017-12-26 | Reacting cycle flow channel type twin-stage reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711430896.7A CN107965270A (en) | 2017-12-26 | 2017-12-26 | Reacting cycle flow channel type twin-stage reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107965270A true CN107965270A (en) | 2018-04-27 |
Family
ID=61996057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711430896.7A Pending CN107965270A (en) | 2017-12-26 | 2017-12-26 | Reacting cycle flow channel type twin-stage reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107965270A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550695A (en) * | 2020-04-26 | 2021-10-26 | 中国石油天然气集团有限公司 | Eccentric micro-reamer |
| CN114837566A (en) * | 2022-05-19 | 2022-08-02 | 奥瑞拓能源科技股份有限公司 | Spiral gear roller bit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034015Y (en) * | 2007-05-15 | 2008-03-12 | 上海管易地下管线工程技术有限公司 | Rock reamer with helical centralizer |
| CN102828695A (en) * | 2012-08-03 | 2012-12-19 | 杨国发 | Reverse-circulation slag-removal reamer bit |
| CN103147693A (en) * | 2013-03-22 | 2013-06-12 | 四川圆通建设有限公司 | Quick reamer capable of identifying recycled cone |
| CN103527093A (en) * | 2013-10-25 | 2014-01-22 | 武汉地网非开挖科技有限公司 | Jet-suction type reverse-circulation reamer for crossing of horizontal directional drilling |
| CN104234631A (en) * | 2013-06-09 | 2014-12-24 | 中国石油天然气集团公司 | Forward-reaming drilling tool for lithostratigraphic directional drilling crossing |
| CN105781426A (en) * | 2016-04-29 | 2016-07-20 | 西南石油大学 | Long-service-life drill bit with self-repairing capacity |
| CN207686610U (en) * | 2017-12-26 | 2018-08-03 | 重庆科技学院 | Reacting cycle flow channel type twin-stage reamer |
-
2017
- 2017-12-26 CN CN201711430896.7A patent/CN107965270A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034015Y (en) * | 2007-05-15 | 2008-03-12 | 上海管易地下管线工程技术有限公司 | Rock reamer with helical centralizer |
| CN102828695A (en) * | 2012-08-03 | 2012-12-19 | 杨国发 | Reverse-circulation slag-removal reamer bit |
| CN103147693A (en) * | 2013-03-22 | 2013-06-12 | 四川圆通建设有限公司 | Quick reamer capable of identifying recycled cone |
| CN104234631A (en) * | 2013-06-09 | 2014-12-24 | 中国石油天然气集团公司 | Forward-reaming drilling tool for lithostratigraphic directional drilling crossing |
| CN103527093A (en) * | 2013-10-25 | 2014-01-22 | 武汉地网非开挖科技有限公司 | Jet-suction type reverse-circulation reamer for crossing of horizontal directional drilling |
| CN105781426A (en) * | 2016-04-29 | 2016-07-20 | 西南石油大学 | Long-service-life drill bit with self-repairing capacity |
| CN207686610U (en) * | 2017-12-26 | 2018-08-03 | 重庆科技学院 | Reacting cycle flow channel type twin-stage reamer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550695A (en) * | 2020-04-26 | 2021-10-26 | 中国石油天然气集团有限公司 | Eccentric micro-reamer |
| CN114837566A (en) * | 2022-05-19 | 2022-08-02 | 奥瑞拓能源科技股份有限公司 | Spiral gear roller bit |
| CN114837566B (en) * | 2022-05-19 | 2023-03-14 | 奥瑞拓能源科技股份有限公司 | Spiral gear roller bit |
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Application publication date: 20180427 |