CN115538991A - Installation and construction method for exploiting seabed surface exposed combustible ice mineral methane generation device - Google Patents
Installation and construction method for exploiting seabed surface exposed combustible ice mineral methane generation device Download PDFInfo
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- CN115538991A CN115538991A CN202111607636.9A CN202111607636A CN115538991A CN 115538991 A CN115538991 A CN 115538991A CN 202111607636 A CN202111607636 A CN 202111607636A CN 115538991 A CN115538991 A CN 115538991A
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- Prior art keywords
- methane
- generating device
- water
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- combustible ice
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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 mounting construction method of a methane generation device for exploiting a seabed surface exposed combustible ice mineral deposit comprises the following steps: consists of a bottom-sealed rigid pipe (4) inserted into the submarine rock from the sea level, and requires: the diameter of the pump can be placed into a deep submersible pump (B) positioned in a bottom sealing position, the lower part of the pump is provided with a combustible ice fragment feeding hole (7) which can be connected with the end part of an underwater conveying belt (D), and the installation and construction method comprises the following steps: arranging an inverted cone-shaped hole which can be matched with an inverted cone-shaped foundation (8) of a methane generation generating device on a seabed rock stratum by a drilling machine; then the methane generating device is hung into the position of the inverted cone-shaped hole matched with the methane generating device in the water bottom, the methane generating device is hung into the water bottom from the water surface, a rigid pipeline (4) is communicated from the top of the methane generating device to a methane collecting and distributing chamber (3) on the water surface, and an exhaust pipeline (1) and a drainage pipeline (2) are installed. Its setup is similar to land opencast coal mining, and at present, all core technology civilians involving deep diving equipment (at least one year of continuous operation) are at a fully resolved level.
Description
Technical Field
The invention relates to an installation and construction method for exploiting a seabed surface exposed combustible ice ore deposit methane generating device.
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 countries throughout the world, particularly in developed countries.
Taking natural gas hydrates formed on the seabed as an example: when the water depth is 300 meters at the ambient temperature of 1-20 ℃, the natural gas hydrate, namely the combustible ice deposit, can be formed as long as the water depth reaches 30 atmospheric pressures; 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 in the seabed, however, the combustible ice deposits are not exploited as in other sea areas in the world, and the main reason is that the exploitation 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 application method of the methane generation device for exploiting the exposed combustible ice deposits on the surface of the seabed is provided.
The key points of the invention are as follows:
mainly provides a using method in the process of continuously producing methane in batches in underwater equipment, and relates to a problem of coordination of related matters of electromechanical measures on a structure when the position of the bottom of a rigid pipeline in an underwater container is in various events.
The invention has the characteristics that:
because the invention can harmonize the electromechanical measures of relevant equipment matched with the methane production process, the invention can create conditions for smoothly separating the methane from the fragments of the naked combustible ice mineral deposit on site.
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 capable of vertically lifting and intercepting other crushed and miscellaneous stone blocks; g: a sealed cabin turning 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 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 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 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 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 one atmospheric pressure in the atmospheric space on the water surface, and the indirect influence mode is as follows:
the methane collecting and distributing chamber 3 formed in the rigid pipeline 4 is finally output from the exhaust pipeline 1 for use by people.
The installation construction method of the invention comprises the following steps:
firstly, arranging an inverted cone-shaped hole which can be matched on an inverted cone-shaped foundation 8 of a methane generation generating device on a submarine rock stratum by a drilling machine;
then, the methane generation generating device is hoisted from the water surface to the position of the inverted cone-shaped hole matched with the methane generation generating device on the water bottom, and the process comprises the following steps: a rigid pipeline 4 is communicated from the top of the methanogenesis generating device to the water surface;
finally, the arrangement of the methane collecting and distributing chamber 3 above the water surface, the exhaust pipeline 1 and the drainage pipeline 2 is completed;
the vertical drainage pipe part of the drainage pipeline 2 at the vertical section part of the seabed passing through the position of the turnover sealing hatch cover mechanism G penetrates out of the rigid pipeline 4 and is connected with the outside of the rigid pipeline in an engineering structure mode of detour local design of the drainage pipeline 2;
the methane collecting and distributing chamber 3 takes into account the working condition of workers carrying oxygen bottles;
the joint of the rigid pipeline 4 allows the external water body to leak inwards, but the lowest level of the bottom in the methane generating device can be well controlled as long as the deep submersible pump B is used for periodically producing in batches, namely separating combustible ice into methane and water in batches.
