CN106223860B - A kind of application method of interior reaming PDC drill bit - Google Patents
A kind of application method of interior reaming PDC drill bit Download PDFInfo
- Publication number
- CN106223860B CN106223860B CN201610717127.4A CN201610717127A CN106223860B CN 106223860 B CN106223860 B CN 106223860B CN 201610717127 A CN201610717127 A CN 201610717127A CN 106223860 B CN106223860 B CN 106223860B
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- wing
- hole
- moving knife
- drill bit
- feed end
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000011435 rock Substances 0.000 claims abstract description 14
- 239000002360 explosive Substances 0.000 claims abstract description 8
- 239000003292 glue Substances 0.000 claims abstract description 6
- 238000005553 drilling Methods 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004080 punching 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
-
- 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
- E21B10/325—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 the cutter being shifted by a spring mechanism
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
A kind of application method of interior reaming PDC drill bit, it is related to a kind of interior expanding method, a datum hole (33) is first got on rock mass (32) using the drilling tool with interior reaming PDC drill bit equivalent diameter, then bit feed end (5) are put into the datum hole got in advance, and ensure the moving knife wing (9), another moving knife wing (29) is completely into aperture (34) afterwards and in the middle part of datum hole, the slotted hole A (7) of the moving knife wing and another moving knife wing is acted on by axis, the upper end of the moving knife wing and another moving knife wing starts to extend out and expand through hole (35) in the middle part of processing in datum hole；Then process with middle part expand through the datum hole in hole in explosive；Or place concrete or glue in datum hole and be inserted into drill rod, expanded using middle part and forms firm anti-taking off structure through hole；The present invention can get middle part using the two moving knife wings of interior reaming PDC drill bit in datum hole and expand through hole, greatly facilitate the placement of explosive or the fixation of reinforcing bar, drill rod.
Description
【Technical field】
The present invention relates to a kind of interior expanding methods, more particularly, to a kind of application method of interior reaming PDC drill bit.
【Background technology】
Well known, PDC drill bit is in fields such as petroleum gas, mine engineering, building foundation engineering construction, geology, the hydrology
It is widely used, PDC drill bit is uniformly distributed by the way that PDC teeth are arranged on the wing at bit feed end, that is, by multiple PDC teeth
On wing, at least three wings are arranged in drill bit on inlet side, when use PDC teeth to rock scrape cut or shear action into
Row broken rock operation, the groove between wing are formed the flow path groove of drill bit, so that landwaste is discharged by flow path groove；In rock mass or building
When foundation holes, usually used drill bit institute punched hole is the same hole of inner and outer diameter, but the effect in hole is different, so needing
Matched hole competence exertion maximum function is wanted to act on, such as in punching on rock mass and the explosive in hole, if use
When hole inner and outer diameter is the same, explosive just can not play maximal efficiency, that is, smaller to the explosion range of rock mass；It is solid on rock mass
When determining reinforcing bar, drill rod, needs to insert concrete in the borehole or then reinforcing bar or drill rod are inserted into concrete or glue by glue, wait mixing
Form the fixation to reinforcing bar or drill rod after solidifying soil or gelling are solid, such drilling can not also obtain the firm solid of reinforcing bar or drill rod
It is fixed；
【Invention content】
In order to overcome the shortcomings of in background technology, the present invention discloses a kind of application method of interior reaming PDC drill bit, using interior
The two moving knife wings of reaming PDC drill bit can be got in datum hole middle part expand the placement that explosive is greatly facilitated through hole or reinforcing bar,
The fixation of drill rod.
For achieving the above object, the present invention adopts the following technical scheme that：
A kind of application method of interior reaming PDC drill bit, including interior reaming PDC drill bit, are punched on rock mass or building foundation
When, a datum hole is first got on rock mass or building foundation using the drilling tool with interior reaming PDC drill bit equivalent diameter, then will be bored
Head is put into inlet side in the datum hole got in advance, and ensures the moving knife wing, another moving knife wing completely into behind aperture and in datum hole
Middle part makes equipment be powered after opening power supply, and the power of equipment drives connector rotation, and at this moment presses make bit feed end return
Contracting, the lower face synchronous compression spring of cylinder, Distance Shortened between bit feed end and the body of rod, at this moment the moving knife wing and another moving knife
The slotted hole A of the wing is acted on by axis, and the upper end of the moving knife wing and another moving knife wing starts to extend out, and is started in datum hole in the middle part of processing
Expand through hole, expands when middle part and take out drill bit after hole machined meets the requirements, the body of rod just loses pressure when taking out drill bit, at this moment bullet
Spring plays a role, and the cylinder of bit feed end lower part is made to move up, while the moving knife wing and another moving knife wing top are just given close to drill bit
Inlet side makes taking-up operation be smoothed out；Then process with middle part expand through the datum hole in hole in explosive；Or in datum hole
It places concrete or glue and is inserted into drill rod, expanded using middle part and form firm anti-taking off structure through hole；The interior reaming PDC drill bit
Structure, be equipped with expanding bit feed end in cylinder upper end, it is convex that the both sides at bit feed end are respectively equipped with spaced two
Starting board is spaced on the lateral surface of each wing and sets to wing is respectively equipped on four sides at the top outer rim at the bit feed end
There are multiple PDC teeth；It is equipped with necking down column in cylinder lower end, the lower end of the necking down column is equipped with buttress shaft；The upper surface of the body of rod is equipped with interior
The bottom hole in hole, the endoporus is equipped with blind hole；Buttress shaft is through in blind hole, and the upper and lower ends of spring withstand on endoporus bottom faces and column respectively
On the lower face of body, the lower part of cylinder is in the top of endoporus, is in the circular hole being arranged in the middle part of buttress shaft in the middle part of kelly, the card
The both sides of bar are respectively in the setting slotted hole B on the body of rod of blind hole both sides, and connector, the upper end of the body of rod are equipped in the lower end of the body of rod
Both sides are respectively equipped with wing seat, and the lower end of the moving knife wing and another moving knife wing is hingedly connected to by axis on wing seat respectively, moving knife
Slotted hole A oblique outside upper end is respectively equipped in the top wing body of the wing and another moving knife wing, it is oval to be respectively at two in the middle part of two axis
In the A of hole, the outer end of two axis is separately fixed in the axis hole A of the raised plate of bit feed end both sides, dynamic between two raised plates
Wing and another moving knife wing are obtained expanding when rising by slotted hole A.
The application method of the interior reaming PDC drill bit is respectively equipped on the lateral surface of the moving knife wing and another moving knife wing
Multiple PDC teeth.
The application method of the interior reaming PDC drill bit is divided on the upper end to medial surface of the moving knife wing and another moving knife wing
It She You not cambered surface transition.
The application method of the interior reaming PDC drill bit, the two wing seats being arranged on the body of rod are respectively two intervals
The tabs of setting, are respectively equipped with hole in two tabs, and the lower end of the moving knife wing and another moving knife wing is between tabs, and two
It is through in the middle part of root axis in the moving knife wing and the axis hole B of another moving knife wing lower end being respectively set, the both ends of two axis are fixed respectively
Articulated connection is formed in the hole of two tabs.
The application method of the interior reaming PDC drill bit, in one of wing upper end, horizontal direction, which is equipped with, lengthens
Wing, the elongated portion for lengthening wing is in the middle part of the upper surface at bit feed end, on two wings of the other three wing
End horizontal direction is respectively at the both sides for lengthening wing, and third wing upper end horizontal direction corresponds to the end for lengthening wing
Portion.
The application method of the interior reaming PDC drill bit, the bit feed end be column structure, bit feed end it is upper
The outer edge surface at end face and bit feed end is arc-shaped transition.
The application method of the interior reaming PDC drill bit, two middle side parts to the lower end at bit feed end are respectively equipped with plane,
Two raised plates are arranged at intervals in the plane of bit feed end side, and it is another that another two raised plate is arranged at intervals on bit feed end
In the plane of side.
The application method of the interior reaming PDC drill bit is set respectively at the slotted hole B collar extensions that body of rod both sides are respectively set
There are the oblong slots for widening lengthening, the expansion of kelly one end setting to be in one of oblong slots through head, it is another that lock nut connects kelly
The screw thread of setting, the lock nut is held to be in another oblong slots.
Due to using technical solution as described above, the present invention to have the advantages that：
Interior reaming PDC drill bit of the present invention and its application method, in use, utilizing the brill with equivalent diameter of the present invention
Tool first gets a datum hole, and then reaming PDC drill bit in the present invention is put into inlet side in the datum hole got in advance, opens power supply
Equipment drives connector rotation afterwards, and at this moment presses make the bit feed end of the present invention bounce back, cylinder lower end synchronous compression spring,
At this moment the moving knife wing and another moving knife wing upper end extend out, and the moving knife wing and another moving knife wing just start to get expansion warp in middle part in the middle part of hole
Hole, middle part are expanded through, when pulling back, power bit feed under spring action end automatically resets and can take out the present invention after the completion of hole；
Structure of the invention is reasonable, and the drawbacks of middle part is expanded through hole can not be got by effectively overcoming the prior art.
【Description of the drawings】
Fig. 1 is that the middle part that the present invention is got is expanded through pore structure schematic diagram；
Fig. 2 is the dimensional structure diagram of the present invention；
Fig. 3 is the assembling structure schematic diagram of the present invention；
Fig. 4 is the three-dimensional docking structure schematic diagram of the moving knife wing and raised plate of the present invention；
In figure：1, wing is lengthened；2, PDC teeth；3, wing；4, arc-shaped transition；5, bit feed end；6, plane；7, oval
Hole A；8, cylinder；9, the moving knife wing；10, wing seat；11, lock nut；12, oblong slots；13, the body of rod；14, connector；15, hole；16, raised
Plate；17, necking down column；18, circular hole；19, buttress shaft；20, spring；21, endoporus；22, kelly；23, screw thread；24, slotted hole B；25, blind
Hole；26, expand through head；27, cambered surface；28, axis hole A；29, another moving knife wing；30, axis hole B；31, axis hole C；32, rock mass；33, base
Hole；34, aperture；35, middle part is expanded through hole；36, bottom hole.
【Specific implementation mode】
The present invention can be explained in more detail by the following examples, the open purpose of the present invention is intended to the protection present invention
All changes and improvements in range, the invention is not limited in the following examples；
The application method of interior reaming PDC drill bit in conjunction with described in attached drawing 1 or 2,3 and 4, including interior reaming PDC drill bit, in rock
When being punched on body 32 or building foundation, using the drilling tool with interior reaming PDC drill bit equivalent diameter first in rock mass 32 or building foundation
On get a datum hole 33, then bit feed end 5 is put into the datum hole 33 got in advance, and ensure the moving knife wing 9, Ling Yidong
Wing 29 makes equipment be powered completely into behind aperture 34 and in 33 middle part of datum hole after opening power supply, and the power drive of equipment connects
First 14 rotate, and at this moment presses make bit feed end 5 bounce back, the lower face synchronous compression spring 20 of cylinder 8, bit feed end
Distance Shortened between 5 and the body of rod 13, at this moment the slotted hole A7 of the moving knife wing 9 and another moving knife wing 29 acted on by axis, the moving knife wing 9
Start to extend out with the upper end of another moving knife wing 29, beginning is expanded in the middle part of processing in datum hole 33 through hole 35, is expanded when middle part and is added through hole 35
Work takes out drill bit after meeting the requirements, and when taking out drill bit, the body of rod 13 just loses pressure, and at this moment spring 20 plays a role, and makes drill bit
It is moved up to the cylinder 8 of 5 lower part of inlet side, while the moving knife wing 9 and another 29 top of the moving knife wing just make taking-up make close to bit feed end 5
Industry is smoothed out；Then process with middle part expand through the datum hole 33 in hole 35 in explosive；Or it is placed in datum hole 33 mixed
Solidifying soil or glue are simultaneously inserted into drill rod, are expanded using middle part and form firm anti-taking off structure through hole 35.
The application method of the interior reaming PDC drill bit, the structure of the interior reaming PDC drill bit, set in 8 upper end of cylinder
It is column structure, upper surface and the bit feed end at bit feed end 5 to have expanding bit feed end 5, the bit feed end 5
5 outer edge surface is arc-shaped transition 4, and two middle side parts to the lower end at bit feed end 5 is respectively equipped with plane 6, between two raised plates 16
Every being arranged in the plane 6 of 5 side of bit feed end, another two raised plate 16 is arranged at intervals on 5 other side of bit feed end
In plane 6, to wing 3 is respectively equipped on four sides at the top outer rim at the bit feed end 5, in one of wing 3 upper end
Portion's horizontal direction, which is equipped with, lengthens wing 1, and the elongated portion for lengthening wing 1 is in the middle part of the upper surface at bit feed end 5, separately
Two wings, the 3 upper end horizontal direction of three wings 3 is respectively at the both sides for lengthening wing 1,3 upper end level side of third wing
To the correspondence end for lengthening wing 1, multiple PDC teeth 2 are equipped at intervals on the lateral surface of each wing 3；In 8 lower end of cylinder
Equipped with necking down column 17, the lower end of the necking down column 17 is equipped with buttress shaft 19；The upper surface of the body of rod 13 is equipped with endoporus 21, the endoporus 21
Bottom hole be equipped with blind hole 25；Buttress shaft 19 is through in blind hole 25, and the upper and lower ends of spring 20 withstand on 21 bottom faces of endoporus and column respectively
On the lower face of body 8, the lower part of cylinder 8 is in the top of endoporus 21, the circular hole that 22 middle part of kelly is arranged in 19 middle part of buttress shaft
In 18, the oblong slots 12 for widening lengthening, kelly 22 1 are respectively equipped at the slotted hole B24 collar extensions that 13 both sides of the body of rod are respectively set
The expansion of setting is held to be in one of oblong slots 12 through first 26, lock nut 11 connects the screw thread 23 of 22 other end of kelly setting, institute
It states lock nut 11 to be in another oblong slots 12, the both sides of the kelly 22 are respectively at the setting on the 25 both sides body of rod 13 of blind hole
In slotted hole B24, the kelly 22 can guarantee that bit feed end 5 will not fall off, and connector 14, the body of rod are equipped in the lower end of the body of rod 13
13 upper end both sides are respectively equipped with wing seat 10, and two be arranged on the body of rod 13 the wing seat 10 is respectively two spaced
Tabs, are respectively equipped with hole 15 in two tabs, and the lower end of the moving knife wing 9 and another moving knife wing 29 is between tabs, and two
It is through in the middle part of root axis in the moving knife wing 9 and the axis hole B30 of another 29 lower end of the moving knife wing being respectively set, the both ends difference of two axis
It is fixed in the hole 15 of two tabs and forms articulated connection, be respectively equipped in the top wing body of the moving knife wing 9 and another moving knife wing 29
Oblique slotted hole A7, two axis middle parts are respectively in two slotted hole A7 outside upper end, and the outer end of two axis is separately fixed at drill bit
To in the axis hole A28 of the raised plate 16 of 5 both sides of inlet side, distinguish on the upper end to medial surface of the moving knife wing 9 and another moving knife wing 29
Equipped with 27 transition of cambered surface, multiple PDC teeth 2, two raised plates 16 are respectively equipped on the lateral surface of the moving knife wing 9 and another moving knife wing 29
Between the moving knife wing 9 and another moving knife wing 29 obtained by slotted hole A7 it is expanding when rising.
Part not in the detailed description of the invention is the prior art.
Claims (8)
1. a kind of application method of interior reaming PDC drill bit, including interior reaming PDC drill bit, it is characterized in that：In rock mass (32) or building
When foundation holes, first one is got on rock mass (32) or building foundation using the drilling tool with interior reaming PDC drill bit equivalent diameter
Bit feed end (5) are then put into the datum hole (33) got in advance, and ensure the moving knife wing (9), Ling Yidong by a datum hole (33)
Wing (29) afterwards and in the middle part of datum hole (33), makes equipment be powered, the power of equipment completely into aperture (34) after opening power supply
Connector (14) is driven to rotate, at this moment presses make bit feed end (5) bounce back, the lower face synchronous compression spring of cylinder (8)
(20), Distance Shortened between bit feed end (5) and the body of rod (13), at this moment the moving knife wing (9) and another moving knife wing (29) is oval
Hole A (7) is acted on by axis, and the upper end of the moving knife wing (9) and another moving knife wing (29) starts to extend out, and starts to add in datum hole (33)
Expand in the middle part of work through hole (35), expands when middle part and take out drill bit after hole (35) processing meets the requirements, the body of rod (13) when taking out drill bit
Just pressure is lost, at this moment spring (20) plays a role, and so that the cylinder (8) of bit feed end (5) lower part is moved up, while the moving knife wing
(9) and another moving knife wing (29) top just makes taking-up operation be smoothed out close to bit feed end (5)；Then have processing
Explosive in the datum hole (33) through hole (35) is expanded at middle part；Or place concrete or glue in datum hole (33) and be inserted into drill rod, profit
Expanded with middle part and forms firm anti-taking off structure through hole (35)；The structure of the interior reaming PDC drill bit is set in cylinder (8) upper end
There is expanding bit feed end (5), the both sides of bit feed end (5) are respectively equipped with spaced two raised plate (16), described
To wing (3) is respectively equipped on four sides at the top outer rim at bit feed end (5), it is spaced and sets on the lateral surface of each wing (3)
There are multiple PDC teeth (2)；It is equipped with necking down column (17) in cylinder (8) lower end, the lower end of the necking down column (17) is equipped with buttress shaft (19)；
The upper surface of the body of rod (13) is equipped with endoporus (21), and the bottom hole of the endoporus (21) is equipped with blind hole (25)；Buttress shaft (19) is through blind hole
(25) in, the upper and lower ends of spring (20) are withstood on respectively on the lower face of endoporus (21) bottom faces and cylinder (8), cylinder (8)
Lower part is in the top of endoporus (21), is in the circular hole (18) being arranged in the middle part of buttress shaft (19) in the middle part of kelly (22), the kelly
(22) both sides are respectively in the setting slotted hole B (24) on blind hole (25) the both sides body of rod (13), the lower end in the body of rod (13)
Equipped with connector (14), the upper end both sides of the body of rod (13) are respectively equipped with wing seat (10), the moving knife wing (9) and another moving knife wing (29)
Lower end is hingedly connected to by axis on wing seat (10) respectively, is divided in the top wing body of the moving knife wing (9) and another moving knife wing (29)
Slotted hole A (7) that She You be not oblique outside upper end is respectively in two slotted hole A (7) in the middle part of two axis, the outer end difference of two axis
It is fixed in the axis hole A (28) of the raised plate (16) of bit feed end (5) both sides, the moving knife wing (9) between two raised plates (16)
It is expanding when being risen by slotted hole A (7) acquisitions with another moving knife wing (29).
2. the application method of interior reaming PDC drill bit according to claim 1, it is characterized in that：In the moving knife wing (9) and another dynamic
Multiple PDC teeth (2) are respectively equipped on the lateral surface of wing (29).
3. the application method of interior reaming PDC drill bit according to claim 1, it is characterized in that：In the moving knife wing (9) and another dynamic
Cambered surface (27) transition is respectively equipped on the upper end to medial surface of wing (29).
4. the application method of interior reaming PDC drill bit according to claim 1, it is characterized in that：It is arranged on the body of rod (13)
The two wing seats (10) are respectively two spaced tabs, and hole (15), the moving knife wing (9) are respectively equipped in two tabs
And the lower end of another moving knife wing (29) is between tabs, and the moving knife wing (9) and another moving knife wing are through in the middle part of two axis
(29) in the axis hole B (30) of lower end being respectively set, the both ends of two axis, which are separately fixed in the hole (15) of two tabs, to be formed
Articulated connection.
5. the application method of interior reaming PDC drill bit according to claim 1, it is characterized in that：In one of wing (3)
Upper end horizontal direction, which is equipped with, lengthens wing (1), and the elongated portion for lengthening wing (1) is in the upper of bit feed end (5)
In the middle part of end face, two wing (3) upper end horizontal directions of the other three wing (3) are respectively at the both sides for lengthening wing (1), third
A wing (3) upper end horizontal direction corresponds to the end of the lengthening wing (1).
6. the application method of interior reaming PDC drill bit according to claim 1, it is characterized in that：The bit feed end (5) is
Column structure, the upper surface of bit feed end (5) are arc-shaped transition (4) with the outer edge surface at bit feed end (5).
7. the application method of interior reaming PDC drill bit according to claim 1, it is characterized in that：The both sides at bit feed end (5)
Middle part to lower end is respectively equipped with plane (6), and two raised plates (16) are arranged at intervals on the plane (6) of bit feed end (5) side
On, another two raised plate (16) is arranged at intervals in the plane (6) of bit feed end (5) other side.
8. the application method of interior reaming PDC drill bit according to claim 1, it is characterized in that：Distinguish in the body of rod (13) both sides
The oblong slots (12) for widening lengthening are respectively equipped at slotted hole B (24) collar extension of setting, the expansion of kelly (22) one end setting is through head
(26) it is in one of oblong slots (12), lock nut (11) connects the screw thread (23) of kelly (22) other end setting, the lock
Cap (11) is in another oblong slots (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717127.4A CN106223860B (en) | 2016-08-19 | 2016-08-19 | A kind of application method of interior reaming PDC drill bit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717127.4A CN106223860B (en) | 2016-08-19 | 2016-08-19 | A kind of application method of interior reaming PDC drill bit |
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| Publication Number | Publication Date |
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| CN106223860A CN106223860A (en) | 2016-12-14 |
| CN106223860B true CN106223860B (en) | 2018-11-13 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939287B (en) * | 2017-12-28 | 2023-11-10 | 徐州徐工铁路装备有限公司 | Lengthened push rod of drilling trolley |
| CN113775296B (en) * | 2021-11-11 | 2022-02-18 | 胜利油田海胜实业有限责任公司 | PDC drill bit with adjustable caliber for marlite exploration |
| CN115142797B (en) * | 2022-08-30 | 2022-11-04 | 君临德益(山东)石油科技有限公司 | Pdc drill bit for petroleum drilling and its usage |
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| CN1523197A (en) * | 2003-05-09 | 2004-08-25 | 陆观宏 | Drill expanding aiguille of anchor shaft, anchor cable, stake and drill expanding technology |
| CN201535137U (en) * | 2009-09-17 | 2010-07-28 | 新奥气化采煤有限公司 | Expanding drill for well drilling |
| CN102155164A (en) * | 2011-02-24 | 2011-08-17 | 平顶山五环实业有限公司 | Thrust auxiliary reamer bit |
| CN103603602A (en) * | 2013-10-29 | 2014-02-26 | 河南理工大学 | Variable diameter drill by varying pushing force |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9388638B2 (en) * | 2012-03-30 | 2016-07-12 | Baker Hughes Incorporated | Expandable reamers having sliding and rotating expandable blades, and related methods |
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- 2016-08-19 CN CN201610717127.4A patent/CN106223860B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1523197A (en) * | 2003-05-09 | 2004-08-25 | 陆观宏 | Drill expanding aiguille of anchor shaft, anchor cable, stake and drill expanding technology |
| CN201535137U (en) * | 2009-09-17 | 2010-07-28 | 新奥气化采煤有限公司 | Expanding drill for well drilling |
| CN102155164A (en) * | 2011-02-24 | 2011-08-17 | 平顶山五环实业有限公司 | Thrust auxiliary reamer bit |
| CN103603602A (en) * | 2013-10-29 | 2014-02-26 | 河南理工大学 | Variable diameter drill by varying pushing force |
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| Publication number | Publication date |
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| CN106223860A (en) | 2016-12-14 |
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