CN110111668A - More kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices and purposes - Google Patents
More kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices and purposes Download PDFInfo
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- CN110111668A CN110111668A CN201810101187.2A CN201810101187A CN110111668A CN 110111668 A CN110111668 A CN 110111668A CN 201810101187 A CN201810101187 A CN 201810101187A CN 110111668 A CN110111668 A CN 110111668A
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- gas hydrate
- autoclave
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- 238000004088 simulation Methods 0.000 title claims abstract description 69
- 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 claims abstract description 65
- 230000008021 deposition Effects 0.000 title claims abstract description 51
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims description 49
- 238000000151 deposition Methods 0.000 claims description 46
- 238000011084 recovery Methods 0.000 claims description 28
- 238000002474 experimental method Methods 0.000 claims description 24
- 239000007924 injection Substances 0.000 claims description 23
- 238000002347 injection Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 20
- 238000012544 monitoring process Methods 0.000 claims description 16
- 230000006837 decompression Effects 0.000 claims description 14
- 238000007689 inspection Methods 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000013480 data collection Methods 0.000 claims description 7
- 238000000354 decomposition reaction Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 claims description 4
- 238000011069 regeneration method Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 150000004677 hydrates Chemical class 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 15
- 239000013049 sediment Substances 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 5
- 238000003786 synthesis reaction Methods 0.000 abstract description 5
- 241000668854 Howardia biclavis Species 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract description 2
- 238000005137 deposition process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000008859 change Effects 0.000 description 9
- 239000004615 ingredient Substances 0.000 description 6
- 238000005429 filling process Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000007086 side reaction Methods 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002595 magnetic resonance imaging Methods 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 natural gas hydrates Chemical class 0.000 description 1
- 239000003027 oil sand Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The present invention provides more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices and purposes.More kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices include it is multiple being capable of separate analogue Gas Hydrate Deposition/exploitation autoclave；The mutual bottom of autoclave by connection pipeline interconnection perforation, can inline also extension, and have unlimitedness.The simulator can be used for simulating Gas Hydrate Deposition process medium fluid flowing under intimate real working condition, gas hydrate synthesis accumulation and space distribution rule, and the variation of pressure field, fluid flowing and sediment transport rule and three-dimensional effect under different exploitation patterns, analog study sea bed gas hydrate at hiding/Mining scale in Cong Geng great dimension；In addition, by way of the interconnection perforation of more kettles, it is possible to increase gas hydrates are modeled to hiding/quarrying apparatus scale, reduce cost and operation difficulty, improve operating flexibility.
Description
Technical field
The invention belongs to exploiting ocean natural gas hydrates technical fields, are related to a kind of more kettle interconnection type gas hydrates
At hiding/exploitation analogue simulation device and purposes.
Background technique
Gas hydrates are the class ice formed under the conditions of high pressure low temperature by hydrocarbon gas such as water and methane, non-chemical
The cage type crystalline compounds of metering have the characteristics that high density, high heating value, distribution is wide, reserves are big.Gas hydrates divide extensively
It is distributed in the slope land band on continent island, the bump pad of activity and passive continental margin, polar region shelf sea and deepwater environment.Entirely
World's gas hydrates gross reserves is about twice of current explored all fossil fuel phosphorus content summations, China South Sea
Gas Hydrate In Sea Areas reserves are 649700 billion cubic meters.Therefore, gas hydrates are expected to become after shale gas, densification
Reserves after gas, coal bed gas, oil-sand etc. are the most huge to take over the energy.
Many countries are all going into overdrive to carry out exploitation of gas hydrates research in the world, more mature at present to open
Mining method includes decompression extraction system, thermal excitation extraction system, chemical reagent injection extraction system, carbon dioxide replacement exploitation method and seabed
Exploit mining method.These methods respectively have its strengths and weaknesses.Voltage drop method is promoted by reducing gas hydrates reservoir pressure
A kind of its method decomposed.Voltage drop method does not need continuous agitation, be suitble to large area exploitation and it is at low cost, be that gas hydrates are opened
Most promising method in adopting.Compared to voltage drop method, the method with ocean-mine exploitation is exploited in heat injection exploitation, note chemical agent
Higher cost.
