CN106988697A - A kind of ocean gas hydrate freezes fidelity core drill - Google Patents
A kind of ocean gas hydrate freezes fidelity core drill Download PDFInfo
- Publication number
- CN106988697A CN106988697A CN201710234774.4A CN201710234774A CN106988697A CN 106988697 A CN106988697 A CN 106988697A CN 201710234774 A CN201710234774 A CN 201710234774A CN 106988697 A CN106988697 A CN 106988697A
- Authority
- CN
- China
- Prior art keywords
- assembly
- inner tube
- outer pipe
- chamber
- freezing
- 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
Links
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000011084 recovery Methods 0.000 claims abstract description 37
- 239000011435 rock Substances 0.000 claims abstract description 35
- 238000007710 freezing Methods 0.000 claims abstract description 20
- 230000008014 freezing Effects 0.000 claims abstract description 20
- 241001449342 Chlorocrambe hastata Species 0.000 claims abstract description 9
- 238000011534 incubation Methods 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 235000009967 Erodium cicutarium Nutrition 0.000 claims description 5
- 240000003759 Erodium cicutarium Species 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 10
- 150000004677 hydrates Chemical class 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 235000011089 carbon dioxide Nutrition 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B25/08—Coating, freezing, consolidating cores; Recovering uncontaminated cores or cores at formation pressure
-
- 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
- E21B25/18—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being specially adapted for operation under water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Earth Drilling (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
A kind of ocean gas hydrate freezes fidelity core drill.Including outer pipe assembly, inner tube assembly and salvaging freezing assembly, inner tube assembly is arranged in outer pipe assembly, salvage the body of freezing assembly inwardly has incubation cavity, stores up cold chamber and rock core chamber successively, rock core intracavitary has a lifting arm, lifting arm lower end is provided with recovery hook, when salvaging freezing assembly enters outer pipe assembly upper end, recovery hook, which is caught, to be dragged for spearhead and is lifted inner tube assembly into core chamber by moving up for lifting arm.Present invention inner tube assembly whole in drilling process is located in core chamber, core temperature in low-temperature receiver reduction basket, suppress decomposition of hydrate, core chamber's bottom drilling fluid is also because low temperature solidifies, certain pressure can be maintained in core chamber, hydrate is not decomposed in lifting process in rock core, realizes that high-fidelity is sampled.
Description
Technical field
Fidelity core drill is freezed the present invention relates to a kind of ocean gas hydrate, it is adaptable to ocean gas hydrate
Exploration Domain, obtains high-fidelity sea bed gas hydrate sample, significant for reservoir property analysis, resource assessment.
Background technology
Gas hydrates are formed under certain Temperature-pressure Conditions like ice and snow shape crystalline compounds, and hydrone is in hydrogen bond
Effect is lower to form " cage ", and gas molecule (guest molecule) is filled in the hole of hydrone crystallization framework.Gas hydrates are wide
General preservation is in permafrost band and seabed, because its reserves is huge, is a kind of clean energy resource, it is considered to be 21st century is potential
The energy.Gas hydrates formation and preservation are in the environment of high pressure low temperature, and the drill sampling of gas hydrates is for hydration
Thing evaluation and exploit significant, according to gas hydrates stabilizing voltage characteristic curve, if temperature or pressure condition become
Change and exceed equilibrium condition, may result in gas hydrate dissociation, therefore very high requirement is proposed to core drilling work.Mesh
Preceding gas hydrates sampler both domestic and external is main by two kinds：One kind is heat-insulation pressure keeping sampler, and one kind is that hole-bottom frozen takes
Sample device.Heat-insulation pressure keeping sampler uses ball valve reprint pressurize, and maintains the pressure in basket with pressure compensator, uses guarantor
Adiabator is incubated, and success rate of being cored in practical application is low；Gas hydrate hole-bottom frozen sampling method is existed by external source
Bottom hole directly freezed gas hydrates rock core, gas hydrates core temperature is reduced to below equilibrium temperature to suppress water
The decomposition of compound, so as to obtain hydrate fidelity sample.
The content of the invention
The present invention proposes a kind of ocean natural gas hydration according to ocean gas hydrate hole-bottom frozen technology sampling theorem
Thing freezes fidelity core drill, by the way of active cools, and the hydrate suppressed in rock core is decomposed in lifting process,
For the sampling of ocean hydrate high-fidelity.
In ocean gas hydrate freezing fidelity core drill, including an outer pipe assembly and one of the present invention
Pipe assembly, it is characterised in that also salvage freezing assembly including one：
The outer tube upper end of the outer pipe assembly is provided with inwall in the middle part of adapter coupling, the outer tube of outer pipe assembly and is provided with seat
Ring, the outer pipe bottom of outer pipe assembly is provided with a centering ring, and the outer tube lower end of outer pipe assembly is provided with drill bit；
Said inner tube assembly includes a hollow basket, and basket lower end is installed to be provided with pawl spring, rock core tube chamber
There is emptying passage above piston, rock core tube cavity, basket upper end connects a bullet card holder by bearing, plays and installed in the middle part of card holder
Have and a recovery tube is cased with outside bullet card and tension spring, upper pipe, recovery tube can be moved on card holder is played, and the upper end of recovery tube, which is provided with, drags for
Spearhead, has hanging ring in the lower end of upper pipe, when inner tube assembly is placed in outer tube, and adapter coupling lower end is acted in bullet card and tension spring
Boss limitation inner tube assembly is moved up；Hanging ring is stuck in limitation inner tube assembly on seat ring and moved down；
The freezing assembly of salvaging includes having an incubation cavity in a body, body, and incubation cavity inwardly has a storage cold
Chamber, it is rock core chamber to store up cold intracavitary side, and rock core intracavitary has a lifting arm, and the lower end of lifting arm is provided with recovery hook, salvages freezing
When assembly enters outer pipe assembly upper end, recovery hook, which is caught, to be dragged for spearhead and inner tube assembly lifting is arrived into rock by moving up for lifting arm
In the chambers of the heart.
The course of work of drilling tool of the present invention is as follows：
1st, it is put under the inner tube assembly for finishing assembling in outer tube assembly and to bottom hole, bullet is opened in the presence of being stuck in tension spring
Open, hanging ring is seated on seat ring, the play up and down of inner tube is limited, directly to core-drilling；
2nd, with the continuous drilling depth of drilling tool, rock core promotes the piston in basket to move up, and the flushing liquor in basket passes through row
Empty passage discharge, until rock core is full of basket；
3rd, in drilling process, freezing assembly is salvaged in assembling, and low temperature cold source is injected into the cold chamber of storage；
4th, after the drilling for completing a round trip, freezing assembly is salvaged using the decentralization of winch rope, freezing assembly lower end is salvaged
Into outer pipe assembly, recovery hook, which is caught, drags for spearhead, in the presence of the neck of recovery tube top, and bullet card is reclaimed, and is moved on on recovery tube
After one segment distance, bottom neck blocks bullet bayonet lock, and lifting lower drilling tool together rises.Lifting arm is above carried by winch, inner tube is total
Move up, the disconnected rock core of the card of pawl spring 14, moved on inner tube assembly in rock core chamber into recovery hook.
4th, a whole set of drilling tool is up with lifting of winch, now, and low-temperature receiver is dropped by conducting heat to whole inner tube assembly in freezing chamber
Temperature.
5th, by after drilling tool lifting to drilling platforms, removal of core is placed in liquid nitrogen, in case detection and analysis.
The present invention obtains rock core by pawl spring, and rock core promotes basket piston stroking upward, and rock core is not bored during drilling depth
Well liquid pollutes, in drilling process, and whole inner tube assembly is located at rock core intracavitary, and low-temperature receiver passes through the rock core temperature in the reduction basket that conducts heat
Degree, suppresses decomposition of hydrate, and rock core bottom of chamber portion drilling fluid is also solidified because of low temperature, and certain pressure, rock can be also maintained in rock core chamber
Hydrate is not decomposed in lifting process in the heart, realizes that high-fidelity is sampled.
Brief description of the drawings
Fig. 1 is the outer pipe assembly of the present invention and inner tube assembly front view.
Fig. 2 is inner tube assembly front view of the present invention.
Fig. 3 salvages freezing assembly front view for the present invention.
Fig. 4 is recovery tube front view.
Fig. 5 is recovery tube left view.
