CN216077068U - Natural gas hydrate exploitation device based on solar thermochemical energy storage technology - Google Patents
Natural gas hydrate exploitation device based on solar thermochemical energy storage technology Download PDFInfo
- Publication number
- CN216077068U CN216077068U CN202121728803.0U CN202121728803U CN216077068U CN 216077068 U CN216077068 U CN 216077068U CN 202121728803 U CN202121728803 U CN 202121728803U CN 216077068 U CN216077068 U CN 216077068U
- Authority
- CN
- China
- Prior art keywords
- natural gas
- gas hydrate
- solar
- energy storage
- well
- 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.)
- Active
Links
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a natural gas hydrate exploitation device based on a solar thermochemical energy storage technology. The method comprises the following steps: an ocean gas hydrate production system comprises a plurality of injection wells and extraction wells which extend to a gas hydrate reservoir, wherein the injection wells comprise vertical injection well sections and horizontal injection well sections positioned in the gas hydrate reservoir, and the extraction wells comprise vertical extraction well sections and horizontal extraction well sections positioned in the gas hydrate reservoir. The utility model also discloses a natural gas hydrate exploitation method based on the solar thermochemical energy storage technology. The method and the system of the utility model are adopted to mine the hydrate, fully utilize abundant renewable solar energy resources in sea areas, and combine the thermochemical energy storage technology, effectively avoid the loss in the heat transportation process, greatly reduce the energy cost investment in the exploitation of the hydrate heat injection method, and are suitable for the large-scale exploitation of natural gas hydrate resources.
Description
Technical Field
The utility model relates to the field of exploitation of natural gas hydrates, in particular to a natural gas hydrate exploitation device based on a solar thermochemical energy storage technology.
Background
The natural gas hydrate is a non-stoichiometric cage-type crystal compound formed by gas molecules such as methane, ethane, carbon dioxide, hydrogen sulfide and the like and water molecules under specific conditions, and widely exists in sediment porous medium pores of seabed land slopes and land permafrost zones. As a clean and efficient energy source, the natural gas hydrate has wide global distribution and large resource amount, and the carbon content of the natural gas hydrate is about twice of that of the existing fossil fuel.
The exploitation of natural gas hydrate is to break the thermodynamic stability of the natural gas hydrate under the original condition so as to achieve the purpose of decomposing to generate natural gas. The common means mainly include heat injection method, pressure reduction method, chemical reagent injection method and CO2Substitution or a combination of the two.
The conventional heat injection method is mainly characterized in that hot water, steam, hot brine or other hot fluids are pumped into a natural gas hydrate reservoir from the ground through a high-pressure pump, so that the temperature of the hydrate reservoir is increased, and the purpose of decomposing the natural gas hydrate is achieved. Due to the fact that the transport distance is long and the temperature of seawater is low, the problems that heat transport loss is serious and heat utilization efficiency is low exist.
The utility model provides a natural gas hydrate exploitation system and method based on a solar thermochemical energy storage technology, aiming at the problems of large heat loss and low utilization rate of natural gas hydrate exploitation by a traditional heat injection method.
SUMMERY OF THE UTILITY MODEL
The utility model provides a natural gas hydrate exploitation system and method based on a solar thermochemical energy storage technology, and aims to solve the problems that a large amount of energy is consumed for exploiting natural gas hydrates by a traditional heat injection method, and heat loss is serious in a long-distance transportation process.
The utility model is realized by adopting the following method:
a natural gas hydrate exploitation device based on solar thermochemical energy storage technology comprises: the system comprises an ocean natural gas hydrate exploitation system, a solar thermochemical energy storage system and a gas-liquid separator;
a marine natural gas hydrate production system comprising an injection well and a production well extending to a natural gas hydrate reservoir, the injection well comprising an injection well vertical section and an injection well horizontal section located in the natural gas hydrate reservoir, the injection well vertical section and the injection well horizontal section being connected; the production well comprises a vertical section of the production well and a horizontal section of the production well positioned in the natural gas hydrate reservoir, and the vertical section of the production well is connected with the horizontal section of the production well or the horizontal section of the injection well;
the solar thermochemical energy storage system comprises a solar pyrolytic decomposition reactor, a solar heat exchanger, a separation storage and a thermochemical exothermic reactor which are arranged on an offshore floating platform, and is used for providing heat required by exploitation for a natural gas hydrate storage layer; the solar thermal decomposition reactor is sequentially connected with the solar heat exchanger and the separation storage; the lower outlet of the separation storage is connected with a solar heat exchanger; the separation reservoir is connected with an injection well wellhead; the thermochemical exothermic reactor is arranged in a horizontal section of an injection well;
the gas-liquid separator is arranged on the offshore platform, and the tail end of the gas-liquid separator is connected with the wellhead of the natural gas hydrate production well; and the wellhead of the natural gas hydrate production well is connected with the vertical section of the production well.
Furthermore, a gas-liquid collecting sleeve is arranged at the horizontal section of the production well and is used for collecting methane gas generated by decomposition.
Further, the working medium in the solar thermochemical energy storage system is ammonia, metal hydride, metal oxide, hydrated salt or hydroxide.
Further, the gas-liquid separator is arranged on the offshore floating platform and comprises a feeding hole, an air outlet end and an liquid outlet end.
Furthermore, the thermochemical exothermic reactor is arranged in the horizontal section of the injection well and comprises a catalyst system, an electric heating device, a temperature monitoring device and an enhanced heat transfer device, wherein the catalyst system is positioned in the horizontal well section, the electric heating device is arranged on the horizontal well section, the enhanced heat transfer device extends into the stratum from the inside to the outside in a radiation mode, and the temperature monitoring device is arranged on the catalyst system and the enhanced heat transfer device.
Further, the production well horizontal section is located above the production well horizontal section and adjacent to the overburden.
Further, the overburden is a non-permeable formation.
Further, the utility model also comprises a drying purifier; the drying purifier is positioned on a pipeline between a wellhead of the natural gas hydrate production well and the separation storage device.
A natural gas hydrate production method using the production system, comprising the steps of:
mining in an initial stage by adopting a depressurization mode, decomposing hydrates in the natural gas hydrate reservoir layer to generate natural gas by depressurization, enabling the natural gas carrying liquid components to flow to a horizontal section of a production well, and then conveying the natural gas to a gas-liquid separator through a vertical section of the production well and a wellhead of the production well, thereby obtaining the required product methane;
when the pressure of a natural gas hydrate reservoir is reduced to be below 15% of the phase equilibrium pressure of the hydrate corresponding to the reservoir temperature, a solar thermochemical energy storage system is started to supply heat, namely the solar thermolysis reactor absorbs solar energy to enable a thermochemical energy storage working medium to be heated and decomposed, the obtained product and a backflow medium perform heat exchange in a solar heat exchanger, and then the product is conveyed to a thermochemical exothermic reactor in the horizontal section of an injection well to perform chemical reaction through a separation storage device, the wellhead of the injection well and the vertical section of the injection well, and the heat is released to promote the hydrate to be decomposed;
after the solar thermochemical energy storage working medium is subjected to chemical reaction in the thermochemical exothermic reactor and releases heat, a reaction product is conveyed to the drying purifier through the vertical section of the extraction well and the wellhead of the extraction well, and the reaction product is refluxed to the solar pyrolytic reactor through the separation storage device and the solar heat exchanger in sequence after being purified to complete circulation;
heating and decomposing hydrates in the natural gas hydrate storage layer to generate natural gas, allowing the natural gas carrying liquid components to flow to a horizontal section of the production well, and conveying the natural gas to a gas-liquid separator through a vertical section of the production well and a wellhead of the production well, so as to obtain a required product methane gas;
preferably, the temperature of the thermochemical exothermic reactor during the chemical reaction is 300 to 800 ℃.
Compared with the prior art, the utility model has the following advantages:
(1) the high-quality natural gas is mined by utilizing the low-quality solar energy in the sea area, so that the energy utilization rate is obviously improved;
(2) the solar energy resource in the sea area is rich and renewable, and can continuously provide heat for the exploitation of the seabed natural gas hydrate by the heat injection method, so that the production cost is reduced;
(3) the thermochemical energy storage technology can avoid the problem of serious heat loss when a heat-carrying working medium is transported for a long distance, and the utilization efficiency of energy is improved.
