CN115538992A - Method for quickly opening sealing cover in methane generating device for exploiting exposed combustible ice on seabed surface under environment of extremely high pressure difference - Google Patents
Method for quickly opening sealing cover in methane generating device for exploiting exposed combustible ice on seabed surface under environment of extremely high pressure difference Download PDFInfo
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- CN115538992A CN115538992A CN202111614091.4A CN202111614091A CN115538992A CN 115538992 A CN115538992 A CN 115538992A CN 202111614091 A CN202111614091 A CN 202111614091A CN 115538992 A CN115538992 A CN 115538992A
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- sealing cover
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0099—Equipment or details not covered by groups E21B15/00 - E21B40/00 specially adapted for drilling for or production of natural hydrate or clathrate gas reservoirs; Drilling through or monitoring of formations containing gas hydrates or clathrates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
A method for quickly opening a sealing cover in a methane generation device for exploiting a seabed surface exposed combustible ice mineral deposit under the environment of extremely high pressure difference underwater comprises the following steps: a turnover sealing hatch cover mechanism (G) of a bottom machine room is arranged above the microwave heater (R) in the rigid pipeline (4) and must be horizontally arranged across the section of the rigid pipeline (4), and the sealing hatch cover mechanism (G) is additionally arranged at a position above a water supply pressure boosting valve (9) when a special conventional water supply valve which is more suitable from outside to inside is not additionally arranged and the existing water supply pressure boosting valve (9) is used for working; and only by greatly reducing the space volume below the sealing hatch cover mechanism (G), the pressure of water bodies on the inner side and the outer side of the sealing cover (5) can be quickly balanced from the inside of the sealing hatch cover mechanism to prompt the sealing cover (5) to be opened in time, and a new batch of combustible ice fragments conveyed from the outside can enter the methane generation generating device to continue a new round of methane production.
Description
Technical Field
The invention relates to a method for quickly opening a sealing cover in a methane generation device for exploiting a bared combustible ice mineral deposit on the surface of the sea bottom under the environment of extremely high pressure difference underwater.
Background
With the huge consumption of resources, people face the huge crisis of resources in particular in the beginning of the 21 st century, the crude oil import in China is more than one hundred million tons as the energy consumption of the large country, the yield of the domestic onshore oil and gas field is reluctantly stable, and experts estimate that the large country hardly has major breakthrough in a short term. Natural gas hydrates, which are readily combustible ice, are gaining favor as an alternative energy source in all countries of the world, especially developed countries.
Taking gas hydrates formed at the sea floor as an example: at the ambient temperature of 1-20 ℃, as long as the water depth is 300 meters, namely 30 atmospheric pressures are reached, natural gas hydrate, namely a combustible ice mineral deposit, can be formed; and the environment being above the temperature or/and the environment being below the pressure, the natural gas hydrate is encouraged to decompose into methane and water.
The storage amount of combustible ice mineral deposits in the world is 2 times of the storage amount of combustible minerals such as petroleum, and the combustible ice mineral deposits can be used by global population for 1000 years; theoretical calculation, 1m 3 Can release 164m under standard conditions 3 Methane gas, while natural gas hydrate combustion produces only CO 2 And H 2 O, which belongs to an inexhaustible green clean energy.
The south China sea contains abundant combustible ice deposits on the sea bottom, however, the combustible ice deposits are not mined out like other sea areas in the world, and the main reason is that the mining cost of the combustible ice is high, about $ 200/m 3 。
Many "laboratory" methods have been developed, but these methods are in the exploration phase and are difficult to enter into practical, scalable commercial exploitation phases.
Disclosure of Invention
The purpose of the invention is: the method solves the problem that a sealing cover in a methane generation device for exploiting the exposed combustible ice deposit on the surface of the seabed can be quickly opened under the environment of extremely high pressure difference underwater
The key points of the invention are as follows:
mainly provides a technical scheme which is implemented for normally producing methane and can solve the problem of how to realize the normal methane production under the environment of extremely high water body pressure difference caused at the bottom of water.
The invention has the characteristics that:
the invention can greatly reduce the water volume with extremely large volume necessary for pressurizing through the water, thereby creating the condition for promoting pressure balance by rapid pressurization, namely creating the condition for rapidly opening the sealing cover in the underwater equipment.
Drawings
Fig. 1 illustrates the structural principle of a methanogenesis generation apparatus for fragments of a submarine combustible ice deposit.
1: an exhaust duct; 2: a water discharge pipeline; 3: a sealed methane collecting and distributing chamber (a temporary working chamber for people to enter with an oxygen cylinder); 4: a rigid conduit; 5: the sealing cover can be turned up and down; 6: mining the obtained combustible ice fragments; 7: a combustible ice fragment feed inlet; 8: a counter weight foundation with an inverted cone-shaped bottom; 9: a water supply pressure-increasing valve (provided to open the sealing cover and increase the pressure); d: a deep water conveyor belt; b: a deep submersible pump; r: a microwave heater; w: a receiving net which can vertically lift and intercept other broken miscellaneous stone blocks; g: a turning sealed cabin mechanism of the bottom machine room; dotted arrow
The flow direction of methane (gas) is indicated; solid arrow head
The flow direction of the water is indicated.
Detailed Description
In order to achieve the above object of the present invention, the following technical solutions are proposed:
the main structure of the invention is characterized in that:
the methane generating device is characterized by at least comprising a body of a methane generating device, wherein a rigid pipeline 4 is inserted from the sea level and positioned on a seabed rock stratum, the outer bottom surface of the body is provided with an inverted cone-shaped counterweight foundation 8 which can be matched with the position of a joint part of the seabed rock stratum, the lower part in the body is provided with a deep submersible pump B, a broken miscellaneous stone block collecting net W which can vertically rise to the sea level is arranged between the upper part of the deep submersible pump B and a feed inlet 7, a microwave heater R is arranged above the feed inlet 7, and a turnover sealed cabin G mechanism of a bottom machine room is arranged above the microwave heater R;
the feed port 7 is provided with a sealing cover 5 which can be opened or closed by remote control turning:
when the sealing cover 5 is opened, the feed inlet 7 can be jointed with the end part of the externally connected underwater conveyer belt D in a non-connection mode, and combustible ice fragments 6 conveyed by the underwater conveyer belt D are accurately received;
an internal remote control water supply pressure-increasing valve 9 is arranged below the water surface outside the rigid pipeline 4, and the sealing cover 5 can be opened only when the pressure of the internal water supply is increased and is consistent with the pressure of the water body outside;
a drainage pipeline 2 is arranged above the deep submersible pump B and used for externally draining the accumulated water which can be automatically drained at any time through the deep submersible pump B;
when the water body in the rigid pipeline 4 is pumped out by the deep submersible pump B, the water body is indirectly influenced by atmospheric pressure in the atmospheric space on the water surface, and the indirect influence mode is as follows:
the methane collector 3 generated in the rigid pipeline 4 is finally output from the exhaust pipeline 1 for use by people.
The quick opening method related to the sealing cover 5 of the methane generating device is set as follows:
the quick opening method of the sealing cover (5) is set, and the following setting conditions can be deduced easily according to the known knowledge:
a turnover sealing hatch cover mechanism (G) of a bottom machine room is arranged above the microwave heater (R) in the rigid pipeline (4) and is positioned at the position horizontally crossing the section of the rigid pipeline (4), and when the existing water supply pressure boosting valve (9) is used for supplying water with large flow, the sealing hatch cover mechanism (G) is additionally arranged at the position above the water supply pressure boosting valve (9) if a special conventional small-caliber water supply valve which is more suitable from the inside of the rigid pipeline (4) at the outer side is not additionally arranged for supplying water and boosting pressure;
and the remote control of the remote control sealing cover (5) to be opened in time can be realized only by greatly reducing the space volume of the pipeline below the turnover sealing hatch cover mechanism (G) in the rigid pipeline (4) after the water body pressure at the inner side and the outer side of the sealing cover (5) is quickly in a balanced state from the inside, and a new batch of combustible ice fragments conveyed from the outside are newly put into the methane generation generating device to wait for a new round of methane production process.
Claims (1)
1. A method for quickly opening a sealing cover in a methane generation device for exploiting a bared combustible ice mineral deposit on the surface of the sea floor under the environment of extremely high pressure difference under water,
it is characterized in that structurally comprises:
the machine body is composed of at least one rigid pipeline (4) which is inserted from the sea level and positioned on the seabed rock stratum, the outer bottom surface of the machine body is provided with an inverted cone-shaped counterweight foundation (8) which can be matched with the joint part of the seabed rock stratum, and the lower part in the machine body is provided with a deep submersible pump (B); a broken miscellaneous stone block collecting net (W) capable of vertically ascending to the sea level is arranged between the upper part of the deep submersible pump (B) and the feeding port (7), a microwave heater (R) is arranged above the feeding port (7), and a turning sealing hatch cover mechanism (G) of a bottom machine room is arranged above the microwave heater (R);
the feed inlet (7) is provided with a sealing cover (5) which can be opened or closed by remote control turning:
when the sealing cover (5) is opened, the feed inlet (7) and the end part of the externally connected underwater conveyer belt (D) can implement non-connection type position connection, and accurately receive combustible ice fragments (6) conveyed by the underwater conveyer belt (D);
an internal remote control water supply pressure-increasing valve (9) is arranged below the water surface at the outer side of the rigid pipeline (4), and the sealing cover (5) can be opened only when the pressure of the internal water supply is increased and is consistent with the pressure of the water body at the outer side;
a drainage pipeline (2) is arranged above the deep submersible pump (B) and is used for externally draining the accumulated water which can be automatically drained at any time through the deep submersible pump (B);
the quick opening method of the sealing cover (5) comprises the following steps:
a turnover sealing hatch cover mechanism (G) of a bottom machine room is arranged above the microwave heater (R) in the rigid pipeline (4), and is positioned at the position horizontally traversing the section of the rigid pipeline (4), and the sealing hatch cover mechanism (G) is additionally arranged at the position above a water supply pressure boosting valve (9) when the existing water supply pressure boosting valve (9) is used for supplying water with large flow without additionally arranging a special conventional small-caliber water supply valve which is more suitable from the inside of the rigid pipeline (4) at the outer side for supplying water and boosting pressure;
only by greatly reducing the space volume of the pipeline below the turnover sealing hatch cover mechanism (G) in the rigid pipeline (4), the remote control sealing cover (5) can be opened in time after the water body pressure on the inner side and the outer side of the sealing cover (5) is quickly in a balanced state from the inside of the rigid pipeline, and a new batch of combustible ice fragments are conveyed from the outside to enter the methane generation device to wait for a new methane production process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111614091.4A CN115538992A (en) | 2017-03-30 | 2017-03-30 | Method for quickly opening sealing cover in methane generating device for exploiting exposed combustible ice on seabed surface under environment of extremely high pressure difference |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111614091.4A CN115538992A (en) | 2017-03-30 | 2017-03-30 | Method for quickly opening sealing cover in methane generating device for exploiting exposed combustible ice on seabed surface under environment of extremely high pressure difference |
| CN201710230727.2A CN108661605B (en) | 2017-03-30 | 2017-03-30 | Improved A-type generating device for generating methane for fragments of seabed combustible ice mineral reserves |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710230727.2A Division CN108661605B (en) | 2017-03-30 | 2017-03-30 | Improved A-type generating device for generating methane for fragments of seabed combustible ice mineral reserves |
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| CN115538992A true CN115538992A (en) | 2022-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111607510.1A Pending CN115538990A (en) | 2017-03-30 | 2017-03-30 | Wind power generation method related to exploiting seabed surface exposed combustible ice mineral deposit methane generation device |
| CN202111607509.9A Pending CN115538989A (en) | 2017-03-30 | 2017-03-30 | Methane generation device for exploiting seabed surface exposed combustible ice mineral reserves |
| CN202111614094.8A Pending CN115538994A (en) | 2017-03-30 | 2017-03-30 | Technical requirements of deep submersible pump necessarily arranged at bottom of methane generating device for exploiting combustible ice deposit exposed on seabed surface |
| CN202111614092.9A Pending CN115538993A (en) | 2017-03-30 | 2017-03-30 | Method for arranging broken and mixed stone block collecting net vertically rising to sea level in methane generating device of seabed surface exposed combustible ice |
| CN202111418260.7A Pending CN114016975A (en) | 2017-03-30 | 2017-03-30 | Wind power generation method related to exploiting seabed surface exposed combustible ice mineral deposit methane generation device |
| CN202111614091.4A Pending CN115538992A (en) | 2017-03-30 | 2017-03-30 | Method for quickly opening sealing cover in methane generating device for exploiting exposed combustible ice on seabed surface under environment of extremely high pressure difference |
| CN201710230727.2A Expired - Fee Related CN108661605B (en) | 2017-03-30 | 2017-03-30 | Improved A-type generating device for generating methane for fragments of seabed combustible ice mineral reserves |
| CN202111418259.4A Pending CN114016974A (en) | 2017-03-30 | 2017-03-30 | Installation and construction method for exploiting seabed surface exposed combustible ice mineral methane generation device |
| CN202111607636.9A Pending CN115538991A (en) | 2017-03-30 | 2017-03-30 | Installation and construction method for exploiting seabed surface exposed combustible ice mineral methane generation device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111607510.1A Pending CN115538990A (en) | 2017-03-30 | 2017-03-30 | Wind power generation method related to exploiting seabed surface exposed combustible ice mineral deposit methane generation device |
| CN202111607509.9A Pending CN115538989A (en) | 2017-03-30 | 2017-03-30 | Methane generation device for exploiting seabed surface exposed combustible ice mineral reserves |
| CN202111614094.8A Pending CN115538994A (en) | 2017-03-30 | 2017-03-30 | Technical requirements of deep submersible pump necessarily arranged at bottom of methane generating device for exploiting combustible ice deposit exposed on seabed surface |
| CN202111614092.9A Pending CN115538993A (en) | 2017-03-30 | 2017-03-30 | Method for arranging broken and mixed stone block collecting net vertically rising to sea level in methane generating device of seabed surface exposed combustible ice |
| CN202111418260.7A Pending CN114016975A (en) | 2017-03-30 | 2017-03-30 | Wind power generation method related to exploiting seabed surface exposed combustible ice mineral deposit methane generation device |
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| CN201710230727.2A Expired - Fee Related CN108661605B (en) | 2017-03-30 | 2017-03-30 | Improved A-type generating device for generating methane for fragments of seabed combustible ice mineral reserves |
| CN202111418259.4A Pending CN114016974A (en) | 2017-03-30 | 2017-03-30 | Installation and construction method for exploiting seabed surface exposed combustible ice mineral methane generation device |
| CN202111607636.9A Pending CN115538991A (en) | 2017-03-30 | 2017-03-30 | Installation and construction method for exploiting seabed surface exposed combustible ice mineral methane generation device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115538990A (en) * | 2017-03-30 | 2022-12-30 | 中国计量大学 | Wind power generation method related to exploiting seabed surface exposed combustible ice mineral deposit methane generation device |
| CN112127850B (en) * | 2019-06-24 | 2021-12-17 | 南京延长反应技术研究院有限公司 | Green process for exploiting combustible ice |
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| NO830639L (en) * | 1983-02-23 | 1984-08-24 | Jan Egil Floeysvik | DEVICE FOR DETERMINING AND CONTROL OF A FLUID DRAWING FROM AN OIL / GAS SOURCE, SPECIFICALLY UNDER AN UNCONTROLLED Blowout |
| US6245955B1 (en) * | 1998-09-01 | 2001-06-12 | Shell Oil Company | Method for the sub-sea separation of hydrocarbon liquids from water and gases |
| AU2008305441B2 (en) * | 2007-09-25 | 2014-02-13 | Exxonmobil Upstream Research Company | Method for managing hydrates in subsea production line |
| EP2226466A1 (en) * | 2009-02-13 | 2010-09-08 | Shell Internationale Research Maatschappij B.V. | Method for producing a marketable hydrocarbon composition from a hydrate deposit buried in the waterbottom |
| CN101555797B (en) * | 2009-05-19 | 2011-08-03 | 四川大学 | Extraction device for undersea gas hydrate and extraction method thereof |
| CA3008372C (en) * | 2010-05-04 | 2021-10-19 | Oxus Recovery Solutions Inc. | Submerged hydrocarbon recovery apparatus |
| CN201953359U (en) * | 2011-02-23 | 2011-08-31 | 中国地质科学院勘探技术研究所 | Automatic exploitation system of natural gas hydrate |
| WO2012149104A2 (en) * | 2011-04-27 | 2012-11-01 | Bp Corporation North America Inc. | Methods of establishing and/or maintaining flow of hydrocarbons during subsea operations |
| CN102322264B (en) * | 2011-05-26 | 2014-07-02 | 上海交通大学 | Gas hydrate exploitation, well completion, collection and conveying platform system |
| TWI597095B (en) * | 2011-05-30 | 2017-09-01 | 蜆殼國際研究公司 | Converting an underwater methane hydrate containing deposit into a marketable product |
| CN102797441A (en) * | 2012-09-05 | 2012-11-28 | 徐中全 | Method and device for exploiting seabed combustible ice |
| CN103015959A (en) * | 2012-11-29 | 2013-04-03 | 中国科学院力学研究所 | Mechanical-thermal hydrate exploiting method |
| CN103510926B (en) * | 2013-04-15 | 2016-04-06 | 淄博高新区成大机械设计研究所 | The exploitation method of a kind of seabed combustible ice and system |
| CN103334729A (en) * | 2013-04-25 | 2013-10-02 | 李贤明 | Exploitation method and system of seabed methane hydrate |
| CN103352676B (en) * | 2013-07-08 | 2015-09-16 | 赵光书 | The quarrying apparatus of a kind of seabed combustible ice and exploitation method |
| EP2824276A1 (en) * | 2013-07-09 | 2015-01-14 | The European Union, represented by the European Commission | A device for collecting methane gas |
| CN103628844B (en) * | 2013-11-21 | 2017-07-18 | 中国海洋石油总公司 | The recovery method of the non-diagenesis formation gas hydrate of deep seafloor shallow-layer |
| CN104018815A (en) * | 2014-06-27 | 2014-09-03 | 华北水利水电大学 | Control system of exploitation process of submarine natural gas hydrate |
| CN104481467B (en) * | 2014-12-02 | 2016-09-07 | 辽宁石油化工大学 | A kind of method and apparatus exploiting seabed combustible ice |
| JP2016108774A (en) * | 2014-12-03 | 2016-06-20 | 三井造船株式会社 | Gas-hydrate recovery system, and recovery method thereof |
| CN104948143B (en) * | 2015-06-15 | 2017-06-16 | 西南石油大学 | The recovery method and its quarrying apparatus of a kind of submarine surface gas hydrates |
| CN104948144B (en) * | 2015-06-15 | 2017-08-04 | 西南石油大学 | A kind of utilization ultrasonic wave exploits the method and device of submarine surface gas hydrates |
| CN105804705B (en) * | 2016-03-24 | 2018-05-04 | 西南石油大学 | The sea-bottom natural gas collection device and method of built-in buoyancy tank helical pipe gas heating |
| CN106382237A (en) * | 2016-10-19 | 2017-02-08 | 中国计量大学 | Application method and structure of pump including immersion pump supported by air jacking seal |
| CN115538990A (en) * | 2017-03-30 | 2022-12-30 | 中国计量大学 | Wind power generation method related to exploiting seabed surface exposed combustible ice mineral deposit methane generation device |
-
2017
- 2017-03-30 CN CN202111607510.1A patent/CN115538990A/en active Pending
- 2017-03-30 CN CN202111607509.9A patent/CN115538989A/en active Pending
- 2017-03-30 CN CN202111614094.8A patent/CN115538994A/en active Pending
- 2017-03-30 CN CN202111614092.9A patent/CN115538993A/en active Pending
- 2017-03-30 CN CN202111418260.7A patent/CN114016975A/en active Pending
- 2017-03-30 CN CN202111614091.4A patent/CN115538992A/en active Pending
- 2017-03-30 CN CN201710230727.2A patent/CN108661605B/en not_active Expired - Fee Related
- 2017-03-30 CN CN202111418259.4A patent/CN114016974A/en active Pending
- 2017-03-30 CN CN202111607636.9A patent/CN115538991A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN115538991A (en) | 2022-12-30 |
| CN108661605B (en) | 2022-01-18 |
| CN108661605A (en) | 2018-10-16 |
| CN114016975A (en) | 2022-02-08 |
| CN115538993A (en) | 2022-12-30 |
| CN115538989A (en) | 2022-12-30 |
| CN115538994A (en) | 2022-12-30 |
| CN114016974A (en) | 2022-02-08 |
| CN115538990A (en) | 2022-12-30 |
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