CN109372457A - Coring and be not in the mood for drilling do not mention brill conversion drilling tool - Google Patents

Coring and be not in the mood for drilling do not mention brill conversion drilling tool Download PDF

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Publication number
CN109372457A
CN109372457A CN201811524647.9A CN201811524647A CN109372457A CN 109372457 A CN109372457 A CN 109372457A CN 201811524647 A CN201811524647 A CN 201811524647A CN 109372457 A CN109372457 A CN 109372457A
Authority
CN
China
Prior art keywords
tube
drill bit
pipe
drilling
rock core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811524647.9A
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Chinese (zh)
Other versions
CN109372457B (en
Inventor
朱恒银
王强
王久全
田波
张绪勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
313 Geological Team Of Anhui Geological And Mineral Exploration Bureau
Original Assignee
313 Geological Team Of Anhui Geological And Mineral Exploration Bureau
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Application filed by 313 Geological Team Of Anhui Geological And Mineral Exploration Bureau filed Critical 313 Geological Team Of Anhui Geological And Mineral Exploration Bureau
Priority to CN201811524647.9A priority Critical patent/CN109372457B/en
Publication of CN109372457A publication Critical patent/CN109372457A/en
Application granted granted Critical
Publication of CN109372457B publication Critical patent/CN109372457B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
    • E21B25/02Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
    • E21B25/04Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe the core receiver having a core forming cutting edge or element, e.g. punch type core barrels
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B31/00Fishing for or freeing objects in boreholes or wells
    • E21B31/12Grappling tools, e.g. tongs or grabs
    • E21B31/20Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling

Abstract

The present invention, which discloses a kind of coring and is not in the mood for drilling, does not mention brill conversion drilling tool, including outer pipe assembly and inner tube assembly, inner tube assembly includes that inner tube and rock core accommodate pipe, rock core accommodates pipe and is set in inner tube, rock core accommodates pipe and inner tube and is able to maintain relative rotation by single acting device, inner tube is connected with interior drill bit, inner tube is connected by torsion pass pipe nipple and torsion pass ring with outer tube transmission, outer drill bit is connected with outer tube, when core-drilling, rock core enters rock core and accommodates in pipe, pass through circlip card coring, outer tube, outer drill bit, inner tube and interior drill bit rotate synchronously, rock core accommodates pipe and circlip keeps opposing stationary, protect rock core injury-free;When job state needs replacing not to be in the mood for drilling, it is connected by the way that spearhead will be fished out with fisher, inner tube assembly is salvaged earth's surface by fisher, drill bit in replacing, inner tube assembly is put into outer pipe assembly again, it is not necessary that drilling tool entire infrastructure is proposed earth's surface, the converting process of drill bit can be completed, improve probing working efficiency.

Description

Coring and be not in the mood for drilling do not mention brill conversion drilling tool
Technical field
The present invention relates to drilling equipment and its periphery auxiliary facility technical fields, more particularly to a kind of coring and are not in the mood for boring Conversion drilling tool is bored into not mentioning.
Background technique
The general name of whole probing tubing column and its connector when drilling operation in drilling, drilling tool is by kelly, brill Bar, basket and the reamer of bottom end and drill bit composition, when necessary also in basket top adjunction drill collar.The function master of drilling tool If transmitting drill pressure and rotary torque to drill bit during drilling rock formations, and drilling fluid is conveyed to bottom hole, collected Rock core.
Underground rock core or non-core drilling are taken in the probing of traditional oil drilling, geological drilling and other field, Two methods have to mention brill when converting changes drilling tool, drill bit.Deep hole (well) puts a drilling rod, replacement drilling tool, to expend a large amount of Time, influence drill working efficiency, labor intensity of workers is big, cost increase;Although geological core drilling realizes does not mention brill Wire line core drilling process, but when needing not coring total cost management, it also obtains and drilling rod in hole is all proposed earth's surface ability Convert not core drill.In practical probing, such as petroleum, natural gas, underground heat, coalfield probing, typically interruption coring or brill Part coring when into target zone, remaining hole section is no rock core total cost management, until so far, not yet solution mentions brill never to convert The technical method of the drilling tool of bottom hole coring and non-core drilling.
Therefore, how to change in the prior art, drilling process transfer must be by drilling tool when changing core drill and not being in the mood for drilling tool The whole status for proposing earth's surface, is those skilled in the art's urgent problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of coring and be not in the mood for drilling do not mention brill conversion drilling tool, to solve the above-mentioned prior art There are the problem of, it is not necessary that drilling tool overall structure proposition earth's surface can be completed core drill and the conversion for not being in the mood for drilling tool, improve brill Visit efficiency.
To achieve the above object, the present invention provides following schemes: the present invention provides a kind of coring and is not in the mood for drilling and do not mention Bore conversion drilling tool, comprising:
Outer pipe assembly, the outer pipe assembly include drill stem conversion connector, bullet card room, outer tube, reamer, torsion pass ring and outer brill Head, bullet card room connects the drill stem conversion connector and the outer tube, the outer tube are also connected with the reamer, the expansion Hole device is set in the outside of the torsion pass ring, and the reamer connects the outer tube and the outer drill bit;
Inner tube assembly, said inner tube assembly include fishing spearhead, play clip arrangement, is single acting device, inner tube, torsion pass pipe nipple, interior Drill bit, rock core accommodates pipe and circlip, the fishing spearhead to be connected with fisher, and the bullet clip arrangement being capable of bullet described in clamping The inner wall of card room, the bullet clip arrangement connect the fishing spearhead and the single acting device, are arranged hanging ring outside the fishing spearhead, Seat ring is arranged in the inside of the outer tube, and the seat ring is sleeved on the outside of the hanging ring, and the single acting device is located in described Pipe and the rock core accommodate between pipe, and the single acting device can be realized said inner tube and the rock core accommodates pipe and relatively rotates, Said inner tube is connected by the torsion pass pipe nipple with the interior drill bit, and the rock core accommodates the inside that pipe is located at said inner tube, institute It states circlip and accommodates to manage with the rock core and be connected, the torsion pass pipe nipple and torsion pass ring engaged transmission, the torsion pass pipe nipple and institute It states interior drill bit to be connected, the circlip is set to the inside of the interior drill bit, and the circlip accommodates pipe with the rock core and is connected;
The outer pipe assembly is set in the outside of said inner tube assembly, and the interior drill bit stretches out the outer drill bit, and described Outer pipe assembly and said inner tube assembly are coaxially disposed.
Preferably, said inner tube assembly further includes clip spring seat, and the circlip accommodates pipe phase by clip spring seat and the rock core Even, the clip spring seat and the rock core, which accommodate, is arranged circlip retaining ring between pipe.
Preferably, the bullet clip arrangement includes salvaging body, elastic component and snap-gauge, the elastic component and the salvaging body phase Even, the snap-gauge and the salvaging body are hinged, and the snap-gauge can open under pressure and the inner wall with bullet card room It offsets, the snap-gauge can collapse under the pulling force effect of the elastic component.
Preferably, the elastic component is spring, and the bullet clip arrangement further includes spring pocket, and the elastic component is set to institute It states in spring pocket, the spring pocket connects the fishing spearhead and the salvaging body.
Preferably, hinged shaft is set on the fishing spearhead, long hole is set on the snap-gauge, and the hinged shaft is articulated with the long hole It is interior, and the hinged shaft can be moved back and forth along the long axis direction of the long hole.
Preferably, the torsion pass pipe nipple is detachably connected with the interior drill bit.
Preferably, the torsion pass pipe nipple is connect with the interior drill bit thread, the spiral shell of the torsion pass pipe nipple and the interior drill bit Line fastening direction is identical as the rotation direction of the interior drill bit.
Preferably, the big 3-4mm of outer diameter of the internal diameter of the outer drill bit interior drill bit.
Preferably, it is 5-10cm that the interior drill bit, which stretches out the length of the outer drill bit,.
The present invention achieves following technical effect compared with the existing technology: coring of the invention and not being in the mood for drilling and do not mention brill turning Drilling tool, including outer pipe assembly and inner tube assembly are changed, inner tube assembly includes inner tube and rock core accommodates pipe, and rock core receiving pipe is set to interior Guan Zhong, rock core accommodate pipe and inner tube and are able to maintain relative rotation by single acting device, and inner tube is connected with interior drill bit, and inner tube passes through biography It turns round pipe nipple and torsion pass ring to be connected with outer tube transmission, outer drill bit is connected with outer tube, and when core-drilling, rock core enters rock core receiving and manages In, by circlip card coring, outer tube, outer drill bit, inner tube and interior drill bit are rotated synchronously, and rock core accommodates pipe and circlip keeps opposite Static, protection rock core is injury-free;When job state needs replacing not to be in the mood for drilling, by the way that spearhead and fisher phase will be fished out Even, inner tube assembly is salvaged earth's surface by fisher, interior drill bit is replaced, then inner tube assembly is put into outer pipe assembly, without that will bore Have entire infrastructure and propose earth's surface, the converting process of drill bit can be completed, improves probing working efficiency.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is coring of the invention and is not in the mood for creeping into the cutting structural schematic diagram for not mentioning and boring conversion drilling tool;
Fig. 2 is coring of the invention and is not in the mood for creeping into the cutting structural schematic diagram for not mentioning the inner tube assembly for boring conversion drilling tool;
Fig. 3 is the enlarged structure schematic diagram in Fig. 1 at A;
Fig. 4 is the enlarged structure schematic diagram in Fig. 1 at B;
Fig. 5 is the enlarged structure schematic diagram in Fig. 1 at C;
Wherein, 1 is outer pipe assembly, and 2 be inner tube assembly, and 3 be bullet card room, and 4 be outer tube, and 5 be reamer, and 6 be torsion pass ring, 7 It is fishing spearhead for outer drill bit, 8,9 is play clip arrangement, and 10 be single acting device, and 11 be inner tube, and 12 be torsion pass pipe nipple, and 13 be interior brill Head, 14 accommodate pipe for rock core, and 15 be circlip, and 16 be hanging ring, and 17 be seat ring, and 18 be clip spring seat.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of coring and be not in the mood for drilling do not mention brill conversion drilling tool, to solve the above-mentioned prior art There are the problem of, it is not necessary that drilling tool overall structure proposition earth's surface can be completed core drill and the conversion for not being in the mood for drilling tool, improve brill Visit efficiency.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real Applying mode, the present invention is described in further detail.
Please refer to Fig. 1-5, wherein Fig. 1 is coring of the invention and is not in the mood for creeping into the cutting structure for not proposing and boring conversion drilling tool Schematic diagram, Fig. 2 is coring of the invention and is not in the mood for the cutting structural schematic diagram that drilling does not mention the inner tube assembly of brill conversion drilling tool, is schemed 3 be the enlarged structure schematic diagram at A in Fig. 1, and Fig. 4 is the enlarged structure schematic diagram in Fig. 1 at B, and Fig. 5 is the amplification in Fig. 1 at C Structural schematic diagram.
The present invention, which provides a kind of coring and is not in the mood for drilling, does not mention brill conversion drilling tool, comprising:
Outer pipe assembly 1, outer pipe assembly 1 include drill stem conversion connector, bullet card room 3, outer tube 4, reamer 5, torsion pass ring 6 and outer Drill bit 7,3 jointed rod crossover sub of bullet card room and outer tube 4, outer tube 4 are also connected with reamer 5, and reamer 5 is set in torsion pass ring 6 outside, reamer 5 connect outer tube 4 and outer drill bit 7;
Inner tube assembly 2, inner tube assembly 2 include fishing spearhead 8, play clip arrangement 9, single acting device 10, inner tube 11, torsion pass pipe nipple 12, interior drill bit 13, rock core accommodate pipe 14 and circlip 15, and fishing spearhead 8 can be connected with fisher, and playing clip arrangement 9 being capable of clamping The inner wall of bullet card room 3 plays the connection of clip arrangement 9 fishing spearhead 8 and single acting device 10, is arranged hanging ring 16, outer tube 4 outside fishing spearhead 8 Inside seat ring 17 is set, seat ring 17 is sleeved on the outside of hanging ring 16, and single acting device 10 is located at inner tube 11 and rock core is accommodated and managed Between 14, single acting device 10, which can be realized inner tube 11 and rock core and accommodate pipe 14, to be relatively rotated, inner tube 11 by torsion pass pipe nipple 12 with Interior drill bit 13 is connected, and rock core accommodates the inside that pipe 14 is located at inner tube 11, and circlip 15 accommodates pipe 14 with rock core and is connected, torsion pass pipe nipple 12 With 6 engaged transmission of torsion pass ring, torsion pass pipe nipple 12 is connected with interior drill bit 13, and circlip 15 is set to the inside of interior drill bit 13, circlip 15 Pipe 14 is accommodated with rock core to be connected;
Outer pipe assembly 1 is set in the outside of inner tube assembly 2, and interior drill bit 13 stretches out outer drill bit 7, and outer pipe assembly 1 and inner tube Assembly 2 is coaxially disposed.
Coring of the invention and it is not in the mood for drilling and does not mention brill conversion drilling tool, including outer pipe assembly 1 and inner tube assembly 2, inner tube is total It include that inner tube 11 and rock core accommodate pipe 14 at 2, rock core accommodates pipe 14 and is set in inner tube 11, and rock core accommodates pipe 14 and inner tube 11 is logical It crosses single acting device 10 and is able to maintain relative rotation, inner tube 11 is connected with interior drill bit 13, and inner tube 11 passes through torsion pass pipe nipple 12 and torsion pass The transmission of ring 6 and outer tube 4 is connected, and outer drill bit 7 is connected with outer tube 4, and when core-drilling, rock core enters in rock core receiving pipe 14, passes through 15 card coring of circlip, outer tube 4, outer drill bit 7, inner tube 11 and interior drill bit 13 rotate synchronously, and rock core accommodates pipe 14 and circlip 15 is protected Hold it is opposing stationary, protection rock core it is injury-free;When job state needs replacing not to be in the mood for drilling, by that will fish out spearhead 8 and beat It fishes out device to be connected, inner tube assembly 2 is salvaged earth's surface by fisher, replaces interior drill bit 13, then inner tube assembly 2 is put into outer pipe assembly 1 In, it is not necessary that drilling tool entire infrastructure is proposed earth's surface, the converting process of drill bit can be completed, improve probing working efficiency.
Wherein, inner tube assembly 2 further includes clip spring seat 18, and circlip 15 accommodates pipe 14 with rock core by clip spring seat 18 and is connected, blocks Spring abutment 18 and rock core, which accommodate, is arranged 15 retaining ring of circlip between pipe 14.Hanging ring 16 and seat ring 17, which match, can make inner tube assembly 2 In clip spring seat 18 and interior drill bit 13 keep certain interval, prevent damage clip spring seat 18, and guarantee the single action of inner tube 11 and logical It is aqueous.
Specifically, playing clip arrangement 9 includes salvaging body, elastic component and snap-gauge, and elastic component is connected with body is salvaged, snap-gauge with beat Fishing body is hinged, and snap-gauge can be opened under pressure and be offseted with the inner wall of bullet card room 3, and snap-gauge can be in the pulling force of elastic component Effect is lower to collapse.In this embodiment, elastic component is spring, and playing clip arrangement 9 further includes spring pocket, elastic component setting In in spring pocket, spring pocket connection fishes out spearhead 8 and salvages body.Hinged shaft is set on fishing spearhead 8, long hole, hinged shaft hinge are set on snap-gauge It is connected in long hole, and hinged shaft can be moved back and forth along the long axis direction of long hole.Fisher is connected with fishing spearhead 8, total to inner tube When mentioning upwards at 2, hinged shaft is moved to the upper end of long hole, and snap-gauge collapses, and inner tube assembly 2 is enable smoothly to propose;When needing to transfer When inner tube assembly 2, snap-gauge opened with certain angle under the pressure effect of spring, when decentralization to bullet card room 3, snap-gauge opening angle Become larger and abutted against with the inner wall of bullet card room 3, prevent inner tube assembly 2 in drilling process on alter;It is let off under inner tube assembly 2 Cheng Zhong, if met with obstruction, drilling tool quality and the inertia moved downward collapse snap-gauge inwardly, pass through inner tube assembly 2.
In addition, torsion pass pipe nipple 12 is detachably connected with interior drill bit 13, it is conveniently replaceable interior drill bit 13, and then save more bit change Time.
In this embodiment, torsion pass pipe nipple 12 is threadedly coupled with interior drill bit 13, torsion pass pipe nipple 12 and interior drill bit 13 Screw threads for fastening direction it is identical as the rotation direction of interior drill bit 13, prevent drill bit from loosening in drilling process.
Further, the big 3-4mm of outer diameter of the internal diameter of outer drill bit 7 drill bit 13 compared in;Interior drill bit 13 stretches out the length of outer drill bit 7 Degree is 5-10cm.
It should be noted that single acting device 10 of the invention realizes inner tube by thrust bearing and other support transferring elements Pipe 14 is accommodated with rock core to relatively rotate, and coring of the invention and is not in the mood for drilling and does not mention brill converting drilling tool to realize normal fortune Turn, the valve etc. of liquid communication is set, because drilling tool of the invention is not related to improving above structure, therefore, is repeated no more.
Coring of the invention and it is not in the mood for drilling and does not mention brill conversion drilling tool, rock core accommodates pipe 14 and is set in inner tube 11, rock core It accommodates 14 top of pipe to connect with bullet clip arrangement 9, single acting device 10, rock core accommodates 14 bottom connection circlip 15 of pipe, core-drilling When, rock core accommodates pipe 14 and does not rotate to play the role of protecting rock core;Inner tube assembly 2 and outer pipe assembly 1 pass through torsion pass pipe nipple 12 Cooperate with torsion pass ring 6, realize synchronous revolving, the limit of 11 top of inner tube is realized by playing clip arrangement 9.Core drilling is not in the mood for boring Into when being converted, inner tube assembly 2 is salvaged to earth's surface using rope salvaging device is transferred in drilling rod, replaces interior drill bit 13, then will Inner tube assembly 2 is put into outer pipe assembly 1 by drilling rod inner cavity, does not need to mention drilling rod in hole, so that it may be realized coring or is not in the mood for boring Into the purpose of conversion, conversion time is saved, improves probing working efficiency.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments Illustrate to be merely used to help understand method and its core concept of the invention;At the same time, for those skilled in the art, according to According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification It should not be construed as limiting the invention.

Claims (9)

1. a kind of coring and be not in the mood for drilling do not mention brill conversion drilling tool characterized by comprising
Outer pipe assembly, the outer pipe assembly include drill stem conversion connector, bullet card room, outer tube, reamer, torsion pass ring and outer drill bit, Bullet card room connects the drill stem conversion connector and the outer tube, the outer tube are also connected with the reamer, the reaming Device is set in the outside of the torsion pass ring, and the reamer connects the outer tube and the outer drill bit;
Inner tube assembly, said inner tube assembly include fishing spearhead, play clip arrangement, single acting device, inner tube, torsion pass pipe nipple, interior drill bit, Rock core, which accommodates pipe and circlip, the fishing spearhead, to be connected with fisher, and the bullet clip arrangement being capable of bullet card room described in clamping Inner wall, the bullet clip arrangement connects the fishing spearhead and the single acting device, and the fishing spearhead is arranged hanging ring outside, described The inside of outer tube is arranged seat ring, and the seat ring is sleeved on the outside of the hanging ring, the single acting device be located at said inner tube with The rock core accommodates between pipe, and the single acting device can be realized said inner tube and the rock core accommodates pipe and relatively rotates, described Inner tube is connected by the torsion pass pipe nipple with the interior drill bit, and the rock core accommodates the inside that pipe is located at said inner tube, the card Spring and the rock core accommodate pipe and are connected, the torsion pass pipe nipple and the torsion pass ring engaged transmission, the torsion pass pipe nipple with it is described interior Drill bit is connected, and the circlip is set to the inside of the interior drill bit, and the circlip accommodates pipe with the rock core and is connected;
The outer pipe assembly is set in the outside of said inner tube assembly, and the interior drill bit stretches out the outer drill bit, and the outer tube Assembly and said inner tube assembly are coaxially disposed.
2. coring according to claim 1 and be not in the mood for drilling do not mention brill conversion drilling tool, it is characterised in that: said inner tube assembly It further include clip spring seat, the circlip accommodates pipe with the rock core by clip spring seat and is connected, and the clip spring seat and the rock core accommodate Circlip retaining ring is set between pipe.
3. coring according to claim 1 and not being in the mood for drilling and not mentioning brill conversion drilling tool, it is characterised in that: the bullets snap-gauge fills It sets and is connected including salvaging body, elastic component and snap-gauge, the elastic component with the salvaging body, the snap-gauge and the salvaging body are cut with scissors It connects, the snap-gauge can be opened under pressure and be offseted with the inner wall of bullet card room, and the snap-gauge can be in the bullet It is collapsed under the pulling force effect of property part.
4. coring according to claim 3 and not being in the mood for drilling and not mentioning brill conversion drilling tool, it is characterised in that: the elastic component is Spring, the bullet clip arrangement further includes spring pocket, and the elastic component is set in the spring pocket, and the spring pocket connects institute State fishing spearhead and the salvaging body.
5. coring according to claim 4 and be not in the mood for drilling do not mention brill conversion drilling tool, it is characterised in that: on the fishing spearhead Hinged shaft is set, long hole is set on the snap-gauge, the hinged shaft is articulated in the long hole, and the hinged shaft can be along the length The long axis direction in hole moves back and forth.
6. coring according to claim 1 and be not in the mood for drilling do not mention brill conversion drilling tool, it is characterised in that: the torsion pass pipe nipple It is detachably connected with the interior drill bit.
7. coring according to claim 6 and be not in the mood for drilling do not mention brill conversion drilling tool, it is characterised in that: the torsion pass pipe nipple It is connect with the interior drill bit thread, the rotation in the screw threads for fastening direction and the interior drill bit of the torsion pass pipe nipple and the interior drill bit Direction is identical.
8. coring according to claim 1 and be not in the mood for drilling do not mention brill conversion drilling tool, it is characterised in that: the outer drill bit The big 3-4mm of outer diameter of the internal diameter interior drill bit.
9. coring according to claim 1 and be not in the mood for drilling do not mention brill conversion drilling tool, it is characterised in that: the interior drill bit is stretched The length of the outer drill bit is 5-10cm out.
CN201811524647.9A 2018-12-13 2018-12-13 Core-taking and coreless drilling non-lifting conversion drilling tool Active CN109372457B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811524647.9A CN109372457B (en) 2018-12-13 2018-12-13 Core-taking and coreless drilling non-lifting conversion drilling tool

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Application Number Priority Date Filing Date Title
CN201811524647.9A CN109372457B (en) 2018-12-13 2018-12-13 Core-taking and coreless drilling non-lifting conversion drilling tool

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CN109372457A true CN109372457A (en) 2019-02-22
CN109372457B CN109372457B (en) 2020-03-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110500057A (en) * 2019-07-22 2019-11-26 自然资源部第一海洋研究所 A kind of two-tube rock core core drill of band inside spin

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103352671A (en) * 2013-07-24 2013-10-16 李国民 Rope core taking drill
CN107288565A (en) * 2017-07-28 2017-10-24 中国地质科学院勘探技术研究所 A kind of sea bed gas hydrate rock core coring drilling with keep up pressure drilling tool
CN207194856U (en) * 2017-07-28 2018-04-06 中国地质科学院勘探技术研究所 A kind of sea bed gas hydrate rock core coring drilling with keep up pressure drilling tool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103352671A (en) * 2013-07-24 2013-10-16 李国民 Rope core taking drill
CN107288565A (en) * 2017-07-28 2017-10-24 中国地质科学院勘探技术研究所 A kind of sea bed gas hydrate rock core coring drilling with keep up pressure drilling tool
CN207194856U (en) * 2017-07-28 2018-04-06 中国地质科学院勘探技术研究所 A kind of sea bed gas hydrate rock core coring drilling with keep up pressure drilling tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110500057A (en) * 2019-07-22 2019-11-26 自然资源部第一海洋研究所 A kind of two-tube rock core core drill of band inside spin

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