Drawings
FIG. 1 is a schematic diagram of a natural gas hydrate mining system based on solar thermochemical energy storage technology according to the utility model;
FIG. 2 is a schematic diagram of the configuration of a thermal exothermic reactor according to the present invention;
FIG. 3 is a schematic side view of a thermal exothermic reactor according to the present invention;
fig. 4 is a graph of the temperatures in the components 1, 2, 3, 4 of the solar thermo-chemical energy storage unit of example 3, the experimental time being measured from 9 a.m.: 00 to 16 in the afternoon: 00, monitoring the obtained temperature situation graph.
Shown in the figure are: the system comprises a 1-solar thermal decomposer, a 2-solar thermal exchanger, a 3-separation storage, a 4-pump, a 5-injection well mouth, a 6-injection well vertical section, a 7-upper covering layer, an 8-natural gas hydrate storage layer, a 9-lower covering layer, a 10-injection well horizontal section, a 11-thermal chemical exothermic reactor, a 12-production well vertical section, a 13-production well horizontal section, a 14-production well mouth, a 15-gas-liquid separator, a 16-offshore floating platform, a 17-drying purifier, a 18-feeding hole, a 19-gas outlet end, a 20-liquid outlet end, a 21-catalyst system, a 22-electric heating device, a 23-temperature monitoring device and a 24-enhanced heat transfer device.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.
Example 1
As shown in fig. 1, a natural gas hydrate mining system based on a solar thermochemical energy storage technology is characterized by comprising: an ocean natural gas hydrate exploitation system, a solar thermochemical energy storage system and a gas-liquid separator 15; a marine natural gas hydrate production system comprising an injection well and a production well extending to a natural gas hydrate reservoir 8, the injection well comprising an injection well vertical section 6 and an injection well horizontal section 10 located in the natural gas hydrate reservoir, the injection well vertical section 6 and the injection well horizontal section 10 being connected; the production well comprises a production well vertical section 12 and a production well horizontal section 13 positioned in the natural gas hydrate reservoir stratum, and the production well vertical section 12 is connected with the production well horizontal section 13 or the injection well horizontal section 10; the solar thermochemical energy storage system comprises a solar pyrolytic decomposition reactor 1, a solar heat exchanger 2, a separation storage 3 and a thermochemical exothermic reactor 11 which are arranged on an offshore floating platform 16 and are used for providing heat required by exploitation for a natural gas hydrate storage layer 8; the solar thermal decomposition reactor 1 is sequentially connected with a solar heat exchanger 2 and a separation storage 3; the lower outlet of the separation reservoir 3 is connected with the solar heat exchanger 2; the separation reservoir 3 is connected to an injection well wellhead 5; the thermochemical exothermic reactor 11 is arranged in an injection well horizontal section 10; the gas-liquid separator 15 is arranged on the offshore platform 16, and the tail end of the gas-liquid separator is connected with the wellhead 14 of the natural gas hydrate production well; the natural gas hydrate production well wellhead 14 is connected with the production well vertical section 12. And the horizontal section 13 of the production well is provided with a gas-liquid collecting sleeve for collecting methane gas generated by decomposition. The working medium in the solar thermochemical energy storage system is ammonia, metal hydride, metal oxide, hydrated salt or hydroxide. The gas-liquid separator 15 is arranged on an offshore floating platform 16 and comprises a feeding port 18, a gas outlet end 19 and a liquid outlet end 20. The thermochemical exothermic reactor 11 is arranged in the horizontal section 10 of the injection well, and comprises a catalyst system 21, an electric heating device 22, a temperature monitoring device 23 and an enhanced heat transfer device 24, wherein the catalyst system 21 is positioned inside the horizontal well section, the electric heating device 22 is arranged (in the embodiment, heating is realized by adopting a resistance wire heating element or an electric microwave conversion element) on the horizontal well section, the enhanced heat transfer device 24 extends into the formation from inside to outside in a radiation manner, and the temperature monitoring device 23 is arranged on the catalyst system and the enhanced heat transfer device. The production well horizontal section 13 is located above the injection well horizontal section 10 and adjacent to the overburden 7. The overburden 7 is a non-permeable formation. The present embodiment further includes a dry cleaner 17; the dry scrubber 17 is located on the pipeline between the natural gas hydrate production well wellhead 14 and the separation reservoir 3.
Example 2
A natural gas hydrate exploitation method based on a solar thermochemical energy storage technology comprises the following steps:
s1, exploiting in a depressurization mode at the initial stage, decomposing the hydrate in the natural gas hydrate reservoir stratum 8 to generate natural gas in a depressurization mode, enabling the natural gas carrying liquid components to flow to the horizontal section 13 of the production well, and then conveying the natural gas to the gas-liquid separator 15 through the vertical section 12 of the production well and the wellhead 14 of the production well, so as to obtain the required product methane gas;
s2, when the pressure of the natural gas hydrate reservoir 8 is reduced to be below 15% of the phase equilibrium pressure of the hydrate corresponding to the reservoir temperature, starting a solar thermochemical energy storage system to supply heat, namely absorbing solar energy by the solar thermolysis reactor 1 to enable a thermochemical energy storage working medium to be heated and decomposed, carrying out heat exchange on the obtained product and a backflow medium in a solar heat exchanger 2, then conveying the product to a thermochemical exothermic reactor 11 in an injection well horizontal section 10 to carry out chemical reaction through a separation storage device 3, an injection well mouth 5 and an injection well vertical section 6, and releasing heat to promote the hydrate to be decomposed;
s3, after the solar thermochemical energy storage working medium is subjected to chemical reaction in the thermochemical exothermic reactor 11 and releases heat, the reaction product is conveyed to the drying purifier 17 through the vertical section 12 of the extraction well and the wellhead 14 of the extraction well, and after purification treatment, the reaction product sequentially flows back to the solar pyrolytic reactor 1 through the separation storage device 3 and the solar heat exchanger 2 to complete circulation;
s4, generating natural gas by heating and decomposing the hydrate in the natural gas hydrate reservoir stratum 8, enabling the natural gas carrying liquid components to flow to the horizontal section 13 of the production well, and conveying the natural gas to the gas-liquid separator 15 through the vertical section 12 of the production well and the wellhead 14 of the production well, so that the required product methane is obtained.
Example 3
A natural gas hydrate exploitation method based on a solar thermochemical energy storage technology comprises the following steps:
in this embodiment, the temperature change of the solar thermochemical energy storage unit is taken as an example, and the morning 9 of the daytime period is selected: 00 to 16 in the afternoon: 00 continuous experiments are carried out, the temperature change condition is recorded, and the recorded temperature points comprise the ambient temperature and the temperature conditions 1, 2, 3 and 4 in the attached drawings of the patent specification.
Connect good solar thermal chemistry energy storage unit part 1, 2, 3, 4 in order, fill 100 ml thermochemical energy storage working medium, treat that the operating mode is stable, continuous monitoring ambient temperature, the temperature in solar thermal chemistry energy storage unit part 1, 2, 3, 4, the experimental time by 9 in the morning: 00 to 16 in the afternoon: 00, the temperature profile obtained by monitoring is shown in FIG. 4.
Example 4
A natural gas hydrate exploitation method based on a solar thermochemical energy storage technology comprises the following steps:
in this embodiment, for example, the natural gas hydrate is decomposed by heat released by a solar thermochemical energy storage system, a high-pressure reaction kettle (with a volume of 665ml, an inner diameter of 46ml and a height of 400mm) and quartz sand are used to simulate a seabed natural gas hydrate reservoir to generate the natural gas hydrate, and then heat is injected to promote the hydrate decomposition, so as to simulate a solar thermochemical energy storage system to extract the natural gas hydrate.
Weighing 300g of quartz sand and 50ml of deionized water, placing the quartz sand and the deionized water into a high-pressure reaction kettle, connecting a methane gas cylinder, placing the quartz sand and the deionized water into a low-temperature water bath, generating natural gas hydrates with different saturation degrees by controlling the methane pressure, then injecting hot water, simulating the energy supply of a solar thermochemical reaction system, promoting the decomposition of the hydrates, monitoring the temperature and pressure change condition in the reaction process, and finally summarizing to obtain the decomposition rate of the natural gas hydrates, as shown in the following table.