The technical way of gas hydrate mining methods research at present includes indoor physical simulation and numerical analysis,
And exploitation of gas hydrates imitative experimental appliance is that a set of collection gas hydrates generation, decomposition, parameter measurement etc. are multi-functional
In one highly integrated system, the design of shape and scale largely determine the scale of experimental system, investment,
The validity of performance and experimental result.Domestic and international related research institutes according to self-demand built respectively different shape, size,
The simulation quarrying apparatus of technical indicator and major function, as shown in table 1 below:
The comparison of the domestic and international exploitation of gas hydrates simulated experiment reaction kettle of table 1
However, the universal size of these devices is smaller, experimental period is long, and equipment cost is high, and detection means are few, has a single function,
Operational safety is low and cannot simulate exploitation of gas hydrates process under real working condition, can not especially obtain three-dimensional effect,
Spatial Parallel between well when being such as depressured affected area, the production of more wells of exploitation, can not also investigate into hiding/recovery process
Gas-liquid migration rule.
Summary of the invention
Deficiency existing for quarrying apparatus is simulated based on gas hydrates in the prior art, the purpose of the present invention is to provide
A kind of more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices and purposes.The device passes through the interconnection perforation of more kettles
Mode, it is possible to increase gas hydrates are modeled to hiding/quarrying apparatus scale, reduce cost and operation difficulty, improve operation
Flexibility；Using this method can from bigger dimension analog study sea bed gas hydrate at hiding/Mining scale, can
Effectively monitor generation/decomposing state at gas-liquid transport conditions and hydrate in hiding/recovery process.
The purpose of the present invention is achieved by the following technical programs:
On the one hand, the present invention provides a kind of more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, this is more
Kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation device include it is multiple can separate analogue gas hydrates at
Hiding/exploitation autoclave；
The mutual kettle wall bottom of the autoclave passes through the interconnection perforation of connection pipeline.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, each autoclave it is interior
Connection and extension have unlimitedness, i.e., the mutual contact mode between each kettle can change multiplicity, between each other can in any combination,
Interconnecting perforation scale by connection pipeline can achieve from several meters to tens of rice, the number of autoclave be also it is unlimited,
Can according to need and fund condition increase at any time autoclave, expand system scale and connectivity.Cross over pipe between autoclave body
Length and internal diameter can be adjusted according to requirement of experiment, with this can investigate decompression recovery process in radial maximum involve
Region and rate.
The device can simulate the recovery process of gas hydrates under intimate real working condition；It realizes in different dimensions, ruler
Spend the production gas water rule of lower researching natural gas hydrate recovery process；Both three-dimensional effect needed for available recovery process, reaches
To with the experiment effect in the comparable single autoclave of its scale, and can reduce cost, improve experiment convenience and safety
Property.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, it is preferable that the high pressure is anti-
The kettle wall bottom of kettle is answered to offer two groups of screw holes up and down, every group of screw hole includes multiple screw holes, and two groups of screw holes are respectively large aperture spiral shell
Hole group and small-bore screw hole group；The screw hole of big small-bore can arbitrarily be selected according to the connection mode of autoclave in two groups of screw holes
With the screw hole that do not select is closed with pipe plug；The quantity of screw hole and position can be set according to practical operation.Two groups of screw holes are set to instead
The surrounding for answering kettle kettle wall bottom, is arranged above and below.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, it is preferable that selection is joined
By flanged joint between logical screw hole and connection pipeline, change the length of the connection pipeline and interior by adjusting the flange
Diameter.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, it is preferable that the cross over pipe
The internal diameter on road is 50-200mm；It is further preferred that the internal diameter of the connection pipeline is 80-120mm, but not limited to this.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, it is preferable that the cross over pipe
Road is provided with temperature sensor probe and pressure sensor probe for monitoring temperature and pressure.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, it is preferable that the small-bore
The aperture of the screw hole of screw hole group is 50-100mm, but not limited to this；The aperture of the screw hole of the large aperture screw hole group is 100-
200mm, but not limited to this.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, it is preferable that the high pressure is anti-
Answering kettle is cylindrical three-dimensional tank reactor.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, it is preferable that the high pressure is anti-
Kettle is answered to be equipped with perfect gas handling system, exhaust system, temperature monitoring system, pressure monitor system, data collection system, feed liquor
System and drainage system.Each autoclave is respectively placed on independent operating platform, is had between each autoclave very high
Independence, can independently carry out analog study.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, which can be studied into
During hiding simulated experiment, fluid flowing, gas hydrate synthesis is built up and space distribution rule, is carrying out hydrate exploitation simulation
When, according to the demand of different exploitation patterns, it is preferable that the autoclave is through in kettle by its kettle top is laid with a well；
The well includes producing well, injection well or inspection well.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, in advance in each reaction kettle and
It is loaded in connection pipeline and contains water sediment, then by/exhaust, water or other fluid progress hydrate Filling process simulation and water
Close the simulation of object recovery process.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, it is preferable that more kettle interconnections
Formula Gas Hydrate Deposition/exploitation analogue simulation device is placed in the envelope equipped with refrigeration equipment when carrying out simulation exploitation
In lockout room, temperature control range is -15 DEG C to 50 DEG C.Since sealing power house space is big, external disturbance is small to the influence of fluctuations of temperature,
Temperature can accurately control accordingly.Meanwhile in order to reach better refrigeration effect, the influence of reduction ambient temperature disturbance can
To install collet additional.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, it is preferable that the high pressure is anti-
The quantity for answering kettle is 5, including 1 central reaction kettle and 4 secondary reacting kettles；The central reaction kettle respectively with the side reaction
Kettle interconnection；The secondary reacting kettle is successively connected in series.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, it is preferable that exploited in decompression
During simulated experiment, the central reaction kettle is through in kettle by its kettle top is laid with a producing well, the producing well connection
Well conduit is produced to be used to carry out hydrate in kettle individual well decompression exploitation；The secondary reacting kettle is through in kettle by its kettle top and is laid
There is an inspection well, for studying pressure field variation in recovery process, fluid flowing and sediment transport rule.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, it is preferable that in heat injection, note
During gas enhanced recovery simulated experiment, the central reaction kettle is through in kettle by its kettle top is laid with an injection well；It is described
Secondary reacting kettle is through in kettle by its kettle top is laid with an inspection well or producing well, for study injection fluid flowing law and
To decomposition of hydrate/regeneration process affecting laws, production efficiency is evaluated.
In above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, it is preferable that the high pressure is anti-
Answering autoclave body product is 200L-250L, but not limited to this dimensions of volume, each autoclave can not be identical.Each reaction kettle
It is equipped with perfect air intake-exhaust system, monitoring system, data collection system, feed liquor drainage system etc..Each reaction kettle is equal
The generation, exploitation and monitoring operation of gas hydrates can be independently carried out, and be respectively placed on independent operating platform.
More kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices of the invention are passed through using multiple autoclaves
Pipeline interconnection perforation, composition scale from several meters to tens of rice, can unlimited inline and extension large scale experimental simulation device, can mould
Intend Gas Hydrate Deposition/recovery process under intimate real working condition.Since Gas Hydrate Deposition/extracting experiment simulation needs
It to be carried out at high pressure (10-30MPa), the cost of large scale autoclave is sufficiently expensive, and length experimental period, operational safety
It is low.And exploitation simulation is carried out on the autoclave of small scale, three-dimensional effect can not be obtained, such as the affected area, more of decompression exploitation
Spatial correlation etc. between well when well produces.More kettles of the invention interconnect perforation, then can obtain required three-dimensional effect, reach with
Experiment effect in the comparable single autoclave of its scale, and cost substantially reduces, the convenience tested and safety mention significantly
It is high.In fact, the 20-30MPa autoclave for building 10 meters of diameter or more is impossible, this hair under the conditions of current technology
The advantage of bright device is also embodied in its inline and extension unlimitedness, i.e., the interconnection mode between each kettle is can to change multiplicity
, the number of autoclave be also it is unlimited, can according to need and fund condition increase at any time autoclave, expand system ruler
Degree and connectivity.
The settable traditional detection hand of more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices of the invention
Section is outer, can also be by CT scan technology (CT) and magnetic resonance imaging such as temperature, pressure, sound wave and resistivity
Technology (MRI) application wherein, the life of the gas-liquid transport conditions and hydrate in hiding/recovery process can be effectively monitored into this
At/decomposing state.
On the other hand, the present invention also provides above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices
At the application in hiding simulated experiment.
In another aspect, the present invention also provides above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices
Application in decompression exploitation simulated experiment.
In another aspect, the present invention also provides above-mentioned more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices
Application in heat injection, gas injection enhanced recovery simulated experiment.
More kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices of the invention can be used for simulating hydrate
Fluid flows in Filling process, gas hydrate synthesis is built up and space distribution rule, the variation of pressure field, stream under different exploitation patterns
Body flowing and sediment transport rule and three-dimensional effect, in Cong Geng great dimension analog study sea bed gas hydrate at
Hiding/Mining scale；In addition, by way of the interconnection perforation of more kettles, it is possible to increase gas hydrates are modeled to hiding/quarrying apparatus
Scale reduces cost and operation difficulty, improves operating flexibility.
Referring to following description and accompanying drawings, only certain exemplary embodiments of this invention is disclosed in detail, specifies original of the invention
Reason can be in a manner of adopted.It should be understood that embodiments of the present invention are not so limited in range.In appended power
In the range of the spirit and terms that benefit requires, embodiments of the present invention include many changes, modifications and are equal.For a kind of reality
The feature that the mode of applying is described and/or shown can be made in one or more other embodiments in a manner of same or similar
With, be combined with the feature in other embodiment, or substitution other embodiment in feature.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed by the invention in any way
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding of the present invention, and
It is not the specific shape and proportional sizes for limiting each component of the present invention.Those skilled in the art under the teachings of the present invention, can
Implement the present invention to select various possible shapes and proportional sizes as the case may be.
Fig. 1 is a kind of more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulations provided in the embodiment of the present invention
Schematic device；
Accompanying drawings symbol description:
1 central reaction kettle, 2 first secondary reacting kettles, 3 second secondary reacting kettles, 4 third secondary reacting kettles, 5 the 4th secondary reacting kettles, 6
Connection pipeline, 7 flanges, 8 pipe plugs, 9 central reaction kettles lay well, and 10 first secondary reacting kettles lay well, 11 second secondary reacting kettle cloth
If well, 12 third secondary reacting kettles lay well, and 13 the 4th secondary reacting kettles lay well, 14 extraction well conduits.
Specific embodiment
In order to which technical characteristic of the invention, purpose and beneficial effect are more clearly understood, now to skill of the invention
Art scheme carries out described further below, but should not be understood as that limiting the scope of the invention.In the teachings of the present invention
Under, technical staff is contemplated that these are regarded as belonging to the scope of the present invention based on any possible deformation of the invention.
It should be noted that be referred to as " being set to " another element when element, it can directly on the other element or can also
With there are elements placed in the middle.When an element is considered as " connection " another element, it can be directly to another
Element may be simultaneously present centering elements.Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be
Mechanical connection or electrical connection, the connection being also possible to inside two elements can be directly connected, and can also pass through intermediary
It is indirectly connected, for the ordinary skill in the art, can understand the concrete meaning of above-mentioned term as the case may be.
Term as used herein " vertically ", " horizontal ", "upper", "lower", "left", "right" and similar statement are intended merely to
Bright purpose, is not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
Any and all combinations of relevant listed item.
The present embodiment provides a kind of more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, more kettles are mutual
Connection formula Gas Hydrate Deposition/exploitation analogue simulation device include multiple can separate analogue Gas Hydrate Deposition/is opened
The autoclave adopted；The mutual kettle wall bottom of the autoclave passes through the interconnection perforation of connection pipeline.
The inline and extension of each autoclave has unlimitedness, i.e., the mutual contact mode between each kettle is can to change multiplicity
, it between each other can in any combination, interconnecting perforation scale by connection pipeline can achieve from several meters to tens of rice, and high pressure is anti-
Answer kettle number be also it is unlimited, can according to need and fund condition increase at any time autoclave, expand system ruler
Degree and connectivity.The length of cross over pipe and internal diameter can be adjusted according to requirement of experiment between autoclave body, can investigate decompression with this
Radial maximum affected area and rate in recovery process.
The device can simulate the recovery process of gas hydrates under intimate real working condition；It realizes in different dimensions, ruler
Spend the production gas water rule of lower researching natural gas hydrate recovery process；Both three-dimensional effect needed for available recovery process, reaches
To with the experiment effect in the comparable single autoclave of its scale, and can reduce cost, improve experiment convenience and safety
Property.
In a preferred embodiment, the kettle wall bottom of autoclave offers two groups of screw holes up and down, every group of spiral shell
Hole includes multiple screw holes, and two groups of screw holes are respectively large aperture screw hole group and small-bore screw hole group；Big small-bore in two groups of screw holes
Screw hole can arbitrarily be selected according to the connection mode of autoclave, and the screw hole that do not select is closed with pipe plug.It selects and carries out connection
By flanged joint between screw hole and connection pipeline, change the length and internal diameter of the connection pipeline by adjusting the flange.
In a preferred embodiment, the internal diameter of the connection pipeline is 50-200mm；It is further preferred that described
The internal diameter on siphunculus road is 80-120mm, but not limited to this.The cross over pipe road is provided with the temperature for monitoring temperature and pressure
Spend sensor probe and pressure sensor probe.The aperture of the screw hole of the large aperture screw hole group is 50-100mm；The aperture
The aperture of the screw hole of diameter screw hole group is 100-200mm, but not limited to this.
In a preferred embodiment, autoclave is cylindrical three-dimensional tank reactor.Autoclave dress
Equipped with perfect gas handling system, exhaust system, temperature monitoring system, pressure monitor system, data collection system, feed liquor system and
Drainage system.Each autoclave is respectively placed on independent operating platform, has very high independence between each autoclave
Property, it can independently carry out analog study.During the device can study into hiding simulated experiment, fluid flowing, gas hydrate synthesis
Accumulation and space distribution rule, when carrying out hydrate exploitation simulation, according to the demand of different exploitation patterns, it is preferable that described
Autoclave is through in kettle by its kettle top is laid with a well；The well includes producing well, injection well or inspection well.Carry out water
When closing the simulation of object Filling process and the simulation of hydrate recovery process, which is placed in the closing factory equipped with refrigeration equipment
In room, temperature control range is -15 DEG C to 50 DEG C.Since sealing power house space is big, external disturbance is small to the influence of fluctuations of temperature, temperature
It can accurately control accordingly；Meanwhile in order to reach better refrigeration effect, reduce the influence of ambient temperature disturbance, Ke Yijia
Mounting clip sleeve；Simulation exploitation when, in advance in each reaction kettle and connection pipeline filling contain water sediment, then by/exhaust,
Water or other fluid carries out the simulation of hydrate Filling process and the simulation of hydrate recovery process.
In a preferred embodiment, as shown in Figure 1, a kind of more kettle interconnection type Gas Hydrate Deposition/exploitations
Analogue simulation device, the quantity including the autoclave is 5, including 1 central reaction kettle and 4 secondary reacting kettles；Respectively
The inline and extension of autoclave has unlimitedness, i.e., the mutual contact mode between each autoclave is can to change multiplicity
, the number of autoclave be also it is unlimited, can according to need and fund condition increase at any time autoclave, expand
The scale and connectivity of system.
In a preferred embodiment, central reaction kettle 1 respectively with the first secondary reacting kettle 2, the second secondary reacting kettle 3,
Third secondary reacting kettle 4 and the interconnection of the 4th secondary reacting kettle 5；First secondary reacting kettle 2, the second secondary reacting kettle 3,4 and of third secondary reacting kettle
4th secondary reacting kettle 5 is successively connected in series.Central reaction kettle 1, the first secondary reacting kettle 2, the second secondary reacting kettle 3, third secondary reacting kettle 4
Two groups of screw holes up and down are offered with the kettle wall bottom of the 4th secondary reacting kettle 5, every group of screw hole includes multiple screw holes, such as: in Fig. 1
Entreating reaction kettle 1 includes 4 small screw holes and 4 big screw holes；4 secondary reacting kettles include 3 big screw hole and 1 small screw hole；Wherein, greatly
The aperture of screw hole is 100-200mm, and the aperture of small screw hole is 50-100mm (being set with specific reference to actual conditions).
The big screw hole of 3 of central reaction kettle 1 passes through flange 7 and connection pipeline 6 and the first secondary reacting kettle 2, the second side reaction
The interconnection perforation of the 1 big screw hole of kettle 3 and the 4th secondary reacting kettle 5 changes the length of connection pipeline 6 and interior by regulating flange 7
Diameter, the internal diameter of connection pipeline are 80-120mm (being set with specific reference to actual conditions)；Other 1 of central reaction kettle 1 is big
Screw hole is set as pipe plug closing.1 small screw hole of central reaction kettle 1 passes through flange 7 and connection pipeline 6 and the second secondary reacting kettle 3
1 small screw hole interconnect perforation, change the length and internal diameter of connection pipeline 6 by regulating flange 7, the internal diameter of connection pipeline is
80-120mm (is set) with specific reference to actual conditions；Other 3 small screw holes of central reaction kettle 1 are set as pipe plug closing.
First secondary reacting kettle 2, the second secondary reacting kettle 3, third secondary reacting kettle 4 and the 4th secondary reacting kettle 52 big screw hole pass through flange 7
Perforation is successively interconnected with connection pipeline 6, changes the length and internal diameter of connection pipeline 6, the internal diameter of connection pipeline by regulating flange 7
It (is set with specific reference to actual conditions) for 80-120mm；First secondary reacting kettle 2, third secondary reacting kettle 4 and the 4th side reaction
1 small screw hole of kettle 5 is set as pipe plug closing；The big screw hole of remaining 1 of second secondary reacting kettle is set as pipe plug closing.
In a preferred embodiment, during carrying out decompression exploitation simulated experiment, central reaction kettle 1 is by its kettle
Top, which is through in kettle, is laid with central reaction kettle laying well 9 (well is set as producing well), producing well connection extraction well conduit
14 for carrying out individual well decompression exploitation to hydrate in kettle；First secondary reacting kettle 2, the second secondary reacting kettle 3, third secondary reacting kettle 4
It is through in kettle with the 4th secondary reacting kettle 5 by its kettle top and is laid with the first secondary reacting kettle laying a well 10, the second side reaction respectively
Kettle lays well 11, third secondary reacting kettle lays well 12 and the 4th secondary reacting kettle lays well 13, inspection well is disposed as, for studying
Pressure field variation, fluid flowing and sediment transport rule in recovery process.
1 volume of central reaction kettle is 200L, but not limited to this dimensions of volume, surrounding reaction kettle can not be identical.Often
A reaction kettle is equipped with perfect air intake-exhaust system, monitoring system, data collection system, feed liquor drainage system etc..Each
Reaction kettle can independently carry out the generation, exploitation and monitoring operation of gas hydrates, and be respectively placed in independent operation
On platform.
In a preferred embodiment, during heat injection, gas injection enhanced recovery simulated experiment, central reaction kettle 1
It is through in kettle by its kettle top and is laid with central reaction kettle laying well 9 (well is set as injection well)；First secondary reacting kettle 2,
Second secondary reacting kettle 3, third secondary reacting kettle 4 and the 4th secondary reacting kettle 5 are through in kettle by its kettle top and are laid with one first respectively
Secondary reacting kettle lays well 10, the second secondary reacting kettle lays well 11, third secondary reacting kettle lays well 12 and the 4th secondary reacting kettle is laid
Well 13 may be configured as inspection well or producing well according to practical operation, for studying the flowing law of injection fluid and to hydrate
Decomposition/regeneration process affecting laws evaluate production efficiency.
1 volume of central reaction kettle is 200L, but not limited to this dimensions of volume, surrounding reaction kettle can not be identical.Often
A reaction kettle is equipped with perfect air intake-exhaust system, monitoring system, data collection system, feed liquor drainage system etc..Each
Reaction kettle can independently carry out the generation, exploitation and monitoring operation of gas hydrates, and be respectively placed in independent operation
On platform.
More kettle interconnection type Gas Hydrate Depositions/exploitation analogue simulation device carries out simulated operation specific steps are as follows:
(1) temperature is set to certain assigned temperature in advance, then will contains water sediment (its moisture content must be known) dress
It fills out in each reaction kettle and connection pipeline 6, and carries out compaction treatment appropriate, closed reaction kettle；
(2) high-pressure gas cylinder is opened, high-pressure natural gas is slowly introduced reaction from reactor bottom by gas handling system
In kettle and connection pipeline, make to increasingly generate hydrate in system.In hydrate formation, in monitoring and record reaction system
The parameters such as temperature, pressure, sound wave, resistance, investigate that fluid flowing in Filling process, gas hydrate synthesis is built up and space point with this
Cloth rule.
(3) after parameter each in system keeps basicly stable, illustrate that hydrate generation finishes in system, closes air inlet system
System.
(4) it carries out individual well decompression exploitation: setting producing well in central reaction kettle 1, remaining secondary reacting kettle sets inspection well, by adopting
Well conduit 14 carries out individual well decompression exploitation to the hydrate in reaction system out.The extraction rate of monitoring extraction gas, and pass through gas
Body returnable bottle is recycled and is measured.In recovery process, by monitoring system and data collection system to the hydrate in each kettle
Hiding parameter be monitored and record, with this come determine hydrate in differential responses kettle decompositions situation and hydrate hiding radial direction by
Influence situation.
(5) when output gas substantially without extraction when, illustrate extraction finish substantially.Compare each reaction kettle and connection pipeline 6 not
With the situation of change of location parameter, it can be deduced that recovery process radial direction involves range, decomposition of hydrate and gas-liquid transport conditions.
(6) heat up, after being decomposed substantially to hydrate in autoclave body and cross over pipe, by exhaust system by kettle residue gas
Body is all discharged, and then seawater in kettle is discharged by drainage system.Reaction kettle is opened, deposit is cleared out, and clean reaction
Kettle and cross over pipe.
(7) by regulating flange 7, the length or internal diameter of connection pipeline between flange are replaced, repeat the above steps (1) to (6),
Involve range to investigate the radial direction of decompression exploitation.
(8) simulation recovery method includes: to carry out individual well decompression exploitation from central reaction kettle；From central 1 gas injection of reaction kettle, note
Heat, from other secondary reacting kettle unitized productions etc..According to different exploitation pattern demands, can be laid in each kettle a well (or
Producing well or injection well or inspection well).It, can be in the reaction for being in center such as in heat injection, gas injection enhanced recovery experiment simulation
Kettle sets injection well, and surrounding reaction kettle sets producing well or inspection well, and research injects the flowing law of fluid and to hydrate point
Solution/regeneration process affecting laws evaluate production efficiency.
In conclusion the conventional gas hydrate simulation universal size of quarrying apparatus is small, have a single function, equipment cost is high and
Operating flexibility is poor, have been unable to meet under simulation more large scale gas hydrates in true bottom sediment at hiding/decomposition
Process also can not effectively investigate the migration rule and three-dimensional effect of pore-fluid in recovery process (gas and water).The simulation of this set
Device will be interconnected by cross over pipe between multiple reaction kettles and be penetrated through, and the scale of simulator is effectively expanded.Based on this simulation
Device can study the different three-dimensional effects at exploitation of gas hydrates under hiding range, different exploitation patterns, different well spacing
And it produces gas, produce water rule.
Multiple element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Optionally
Ground, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation.It is used to
The open "a" or "an" for describing element, ingredient, component or step is not said to exclude other elements, ingredient, component
Or step.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices, it is characterised in that: more kettle interconnection types
Gas Hydrate Deposition/exploitation analogue simulation device include it is multiple being capable of separate analogue Gas Hydrate Deposition/exploitation
Autoclave；
The mutual kettle wall bottom of the autoclave passes through the interconnection perforation of connection pipeline.
2. more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices according to claim 1, feature exist
In: the kettle wall bottom of the autoclave offers two groups of screw holes up and down, and every group of screw hole includes multiple screw holes, two groups of screw holes point
It Wei not large aperture screw hole group and small-bore screw hole group；The screw hole of big small-bore can be according to the connection of autoclave in two groups of screw holes
Mode is arbitrarily selected, and the screw hole that do not select is closed with pipe plug；
Preferably, it selects between the screw hole and connection pipeline that carry out connection through flanged joint, is changed by adjusting the flange
The length and internal diameter of the connection pipeline；
Preferably, the internal diameter of the connection pipeline is 50-200mm；It is further preferred that the internal diameter of the connection pipeline is 80-
120mm；
Preferably, the cross over pipe road is provided with temperature sensor probe and pressure sensor for monitoring temperature and pressure
Probe.
3. more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices according to claim 2, feature exist
In: the aperture of the screw hole of the small-bore screw hole group is 50-100mm；The aperture of the screw hole of the large aperture screw hole group is 100-
200mm。
4. more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices according to claim 1 or 2, special
Sign is: the autoclave is cylindrical three-dimensional tank reactor；
Preferably, the autoclave is equipped with perfect gas handling system, exhaust system, temperature monitoring system, pressure monitoring
System, data collection system, feed liquor system and drainage system.
5. more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices according to claim 1 or 2, special
Sign is: the autoclave is through in kettle by its kettle top is laid with a well；The well includes producing well, injection well or sight
Well logging.
6. more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices according to claim 1 or 2, special
Sign is: more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices are placed in when carrying out simulation exploitation
In closed workshop equipped with refrigeration equipment, temperature control range is -15 DEG C to 50 DEG C.
7. more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices according to claim 1-6,
It is characterized by: the quantity of the autoclave is 5, including 1 central reaction kettle and 4 secondary reacting kettles；The center
Reaction kettle is interconnected with the secondary reacting kettle respectively；The secondary reacting kettle is successively connected in series；
Preferably, during being depressured exploitation simulated experiment, the central reaction kettle is through in kettle by its kettle top is laid with one
Producing well, the producing well connection extraction well conduit are used to carry out hydrate in kettle individual well decompression exploitation；The secondary reacting kettle
It is through in kettle by its kettle top and is laid with an inspection well, for studying pressure field variation in recovery process, fluid flowing and sinking
Product object Transport；
Preferably, during heat injection, gas injection enhanced recovery simulated experiment, the central reaction kettle is through at cloth in kettle by its kettle top
Equipped with an injection well, the secondary reacting kettle is through in kettle by its kettle top is laid with an inspection well or producing well, for studying
It injects the flowing law of fluid and to decomposition of hydrate/regeneration process affecting laws, evaluates production efficiency；
Preferably, the autoclave volume is 200L-250L.
8. any one of claim 1-7 more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices are in Cheng Zang
Application in simulated experiment.
9. any one of claim 1-7 more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices are being depressured
Application in exploitation simulated experiment.
10. any one of claim 1-7 more kettle interconnection type Gas Hydrate Deposition/exploitation analogue simulation devices are being infused
Application in heat, gas injection enhanced recovery simulated experiment.
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