Legend：
1st, spearhead is dragged for, 2, adapter coupling, 3, spring catch, 4, recovery tube, 5, tension spring, 6, bullet card, 7, play bayonet lock, 8, bearing,
9th, seat ring, 10, emptying passage, 11, basket, 12, piston, 13, spacing ring, 14, pawl spring, 15, drill bit, 16, reamer, 17,
Centering ring, 18, hanging ring, 19, outer tube, 20, low-temperature receiver hand-hole, 21, lifting arm, 22, incubation cavity, 23, store up cold chamber, 24, copper
Heat transfer layer, 25, rock core chamber, 26, spring, 27, recovery hook, 28, positioning shaft sleeve, 29, locating shaft, 30, recovery hook spring catch, 31,
Only move pin, 32, rivet, 33, relief valve, 34, suspension ring, 35, crowfoot frame, 36, play card holder, 37, play neck, 38, neck.
Embodiment
The threaded upper ends of outer tube 19 of the outer pipe assembly install adapter coupling 2, and the lower end of adapter coupling 2 is formed in outer tube 19
One baffle ring, the outer middle part inwall of pipe assembly outer tube 19 is provided with seat ring 9, and the outer pipe bottom of outer pipe assembly is provided with a centering ring
17, vertical direction is positioned at by seat ring 9 and centering ring 17 when inner tube assembly is entered in outer tube.The lower end of outer tube 19 of outer pipe assembly
Provided with drill bit 15, reamer 16 is installed on the lower end outer wall of outer tube 19 of outer pipe assembly；Centering ring 17 and seat ring 9 is circumferentially disposed has
Opening, during decentralization drilling tool to shaft bottom, flushing liquor is changed to circulate through opening by annular clearance circulation.
Inner tube assembly includes a hollow basket 11, and the lower end of basket 11, which is installed in pawl spring 14, the chamber of basket 11, pacifies
Equipped with piston 12, there is the spacing ring 13 for preventing piston from coming off the lower section of basket 11, and there are emptying passage 10, rock core in the top of basket 11
The upper end of pipe 11 connects a column bullet card holder 36 by bearing 8, plays card holder 36 and is cased with a recovery tube 4, recovery tube 4 can be in bullet card
Moved on frame 36, the upper end of recovery tube 4, which is provided with, drags for spearhead 1, bullet card 6 and tension spring 7 are installed playing the middle part of card holder 36, in bullet card
There is hanging ring 18 lower end of frame 36, constitutes inner tube detent mechanism by spring catch 3, tension spring 5, bullet card 6, bullet bayonet lock 7, inner tube assembly is put
When in outer pipe assembly, bullet card 6 is opened the baffle ring formed by adapter coupling 2 and blocked under the effect of tension spring 7, on limitation inner tube assembly
Move.Hanging ring 18 is arranged on the lower section of bearing 8, when inner tube assembly is placed in outer pipe assembly, and hanging ring 18 is blocked by seat ring 9,
Limitation inner tube assembly is moved down；Bearing 8 ensure that basket is not rotated with outer tube, reduce the disturbance to rock core；
Salvaging freezing assembly includes a body, and body stores up cold chamber 23 and rock to annular incubation cavity 22, annular is set gradually
The chambers of the heart 25, the cold chamber upper end of annular storage, which has, a lifting arm 21, lifting arm in relief valve 33 and low-temperature receiver hand-hole 20, rock core chamber 25
Upper end is provided with the suspension ring 34 for connecting rope, and the lower end of lifting arm 21 is threadedly coupled crowfoot frame 35, and recovery hook 27 is fixed on
On crowfoot frame 35, recovery hook 27 is in X-shape, and centre is hinged by recovery hook spring catch 30, forms bottom pawl and dewclaw, and two dewclaws lead to
Cross pin 32 to connect, spring 26 is cased with pin 32；There is thrust pin 31 below dewclaw, the lower end of rock core chamber 25 has and the phase of thrust pin 31
Respective slot, both constitute the location structure of recovery hook 27.When salvaging freezing assembly enters outer pipe assembly upper end, recovery hook 27
Lower claw, which is caught, drags for spearhead 1, and the top of recovery hook 27 is only moved to contract and sealing lost between pin and rock core chamber and spacing, meanwhile,
Under the compressing of the top bullet neck 37 of recovery tube 4, bullet card 6 is reclaimed, and is moved on on recovery tube 4 after a segment distance, recovery tube bottom neck
38 block bullet bayonet lock 7, lifting lower drilling tool together rise in rock core chamber, to inner tube completely into rock core chamber when, whole drilling tool
Well head is together promoted to suspension ring 34.