The natural gas hydrate exploitation system and the method based on the solar thermochemical energy storage technology can make full use of abundant renewable solar energy resources in sea areas, generate heat for exploitation by a hydrate heat injection method, and can avoid the problem of serious heat loss when a heat-carrying working medium is transported in a long distance by combining the thermochemical energy storage technology, so that the utilization efficiency of energy is obviously improved, the exploitation cost is greatly reduced, the system is suitable for large-scale exploitation of natural gas hydrates, and the system is simple, low in cost and convenient to construct.
The scope of protection of the utility model is not limited to the embodiments described above, and it is obvious that a person skilled in the art can make modifications to the utility model without departing from the scope of design of the utility model. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (8)
1. A natural gas hydrate exploitation device based on solar thermochemical energy storage technology is characterized by comprising: the system comprises an ocean natural gas hydrate exploitation system, a solar thermochemical energy storage system and a gas-liquid separator (15);
a marine natural gas hydrate production system comprising an injection well and a production well extending to a natural gas hydrate reservoir (8), the injection well comprising an injection well vertical section (6) and an injection well horizontal section (10) located in the natural gas hydrate reservoir, the injection well vertical section (6) and the injection well horizontal section (10) being connected; the production well comprises a production well vertical section (12) and a production well horizontal section (13) positioned in the natural gas hydrate reservoir stratum, and the production well vertical section (12) is connected with the production well horizontal section (13) or the injection well horizontal section (10);
the solar thermochemical energy storage system comprises a solar pyrolytic decomposition reactor (1), a solar heat exchanger (2), a separation storage device (3) and a thermochemical exothermic reactor (11) which are arranged on an offshore floating platform (16), and is used for providing heat required by exploitation for a natural gas hydrate storage layer (8); the solar thermal decomposition reactor (1) is sequentially connected with the solar heat exchanger (2) and the separation storage (3); the lower outlet of the separation storage (3) is connected with the solar heat exchanger (2); the separation reservoir (3) is connected with an injection well wellhead (5); the thermochemical exothermic reactor (11) is arranged in an injection well horizontal section (10);
the gas-liquid separator (15) is arranged on the offshore platform (16) and the tail end of the gas-liquid separator is connected with a wellhead (14) of the natural gas hydrate production well; and the wellhead (14) of the natural gas hydrate production well is connected with the vertical section (12) of the production well.
2. The natural gas hydrate exploitation device based on solar thermochemical energy storage technology of claim 1, wherein the horizontal section (13) of the exploitation well is provided with a gas-liquid collection casing for collecting methane gas generated by decomposition.
3. A natural gas hydrate mining device based on solar thermochemical energy storage technology as defined in claim 1 wherein the working medium in the solar thermochemical energy storage system is ammonia, metal hydride, metal oxide, hydrated salt or hydroxide.
4. The solar thermochemical energy storage technology-based natural gas hydrate production device according to claim 1, wherein the gas-liquid separator (15) is arranged on the offshore floating platform (16) and comprises a feeding port (18), a gas outlet end (19) and a liquid outlet end (20).
5. The natural gas hydrate exploitation device based on solar thermochemical energy storage technology of claim 1, wherein the thermochemical exothermic reactor (11) is arranged in the horizontal section (10) of the injection well, and comprises a catalyst system (21), an electric heating device (22), a temperature monitoring device (23) and an enhanced heat transfer device (24), wherein the catalyst system (21) is arranged in the horizontal well section, the electric heating device (22) is arranged on the horizontal well section, the enhanced heat transfer device (24) extends into the formation from the horizontal interior to the outside in a radiation manner, and the temperature monitoring device (23) is arranged on the catalyst system and the enhanced heat transfer device.
6. Solar thermo-chemical energy storage technology based natural gas hydrate production device according to claim 1, characterized in that the production well horizontal section (13) is located above the injection well horizontal section (10) and close to the overburden (7).
7. The solar thermo-chemical energy storage technology based natural gas hydrate production device according to claim 6, characterized in that the overburden (7) is an impermeable formation.
