CN106194087A - A kind of heavy caliber jumping chisel journey core drill and core-drilling method - Google Patents
A kind of heavy caliber jumping chisel journey core drill and core-drilling method Download PDFInfo
- Publication number
- CN106194087A CN106194087A CN201610578377.4A CN201610578377A CN106194087A CN 106194087 A CN106194087 A CN 106194087A CN 201610578377 A CN201610578377 A CN 201610578377A CN 106194087 A CN106194087 A CN 106194087A
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- inner tube
- core
- drilling
- tube assembly
- assembly
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Classifications
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- 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
-
- 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
A kind of heavy caliber jumping chisel journey core drill and core-drilling method, described drilling tool is made up of single action mechanism, outer pipe assembly and inner tube assembly；Outer pipe assembly is provided with one group of outer tube assembly being from top to bottom sequentially connected in series, each of which group outer tube assembly all includes outer tube and reamer, outer tube is threadeded with reamer, being positioned at outer tube assembly middle external tube topmost to assemble with single action mechanism, the reamer being positioned in the outer tube assembly of bottom assembles with drill bit；Inner tube assembly is provided with one group of inner tube assembly being from top to bottom sequentially connected in series, and each group of inner tube assembly all includes standard inner tube and inner tube box cupling, and the standard inner tube being positioned in the inner tube assembly of the top is assembled with single action mechanism.The present invention gives drilling method.The problems such as the present invention solves that the drilling equipment amount of parts that " path core, the reaming of big footpath " finishing drilling pattern exists is many, complex operation step, long in time limit, engineering cost is high and drilling accident risk is big, reach to improve the purpose of Science Drilling economy and safety.
Description
Technical field
The present invention relates to a kind of core drill and core-drilling method, a kind of heavy caliber being applicable to Science Drilling
Jumping chisel journey core drill and core-drilling method, belong to drilling technology field.
Background technology
Science Drilling is to obtain the Use of Geophysical Data Scientific Engineering as main purpose in formation core and well, and it requires to obtain
Representative, continuous print, the formation in situ of high taking rate, native-state core.Exist owing to conventional core drill is applicable to boreHereinafter holing, the core diameter of acquisition existsHereinafter, rock core saturation is not more than 10m, therefore greatly
Bore well section, Science Drilling is had to, and " path is cored (generally in employing), the reaming of big footpath "
Finishing drilling pattern.
Above-mentioned " path core, the reaming of big footpath " finishing drilling pattern, must be equipped with path in work progress and cores and big footpath is expanded
Tubing, drilling tool and mud system are overlapped in hole two, and not only drilling equipment amount of parts is many, complex operation step, and faces reaming
Security risk, adds engineering cost.It addition, the conventional core drill rock core saturation less than 10m determines its round trip and cores
Drilling depth is less than 10m, thus considerably increases engineering and puts brill number of times, reduces efficiency of construction, extend the duration；Put simultaneously
Bore increasing and having increased the weight of the injury to the borehole wall of number of times, increase drilling accident risk.As can be seen here, in large-diameter well section,
The finishing drilling pattern of the conventional core drill that uses at present and " path core, the reaming of big footpath " is the caving-in bash of Science Drilling, tool
There are relatively low economy and safety.
Summary of the invention
The present invention provides a kind of heavy caliber jumping chisel journey core drill and core-drilling method, it is intended to " path is cored, greatly in solution
Footpath reaming " finishing drilling pattern exist drilling equipment amount of parts is many, complex operation step, long in time limit, engineering cost is high and hole
The problems such as interior accident risk is big, reach to improve the purpose of Science Drilling economy and safety.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of heavy caliber jumping chisel journey core drill, is made up of single action mechanism, outer pipe assembly and inner tube assembly；Its special feature
Being, described outer pipe assembly is provided with one group of outer tube assembly being from top to bottom sequentially connected in series, and each of which group outer tube assembly is equal
Including outer tube and reamer, described outer tube is threadeded with reamer, is positioned at outer tube assembly middle external tube topmost and single acting engine
Structure assembles, and the reamer being positioned in the outer tube assembly of bottom assembles with drill bit；Said inner tube assembly is provided with one group and from top to bottom depends on
The secondary inner tube assembly being connected in series, each of which group inner tube assembly all includes standard inner tube and inner tube box cupling, is positioned at topmost
Standard inner tube in pipe assembly is assembled with single action mechanism, and the inner tube box cupling lower end being positioned in the inner tube assembly of bottom connects regulation
Pipe, sets gradually clip spring seat and lower circlip seat in described regulation inner tube lower end, installs jump ring in described upper clip spring seat, described
Lower circlip seat is installed lower circlip.
Above-mentioned heavy caliber jumping chisel journey core drill, described outer tube connects with standard inner tube and inner tube with the length sum of reamer
The length sum of hoop is equal, and its positive negative error is not more than 5mm.
Above-mentioned heavy caliber jumping chisel journey core drill, the diameter of described outer tube is preferredDescribed standard inner tube and
Regulation diameter of inner pipe is preferredDescribed outside diameter is preferred
Above-mentioned heavy caliber jumping chisel journey core drill, the diameter of described outer tube is preferredDescribed standard inner tube and
Regulation diameter of inner pipe is preferredDescribed outside diameter is preferred
Above-mentioned heavy caliber jumping chisel journey core drill, the diameter of described outer tube is preferredDescribed standard inner tube and
Regulation diameter of inner pipe is preferredDescribed outside diameter is preferred
Above-mentioned heavy caliber jumping chisel journey core drill, the diameter of described outer tube is preferredDescribed standard inner tube and
Regulation diameter of inner pipe is preferredDescribed outside diameter is preferred
A kind of heavy caliber jumping chisel journey core-drilling method, uses above-mentioned core drill to complete Science Drilling and cores process, should
Method comprises the following steps:
A, ground assemble: assemble outer pipe assembly, single action mechanism and inner tube assembly, outside pipe assembly assembling respectively on earth's surface
Time, outer tube assembly is divided into some joints, installs outer tube in the upper end often saving outer tube assembly and carries silk, and one saves under outer tube assembly wherein
End installs drill bit, and when inner tube assembly assembles, inner tube assembly saves inner tube with wherein one after being divided into some joints, single action mechanism to assemble
Assembly assembles, and installs joint in the upper end of single action mechanism and carry silk, and the upper end of remaining inner tube assembly is respectively mounted inner tube and carries silk；
B, well head assemble: carry silk by outer tube and joint outer tube assembly each in outer pipe assembly is lifted into well head successively, and by rule
Fixed order is fixed at well head after being completed, and carries silk by inner tube, top connection carries silk and inner tube assembly and single action mechanism are hung
Install to well head, and fit together by technological requirement, get at the bottom of hole down；
C, core-drilling: time bottom core drill access hole, turn on pump, at the bottom of huge discharge flushing hole, slowly transfer drilling tool to hole
The end, little the pressure of the drill is normal core-drilling after creeping into certain distance；
D, make up a joint: when kelly bar side enters to have beaten, need to add when making up a joint, be first shut off slush pump, slowly on extract the heart
Drilling tool cuts off rock core, and rock core is added by the step of technological requirement after cutting off and makes up a joint；
E, continuing core-drilling: complete to add and make up a joint after operation, open slush pump, slow reaming on earth, continues column drill
Enter；
F, cut the heart and pull out of hole: when full packages or time drilling depth does not needs to pull out of hole, first close slush pump, slowly on carry drilling tool and cut off rock
The heart, the most normally pulls out of hole；
G, well head get rid of drilling tool: inner tube assembly unloading at inner tube box cupling screw thread opened, inner tube assembly is divided into some joints, use
Inner tube carries silk and is lifted into ground respectively；
H, ground go out the heart: utilize hydraulic jack and extension bar to assist out the heart, by the expanding-contracting action of hydraulic cylinder piston rod
Rock core in standard inner tube or regulation inner tube is released.
Above-mentioned heavy caliber jumping chisel journey core-drilling method, when described core drill rock core saturation is more than 30m, needs repeatedly
Add when making up a joint, repeat step d and step e, complete repeatedly to make up a joint and core-drilling operation.
Above-mentioned heavy caliber jumping chisel journey core-drilling method, in step c, when getting into away from 3-5m at the bottom of hole under core drill
Time, turn on pump, at the bottom of huge discharge flushing hole 10-20 minute, slowly transfer drilling tool at the bottom of hole, little the pressure of the drill normally takes after creeping into 0.5m-1m
The heart creeps into.
Heavy caliber jumping chisel journey core drill of the present invention, is from top to bottom sequentially connected in series one group outside in pipe assembly
Outer tube assembly, and in inner tube assembly, from top to bottom it is sequentially connected in series one group of inner tube assembly, total with inner tube by outer pipe assembly
The cooperation become, the rock core considerably increasing core drill accommodates length, improves footage per round trip, decrease the number of times that makes a trip, with
Time, in each group of outer tube assembly, outer tube and reamer are applied in combination, make core drill adapt to more heavy caliber well, expand
The range of application of core drill；Heavy caliber jumping chisel journey core-drilling method of the present invention, is carrying out outer pipe assembly and interior
During the ground-mounted of pipe assembly, outer tube assembly and inner tube assembly are divided into some joints, during well head assembling operation, can directly exist
The core drill of four or more multi packs it is assembled on the basis of three multi pack drilling tools.In a word, heavy caliber of the present invention
Jumping chisel journey core drill and core-drilling method solve the drilling equipment zero that " path core, the reaming of big footpath " finishing drilling pattern exists
The problems such as number of components is many, complex operation step, long in time limit, engineering cost is high and drilling accident risk is big, reach improvement science
Probing economy and the purpose of safety.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of heavy caliber jumping chisel journey core drill of the present invention；
Tu2Shi single action mechanism cross-sectional view；
Fig. 3 is outer pipe assembly cross-sectional view；
Fig. 4 is inner tube assembly cross-sectional view；
Fig. 5 is schematic enlarged-scale view at I in Fig. 4；
Fig. 6 is outer pipe assembly ground assembling mode schematic diagram；
Fig. 7 is inner tube assembly ground assembling mode schematic diagram；
Fig. 8 is that ground goes out heart process schematic.
In figure, each list of reference numerals is:
1, single action mechanism, 1-1, top connection, 1-2, bearing, 1-3, bearing bore, 1-4, mandrel, 1-5, steel ball, 1-6, locking
Nut, 1-7, inner pipe joint；2, outer pipe assembly, 2-1, outer tube, 2-2, reamer, 2-3, drill bit；3, inner tube assembly, 3-1, standard
Inner tube, 3-2, inner tube box cupling, 3-3, regulation inner tube, 3-4, upper clip spring seat, 3-5, upper jump ring, 3-6, lower circlip seat, 3-7, lower card
Spring；4, outer tube carries silk, 5, top connection carry silk, 6, inner tube carry silk, 7, rock core, 8, extension bar, 9, hydraulic jack.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Referring to Fig. 1, Fig. 2, heavy caliber jumping chisel journey core drill of the present invention is by single action mechanism 1, outer pipe assembly 2 and inner tube
Assembly 3 forms.Described single action mechanism includes top connection 1-1, bearing 1-2, bearing bore 1-3, mandrel 1-4, steel ball 1-5, locking screw
Female 1-6, inner pipe joint 1-7, described top connection 1-1 lower end is connected with bearing bore 1-3 threaded upper ends, described bearing bore 1-3 lower end
Threadeding with outer pipe assembly, described mandrel 1-4 is cavity structure, and mandrel 1-4 upper end is assemblied in bearing bore 1-by bearing 1-2
In 3, threaded with inner pipe joint 1-7 in mandrel 1-4 lower end, and is locked by locking nut 1-6, said inner tube joint 1-
7 assemble with inner tube assembly 3, and this core drill forms outer pipe assembly relative to mandrel and the list of connection member thereof by bearing 1-2
Dynamic property, described steel ball 1-5 is placed in mandrel cavity, forms one-way valve structures, to prevent flushing core 7.
Referring to Fig. 1, Fig. 3, in heavy caliber jumping chisel journey core drill of the present invention, described outer pipe assembly 2 is provided with one group
The outer tube assembly being from top to bottom sequentially connected in series, each of which group outer tube assembly all includes outer tube 2-1 and reamer 2-2, institute
State outer tube 2-1 to threaded with reamer 2-2, be positioned at outer tube assembly middle external tube topmost and top connection 1-1 in single action mechanism 1
Assembling, the reamer being positioned in the outer tube assembly of bottom assembles with drill bit 2-3.
Referring to Fig. 1, Fig. 4, Fig. 5, in heavy caliber jumping chisel journey core drill of the present invention, said inner tube assembly 3 is provided with
The inner tube assembly that one group is from top to bottom sequentially connected in series, each of which group inner tube assembly all includes standard inner tube 3-1 and inner tube
Box cupling 3-2, the standard inner tube being positioned in the inner tube assembly of the top and inner pipe joint 1-7 assembling in single action mechanism 1, be positioned at bottom
Inner tube box cupling lower end in inner tube assembly connects regulation inner tube 3-3, sets gradually clip spring seat in described regulation inner tube 3-3 lower end
3-4 and lower circlip seat 3-6, installs jump ring 3-5 in described upper clip spring seat 3-4, install lower circlip 3-in described lower circlip seat 3-6
7。
Referring to Fig. 1 to Fig. 5, heavy caliber jumping chisel journey core drill of the present invention, in its drill bit 2-3, outer tube 2-1, standard
Pipe 3-1 and regulation inner tube 3-3 can have multiple product line, each series to recommend specification as shown in table 1, each of which size
Numerical value allows upper lower deviation 5mm because of the size that processing and design factor standard provide.
Table 1 jumping chisel journey drilling tool series specification size
Referring to Fig. 1 to Fig. 8, the core-drilling method utilizing heavy caliber jumping chisel journey core drill of the present invention to complete includes
Following steps:
A, ground assemble: assemble outer pipe assembly 2, single action mechanism 1 and inner tube assembly 3 respectively on earth's surface, pipe assembly 2 fills outside
Timing, outer tube assembly is divided into some joints, installs outer tube in the upper end often saving outer tube assembly and puies forward silk 4, and a joint outer tube group wherein
Drill bit 2-3 is installed in part lower end, and when inner tube assembly 3 assembles, inner tube assembly is divided into some joints, single action mechanism 1 to assemble afterwards and it
In a joint inner tube assembly assembling, and install joint in the upper end of single action mechanism 1 and carry silk 5, the upper end of remaining inner tube assembly is all pacified
Dress inner tube carries silk 6；
B, well head assemble: carry the outer pipe assembly 2 of silk 4 by outer tube and respectively save outer tube assembly and be lifted into well head successively, and press Fig. 3
Shown order is fixed at well head after being completed, and carries silk 6 by inner tube, top connection puies forward 5 inner tube assemblies 3 of silk and single acting engine
Structure 1 is lifted into well head, and assembling structure fits together with outer pipe assembly 2 as shown in Figure 1, gets at the bottom of hole down；
C, core-drilling: when getting into away from 3-5m at the bottom of hole under core drill, turn on pump, 10-20 at the bottom of huge discharge flushing hole divides
Clock, slowly transfers drilling tool at the bottom of hole, and little the pressure of the drill is normal core-drilling after creeping into 0.5m-1m；
D, make up a joint: when kelly bar side enters to have beaten, need to add when making up a joint, be first shut off slush pump, slowly on extract the heart
Drilling tool cuts off rock core 7, and rock core 7 is added by the step of technological requirement after cutting off and makes up a joint；
E, continuing core-drilling: complete to add and make up a joint after operation, open slush pump, slow reaming on earth, continues column drill
Enter；
F, cut the heart and pull out of hole: when described core drill rock core saturation is more than 30m, need repeatedly to add when making up a joint, repeat step
Rapid d and step e, complete repeatedly to make up a joint and core-drilling operation, when full packages or time drilling depth does not needs to pull out of hole, first closes mud
Pump, slowly on carry drilling tool core breaking 7, the most normally pull out of hole；
G, well head get rid of drilling tool: inner tube assembly 3 unloading at inner tube box cupling 3-2 screw thread opened, inner tube assembly 3 is divided into some
Joint, carries silk 6 by inner tube and is lifted into ground respectively；
H, ground go out the heart: utilize hydraulic jack 9 and extension bar 8 to assist out the heart, and flexible by hydraulic cylinder piston rod moves
Make to release the rock core in standard inner tube 3-1 or regulation inner tube 3-3.
Claims (9)
1. a heavy caliber jumping chisel journey core drill, is made up of single action mechanism (1), outer pipe assembly (2) and inner tube assembly (3)；Its
Feature is, described outer pipe assembly (2) is provided with one group of outer tube assembly being from top to bottom sequentially connected in series, each of which group outer tube group
Part all includes outer tube (2-1) and reamer (2-2), and described outer tube (2-1) is threadeded with reamer (2-2), is positioned at topmost
Outer tube assembly middle external tube and single action mechanism (1) assemble, the reamer being positioned in the outer tube assembly of bottom fills with drill bit (2-3)
Join；Said inner tube assembly (3) is provided with one group of inner tube assembly being from top to bottom sequentially connected in series, and each of which group inner tube assembly is equal
Including standard inner tube (3-1) and inner tube box cupling (3-2), it is positioned at the standard inner tube in the inner tube assembly of the top and single action mechanism (1)
Assembling, the inner tube box cupling lower end being positioned in the inner tube assembly of bottom connects regulation inner tube (3-3), described regulation inner tube (3-3)
Lower end sets gradually clip spring seat (3-4) and lower circlip seat (3-6), installs jump ring (3-5) in described upper clip spring seat (3-4),
Described lower circlip seat (3-6) is installed lower circlip (3-7).
Heavy caliber jumping chisel journey core drill the most according to claim 1, is characterized in that, described outer tube (2-1) and reamer
(2-2) length sum is equal with the length sum of standard inner tube (3-1) and inner tube box cupling (3-2), and its positive negative error is not more than
5mm。
Heavy caliber jumping chisel journey core drill the most according to claim 1 and 2, is characterized in that, the diameter of described outer tubeDescribed standard inner tube and regulation diameter of inner pipeDescribed outside diameter
Heavy caliber jumping chisel journey core drill the most according to claim 1 and 2, is characterized in that, above-mentioned heavy caliber jumping chisel journey takes
Heart drilling tool, the diameter of described outer tubeDescribed standard inner tube and regulation diameter of inner pipeInstitute
State outside diameter
Heavy caliber jumping chisel journey core drill the most according to claim 1 and 2, is characterized in that, the diameter of described outer tubeDescribed standard inner tube and regulation diameter of inner pipeDescribed outside diameter
Heavy caliber jumping chisel journey core drill the most according to claim 1 and 2, is characterized in that, the diameter of described outer tubeDescribed standard inner tube and regulation diameter of inner pipeDescribed outside diameter
7. a heavy caliber jumping chisel journey core-drilling method, uses the heavy caliber jumping chisel as according to any one of claim 1 to 6
Journey core drill completes Science Drilling and cores process, and the method comprises the following steps:
A, ground assemble: assemble outer pipe assembly (2), single action mechanism (1) and inner tube assembly (3), pipe assembly outside respectively on earth's surface
(2) during assembling, outer tube assembly is divided into some joints, installs outer tube in the upper end often saving outer tube assembly and carries silk (4), and a joint wherein
Drill bit (2-3) is installed in outer tube assembly lower end, and when inner tube assembly (3) assembles, inner tube assembly is divided into some joints, single action mechanism (1)
With wherein one joint inner tube assembly assembling after assembling, and install joint in the upper end of single action mechanism (1) and carry silk (5), in remaining
The upper end of pipe assembly is respectively mounted inner tube and carries silk (6)；
B, well head assemble: carry silk (4) by outer tube and each joint outer tube assembly of outer pipe assembly (2) is lifted into well head successively, and press
The order of regulation is fixed at well head after being completed, carry silk (6) by inner tube, top connection carry silk (5) inner tube assembly (3) and
Single action mechanism (1) is lifted into well head, and fits together by technological requirement, gets at the bottom of hole down；
C, core-drilling: time bottom core drill access hole, turn on pump, at the bottom of huge discharge flushing hole, slowly transfer drilling tool at the bottom of hole, little
The pressure of the drill is normal core-drilling after creeping into certain distance；
D, make up a joint: when kelly bar side enters to have beaten, need to add when making up a joint, be first shut off slush pump, slowly on carry core drill
Cutting off rock core (7), rock core (7) is added by the step of technological requirement after cutting off and makes up a joint；
E, continuing core-drilling: complete to add and make up a joint after operation, open slush pump, slow reaming on earth, continues core-drilling；
F, cut the heart and pull out of hole: when full packages or time drilling depth does not needs to pull out of hole, first close slush pump, slowly on carry drilling tool core breaking (7),
The most normally pull out of hole；
G, well head get rid of drilling tool: open, inner tube assembly (3) unloading at inner tube box cupling (3-2) screw thread inner tube assembly (3) if being divided into
Dry joint, carries silk (6) by inner tube and is lifted into ground respectively；
H, ground go out the heart: utilize hydraulic jack (9) and extension bar (8) to assist out the heart, and flexible by hydraulic cylinder piston rod moves
Make to release the rock core in standard inner tube (3-1) or regulation inner tube (3-3).
Heavy caliber jumping chisel journey core-drilling method the most according to claim 7, is characterized in that, when described core drill rock core
Saturation, more than 30m, needs repeatedly to add when making up a joint, and repeats step d and step e, completes repeatedly to make up a joint and core-drilling is made
Industry.
Heavy caliber jumping chisel journey core-drilling method the most according to claim 7, is characterized in that, in step c, work as column drill
When getting into away from 3-5m at the bottom of hole under tool, turn on pump, at the bottom of huge discharge flushing hole 10-20 minute, slowly transfer drilling tool at the bottom of hole, little the pressure of the drill
Normal core-drilling after creeping into 0.5m-1m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610578377.4A CN106194087A (en) | 2016-07-21 | 2016-07-21 | A kind of heavy caliber jumping chisel journey core drill and core-drilling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610578377.4A CN106194087A (en) | 2016-07-21 | 2016-07-21 | A kind of heavy caliber jumping chisel journey core drill and core-drilling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106194087A true CN106194087A (en) | 2016-12-07 |
Family
ID=57492227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610578377.4A Pending CN106194087A (en) | 2016-07-21 | 2016-07-21 | A kind of heavy caliber jumping chisel journey core drill and core-drilling method |
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| CN (1) | CN106194087A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106677701A (en) * | 2017-01-23 | 2017-05-17 | 珠海市英格尔特种钻探设备有限公司 | Engineering geological drilling construction method based on thin-walled drilling tool |
| CN106869840A (en) * | 2017-02-21 | 2017-06-20 | 中国地质科学院勘探技术研究所 | It is a kind of to prevent interior assembly with dynamic core drill single acting device |
| CN108386148A (en) * | 2018-01-31 | 2018-08-10 | 长江岩土工程总公司（武汉） | Using the drilling coring method of mud clothing package core in sand |
| CN112112588A (en) * | 2020-09-08 | 2020-12-22 | 中国地质科学院勘探技术研究所 | Press-in type rope coring drilling tool and coring process method thereof |
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| CN204476329U (en) * | 2015-02-02 | 2015-07-15 | 陕西铁道工程勘察有限公司 | A kind of basement rock triple pipe core bit |
| CN105672923A (en) * | 2015-12-16 | 2016-06-15 | 中国地质科学院勘探技术研究所 | Single-action assembly capable of preventing inner tube assembly from falling off |
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| US20030106717A1 (en) * | 2001-12-06 | 2003-06-12 | Douglas Kinsella | Coring system and method |
| CN101235710A (en) * | 2008-02-28 | 2008-08-06 | 中国科学院武汉岩土力学研究所 | Impact type double tube double-motion coring device and its method |
| CN102797427A (en) * | 2012-08-27 | 2012-11-28 | 中国地质科学院勘探技术研究所 | Rock core ejection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106677701A (en) * | 2017-01-23 | 2017-05-17 | 珠海市英格尔特种钻探设备有限公司 | Engineering geological drilling construction method based on thin-walled drilling tool |
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| CN106869840A (en) * | 2017-02-21 | 2017-06-20 | 中国地质科学院勘探技术研究所 | It is a kind of to prevent interior assembly with dynamic core drill single acting device |
| CN108386148A (en) * | 2018-01-31 | 2018-08-10 | 长江岩土工程总公司（武汉） | Using the drilling coring method of mud clothing package core in sand |
| CN108386148B (en) * | 2018-01-31 | 2020-01-17 | 长江岩土工程总公司（武汉） | Drilling coring method for wrapping rock core in sandy soil by using mud coating |
| CN112112588A (en) * | 2020-09-08 | 2020-12-22 | 中国地质科学院勘探技术研究所 | Press-in type rope coring drilling tool and coring process method thereof |
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