CN205714123U - A kind of cold seepage district seepage Gas Exploitation acquisition means - Google Patents
A kind of cold seepage district seepage Gas Exploitation acquisition means Download PDFInfo
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- CN205714123U CN205714123U CN201620578929.7U CN201620578929U CN205714123U CN 205714123 U CN205714123 U CN 205714123U CN 201620578929 U CN201620578929 U CN 201620578929U CN 205714123 U CN205714123 U CN 205714123U
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- Prior art keywords
- seepage
- collecting chamber
- acquisition means
- district
- cold
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Abstract
The utility model discloses a kind of cold seepage district seepage Gas Exploitation acquisition means, including collection chamber, collecting chamber, buoyancy device and air accumulator, it is coaxially connected that described collection chamber, described collecting chamber and described buoyancy device pass sequentially through guiding buoy chain from top to bottom, described buoyancy device connects with described air accumulator, described collecting chamber rises or falls along described guiding buoy chain, and then is attached with described collection chamber and described buoyancy device or disconnects.Described cold seepage district seepage Gas Exploitation acquisition means utilizes bottom-water temperature and the pressure change impact on cold spring district seepage natural gas state, carries out the collection of cold spring district seepage natural gas；Described cold seepage district seepage Gas Exploitation acquisition means collecting efficiency is high, and gatherer process safety has important economic implications.
Description
Technical field
This utility model relates to gas collecting technical field, relates in particular to a kind of cold seepage district seepage Gas Exploitation
Acquisition means.
Background technology
Cold spring is some fluid components produced after gas hydrate dissociation under the seabed spillings on surface, seabed, cold
The temperature of spring is basically identical with seabed environment temperature, and the fluid of spilling, rich in components such as methane, hydrogen sulfide and carbon dioxide, can be given
Some change the nutrient that the microorganism that can synthesize provides abundant, and the abundant biome that we see now that i.e. can synthesize with these changes
Microorganism is as primary productivity.Cold spring region is typically all the place of deep seafloor life hyperactive, compared to other
Deep seafloor, cold spring seems " oasis in desert ".Cold spring has following Research Significance: one is research Earth biosphere
Window, two is one of mark that under seabed, gas hydrates are found, and three are whole world ring layer interaction and whole world change is ground
One of science frontier studied carefully.One of source of cold seepage hydrocarbon gas is the natural gas of gas hydrate dissociation, it is estimated
The natural gas of cold seepage activity seepage there are about 20 × 10 every year6Ton enters air, and the amount of dissolving natural gas in the seawater is then
The hugest.Therefore, the natural gas to cold seepage seepage is acquired having important economic implications.
At present, in global range, the natural gas to cold seepage release there is no ripe actual acquisition means, therefore, a kind of
The device of the natural gas that can collect cold seepage release becomes study hotspot and the difficult point of this area.
Summary of the invention
The purpose of this utility model is to provide a kind of cold seepage district seepage Gas Exploitation acquisition means, described harvester
Can be acquired the natural gas of cold seepage district release, collecting efficiency is high, gatherer process safety, has important economic meaning
Justice.
To this end, this utility model provides a kind of cold seepage district seepage Gas Exploitation acquisition means, including collection chamber, collection
Room, buoyancy device and air accumulator, described collection chamber, described collecting chamber and described buoyancy device pass sequentially through guiding buoy chain from top to bottom
Coaxially connected, described buoyancy device connects with described air accumulator, and described collecting chamber rises or falls along described guiding buoy chain, and then
It is attached with described collection chamber and described buoyancy device or disconnects.
Cold seepage district as above seepage Gas Exploitation acquisition means, described collecting chamber includes circle the most successively
Platform shape cover body, cylindrical body and lower truncated cone-shaped cover body, the diameter of described upper truncated cone-shaped cover body bottom surface is more than described cylinder originally
The diameter of body, the position that described upper truncated cone-shaped cover body engages with described cylindrical body is formed with prominent annulus limit, described on
Truncated cone-shaped cover body, described cylindrical body and described lower truncated cone-shaped cover body are internally formed collection cavity；Described collection cavity inside
Having spring stem valve, described spring stem valve includes connecting rod, is located at the spring at described connecting rod top, and is located at described spring
The volute spring valve at top, described spring stem valve rises or falls along described guiding buoy chain；In described cylindrical body
Wall is interval with acclivitous multiple natural gass capture sheet.
Cold seepage district as above seepage Gas Exploitation acquisition means, described collection chamber includes cone hollow cap, with
And it is located at the cylindrical neck portion of described cone hollow cap upper end；The lower end of described cone hollow cap is provided with multiple joining at equal intervals
Pouring weight；
Described cylindrical neck portion is internally formed gas outlet, is provided with a circle sealing ring, for institute outside described cylindrical neck portion
State being tightly connected of collection chamber and described collecting chamber；Described guiding buoy chain in described gas outlet is provided with lower limit device.
Cold seepage district as above seepage Gas Exploitation acquisition means, described buoyancy device includes buoyancy cover, described buoyancy
Cover lower end is fixed with clamper, and described buoyancy cover is internally formed docking room；On the described guiding buoy chain of described docking chamber interior
It is provided with top stop.
Cold seepage district as above seepage Gas Exploitation acquisition means, the described buoyancy cover of described buoyancy device and described storage
Gas tank is connected by elastic catheter, and described elastic catheter is provided with gas valve.
Cold seepage district as above seepage Gas Exploitation acquisition means, described harvester also includes control unit, institute
State control unit to be connected with described top stop, described clamper and described gas valve.
Cold seepage district as above seepage Gas Exploitation acquisition means, when described collection chamber is connected with described collecting chamber,
The described cylindrical neck portion of described collection chamber is connected by post cone-shaped with the described lower truncated cone-shaped cover body of described collecting chamber,
The described volute spring valve of described collecting chamber is closed, and described volute spring valve cover is described in described collecting chamber
On upper truncated cone-shaped cover body so that described collecting chamber upper end is in sealing state.
When cold seepage district as above seepage Gas Exploitation acquisition means, described collecting chamber and described buoyancy device connect,
The described spring stem valve of described collecting chamber contacts with the described top stop of described buoyancy device, and described spring is in compression shape
State, described volute spring valve is opened, and the described annulus limit of collecting chamber is stated in described gripper residence, and then locking is described
Buoyancy device and the connection of described collecting chamber.
Cold seepage district as above seepage Gas Exploitation acquisition means, the lower end of described guiding buoy chain and described gas collection
Room is connected, and the upper end of described guiding buoy chain connects ball float.
Compared with prior art, advantage of the present utility model and good effect are: this utility model provides a kind of seabed
Cold spring district seepage Gas Exploitation acquisition means, described harvester includes collection chamber, collecting chamber, buoyancy device and air accumulator, described collection
It is coaxially connected that air chamber, described collecting chamber and described buoyancy device pass sequentially through guiding buoy chain from top to bottom, described buoyancy device and institute
State air accumulator connection, described collecting chamber rises or falls along described guiding buoy chain, so with described collection chamber and described buoyancy
Device is attached or disconnects.Cold seepage district seepage natural gas enters collection chamber, and subsequently into collecting chamber, now collecting chamber is in
Seabed, the temperature and pressure in seabed makes the natural gas in collecting chamber gradually be changed into solid-state by gaseous state, when collecting chamber gradually by
While gas hydrates crystal is filled, the sea water in collecting chamber is drained out, and the buoyancy of collecting chamber is gradually increased.Collect
Room is connected along guiding buoy chain rising with buoyancy device under the effect of buoyancy, buoyancy device distance sea level 50-150m, now receives
The gas hydrates crystal transformation of collection indoor becomes gaseous natural gas, gaseous natural gas to enter buoyancy device from collecting chamber, the most again
Enter air accumulator.This utility model sends out cold seepage district described, and seepage Gas Exploitation acquisition means collecting efficiency is high, simple in construction, just
In maintenance, natural gas gathers process safety, has important economic implications.
After reading in conjunction with the accompanying detailed description of the invention of the present utility model, other features of the present utility model and advantage will become
Obtain clearer.
Accompanying drawing explanation
Fig. 1 is the local of a kind of embodiment of the collecting chamber of this utility model cold seepage district seepage Gas Exploitation acquisition means
Sectional view；
When Fig. 2 is collection chamber and the collecting chamber connection of this utility model cold seepage district seepage Gas Exploitation acquisition means
A kind of partial sectional view of embodiment；
Fig. 3 is a during collecting chamber and the buoyancy device connection of this utility model cold seepage district seepage Gas Exploitation acquisition means
Plant the partial sectional view of embodiment.
In Fig. 1-Fig. 3, the component names of reference and correspondence thereof is as follows:
1. collection chamber；11. cone hollow cap；12. cylindrical neck portion；13. balancing weights；14. gas outlets；15. bottom limits
Position device；16. sealing rings；2. collecting chamber；Truncated cone-shaped cover body on 21.；22. cylindrical bodies；23. times truncated cone-shaped cover bodies；24. annulus
Limit；25. natural gas capture sheets；26. connecting rods；27. springs；28. volute spring valves；29. collect cavity；3. buoyancy device；31.
Buoyancy cover；32. docking rooms；33. clampers；34. top stops；4. air accumulator；5. guide buoy chain；6. elastic catheter；61.
Gas valve；7. ball float.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below with reference to accompanying drawing and reality
Execute example, this utility model is described in further detail.
As shown in Figure 1-Figure 3, seepage Gas Exploitation acquisition means in the present embodiment cold seepage district includes collection chamber 1, catcher
2, buoyancy device 3 and air accumulator 4, collection chamber 1, collecting chamber 2 and buoyancy device 3 pass sequentially through guiding buoy chain 5 from top to bottom and coaxially connect
Connecing, buoyancy device 3 connects with air accumulator 4；Collecting chamber 2 along guide buoy chain 5 rise or fall, and then with collection chamber 1 and buoyancy device 3
It is attached or disconnects.
Collection chamber 1 includes cone hollow cap 11, and is located at the cylindrical neck portion 12 of cone hollow cap 11 upper end；Circle
The lower end of conical hollow cover 11 is provided with multiple balancing weight 13 at equal intervals；Cylindrical neck portion 12 is internally formed gas outlet 14, cylindrical
A circle sealing ring 16 it is provided with, for being tightly connected of collection chamber 1 and collecting chamber 2 outside cervical region 12；Guiding in gas outlet 14 is floated
Mark chain 5 is provided with lower limit device 15.Multiple balancing weights 13 are spacedly distributed in the lower end of collection chamber 1, can increase collection chamber 1
Weight, it is also possible to make collection chamber 1 keep balance, do not have and crooked situation is installed.As preferred embodiment, under
Portion's stop 15 is connected on guiding buoy chain 5.
Collecting chamber 2 includes truncated cone-shaped cover body 21, cylindrical body 22 and lower truncated cone-shaped cover body 23 the most successively, on
The diameter of truncated cone-shaped cover body 21 bottom surface is more than the diameter of cylindrical body 22, and upper truncated cone-shaped cover body 21 engages with cylindrical body 22
Position be formed with prominent annulus limit 24, the internal shape of upper truncated cone-shaped cover body 21, cylindrical body 22 and lower truncated cone-shaped cover body 23
Become to collect cavity 29；Collecting cavity 29 inside and have spring stem valve, spring stem valve includes connecting rod 26, is located at connecting rod 26 top
Spring 27, and be located at the volute spring valve 28 at spring 27 top, spring stem valve along guide buoy chain 5 rise or under
Fall；Cylindrical body 22 inwall is interval with acclivitous multiple natural gass capture sheet 25.
Buoyancy device 3 includes that buoyancy cover 31, buoyancy cover 31 lower end are fixed with clamper 33, and buoyancy cover 31 is internally formed docking room
32, docking guiding buoy chain 5 within room 32 is provided with top stop 34.As preferred embodiment, top stop
34 are connected on guiding buoy chain 5.
The buoyancy cover 31 of buoyancy device 3 connects 6 with air accumulator 4 by elastic catheter, and elastic catheter 6 is provided with gas valve
61。
The lower end guiding buoy chain 5 is connected with collection chamber 1, and the upper end connection guiding buoy chain 5 has ball float 7.As preferably
Embodiment, multiple balancing weights 13 of the lower end and the collection chamber 1 that guide buoy chain 5 are connected, and the upper end guiding buoy chain 5 connects
There is floating ball float 7 across the sea；Guiding buoy chain 5, can be substantially under the pulling force effect of multiple balancing weights 13 and ball float 7
Keep vertical state.
The present embodiment harvester also includes control unit (being not shown), control unit and top stop 34,
Clamper 33 is connected with gas valve 61.
When collection chamber 1 is connected with collecting chamber 2, the cylindrical neck portion 12 of collection chamber 1 and the lower truncated cone-shaped cover body 23 of collecting chamber 2
Being connected by post cone-shaped, the volute spring valve 28 of collecting chamber 2 is closed, and volute spring valve 28 covers on receipts
On the upper truncated cone-shaped cover body 21 of collection room 2 so that collecting chamber 2 upper end is in sealing state.
When collecting chamber 2 and buoyancy device 3 connect, the spring stem valve of collecting chamber 2 contacts with the top stop 34 of buoyancy device 3,
Spring 27 is in compressive state, and volute spring valve 28 is opened, and clamper 33 clamps the annulus limit 24 of collecting chamber 2, and then
Locking buoyancy device 3 and the connection of collecting chamber 2.
The gatherer process of the present embodiment cold seepage district seepage Gas Exploitation acquisition means comprises the steps:
(1) cold seepage district seepage Gas Exploitation acquisition means is installed so that collection chamber 1 is positioned at cold seepage district, collection chamber 1
Being connected with collecting chamber 2, buoyancy device 3 suspends in the seawater, and distance sea level 50-150m, air accumulator 4 is arranged on operation hull；
(2), during cold seepage district seepage natural gas enters collection chamber 1, the natural gas in collection chamber 1 enters in collecting chamber 2；
The temperature and pressure in cold seepage district makes the natural gas in collecting chamber 2 be solidified into gas hydrates crystal, in collecting chamber 2
Multiple natural gass capture sheet 25 be used for preserving gas hydrates crystal；When collecting chamber 2 is filled by gas hydrates crystal
While, the sea water in collecting chamber 2 is discharged so that the buoyancy of collecting chamber 2 increases, and then makes collecting chamber 2 at the work of buoyancy
Rise along guiding buoy chain 5 under with；
(3) the top stop 34 of spring stem valve and buoyancy device 3 that collecting chamber 2 rises to collecting chamber 2 contacts so that spring
27 compressions, then make volute spring valve 28 be opened, and then collecting chamber 2 and buoyancy device 3 are connected；Top stop 34
Sending a signal to control unit, control unit controls clamper 33 and closes so that clamper 33 clamps the annulus limit of collecting chamber 2
24, and then lock buoyancy device 3 and the connection of collecting chamber 2；
(4) buoyancy device 3 is apart from sea level 50-150m, when collecting chamber 2 rises to be connected with buoyancy device 3, collecting chamber 2 institute
Ambient temperature and the ambient pressure at place make gas hydrates crystal transformation become gaseous natural gas, the gaseous state sky in collecting chamber 3
In so gas enters the docking room 32 of buoyancy device 3；
(5) when spring 27 is in compressive state, control unit opens the gas valve 61 of elastic catheter 6 so that buoyancy
Gaseous natural gas in the docking room 32 of device 3 is entered in air accumulator 4 by elastic catheter 6.
As preferred embodiment, the lower truncated cone-shaped cover body 23 of the cylindrical neck portion 12 of collection chamber 1 and collecting chamber 2 passes through
Post cone-shaped is connected, and the sealing ring 16 outside cylindrical neck portion 12 may be used for the sealing of collection chamber 1 and collecting chamber 2 even
Connect, thereby may be ensured that collection chamber 1 will not be revealed with the natural gas in collecting chamber 2.When collection chamber 1 is connected with collecting chamber 2, collect
The volute spring valve 28 of room 2 is closed, and volute spring valve 28 covers on the upper truncated cone-shaped cover body 21 of collecting chamber 2,
Collecting chamber 2 upper end is made to be in sealing state.Buoyancy device 3 is fixed on guiding buoy chain 5 so that buoyancy device 3 is suspended in sea
In water, and distance sea level 50-150m.
As preferred embodiment, when collection chamber 1 is connected with collecting chamber 2, the natural gas in collection chamber 1 passes through collection chamber
The gas outlet 14 of 1 enters in the collection cavity 29 of collecting chamber 2；The temperature and pressure in cold seepage district makes the receipts of collecting chamber 2
In collection cavity 29, natural gas is solidified into gas hydrates crystal, and the multiple natural gass capture sheet 25 in collecting chamber 2 can be protected
Deposit gas hydrates crystal；Sheet 25 is spaced the capture of multiple natural gass, being inclined upwardly is located on cylindrical body 22 inwall, thus
Can ensure that gas hydrates crystal will not spill from collecting chamber 2；As preferred embodiment, natural gas capture 25
It can be indium watt alloy.
As preferred embodiment, the top stop 34 of buoyancy device 3 is connected on guiding buoy chain 5, and top is spacing
Device 34 may be used for controlling the extreme position that collecting chamber 2 rises.
As preferred embodiment, collecting chamber 2 and buoyancy device 3 connect, and buoyancy device 3 is apart from sea level 50-150m, at this
Ocean temperature and seawater pressure are so that the gas hydrates crystal transformation in collecting chamber 2 becomes gaseous natural gas.Collect
Natural gas capture sheet 25 in room 2 has high-termal conductivity, can improve the efficiency of heat transfer, and then can accelerate natural gas hydration
Thing crystal transformation becomes the speed of gaseous natural gas.
As preferred embodiment, air accumulator 4 is provided with compressor (being not shown), for by air accumulator 4
In gaseous natural gas change into liquified natural gas, liquified natural gas is readily transported and preserves.When gaseous natural gas is by elasticity
When conduit 6 enters in air accumulator 4, the docking room 32 of collecting chamber 2 and buoyancy device 3 can be filled by sea water, the buoyancy meeting of collecting chamber 2
Reduce；When docking room 32 and being full of by sea water, control unit is closed gas valve 61, is opened clamper 33, and then makes to collect
Room 2 separates with buoyancy device 3, and the spring valve 28 of collecting chamber 2 recovers closed mode automatically, and collecting chamber 2 declines under gravity；
Collecting chamber 2 drops to when being connected with collection chamber 1, can start the cold seepage district seepage natural gas gatherer process of next round；Collection
The lower limit device 15 of air chamber 1 is for controlling the extreme position that collecting chamber 2 declines, and collecting chamber 2 drops to the connecting rod of collecting chamber 2
26 when contacting with the lower limit device 15 of collection chamber 1, and collecting chamber 2 stops declining.
The present embodiment cold seepage district seepage Gas Exploitation acquisition means collecting efficiency is high, simple in construction, it is simple to safeguard, natural
Gas gatherer process safety, has important economic implications.
Above example is only in order to illustrate the technical solution of the utility model, rather than is limited；Although with reference to front
State embodiment this utility model has been described in detail, for the person of ordinary skill of the art, still can be right
Technical scheme described in previous embodiment is modified, or wherein portion of techniques feature is carried out equivalent；And these
Amendment or replace, do not make appropriate technical solution essence depart from this utility model technical scheme required for protection spirit and
Scope.
Claims (9)
1. a cold seepage district seepage Gas Exploitation acquisition means, it is characterised in that include collection chamber, collecting chamber, buoyancy device and
Air accumulator, it is coaxially connected that described collection chamber, described collecting chamber and described buoyancy device pass sequentially through guiding buoy chain from top to bottom, institute
Stating buoyancy device to connect with described air accumulator, described collecting chamber rises or falls along described guiding buoy chain, so with described gas collection
Room and described buoyancy device are attached or disconnect.
2. cold seepage district as claimed in claim 1 seepage Gas Exploitation acquisition means, it is characterised in that
Described collecting chamber includes truncated cone-shaped cover body, cylindrical body and lower truncated cone-shaped cover body, described upper circle the most successively
The diameter of platform shape cover body bottom surface is more than the diameter of described cylindrical body, and described upper truncated cone-shaped cover body connects with described cylindrical body
The position closed is formed with prominent annulus limit, described upper truncated cone-shaped cover body, described cylindrical body and described lower truncated cone-shaped cover body
It is internally formed collection cavity；
Described collection cavity inside has spring stem valve, and described spring stem valve includes connecting rod, is located at described connecting rod top
Spring, and be located at the volute spring valve of described spring top, described spring stem valve rise along described guiding buoy chain or
Decline；
Described cylindrical body inwall is interval with acclivitous multiple natural gass capture sheet.
3. cold seepage district as claimed in claim 2 seepage Gas Exploitation acquisition means, it is characterised in that
Described collection chamber includes cone hollow cap, and is located at the cylindrical neck portion of described cone hollow cap upper end；
The lower end of described cone hollow cap is provided with multiple balancing weight at equal intervals；
Described cylindrical neck portion is internally formed gas outlet, is provided with a circle sealing ring, for described collection outside described cylindrical neck portion
Air chamber is tightly connected with described collecting chamber；
Described guiding buoy chain in described gas outlet is provided with lower limit device.
4. cold seepage district as claimed in claim 3 seepage Gas Exploitation acquisition means, it is characterised in that
Described buoyancy device includes that buoyancy cover, described buoyancy cover lower end are fixed with clamper, and described buoyancy cover is internally formed docking room；
The described guiding buoy chain of described docking chamber interior is provided with top stop.
5. cold seepage district as claimed in claim 4 seepage Gas Exploitation acquisition means, it is characterised in that the institute of described buoyancy device
Stating buoyancy cover to be connected by elastic catheter with described air accumulator, described elastic catheter is provided with gas valve.
6. cold seepage district as claimed in claim 5 seepage Gas Exploitation acquisition means, it is characterised in that described harvester is also
Including control unit, described control unit is connected with described top stop, described clamper and described gas valve.
7. the acquisition method of cold seepage district as claimed in claim 6 seepage Gas Exploitation acquisition means, it is characterised in that described
When collection chamber is connected with described collecting chamber, the described cylindrical neck portion of described collection chamber and the described lower truncated cone-shaped of described collecting chamber
Cover body is connected by post cone-shaped, and the described volute spring valve of described collecting chamber is closed, described Conical Projectile
Spring valve cover described collecting chamber described on truncated cone-shaped cover body so that described collecting chamber upper end is in sealing state.
8. the acquisition method of cold seepage district as claimed in claim 7 seepage Gas Exploitation acquisition means, it is characterised in that described
When collecting chamber and described buoyancy device connect, the described spring stem valve of described collecting chamber and the described top stop of described buoyancy device
Contact, described spring is in compressive state, and described volute spring valve is opened, and collecting chamber is stated in described gripper residence
Described annulus limit, and then lock described buoyancy device and the connection of described collecting chamber.
9. cold seepage district as claimed in claim 1 seepage Gas Exploitation acquisition means, it is characterised in that described guiding buoy chain
Lower end and described collection chamber be connected, the upper end of described guiding buoy chain connects ball float.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620578929.7U CN205714123U (en) | 2016-06-16 | 2016-06-16 | A kind of cold seepage district seepage Gas Exploitation acquisition means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620578929.7U CN205714123U (en) | 2016-06-16 | 2016-06-16 | A kind of cold seepage district seepage Gas Exploitation acquisition means |
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| Publication Number | Publication Date |
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| CN205714123U true CN205714123U (en) | 2016-11-23 |
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| CN201620578929.7U Expired - Fee Related CN205714123U (en) | 2016-06-16 | 2016-06-16 | A kind of cold seepage district seepage Gas Exploitation acquisition means |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927194A (en) * | 2016-06-16 | 2016-09-07 | 山东省科学院海洋仪器仪表研究所 | Device and method for collecting leakage natural gas in submarine cold seepage regions |
| CN110644952A (en) * | 2019-08-27 | 2020-01-03 | 青岛海洋地质研究所 | In-situ planting and collecting system and method for sea natural gas hydrate |
-
2016
- 2016-06-16 CN CN201620578929.7U patent/CN205714123U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927194A (en) * | 2016-06-16 | 2016-09-07 | 山东省科学院海洋仪器仪表研究所 | Device and method for collecting leakage natural gas in submarine cold seepage regions |
| CN105927194B (en) * | 2016-06-16 | 2018-04-20 | 山东省科学院海洋仪器仪表研究所 | A kind of cold seepage area leakage Gas Exploitation acquisition means and acquisition method |
| CN110644952A (en) * | 2019-08-27 | 2020-01-03 | 青岛海洋地质研究所 | In-situ planting and collecting system and method for sea natural gas hydrate |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20170616 |