8. The solar thermal chemical energy storage technology based natural gas hydrate mining device according to claim 1, characterized by further comprising a dry scrubber (17); the drying purifier (17) is positioned on a pipeline between a natural gas hydrate production well wellhead (14) and the separation storage device (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121728803.0U CN216077068U (en) | 2021-07-27 | 2021-07-27 | Natural gas hydrate exploitation device based on solar thermochemical energy storage technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121728803.0U CN216077068U (en) | 2021-07-27 | 2021-07-27 | Natural gas hydrate exploitation device based on solar thermochemical energy storage technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216077068U true CN216077068U (en) | 2022-03-18 |
Family
ID=80666691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121728803.0U Active CN216077068U (en) | 2021-07-27 | 2021-07-27 | Natural gas hydrate exploitation device based on solar thermochemical energy storage technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216077068U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586014A (en) * | 2021-07-27 | 2021-11-02 | 华南理工大学 | Natural gas hydrate exploitation method and device based on heat pipe technology |
-
2021
- 2021-07-27 CN CN202121728803.0U patent/CN216077068U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586014A (en) * | 2021-07-27 | 2021-11-02 | 华南理工大学 | Natural gas hydrate exploitation method and device based on heat pipe technology |
| CN113586014B (en) * | 2021-07-27 | 2024-03-29 | 华南理工大学 | Natural gas hydrate exploitation method and device based on heat pipe technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102704894B (en) | In-situ submarine natural gas hydrate exploiting device and method thereof | |
| US10767904B2 (en) | Method for utilizing the inner energy of an aquifer fluid in a geothermal plant | |
| US9394169B2 (en) | Gas hydrate conversion system for harvesting hydrocarbon hydrate deposits | |
| CN108005618A (en) | A kind of gas hydrate exploitation device and method based on solar energy-sea water source heat pump combined heat technology | |
| RU2162991C2 (en) | Geothermal system for generation of electric power | |
| US10267129B1 (en) | Homocentric squares-shaped well structure for marine hydrate reserve recovery utilizing geothermal heat and method thereof | |
| EP2567066A2 (en) | Gas hydrate conversion system for harvesting hydrocarbon hydrate deposits | |
| JPH11508342A (en) | Geothermal power generation system | |
| CN101016841A (en) | Method for exploiting natural gas hydrates and device thereof | |
| JO2538B1 (en) | Method And Apparatus For Capture And Sequester of Carbon Dioxide and Extraction Of energy From Large Land Masses During And after Extraction of Hydrocarbon Fuels Or Contaminants Using energy And Critical Fluids . | |
| CN207829866U (en) | Gas hydrate exploitation device based on solar energy-seawater energy combined heat | |
| CN111852407B (en) | Heat shock method hydrate exploitation device based on solar absorption heat pump | |
| CN216077068U (en) | Natural gas hydrate exploitation device based on solar thermochemical energy storage technology | |
| CN105545270A (en) | Natural gas hydrate exploitation method and device adopting in-situ combustion method | |
| CN101915075B (en) | Gas hydrate mined by adopting low-temperature solid oxide fuel cell method and device thereof | |
| CN109882133A (en) | A kind of device and method using discarded high temperature and pressure gas reservoir exploitation gas hydrates | |
| CN108035699A (en) | A kind of system and method using seabed geothermal energy in-situ retorting gas hydrates | |
| CN111608618B (en) | Low-carbon ocean hydrate exploitation and power generation utilization system | |
| CN113586014B (en) | Natural gas hydrate exploitation method and device based on heat pipe technology | |
| CN109779574B (en) | Natural gas hydrate exploitation system and method based on wind power compensation | |
| CN204729075U (en) | A kind of petroleum thermal recovery system | |
| CN109458159B (en) | System and method for exploiting sea hydrate by thermoelectric power generation thermal shock method | |
| CN109736754A (en) | A kind of device and method using hot dry rock exploitation of gas hydrate | |
| CN212614648U (en) | Novel natural gas hydrate developing device | |
| CN113818842A (en) | Shale gas high-efficiency exploitation, low-temperature hydrogen production and waste gas utilization integrated method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |