CN106089138B - Improve the loose single tube drilling tool for easily washing away formation core taking rate - Google Patents
Improve the loose single tube drilling tool for easily washing away formation core taking rate Download PDFInfo
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- CN106089138B CN106089138B CN201610642774.3A CN201610642774A CN106089138B CN 106089138 B CN106089138 B CN 106089138B CN 201610642774 A CN201610642774 A CN 201610642774A CN 106089138 B CN106089138 B CN 106089138B
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- Prior art keywords
- basket
- flushing liquor
- rock core
- valve element
- core
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- 238000005553 drilling Methods 0.000 title claims abstract description 52
- 238000005406 washing Methods 0.000 title claims abstract description 13
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 7
- 238000011010 flushing procedure Methods 0.000 claims abstract description 67
- 239000011435 rock Substances 0.000 claims abstract description 58
- 230000006641 stabilisation Effects 0.000 claims abstract description 21
- 238000011105 stabilization Methods 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 25
- 239000012530 fluid Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
- 230000002262 irrigation Effects 0.000 claims description 3
- 238000003973 irrigation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 abstract description 3
- 235000012211 aluminium silicate Nutrition 0.000 abstract description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 239000004744 fabric Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241001045988 Neogene Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 101150091879 neo gene Proteins 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
-
- 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
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- 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
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
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
The loose single tube drilling tool for easily washing away formation core taking rate is improved the invention discloses a kind of, it is by voltage stabilization shunting device, basket, division box and step drill composition, division box is located in basket, voltage stabilization shunting device is arranged on basket upper end, step drill is arranged on basket lower end, it is big that the single tube drilling tool is applied to stickiness, plasticity is strong, the core drilling that kaolin of water-swellable etc. loosely easily washes away stratum is cored work, pass through the combination of each device, can be under conditions of the smooth row's powder of bottom hole be ensured, flushing liquor is avoided vertically to wash away rock core, the flushing flow velocity in basket around rock core is reduced simultaneously, reduce souring of the flushing liquor to rock core, so as to improve the integrity degree for drilling through rock core, improve core recovery percentage.
Description
Technical field
The loose single tube drilling tool for easily washing away formation core taking rate is improved the present invention relates to a kind of, be particularly suitable for use in stickiness
Greatly, strong, kaolin of water-swellable of plasticity etc. easily washes away the core drilling on stratum.
Background technology
Coring method is closely related with drilling method, should from drilling method is supporting is adapted to different rock ore bed rock cores, core
The physico-mechanical properties and difficulty or ease of coring accordingly that the selection of method should be formed according to the composition and architectural characteristic of rock ore bed
Degree selection drilling and coring method.Single tube core drill is simple in construction, in geological core drilling, is used for top the 4th
System, Neogene System, Paleogene System rock ore bed coring.Stickiness is big, plasticity is strong, the kaolin of water-swellable and loosely easily washes away
Stratum in when carrying out geological core drilling, it is big that used bentonite rinses fluid viscosity, can not use two-tube drilling tool, Zhi Nengxuan
With the coring method of individual layer rock core pipe drilling tool, in drilling operation, flushing liquor can constantly wash away to rock core in basket, cause
Core recovery percentage is relatively low, currently for the coring method for loosely easily washing away stratum, mainly by improving property of flush fluid, from conjunction
Suitable Drilling Techno-logical, advance drilling are first-class, are still used to improve taking for loose easily brush stratum without perfect a whole set of single tube drilling tool
Heart rate.
The content of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, proposes a kind of list for improving and loosely easily washing away formation core taking rate
Pipe drilling tool.Prevent that flushing liquor is to the vertical souring of rock core, drop in basket by modes such as voltage stabilizing, shunting, stop, reductions of speed
Flow velocity is rinsed in low basket around rock core, reduces souring of the flushing liquor to rock core, ensures rock core integrity degree, improves rock
Heart taking rate.
The present invention is made up of voltage stabilization shunting device, basket, division box and step drill, and the drilling tool can be used for loose
The geological drilling on stratum is easily washed away, rock core can be effectively improved and cored rate.
Voltage stabilization shunting device is made up of housing, adjusting gasket, spring and valve element, and hull outside has flushing liquor outlet,
Case inside has flushing liquor entrance, and flushing liquor entrance is connected with flushing liquor outlet, and flushing liquor entrance and flushing liquor outlet are 3
~4 groups；Valve element is located between flushing liquor entrance and flushing liquor outlet, and spring is set at the top of valve element, and the top of spring sets regulation
Pad, spring support valve element, make valve element closure between flushing liquor entrance and flushing liquor outlet,
Voltage stabilization shunting device upper end is connected with drilling rod, and voltage stabilization shunting device bottom is connected with basket；When being rinsed in drilling tool
When the pressure of liquid is more than spring to the pressure of valve element, valve element is up, and partial flushing liquid is through flushing liquor entrance and flushing liquor outlet stream
Going out to drilling tool, the Opening pressure of valve element controls with spring and adjusting gasket, when the thickness of adjusting gasket is big, spring
Big to the pressure of valve element, the Opening pressure of valve element is with regard to big；When the thickness of adjusting gasket is small, spring is small to the pressure of valve element, valve
The Opening pressure of core is with regard to small；
Voltage stabilization shunting device is terminated on basket, step drill is terminated under basket, rock core inside pipe wall has interior kerve, is
Process and obtain on common rock core inside pipe wall, the quantity of interior kerve is 4~6 groups, 2~3mm of depth of interior kerve, each interior to draw
Radian corresponding to groove is 20 °~30 °, and the seamed edge of interior kerve does fillet processing, prevents in basket and rock core relative rotational motion
Middle seamed edge is ground rock core.Increase the appropriately sized and interior kerve of quantity in basket inwall, rock core can ensured in basket
In stability while, expand the annular clearance of rock core and basket, reduce the flushing flow velocity around rock core.
Division box is made up of tapered cap and fixed-wing, and tapered cap is located in basket, in tapered cap base and basket
There is gap between wall, as passage of irrigation fluid, the width and quantity of fixed-wing are identical with the interior kerve width and quantity of basket,
Fixed-wing is located in the interior kerve of basket, and its effect is to maintain division box and the relative position of basket is constant, makes a point water
Device remains that tapered cap is upward；In a new drilling round trip starting, division box is located at rock core bottom of the tube, with rock core
Progress into basket, rock core promotes division box to rise, and the division box moment on rock core top, avoids flushing liquor to rock core
Vertically wash away.
Step drill is made up of rigid body, rectangle PDC composite sheets, triangle PDC composite sheets, the mouth of a river, gage surface and jump ring, just
Jump-ring slot is provided with body, jump ring is placed in jump-ring slot, and jump ring is used for card coring；Rectangle PDC composite sheets and triangle PDC are answered
It is chip cutting tooth to close piece, is made up of and is combined diamond layer and cemented carbide substrate, and cloth tooth mode should meet cloth tooth original
Then, i.e., cutting tooth covers whole shaft bottoms and crushes ring belt；Triangle PDC composite sheets are in the downside of rectangle PDC composite sheets, triangle
PDC composite sheets crush inner ring rock core, and rectangle PDC composite sheets crush outer ring rock core, and this advanced arrangement can effectively protect rock
The heart；The mouth of a river coordinates with cutting tooth to be arranged, flushing liquid energy is effectively excluded rock dust, is cooled down drill bit；Gage surface tungsten carbide button or
Polycrystalline diamond realizes gauge.
The application method of the present invention comprises the following steps：
1st, according to flushing liquor parameter, hole depth, pump pressure, from suitable adjusting gasket and spring assembly, can test valve element
Whether normal work, test valve element Opening pressure are suitable；
2nd, voltage stabilization shunting device, basket and step drill are sequentially connected in drilling rod lower end, ensure to connect jail at each screw thread
Gu；
3rd, drilling tool is transferred to bottom hole, and core-drilling, starting is using the slow-speed of revolution, low the pressure of the drill, normal pump amount drilling, gradually increase
Drilling speed and it is pumped to normal；
4th, round trip terminates, and observation rock core integrity degree and cores rate, if rate of coring is relatively low or disintegration of core, can pass through selection
The less adjusting gasket of thickness changes the larger spring of stiffness factor, increases by the flushing fluid of flushing liquor outlet outflow.
If the 5th, occur pump amount in drilling process persistently to raise or the situation of bit freezing, it may be possible to because flushing liquor passes through
The flow of flushing liquor outlet outflow excessively causes, and can suitably increase adjusting gasket thickness or change the larger bullet of stiffness factor
Spring.
Beneficial effects of the present invention：
Voltage stabilizing shunting, reduction of speed are carried out to barrel interior flushing liquor by drilling tool structure, reduced in basket around rock core
Flushing flow velocity, with reference to the hierarchical arrangement of Cutter, reduce souring of the flushing liquor to rock core, improve core sampler
Rate.
Brief description of the drawings
Fig. 1 is the voltage stabilization shunting device schematic perspective view of the present invention.
Fig. 2 is the voltage stabilization shunting device half sectional view of the present invention.
Fig. 3 is the basket schematic perspective view of the present invention.
Fig. 4 is the division box schematic perspective view of the present invention.
Fig. 5 is the step drill schematic perspective view of the present invention.
Fig. 6 is the front view of the present invention.
Wherein：1- housings, 2- adjusting gaskets, 3- springs, the outlet of 4- flushing liquors, 5- valve elements, 6- flushing liquor entrances, 7- tapers
Cap, 8- fixed-wings, -9 rigid bodies, -10 rectangle PDC composite sheets, 11- triangle PDC composite sheets, the 12- mouths of a river, 13- gage surfaces, 14-
Jump ring, kerve in 15-.
Embodiment
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the present invention is by voltage stabilization shunting device A, basket B, divides water to fill
C and step drill D compositions are put, the drilling tool can be used for the loose geological drilling for easily washing away stratum, can effectively improve rock core and core rate.
Voltage stabilization shunting device A is made up of housing 1, adjusting gasket 2, spring 3 and valve element 5, and the outside of housing 1 has flushing liquor
Outlet 4, the inner side of housing 1 have flushing liquor entrance 6, and flushing liquor entrance 4 is connected with flushing liquor outlet 4, flushing liquor entrance 4 and punching
Washing lotion outlet 4 is 3~4 groups；Valve element 5 is located between flushing liquor entrance 4 and flushing liquor outlet 4, and the top of valve element 5 sets spring 3, bullet
The top of spring 3 sets adjusting gasket 2, and spring 3 supports valve element 5, make valve element 5 block flushing liquor entrance 4 and flushing liquor outlet 4 it
Between,
Voltage stabilization shunting device A upper ends are connected with drilling rod, and voltage stabilization shunting device A bottoms are connected with basket B；When being rushed in drilling tool
When the pressure of washing lotion is more than spring 3 to the pressure of valve element 5, valve element 5 is up, and partial flushing liquid is through flushing liquor entrance 6 and flushing liquor
Outlet 4 is flowed out to outside drilling tool, and the Opening pressure of valve element 5 controls with spring 3 and adjusting gasket 2, when the thickness of adjusting gasket 2
When spending big, spring 3 is big to the pressure of valve element 5, and the Opening pressure of valve element 5 is with regard to big；When the thickness of adjusting gasket 2 is small, spring 3 is right
The pressure of valve element 5 is small, and the Opening pressure of valve element 5 is with regard to small；
Voltage stabilization shunting device A is terminated on basket B, terminates step drill D under basket B, basket B inwalls have interior drawing
Groove, it is to process to obtain on common rock core inside pipe wall, the quantity of interior kerve is 4~6 groups, 2~3mm of depth of interior kerve, often
Radian corresponding to individual interior kerve is 20 °~30 °, and the seamed edge of interior kerve does fillet processing, prevents from relatively turning in basket B and rock core
Seamed edge grinding rock core during dynamic.Increase the appropriately sized and interior kerve of quantity in basket B inwalls, can exist ensureing rock core
While stability in basket B, expand rock core and basket B annular clearance, reduce the flushing flow velocity around rock core.
Division box C is made up of tapered cap 7 and fixed-wing 8, and tapered cap is located in basket, tapered cap base and basket
There is gap between inwall, as passage of irrigation fluid, the width and quantity and the interior kerve width and quantity phase of basket of fixed-wing
Together, fixed-wing is located in the interior kerve of basket, and it acts on and is to maintain division box and the relative position of basket is constant, makes point
Water installations remain that tapered cap is upward；In a new drilling round trip starting, division box C is located at basket B bottoms, with
Rock core progresses into basket B, and rock core promotes division box C to rise, and the division box C moment on rock core top, avoids flushing liquor
The vertical of rock core is washed away.
Step drill D is made up of rigid body, rectangle PDC composite sheets, triangle PDC composite sheets, the mouth of a river, gage surface and jump ring,
Jump-ring slot is provided with rigid body, jump ring is placed in jump-ring slot, jump ring is used for card coring；Rectangle PDC composite sheets 2 and triangle
PDC composite sheets are chip cutting tooth, are made up of and are combined diamond layer and cemented carbide substrate, and cloth tooth mode should meet cloth
Tooth principle, i.e. cutting tooth cover whole shaft bottoms and crush ring belt；Triangle PDC composite sheets are in the downside of rectangle PDC composite sheets, and three
Angular PDC composite sheets crush inner ring rock core, and rectangle PDC composite sheets crush outer ring rock core, and this advanced arrangement can be protected effectively
Protect rock core；The mouth of a river coordinates with cutting tooth to be arranged, flushing liquid energy is effectively excluded rock dust, is cooled down drill bit；Gage surface inlays hard conjunction
Gold or polycrystalline diamond realize gauge.
The application method of the present invention comprises the following steps：
1st, according to flushing liquor parameter, hole depth, pump pressure, combined from suitable adjusting gasket 2 and spring 3, test the energy of valve element 5
Whether no normal work, the test Opening pressure of valve element 5 are suitable；
2nd, voltage stabilization shunting device A, basket B and step drill D are sequentially connected in drilling rod lower end, as shown in figure 5, ensureing each
It is connected firmly at screw thread；
3rd, drilling tool is transferred to bottom hole, and core-drilling, starting is using the slow-speed of revolution, low the pressure of the drill, normal pump amount drilling, gradually increase
Drilling speed and it is pumped to normal；
4th, round trip terminates, and observation rock core integrity degree and cores rate, if rate of coring is relatively low or disintegration of core, can pass through selection
The less adjusting gasket 2 of thickness changes the larger spring 3 of stiffness factor, increases by the flushing fluid of flushing liquor outlet outflow.
If the 5th, occur pump amount in drilling process persistently to raise or the situation of bit freezing, it may be possible to because flushing liquor passes through
The flow of flushing liquor outlet outflow excessively causes, and can suitably increase the thickness of adjusting gasket 2 or change the larger bullet of stiffness factor
Spring 3.
Claims (2)
1. a kind of improve the loose single tube drilling tool for easily washing away formation core taking rate, it is characterised in that：It is by voltage stabilization shunting device
(A), basket (B), division box (C) and step drill (D) composition, the drilling tool can be used for the loose geology for easily washing away stratum to bore
Visit, rock core can be effectively improved and cored rate；
Voltage stabilization shunting device (A) is made up of housing (1), adjusting gasket (2), spring (3) and valve element (5), is had on the outside of housing (1)
There is flushing liquor to export (4), there is flushing liquor entrance (6) on the inside of housing (1), flushing liquor entrance (4) is connected with flushing liquor outlet (4)
Logical, flushing liquor entrance (4) and flushing liquor outlet (4) are 3~4 groups；Valve element (5) is located at flushing liquor entrance (4) and flushing liquor outlet
(4) between, spring (3) is set, the top of spring (3) sets adjusting gasket (2), and spring (3) supports valve element at the top of valve element (5)
(5) valve element (5) closure, is made between flushing liquor entrance (4) and flushing liquor outlet (4)；
Voltage stabilization shunting device (A) upper end is connected with drilling rod, and voltage stabilization shunting device (A) bottom is connected with basket (B)；When in drilling tool
When the pressure of flushing liquor is more than spring (3) to the pressure of valve element (5), valve element (5) is up, and partial flushing liquid is through flushing liquor entrance
(6) flowed out to flushing liquor outlet (4) outside drilling tool, the Opening pressure of valve element (5) is with spring (3) and adjusting gasket (2)
Control；
Voltage stabilization shunting device (A) is terminated on basket (B), step drill (D), basket (B) inwall tool are terminated under basket (B)
There is interior kerve (15), the seamed edge of interior kerve (15) does fillet processing；
Division box (C) is made up of tapered cap (7) and fixed-wing (8), and tapered cap (7) is located in basket (B), tapered cap (7)
There is gap between base and basket (B) inwall, as passage of irrigation fluid, width and quantity and the basket (B) of fixed-wing (8)
Interior kerve (15) width it is identical with quantity, fixed-wing (8) is located in the interior kerve (15) of basket (B), and its effect is to maintain
The relative position of division box (C) and basket (B) is constant, division box (C) is remained that tapered cap (7) is upward；One
Individual new drilling round trip starting, division box (C) is located at basket (B) bottom, as rock core progresses into basket (B), rock
The heart promotes division box (C) to rise, and division box (C) moment on rock core top, avoids flushing liquor from washing away the vertical of rock core；
Step drill (D) is by rigid body (9), rectangle PDC composite sheets (10), triangle PDC composite sheets (11), the mouth of a river (12), gauge
Face (13) and jump ring (14) form, and are provided with jump-ring slot in rigid body (9), jump ring (14) is placed in jump-ring slot, and jump ring (14) is used for
Card coring；Rectangle PDC composite sheets (2) and triangle PDC composite sheets (14) are chip cutting tooth, triangle PDC composite sheets
(11) inner ring rock core, rectangle PDC composite sheets are crushed in the downside of rectangle PDC composite sheets (10), triangle PDC composite sheets (11)
(10) outer ring rock core is crushed, the mouth of a river (12) coordinate with cutting tooth to be arranged, gage surface (13) tungsten carbide button or polycrystalline diamond
Realize gauge.
2. the loose single tube drilling tool for easily washing away formation core taking rate of a kind of raising according to claim 1, its feature exist
In：The quantity of described interior kerve (15) is 4~6 groups, 2~3mm of depth of interior kerve (15), corresponding to each interior kerve (15)
Radian is 20 °~30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610642774.3A CN106089138B (en) | 2016-08-08 | 2016-08-08 | Improve the loose single tube drilling tool for easily washing away formation core taking rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610642774.3A CN106089138B (en) | 2016-08-08 | 2016-08-08 | Improve the loose single tube drilling tool for easily washing away formation core taking rate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106089138A CN106089138A (en) | 2016-11-09 |
| CN106089138B true CN106089138B (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610642774.3A Active CN106089138B (en) | 2016-08-08 | 2016-08-08 | Improve the loose single tube drilling tool for easily washing away formation core taking rate |
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| CN (1) | CN106089138B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404458A (en) * | 2016-11-18 | 2017-02-15 | 河南广度超硬材料有限公司 | Drill bit capable of automatically sampling concrete |
| CN106907121B (en) * | 2017-04-21 | 2019-01-22 | 中国矿业大学 | A kind of the coring system and its application method of automatic segmentation deslagging and truncation core |
| CN109403901B (en) * | 2018-11-08 | 2023-11-10 | 深圳大学 | Drilling fluid channel structure of core drilling machine |
| CN111997550B (en) * | 2020-08-20 | 2023-03-17 | 中国煤炭地质总局勘查研究总院 | Loose stratum coring device and method |
| CN112267845B (en) * | 2020-09-24 | 2023-02-03 | 深圳华力岩土工程有限公司 | Stirring pile drilling and coring structure and operation process |
| CN113585997B (en) * | 2021-07-17 | 2024-06-25 | 巩建雨 | Controllable local hot-melt drill bit for drilling core by dry and wet drilling method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3712392A (en) * | 1970-12-22 | 1973-01-23 | Wheel Trueing Tool Co Of Ca Lt | Diamond drill assembly with bore hole support |
| US4800969A (en) * | 1987-11-24 | 1989-01-31 | Longyear Company | Fast descent core barrel apparatus |
| CN100354498C (en) * | 2005-11-02 | 2007-12-12 | 中国水电顾问集团成都勘测设计研究院 | Air down-the-hole hammer coring casing drill |
| CN102587855A (en) * | 2012-03-15 | 2012-07-18 | 中南大学 | Core drill suitable for breakable and weak formation |
| CN204002578U (en) * | 2014-05-28 | 2014-12-10 | 吉林大学 | A kind of strong pumping formula reverse cycle coring drill bit |
| CN205154030U (en) * | 2015-12-04 | 2016-04-13 | 吉林大学 | Anti - core bit that circulates of powerful suction formula of spiral flow |
| CN105507804B (en) * | 2016-01-26 | 2018-01-19 | 吉林大学 | A kind of ultrasonic activation cord coring drill |
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2016
- 2016-08-08 CN CN201610642774.3A patent/CN106089138B/en active Active
Also Published As
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|---|---|
| CN106089138A (en) | 2016-11-09 |
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