Claims (1)
1. An installation and construction method for exploiting a submarine surface exposed combustible ice mineral methane generating device,
the method is characterized in that:
the structure comprises the following components:
the underwater deep submersible pump is characterized by comprising a machine body which is formed by at least one rigid pipeline (4) inserted from the sea level and positioned on a seabed rock stratum, wherein a reverse-cone-shaped counterweight foundation (8) which can be matched with the joint part of the seabed rock stratum is arranged on the outer bottom surface of the machine body, and a deep submersible pump (B) is positioned at the inner lower part of the machine body; 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 boosting 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 boosted 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 accumulated water which can be automatically drained at any time through the deep submersible pump (B);
(II) the installation construction method comprises the following steps:
firstly, arranging an inverted cone-shaped hole which can be matched on an inverted cone-shaped foundation (8) of a methane generation generating device on a submarine rock stratum by a drilling machine;
then, the position of the inverted cone-shaped hole matched with the methane generating device is hoisted into the water bottom from the water surface, and the position of the methane generating device hoisted into the water bottom from the water surface comprises the following steps: connecting a rigid pipeline (4) from the top of the methane generation generating device to the water surface;
finally, the installation of the methane collecting and distributing chamber (3) above the water surface, the exhaust pipeline (1) and the drainage pipeline (2) is completed;
the vertical pipe part of the drainage pipeline (2) at the vertical section part of the seabed passes through the turning sealing hatch cover mechanism (G) and penetrates out of the rigid pipeline (4), and the drainage pipeline (2) is connected outside the rigid pipeline in an engineering structure mode of bypassing local design;
the methane collecting and distributing chamber (3) takes into account the condition that workers carrying oxygen bottles enter the working chamber;
the joint of the rigid pipeline (4) allows external water bodies to leak inwards, but the deep submersible pump (B) can control the lowest level of the bottom in the methane generating and generating device in the periodic batch production process, namely the batch separation process of combustible ice into methane and water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111607636.9A CN115538991A (en) | 2017-03-30 | 2017-03-30 | Installation and construction method for exploiting seabed surface exposed combustible ice mineral methane generation device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
| CN202111607636.9A CN115538991A (en) | 2017-03-30 | 2017-03-30 | Installation and construction method for exploiting seabed surface exposed combustible ice mineral methane generation device |
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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| Publication Number | Publication Date |
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| CN115538991A true CN115538991A (en) | 2022-12-30 |
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Family Applications (9)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Family Applications Before (8)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
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| CN (9) | CN115538990A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016974A (en) * | 2017-03-30 | 2022-02-08 | 梁嘉麟 | Installation and construction method for exploiting seabed surface exposed combustible ice mineral methane generation device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| 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 |
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| CN102797441A (en) * | 2012-09-05 | 2012-11-28 | 徐中全 | Method and device for exploiting seabed combustible ice |
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| 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 |
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| 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
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016974A (en) * | 2017-03-30 | 2022-02-08 | 梁嘉麟 | Installation and construction method for exploiting seabed surface exposed combustible ice mineral methane generation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108661605B (en) | 2022-01-18 |
| CN108661605A (en) | 2018-10-16 |
| CN114016975A (en) | 2022-02-08 |
| CN115538993A (en) | 2022-12-30 |
| CN115538992A (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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