The low-temperature receiver mixture that the present embodiment is taken is liquid nitrogen, low temperature, crude alcohol mixture, and during low-temperature condition, dry ice is melted into
In the mixture of low-temperature condition, with the rise of temperature, dry ice sublimation stores up pressure rise in cold chamber 23, and pressure reaches relief valve
During Opening pressure, CO2 gases are overflowed by relief valve 33.
The present embodiment filled heat insulating material in incubation cavity, for reducing the cold chamber of storage by outside tube wall and ambient heat,
The insulation material that the present invention is used is aerogel blanket, and does encapsulation process in upper and lower ends.
Claims (4)
1. a kind of ocean gas hydrate freezes fidelity core drill, including an outer pipe assembly and an inner tube assembly, its
It is characterised by that also including one salvages freezing assembly：
Outer tube (19) upper end of the outer pipe assembly is provided with the middle part of adapter coupling (2), the outer tube (19) of outer pipe assembly on inwall
Provided with seat ring (9), the outer pipe bottom of outer pipe assembly is provided with a centering ring (17), and the outer tube lower end of outer pipe assembly is provided with drill bit
(15)；
Said inner tube assembly includes a hollow basket (11), and pawl spring (14), basket are installed in basket (11) lower end
(11) intracavitary, which is provided with above piston (12), basket (11) inner chamber, emptying passage (10), and basket (11) upper end passes through axle
Hold (8) and connect a bullet card holder (36), playing bullet card (6) and tension spring (7) are installed in the middle part of card holder (36), play card holder (36) overcoat
There is a recovery tube (4), recovery tube (4) can be moved on card holder (36) is played, and the upper end of recovery tube (4), which is provided with, drags for spearhead (1),
Playing the lower end of card holder (36) has a hanging ring (18), inner tube assembly be placed in outer tube (19) it is interior when, in bullet card (6) and tension spring (5) effect
The boss limitation inner tube assembly of adapter coupling (2) lower end is moved up；Hanging ring (18) is stuck on seat ring (9) and limited under inner tube assembly
Move；
Salvaging freezing assembly includes having an incubation cavity (22) in a body, body, and incubation cavity (22) inwardly has a storage cold
Chamber (23), it is to have in rock core chamber (25), rock core chamber (25) under a lifting arm (21), lifting arm (21) to store up on the inside of cold chamber (23)
End is provided with recovery hook (27), and when salvaging freezing assembly enters outer pipe assembly upper end, recovery hook (27), which is caught, drags for spearhead (1) simultaneously
Inner tube assembly is lifted into rock core chamber by moving up for lifting arm (21).
2. a kind of ocean gas hydrate freezing fidelity core drill according to claim 1, it is characterised in that salvage
It is annular to freeze the incubation cavity (22) in assembly body and store up cold chamber (23).
3. a kind of ocean gas hydrate freezing fidelity core drill according to claim 1 or 2, it is characterised in that
There are relief valve (33) and low-temperature receiver hand-hole (20) in the cold chamber upper end of annular storage.
4. a kind of ocean gas hydrate freezing fidelity core drill according to claim 1 or 2 or 3, its feature exists
In the lower end threaded connection crowfoot frame (35) of lifting arm (21), recovery hook (27) is fixed on crowfoot frame (35), recovery hook (27)
In X-shape, centre is hinged by recovery hook spring catch (30), forms bottom pawl and dewclaw, and two dewclaws are connected by pin (32), pin
Spring (26) is cased with nail (32)；There is thrust pin (31) below dewclaw, rock core chamber (25) lower end has corresponding with thrust pin (31)
Groove, both constitute the location structure of recovery hook (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234774.4A CN106988697B (en) | 2017-04-12 | 2017-04-12 | Freezing fidelity core drill of ocean natural gas hydrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234774.4A CN106988697B (en) | 2017-04-12 | 2017-04-12 | Freezing fidelity core drill of ocean natural gas hydrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106988697A true CN106988697A (en) | 2017-07-28 |
| CN106988697B CN106988697B (en) | 2021-06-18 |
Family
ID=59415818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710234774.4A Active CN106988697B (en) | 2017-04-12 | 2017-04-12 | Freezing fidelity core drill of ocean natural gas hydrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106988697B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360992A (en) * | 2018-03-24 | 2018-08-03 | 吉林大学 | Ice shelf bottom ice sheet hot melt coring method based on hot water drilling and coring device |
| CN108930517A (en) * | 2018-08-13 | 2018-12-04 | 四川大学 | Hard rock core drill |
| CN108952611A (en) * | 2018-10-22 | 2018-12-07 | 吉林大学 | A kind of ocean hole bottom freezing cord coring drill and method |
| CN109403900A (en) * | 2018-12-06 | 2019-03-01 | 深圳大学 | Deep rock is guaranteed the quality coring device and its coring method |
| PL424017A1 (en) * | 2017-12-22 | 2019-07-01 | Uniwersytet im. Adama Mickiewicza | Device for collecting samples of subaquatic sediments |
| CN111119776A (en) * | 2020-03-03 | 2020-05-08 | 湖南科技大学 | Rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration |
| WO2020133724A1 (en) * | 2018-12-26 | 2020-07-02 | 深圳大学 | Fidelity retaining type coring device for rock sample |
| CN113622852A (en) * | 2021-08-12 | 2021-11-09 | 深圳大学 | Heat-preservation and pressure-maintaining coring device based on cold source and coring method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514614A (en) * | 2009-04-02 | 2009-08-26 | 吉林大学 | Dry ice sublimation hole bottom refrigerating and pressure keeping sampler and sampling method |
| US20090229382A1 (en) * | 2008-03-14 | 2009-09-17 | Jilin University | Sampling method and sampler for gas hydrates by hole bottom freezing |
| CN201835777U (en) * | 2010-05-27 | 2011-05-18 | 吉林大学 | Hole bottom freezing rope core drill |
| CN102943642A (en) * | 2012-12-08 | 2013-02-27 | 吉林大学 | Lifting-free borehole bottom rope freezing coring drilling tool and method |
| CN104653134A (en) * | 2014-12-16 | 2015-05-27 | 吉林大学 | Liquid-nitrogen natural-gas hydrate hole bottom freezing and rope coring drill bit |
| CN106194168A (en) * | 2016-09-09 | 2016-12-07 | 河南理工大学 | A kind of coal seam low temperature pinpoints ice-bound sampler and using method thereof |
| CN206053940U (en) * | 2016-09-09 | 2017-03-29 | 河南理工大学 | A kind of coal seam low temperature pinpoints ice-bound sampler |
-
2017
- 2017-04-12 CN CN201710234774.4A patent/CN106988697B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090229382A1 (en) * | 2008-03-14 | 2009-09-17 | Jilin University | Sampling method and sampler for gas hydrates by hole bottom freezing |
| CN101514614A (en) * | 2009-04-02 | 2009-08-26 | 吉林大学 | Dry ice sublimation hole bottom refrigerating and pressure keeping sampler and sampling method |
| CN201835777U (en) * | 2010-05-27 | 2011-05-18 | 吉林大学 | Hole bottom freezing rope core drill |
| CN102943642A (en) * | 2012-12-08 | 2013-02-27 | 吉林大学 | Lifting-free borehole bottom rope freezing coring drilling tool and method |
| CN104653134A (en) * | 2014-12-16 | 2015-05-27 | 吉林大学 | Liquid-nitrogen natural-gas hydrate hole bottom freezing and rope coring drill bit |
| CN106194168A (en) * | 2016-09-09 | 2016-12-07 | 河南理工大学 | A kind of coal seam low temperature pinpoints ice-bound sampler and using method thereof |
| CN206053940U (en) * | 2016-09-09 | 2017-03-29 | 河南理工大学 | A kind of coal seam low temperature pinpoints ice-bound sampler |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL424017A1 (en) * | 2017-12-22 | 2019-07-01 | Uniwersytet im. Adama Mickiewicza | Device for collecting samples of subaquatic sediments |
| CN108360992A (en) * | 2018-03-24 | 2018-08-03 | 吉林大学 | Ice shelf bottom ice sheet hot melt coring method based on hot water drilling and coring device |
| CN108930517A (en) * | 2018-08-13 | 2018-12-04 | 四川大学 | Hard rock core drill |
| CN108930517B (en) * | 2018-08-13 | 2024-03-22 | 四川大学 | Hard rock core drill |
| CN108952611A (en) * | 2018-10-22 | 2018-12-07 | 吉林大学 | A kind of ocean hole bottom freezing cord coring drill and method |
| CN109403900A (en) * | 2018-12-06 | 2019-03-01 | 深圳大学 | Deep rock is guaranteed the quality coring device and its coring method |
| CN109403900B (en) * | 2018-12-06 | 2023-06-27 | 深圳大学 | Deep rock quality guarantee coring device and coring method thereof |
| WO2020133724A1 (en) * | 2018-12-26 | 2020-07-02 | 深圳大学 | Fidelity retaining type coring device for rock sample |
| US11781390B2 (en) | 2018-12-26 | 2023-10-10 | Shenzhen University | Fidelity retaining type coring device for rock sample |
| CN111119776A (en) * | 2020-03-03 | 2020-05-08 | 湖南科技大学 | Rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration |
| CN111119776B (en) * | 2020-03-03 | 2024-04-09 | 湖南科技大学 | Rope core drilling tool suitable for large-caliber horizontal engineering geological exploration |
| CN113622852A (en) * | 2021-08-12 | 2021-11-09 | 深圳大学 | Heat-preservation and pressure-maintaining coring device based on cold source and coring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106988697B (en) | 2021-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106988697A (en) | A kind of ocean gas hydrate freezes fidelity core drill | |
| CN108360994B (en) | Impact rotary type natural gas hydrate hole bottom freezing rope coring drilling tool and method | |
| CN101864916B (en) | Hole bottom freezing cord coring drill and coring method thereof | |
| CN108518191B (en) | Natural gas hydrate pressure maintaining coring device | |
| CN104653134B (en) | Liquid nitrogen gas hydrate hole-bottom frozen core plugging notifying mechanism of rope core drilling | |
| CN104929554B (en) | Pneumatic circulating freezing type gas hydrates cord coring drill and coring method | |
| CN106761513B (en) | A kind of rope salvaging type coring drilling with keep up pressure drilling tool | |
| CN105041251B (en) | Gas hydrate hole-bottom frozen double elastic-clip cord coring drill and coring method | |
| CN106351597B (en) | A kind of gas hydrates pressurize cord coring drill suitable for seabed drilling machine | |
| CN201835777U (en) | Hole bottom freezing rope core drill | |
| CN107219090B (en) | Seabed freezing pressure-maintaining gravity piston sampler and sampling method thereof | |
| CN104499976B (en) | The hole-bottom frozen core plugging notifying mechanism of rope core drilling of ethanol and liquid nitrogen hybrid refrigeration | |
| CN105156056B (en) | Gas hydrate hole-bottom frozen surges cord coring drill and coring method | |
| CN102943642A (en) | Lifting-free borehole bottom rope freezing coring drilling tool and method | |
| CN106194089B (en) | Low-temperature receiver external gas hydrate hole-bottom frozen rope sampler | |
| CN101514614A (en) | Dry ice sublimation hole bottom refrigerating and pressure keeping sampler and sampling method | |
| CN108952611B (en) | Marine hole bottom freezing rope coring drilling tool and method | |
| CN102943641A (en) | Liquid nitrogen hole bottom frozen rope core drilling tool and core-drilling method | |
| CN205691360U (en) | Coal seam gas-bearing capacity measures advanced freezing sampler | |
| CN2617915Y (en) | Preserved sampling drill | |
| CN105569594B (en) | A kind of shale gas and rock core pressurize sealed sampler | |
| CN107956443A (en) | Adaptive membrane type shale gas and rock core pressurize sealed sampler | |
| CN107503700A (en) | The gas hydrates cord coring drill and coring method of alcohol and liquid nitrogen hybrid refrigeration | |
| CN204024540U (en) | A kind of continuous circulation valve | |
| CN106884626A (en) | A kind of two-tube drilling tool detent mechanism of anti-dieback formula |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |