CN101240700B - Free gas layer-containing natural gas hydrate mining simulator - Google Patents
Free gas layer-containing natural gas hydrate mining simulator Download PDFInfo
- Publication number
- CN101240700B CN101240700B CN2008101016209A CN200810101620A CN101240700B CN 101240700 B CN101240700 B CN 101240700B CN 2008101016209 A CN2008101016209 A CN 2008101016209A CN 200810101620 A CN200810101620 A CN 200810101620A CN 101240700 B CN101240700 B CN 101240700B
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- Prior art keywords
- gas
- natural gas
- still
- bomb
- free
- Prior art date
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- 239000007789 gas Substances 0.000 title claims abstract description 118
- 238000005065 mining Methods 0.000 title abstract description 6
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 title abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 90
- 239000003345 natural gas Substances 0.000 claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 claims abstract description 40
- 239000000203 mixture Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004576 sand Substances 0.000 claims abstract description 6
- 150000004677 hydrates Chemical class 0.000 claims description 25
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 150000004682 monohydrates Chemical class 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 238000004088 simulation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000021321 essential mineral Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a gas hydrate mining analog equipment with free gas blanket, characterized in that: it includes at least a free gas kettle and a hydrate reaction kettle connected with a pneumatic valve, the free gas kettle and the hydrate reaction kettle connect natural gas cylinder by air duct; The hydrate reaction kettle is filled with deposited matter and mixture with saturated water, a gas tube traverses said mixture and inserts into the hydrate reaction kettle. The natural gas cylinder may be one or two, and ingredient of the natural gas cylinders may be identical or different. The deposit can be sand. The device of the present invention has the advantage of equipment simple, operations convenient, analog accurate, and can be applied to simulated experiment of hydrate mining technology with free gas.
Description
Technical field
The present invention relates to a kind of natural gas extraction device, particularly about a kind of exploitation simulator that contains the gas hydrates of free gas-bearing formation.
Background technology
Gas hydrates are found to be present in permafrost area and seabed widely at present.Its content is estimated to be equivalent to the whole world twice of essential mineral (oil, coal, natural gas) phosphorus content about 2000 tcms.Gas hydrates have have a very wide distribution, characteristics such as the storage scale is big, energy density height, be considered to one of potential new forms of energy of 21 century.Development and utilization gas hydrates resource has become the task of top priority of national governments at energy field.
The exploitation of gas hydrates analogue technique has multiple, and wherein, the most frequently used is a kind of long tube formula exploitation of gas hydrates analogue means (as shown in Figure 1).In this device, at first in a high pressure resistant pipe 10, insert deposit, feed water then, make water occupy space between the grains of sand, form mixture 20, end from high pressure resistant pipe 10 feeds natural gas 30 then, by reducing the temperature of whole high pressure resistant pipe 10, makes water and natural gas carry out water and reaction generation gas hydrates 40, afterwards, reduce pressure from the tracheae 50 of getting that is connected with high pressure resistant pipe 10 other ends, gas hydrates 40 are taken out, carry out the hydrate simulation mining thus.
Yet in fact, all there is free gas in the bottom of most of hydrates, and this just needs to simulate the situation that free gas is arranged under hydrate layer, and above system can not have the situation of free gas to simulate to the hydrate bottom.Therefore, need provide a kind of equipment simple, easy to operate, can accurately simulate the simulation mining device that free gas exists the gas hydrates of situation to hide.
Summary of the invention
At the problems referred to above, the objective of the invention is to propose a kind of exploitation of gas hydrates analogue means that contains free gas-bearing formation.
For achieving the above object, the present invention takes following technical scheme: a kind of exploitation of gas hydrates analogue means that contains free gas-bearing formation, it is characterized in that: it comprises a free gas still and the monohydrate reactor that connects by at least one air pressure valve, and described free gas still is connected the natural gas gas bomb by wireway respectively with the hydrate reaction still; Be filled with the mixture that comprises deposit and saturation water in described hydrate reaction still, one gets tracheae passes described mixture and plugs in the described hydrate reaction still.
Described natural gas gas bomb is one, and described free gas still is connected described natural gas gas bomb by wireway respectively with the hydrate reaction still.
Described natural gas gas bomb is two, and the gas component in described two natural gas gas bombs is identical, and described free gas still is connected a natural gas gas bomb by wireway separately with the hydrate reaction still.
Be two kinds of gas components in described two natural gas gas bombs, described free gas still is connected one of them natural gas gas bomb by a wireway respectively with the hydrate reaction still.
Be two kinds of gas components in described two natural gas gas bombs, described free gas still is connected one of them natural gas gas bomb by a wireway respectively with the hydrate reaction still, connect another natural gas gas bomb by another wireway respectively simultaneously, and be respectively arranged with breather valve on each described wireway.
Deposit in the described hydrate reaction still is a sand.
The present invention is owing to take above technical scheme, it has the following advantages: 1, the present invention is provided with free gas still and two kinds of devices of hydrate reaction still of each self-contained free gas and hydrate, and then connection work, can accurately simulate the exploitation that free gas exists the gas hydrates of situation to hide.2, the present invention has been connected some air pressure valves between two kinds of devices of free gas still and hydrate reaction still, makes free gas can pass through hydrate layer smoothly.3, the present invention is provided with in the free gas still and gets tracheae, by suction force the hydrate that contains free gas in the hydrate reaction still is taken out, and it is convenient to get gas, and has effectively simulated the production tubing in the actual exploitation.4, the present invention is filled with the mixture that contains deposit and saturation water of simulation mineral in the hydrate reaction still, feeds natural gas then, has realized the simulation that gas hydrates are hidden.5, present device is simple, and is easy to operate, can be extended in the actual mining equipment manufacturing.
Description of drawings
Fig. 1 is the structural representation of a kind of exploitation of gas hydrates analogue means in the prior art
Fig. 2 is a structural representation of the present invention
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As shown in Figure 2, the present invention includes a free gas still 1, free gas still 1 connects monohydrate reactor 3 by some air pressure valves 2, the mixture 4, one that is filled with deposit (such as sand) and saturation water in hydrate reaction still 3 is got tracheae 5 and is passed the bottom that mixture 4 plugs hydrate reaction still 3 from the outside of hydrate reaction still 3; Free gas still 1 and hydrate reaction still 3 are connected on the natural gas gas bomb 7 by a wireway 6 that has breather valve respectively.
In the foregoing description, air pressure valve 2 can be one, also can be two or three etc.
In the foregoing description, natural gas gas bomb 7 can be set to one, also can be set to two, and when two natural gas gas bombs 7 are set to two, can contain congruent natural gas, link to each other with hydrate reaction still 3 with free gas still 1 by a wireway 6 separately; Also can contain the natural gas of heterogeneity, each gas bomb 7 all passes through 2 wireways 6 and links to each other with hydrate reaction still 3 with free gas still 1 respectively.
During experiment, at first close the air pressure valve 2 between free gas still 1 and the hydrate reaction still 3, in hydrate reaction still 3, fill the mixture 4 of deposit (such as sand) and saturation water, then, to free gas still 1 and hydrate reaction still 3, feed natural gas simultaneously from natural gas gas bomb 7.At this moment, in free gas still 1, have only natural gas, be used to simulate free gas reservoir; In hydrate reaction still 3, water and natural gas generation hydration reaction generate gas hydrates, are used for simulating hydrate and hide.After the gas hydrates generative process is finished, open the air pressure valve 2 between free gas still 1 and the hydrate reaction still 3, make the pressure balance in free gas still 1 and the hydrate reaction still 3.From get tracheae 5, extract gas hydrates again, along with the pressure in the hydrate reaction still 3 reduces, free natural gas in the free gas still 1 can constantly enter into hydrate reaction still 3 by air pressure valve 2, realizes the exploitation simulation that the hydrate that has free gas is hidden thus.
Claims (6)
1. exploitation of gas hydrates analogue means that contains free gas-bearing formation, it is characterized in that: it comprises a free gas still and the monohydrate reactor that connects by at least one air pressure valve, and described free gas still is connected the natural gas gas bomb by wireway respectively with the hydrate reaction still; Be filled with the mixture that comprises deposit and saturation water in described hydrate reaction still, one gets tracheae passes described mixture and plugs in the described hydrate reaction still.
2. a kind of exploitation of gas hydrates analogue means that contains free gas-bearing formation as claimed in claim 1, it is characterized in that: described natural gas gas bomb is one, described free gas still is connected described natural gas gas bomb by wireway respectively with the hydrate reaction still.
3. a kind of exploitation of gas hydrates analogue means that contains free gas-bearing formation as claimed in claim 1, it is characterized in that: described natural gas gas bomb is two, gas component in described two natural gas gas bombs is identical, and described free gas still is connected a natural gas gas bomb by wireway separately with the hydrate reaction still.
4. a kind of exploitation of gas hydrates analogue means that contains free gas-bearing formation as claimed in claim 1, it is characterized in that: described natural gas gas bomb is two, in one of them described natural gas gas bomb is a kind of gas component, is another kind of gas component in another described natural gas gas bomb; Described free gas still connects a described natural gas gas bomb by a wireway, and described hydrate reaction still connects another described natural gas gas bomb by a wireway.
5. a kind of exploitation of gas hydrates analogue means that contains free gas-bearing formation as claimed in claim 1, it is characterized in that: described natural gas gas bomb is two, in one of them described natural gas gas bomb is a kind of gas component, is another kind of gas component in another described natural gas gas bomb; One of them described natural gas gas bomb links to each other with described free gas still by a wireway, links to each other with described hydrate reaction still by another root wireway; Another described natural gas gas bomb links to each other with described free gas still by a wireway, links to each other with described hydrate reaction still by another root wireway; Be respectively arranged with breather valve on each described wireway.
6. as claim 1 or 2 or 3 or 4 described a kind of exploitation of gas hydrates analogue means that contain free gas-bearing formation, it is characterized in that: the deposit in the described hydrate reaction still is a sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101016209A CN101240700B (en) | 2008-03-10 | 2008-03-10 | Free gas layer-containing natural gas hydrate mining simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101016209A CN101240700B (en) | 2008-03-10 | 2008-03-10 | Free gas layer-containing natural gas hydrate mining simulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101240700A CN101240700A (en) | 2008-08-13 |
| CN101240700B true CN101240700B (en) | 2011-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101016209A Active CN101240700B (en) | 2008-03-10 | 2008-03-10 | Free gas layer-containing natural gas hydrate mining simulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN101240700B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550816B (en) * | 2009-05-20 | 2011-12-07 | 中国科学院广州能源研究所 | Three-dimensional exploitation simulated experiment apparatus for natural gas hydrate |
| CN101575964B (en) * | 2009-06-05 | 2013-04-03 | 中国石油大学(北京) | Experimental method and device for simulating exploitation of gas hydrates |
| CN110273679B (en) * | 2019-05-17 | 2023-03-24 | 江苏联友科研仪器有限公司 | Hydrate development layering physical simulation experiment device |
| CN111691855B (en) * | 2020-05-22 | 2022-04-08 | 中海石油(中国)有限公司湛江分公司 | Simulation device and method for joint production of conventional natural gas reservoir and methane hydrate reservoir |
| CN113356800B (en) * | 2021-06-28 | 2022-09-09 | 西南石油大学 | Experimental device and method for combined exploitation of marine hydrate and free gas |
| CN113719279B (en) * | 2021-09-08 | 2023-09-15 | 中国海洋石油集团有限公司 | Serially connected type free gas hydrate reservoir simulation device and method |
| CN114320243B (en) * | 2022-03-11 | 2022-05-06 | 中国石油大学(华东) | Natural gas hydrate reservoir multi-branch horizontal well gravel packing simulation experiment system |
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- 2008-03-10 CN CN2008101016209A patent/CN101240700B/en active Active
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| Publication number | Publication date |
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| CN101240700A (en) | 2008-08-13 |
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| C14 | Grant of patent or utility model | ||
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC Research Institute Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Research Center |
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| CP01 | Change in the name or title of a patent holder | ||
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |