CN208416509U - A kind of back-up sand simulator of steam exploitation of gas hydrate - Google Patents
A kind of back-up sand simulator of steam exploitation of gas hydrate Download PDFInfo
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- CN208416509U CN208416509U CN201821106241.4U CN201821106241U CN208416509U CN 208416509 U CN208416509 U CN 208416509U CN 201821106241 U CN201821106241 U CN 201821106241U CN 208416509 U CN208416509 U CN 208416509U
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Abstract
The utility model discloses a kind of back-up sand simulators of steam exploitation of gas hydrate, including simulating cylinder, the compensatory exploitation mechanism for exploitation being connect with simulation cylinder, the categorised collection mechanism for being used to collect gas-liquid being connect with simulation cylinder, compensatory exploitation mechanism includes the steam pipe and compensation pipe for being connected to simulation cylinder side, steam pipe end is connected with hot inflator, compensation pipe end is connected with compensation seat, compensation seat side is connected with heating pipe, simulation cylinder top is connect by balance pipe with compensation seat top, categorised collection mechanism includes the recovery tube for being connected to simulation cylinder end, recycling pipe end is connected with the separator box for gas-liquid separation, and simulation cylinder is connect by hollow back-up sand seat with recovery tube, hollow back-up sand seat top is connected with guide cylinder, and hollow back-up sand seat is internally provided with recessed groove, by compensatory exploitation mechanism to hydrate Exploitation processing is carried out, guarantees that the stable gas pressure of recovery process and heat are stablized, so that the more stable safety of recovery process.
Description
Technical field
The utility model relates to exploitation of gas hydrates technical field, specially a kind of steam exploitation of gas hydrate
Back-up sand simulator.
Background technique
Gas hydrates, chemical formula CH4xH2O, i.e. combustible ice are distributed across the permanent of halmeic deposit or land-based area
In frozen soil, by the crystalline material for the class ice-like that natural gas and water are formed under the conditions of high pressure low temperature.Due to its appearance is as ice
And meeting fire is incendivity, so be a solid block object in fact also referred to as " combustible ice ", " solid gas " and " gas ice ",
Gas hydrates are widely distributed in slope land band, activity and the passive continental margin of continent permafrost, island in nature
Bump pad, polar region continental shelf and ocean and some inland lakes deepwater environment.It is hardly produced after gas hydrates burning
Raw any residue, damage ratio coal, petroleum, natural gas will be much smaller.1 cubic metre of combustible ice can be converted into 164 cubic metres of day
Right gas and 0.8 cubic metre of water.Decompression that only " gas hydrates " of solid need to heat up when exploitation just can release a large amount of
Methane gas.
Gas hydrates typically occur in deep layer or the sediment structure of deep-sea shallow-layer in the ocean shallow water ecosphere,
Or expose at sea bed.Under high pressure, gas hydrates 18 DEG C at a temperature of remain to maintain stablize, general natural gas
Hydrate group becomes 1 mole of methane and every 5.75 moles of water, however this ratio is " embedding depending on how many methane molecules
Enter " in a variety of different clad structures of crystal lattice, according to the density of observation about in 0.9g/cm3, one liter of gas hydrates are solid
Body averagely includes at standard conditions 168 liters of methane gas.
The recovery method proposed at present, which is all based on, is located at pressure and temp condition existing for hydrate under phase equilibrium line
Non-hydrate area and the principle decomposed, including voltage drop method, heating, injecting inhibitor method, CO2 displacement method and several sides
The joint of method.Wherein decompression exploitation is relatively inexpensive reliable, but the offer due to lacking heat, so that formation temperature is quickly down to 0
DEG C, furthermore the water freezing that decomposition of hydrate is formed also results in the generation that secondary water closes object.It is opened in the heat injection of gas hydrates
During adopting, generally simulation exploitation can be carried out by simulator, still, existing simulator is primarily present following defect:
(1) traditional simulator generally carries out heating exploitation by hot steam, still when carrying out simulation exploitation
When hot steam injection, since hydrate constantly decomposes, cause air pressure and temperature inside simulation cylinder that can occur biggish
Variation, not only influences the decomposition production efficiency of hydrate, but also may have some potential safety problems；
(2) simultaneously after completing simulation exploitation, traditional mechanical seal mode is unable to satisfy requirement, is easy to cause residual
Gas leak causes safety problem and pollution problem.
Summary of the invention
In order to overcome the shortcomings of prior art, the utility model provides a kind of filling out for steam exploitation of gas hydrate
Sand simulator carries out exploitation processing to hydrate by compensatory exploitation mechanism, guarantees the stable gas pressure and heat of recovery process
Amount is stablized, so that the more stable safety of recovery process, can effectively solve the problem of background technique proposes.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of back-up sand simulator of steam exploitation of gas hydrate is used for including simulation cylinder, with what simulation cylinder was connect
The compensatory exploitation mechanism of exploitation, the categorised collection mechanism for being used to collect gas-liquid being connect with simulation cylinder；
The compensatory exploitation mechanism includes the steam pipe and compensation pipe for being connected to simulation cylinder side, the steam pipe end
It is connected with hot inflator, the hot inflator is internally provided with several heating sheets, and hot inflator is connect by regulating valve with steam pipe,
The compensation pipe end is connected with compensation seat, and compensation seat side is connected with heating pipe, the simulation cylinder top by balance pipe and
The connection of seat top is compensated, the steam pipe end is connected with the heat diffusion bucket being located inside simulation cylinder, the categorised collection machine
Structure includes the recovery tube for being connected to simulation cylinder end, and the recycling pipe end is connected with the separator box for gas-liquid separation, and mould
Quasi- cylinder is connect by hollow back-up sand seat with recovery tube, and the hollow back-up sand seat top is connected with guide cylinder, and in hollow back-up sand seat
Portion is provided with recessed groove.
Further, heat diffusion bucket bottom end is connected with several branched pipes, and the branched pipe uses helical structure,
And heat diffusion bucket outer wall side integrated installation has several curved pipes, the arc pipe surface is evenly arranged with several conductings
Slot.
Further, the hot gas pipe end is connected with vortex tube, and the vortex tube input terminal is connected with air compressor,
And the vortex tube other end is connected with refrigerator pipe, the cold air pipe end is connect with separator box, and the guide cylinder top is connected with stream
Sand tube.
Further, the separator box is internally provided with inside spin isolating cylinder, the inside spin isolating cylinder and separator box it
Between be condensation chamber, the refrigerator pipe is connect with condensation chamber, and inside spin isolating cylinder inner wall is provided with several arc-shaped recliner copper sheets,
Inside spin isolating cylinder top is connected with several gass collecting jar with ground-on cover plate.
Further, delay seat is installed inside the compensation seat, and is detained seat and is connect by conduction pipe with compensation pipe, institute
Balance pipe is stated using u-tube structure, and balances and piston tube is installed at tube hub.
Compared with prior art, the utility model has the beneficial effects that
(1) the utility model carries out exploitation processing to hydrate by compensatory exploitation mechanism, so that entire recovery process
Heat and air pressure may be at stable equilibrium state, allow the recovery process of hydrate to stablize progress, be conducive to
Hydrate is exploited and carries out stable simulation research, simulation process is safer；
(2) the utility model is isolated the hydrate after exploitation in the way of the encapsulation process of hollow back-up sand seat,
It plays a good protective effect, prevents excessive gas from overflowing, play the role of good safeguard protection and anti-leak.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the separator box cross section structure schematic diagram of the utility model；
Fig. 3 is the heat diffusion bucket structure schematic diagram of the utility model.
Figure label:
1- simulates cylinder；The compensatory exploitation mechanism of 2-；3- categorised collection mechanism；4- heat diffusion bucket；5- vortex tube；6- air
Compressor；7- refrigerator pipe；8- is detained seat；The hollow back-up sand seat of 9-；10- piston tube；11- guide cylinder；12- recessed groove；13- drift sand
Pipe；
201- steam pipe；202- compensation pipe；203- hot inflator；204- heating sheet；205- regulating valve；206- heating pipe；
207- compensates seat；208- balance pipe；
301- recovery tube；302- separator box；303- inside spin isolating cylinder；304- condensation chamber；305- arc-shaped recliner copper sheet；
306- gas collecting jar with ground-on cover plate；
401- branched pipe；402- curved pipe；403- conductance slot.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1 to Figure 3, the utility model provides a kind of back-up sand simulation dress of steam exploitation of gas hydrate
Set, including simulation cylinder 1, with simulation cylinder 1 connect for exploitation compensatory exploitation mechanism 2, with simulate cylinder 1 connect be used for receive
Collect the categorised collection mechanism 3 of gas-liquid, which is carried out by the hydrate inside 2 pairs of simulation cylinders 1 of compensatory exploitation mechanism
Compensatory exploitation can not only carry out temperature and atmospheric pressure compensating during exploitation, guarantee the gas inside entire simulation cylinder 1
Pressure and production temperature are in stable state, so that entire recovery process more safety and stability, while it is right by categorised collection mechanism 3
Air-water mixture after exploitation carries out gas-liquid separation, convenient for being gas water to the methane gas purification processes after exploitation
The exploitation for closing object provides analog basis.
The compensatory exploitation mechanism 2 includes the steam pipe 201 and compensation pipe 202 for being connected to simulation 1 side of cylinder, the steaming
201 end of steam pipe is connected with hot inflator 203, and the hot inflator 203 is internally provided with several heating sheets 204, and hot inflator 203
It is connect by regulating valve 205 with steam pipe 201, first by the heat effect of the heating sheet 204 inside hot inflator 203, is generated
Water evaporation inside hot inflator 203 is steam by heat, and vapor is entered inside simulation cylinder 1 by steam pipe 201, passes through heat
Steam steam exploitation is carried out to the hydrate inside simulation cylinder 1, while regulating valve 205 is mainly used to adjusting steam pipe 201
The steam velocity of discharge.
201 end of steam pipe is connected with the heat diffusion bucket 4 being located inside simulation cylinder 1, passes through heat diffusion bucket 4
Diffusion, the steam that steam pipe 201 is discharged uniformly fill inside simulation cylinder 1, are conducive to inside simulation cylinder 1
Hydrate exploited comprehensively, 4 bottom end of heat diffusion bucket is connected with several branched pipes 401, and the branched pipe 401 is adopted
With helical structure, and 4 outer wall side integrated installation of heat diffusion bucket has several curved pipes 402, and 402 surface of curved pipe is equal
It is even to be provided with several conductance slots 403, by the diffusion of multiple branched pipes 401 of 4 bottom end of heat diffusion bucket, so that steam
Air-flow is injected on the hydrate inside simulation cylinder 1 with different position and direction, accelerates the exploitation of hydrate, and heat expands
Several conductance slots 403 that several curved pipes 402 and surface for dissipating 4 outer wall side integrated installations of bucket are uniformly arranged, can make
Steam is distributed more uniform inside simulation cylinder 1, be conducive to the uniform exploitation of hydrate.
202 end of compensation pipe is connected with compensation seat 207, and compensation 207 side of seat is connected with heating pipe 206, the mould
Quasi- 1 top of cylinder is connect by balance pipe 208 with compensation seat 207, while when specifically used work, by compensating seat 207
Air pressure and temperature-compensating are carried out to whole, so that the temperature and air pressure inside simulation cylinder 1 are in stable equilibrium state, institute always
It states to be equipped with inside compensation seat 207 and is detained seat 8, and be detained seat 8 and connect by conduction pipe with compensation pipe 202, the balance pipe 208
Using u-tube structure, and piston tube 10 is installed at 208 center of balance pipe, the hot gas that heating pipe 206 is discharged into is by being detained seat 8
Enter compensation seat 207 later, compensation pipe 202 is discharged to by conduction pipe later, to progress atmospheric pressure compensating and heat inside simulation cylinder 1
Amount compensation, after reaching suitable mining conditions, so that the temperature and air pressure inside simulation cylinder 1 are in stable balance always
State improves the stability of subsequent exploitation.
1 top of cylinder is simulated simultaneously and is connect by balance pipe 208 with compensation seat 207, and balance pipe 208 uses u-tube structure, puts down
Weighing apparatus is equipped with piston tube 10 at 208 center of pipe, during exploitation, is become by the liquid scale inside observation balance pipe 208
Change to judge to simulate the air pressure change inside cylinder 1, by the piston adjustment effect of piston tube 10, so that 208 inside liquid of balance pipe
Column tends towards stability, to guarantee the stability of the atmospheric pressure state inside simulation cylinder 1, thus opening inside rationally control simulation cylinder 1
Gas production pressure, while 208 both ends of balance pipe prevent internal fluid column from overflowing by polymeric membrane.
It on the other hand,, can be by micro- due to being usually to reduce pressure to exploit hydrate during exploiting hydrate
The mode of adjusting suitably reduces the atmospheric pressure state inside simulation cylinder 1, i.e., is acted on by the telescopic adjustment of piston tube 19, cooperated simultaneously
The atmospheric pressure compensating of pipe 202 is compensated, the liquid scale variation inside balance pipe 208 is observed, so that the fluid column inside balance pipe 208 leans on
The side liquid level that near-lying mode intends cylinder 1 is slightly higher, and other side liquid level is slightly lower, so that pressing inside the simulation cylinder 1 of entire simulation system
Power reduces by a small margin, and whole temperature is maintained, and convenient for the exploitation of hydrate, is conducive to stablize exploitation realization.
206 end of heating pipe is connected with vortex tube 5, and 5 input terminal of vortex tube is connected with air compressor 6, leads to
The air crossed after air compressor 6 compresses, which enters inside vortex tube 5, generates eddy current effect, and generating has the two of cooling capacity and heat
Kind gas, hot gas are discharged by heating pipe 206, and 5 other end of vortex tube is connected with refrigerator pipe 7, and cold air is discharged by refrigerator pipe 7,
For carrying out condensation.
The gas that vortex reaction is discharged respectively is generated by vortex tube 5 and carries out heat supply and condensation process respectively, realizes energy
The effective use of amount.The categorised collection mechanism 3 includes the recovery tube 301 for being connected to simulation 1 end of cylinder, the recovery tube 301
End is connected with the separator box 302 for gas-liquid separation, and 7 end of refrigerator pipe is connect with separator box 302, passes through refrigerator pipe 7
Condensation is provided for the gas inside separator box 302.
It further illustrates, the separator box 302 is internally provided with inside spin isolating cylinder 303, the inside spin isolation
It is condensation chamber 304 between cylinder 303 and separator box 302, the refrigerator pipe 7 is connect with condensation chamber 304, and inside spin isolating cylinder 303
Inner wall is provided with several arc-shaped recliner copper sheets 305, and 303 top of inside spin isolating cylinder is connected with several gass collecting jar with ground-on cover plate 306, cold air
It is entered inside condensation chamber 304 by refrigerator pipe 7, and enters the gas of the inside spin isolating cylinder 303 inside separator box 302,
It is condensed under the cold air effect of condensation chamber 304, so that the air-water mixture after exploitation be separated, vapor is through being subcooled
Solidifying effect is dripped downwards, and methane gas continues to rise, and by 306 centralized collection of gas collecting jar with ground-on cover plate, and arc-shaped recliner copper sheet 305 is good
Good conductive force is conducive to accelerate condensation.
It should be added that simulation cylinder 1 is connect by hollow back-up sand seat 9 with recovery tube 301, the hollow back-up sand seat
9 tops are connected with guide cylinder 11, and hollow back-up sand seat 9 is internally provided with recessed groove 12, and 11 top of guide cylinder is connected with stream
Water sand mixture is drained into the recessed groove 12 inside hollow back-up sand seat 9 by drift sand pipe 13 by sand tube 13, completes exploitation
Afterwards, by accumulating the barrier effect for the silt being deposited in inside recessed groove 12, so that the residual gas inside simulation cylinder 1 will not overflow
Out, it plays a protective role.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (5)
1. a kind of back-up sand simulator of steam exploitation of gas hydrate, it is characterised in that: including simulation cylinder (1) and simulation
The classification for collecting gas-liquid of cylinder (1) connection connecting for the compensatory exploitation mechanism (2) of exploitation, with simulation cylinder (1) is received
Collecting mechanism (3)；
Compensatory exploitation mechanism (2) includes the steam pipe (201) and compensation pipe (202) for being connected to simulation cylinder (1) side, institute
It states steam pipe (201) end to be connected with hot inflator (203), the hot inflator (203) is internally provided with several heating sheets
(204), and hot inflator (203) is connect by regulating valve (205) with steam pipe (201), and the compensation pipe (202) end is connected with
It compensates seat (207), compensation seat (207) side is connected with heating pipe (206), and the simulation cylinder (1) top passes through balance pipe (208)
It is connect with compensation seat (207) top, steam pipe (201) end, which is connected with, is located at the internal heat diffusion bucket of simulation cylinder (1)
(4), the categorised collection mechanism (3) includes the recovery tube (301) for being connected to simulation cylinder (1) end, recovery tube (301) end
End is connected with the separator box (302) for gas-liquid separation, and simulates cylinder (1) and connected by hollow back-up sand seat (9) and recovery tube (301)
It connects, hollow back-up sand seat (9) top is connected with guide cylinder (11), and hollow back-up sand seat (9) is internally provided with recessed groove (12).
2. a kind of back-up sand simulator of steam exploitation of gas hydrate according to claim 1, it is characterised in that: institute
It states heat diffusion bucket (4) bottom end and is connected with several branched pipes (401), the branched pipe (401) uses helical structure, and heat
Diffusion bucket (4) outer wall side integrated installation has several curved pipes (402), and the curved pipe (402) is if surface is evenly arranged with
Dry conductance slot (403).
3. a kind of back-up sand simulator of steam exploitation of gas hydrate according to claim 1, it is characterised in that: institute
It states heating pipe (206) end to be connected with vortex tube (5), vortex tube (5) input terminal is connected with air compressor (6), and whirlpool
Flow tube (5) other end is connected with refrigerator pipe (7), and refrigerator pipe (7) end is connect with separator box (302), the guide cylinder
(11) top is connected with drift sand pipe (13).
4. a kind of back-up sand simulator of steam exploitation of gas hydrate according to claim 3, it is characterised in that: institute
Separator box (302) is stated to be internally provided with inside spin isolating cylinder (303), the inside spin isolating cylinder (303) and separator box (302) it
Between be condensation chamber (304), the refrigerator pipe (7) connect with condensation chamber (304), and inside spin isolating cylinder (303) inner wall is provided with
Several arc-shaped recliner copper sheets (305), inside spin isolating cylinder (303) top are connected with several gass collecting jar with ground-on cover plate (306).
5. a kind of back-up sand simulator of steam exploitation of gas hydrate according to claim 1, it is characterised in that: institute
It states to be equipped with inside compensation seat (207) and is detained seat (8), and be detained seat (8) and connect by conduction pipe with compensation pipe (202), it is described
Balance pipe (208) uses u-tube structure, and is equipped with piston tube (10) at balance pipe (208) center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821106241.4U CN208416509U (en) | 2018-07-13 | 2018-07-13 | A kind of back-up sand simulator of steam exploitation of gas hydrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821106241.4U CN208416509U (en) | 2018-07-13 | 2018-07-13 | A kind of back-up sand simulator of steam exploitation of gas hydrate |
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| Publication Number | Publication Date |
|---|---|
| CN208416509U true CN208416509U (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821106241.4U Expired - Fee Related CN208416509U (en) | 2018-07-13 | 2018-07-13 | A kind of back-up sand simulator of steam exploitation of gas hydrate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961665A (en) * | 2022-04-29 | 2022-08-30 | 中国地质大学（武汉） | Hydrate reservoir visual gravel packing simulation experiment system and method |
-
2018
- 2018-07-13 CN CN201821106241.4U patent/CN208416509U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961665A (en) * | 2022-04-29 | 2022-08-30 | 中国地质大学（武汉） | Hydrate reservoir visual gravel packing simulation experiment system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20190713 |