CN109923281A - Method and system for the method for methane decomposition hydrate, system and equipment and for obtaining methane from methane hydrate - Google Patents
Method and system for the method for methane decomposition hydrate, system and equipment and for obtaining methane from methane hydrate Download PDFInfo
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- CN109923281A CN109923281A CN201780060662.XA CN201780060662A CN109923281A CN 109923281 A CN109923281 A CN 109923281A CN 201780060662 A CN201780060662 A CN 201780060662A CN 109923281 A CN109923281 A CN 109923281A
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- Prior art keywords
- methane
- gas
- stripping
- methane hydrate
- hydrate
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C50/00—Obtaining minerals from underwater, not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
- E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
- E02F3/9231—Suction wheels with axis of rotation parallel to longitudinal axis of the suction pipe
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/005—Equipment for conveying or separating excavated material conveying material from the underwater bottom
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
- E02F7/065—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators mounted on a floating dredger
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0099—Equipment or details not covered by groups E21B15/00 - E21B40/00 specially adapted for drilling for or production of natural hydrate or clathrate gas reservoirs; Drilling through or monitoring of formations containing gas hydrates or clathrates
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
Abstract
The method and system of methane is obtained for the method for methane decomposition hydrate (1), system and equipment and from methane hydrate (1), wherein remove the sea bed (2) containing methane hydrate, it transports to the feeding mechanism (3) at sea (O), and obtains methane from methane hydrate (1).
Description
Technical field
The present invention relates to for the method for methane decomposition hydrate, system and equipment and for obtaining from methane hydrate
The method and system of methane.
Background technique
The method and apparatus for having become known for obtaining methane from sea bed from 2014201875 A2 of JP.The equipment includes
Bit point of the drill, the bit point of the drill can be sunk in sea bed in the region in methane hydrate mineral deposit.Bit point of the drill includes adding
It thermal and is designed for, the seawater of heating is introduced into mineral deposit, so as to therefore by other of methane hydrate and sea bed
Component part separation.In addition, the equipment includes collection device, by means of the collection device by isolated methane hydrate or
Methane gas through generating is collected and is conveyed to the transport pipeline for leading to sea.However it has been confirmed that, the equipment
Operation is also energy-intensive due to required heating power.
Therefore, herein the disadvantage is that, this be expend, especially energy charge and/or under the conditions of it is expected a variety of
The income high to expectation.
Summary of the invention
Therefore, the present invention is based on following purpose, a kind of method, a kind of system and a kind of equipment is realized, is directed at least one
A disadvantages mentioned above is improved, and the methane hydrate mineral deposit in sea bed is decomposed particular by it with can be realized high energy efficiency, and
Energy balance when obtaining methane from methane hydrate is improved.
The purpose passes through the method, in claims 9 for methane decomposition hydrate described in claim 1
Describe for methane decomposition hydrate system, describe in claim 14 be used for remove methane hydrate equipment,
That describes in claim 31 is used for from the method for acquisition methane in methane hydrate and by describing in claim 35
The system for obtaining methane from methane hydrate realize.
It is in the method according to the present invention for methane decomposition hydrate, the sea bed containing methane hydrate is preferably mechanical
Ground is removed and is transported to processing unit, and the processing unit is preferably provided at sea near or above.By means of processing equipment,
Preferably the other components of methane hydrate and/or methane and the sea bed being stripped are separated.It preferably, will be by methane water
Close the mixture removing that object and other sea beds are constituted.
Preferably, the sea bed containing methane hydrate is removed with solid state of aggregation and is more preferably also gathered with solid
Collect state --- preferably together with methane that is possible, for example escaping during transportation --- transport to processing unit.It has been confirmed that
, the relationship of income and consuming is improved in this way, and methane gas institute is produced from methane hydrate more particularly to reduce
The energy charge needed.
Preferably, the transport of the sea bed containing methane hydrate is carried out by means of air method for improving.Air method for improving sheet
Body is known for example from 196 26 591C1 of DE.Preferably, in air method for improving, compressed air is blown into use
In the transport pipeline for transporting the sea bed to fall off, the density of material there be is reduced in this way, and is caused, quilt
The sea bed containing methane hydrate of removing moves upwards in transport pipeline.
Also it can be considered that, other gases, especially methane gas are optionally blown by advantageously substitution air.
It --- preferably under sea --- is not taken during removing and/or transport preferably for by methane hydrate
Measure with remaining sea bed and/or for forming methane from methane hydrate.Preferably, this is carried out in no instance
Kind measure, the measure are not caused in itself by removing and/or transporting.
Preferably, gas is not pumped into still undecomposed sea bed during removing and/or transport.Preferably, it is shelling
From and/or transport during heat is not input in sea bed targetedly, preferably in no instance carry out heat it is defeated
Enter, the heat input does not pass through removing and/or transport causes.Preferably, the fluid of heating is not pumped into sea bed.Especially
Preferably, heat is not input to targetedly in the sea bed containing methane hydrate.It has been confirmed that according to the present invention
Method in can abandon heat input and can reduce consuming in this way.It is particularly preferred that any object is not pumped
Enter into the still undecomposed sea bed containing methane hydrate.
Preferably, it would be possible to formed during stripping and/or release gas --- especially methane --- collect simultaneously
And it guides to processing unit.In this way, it can be improved income and reduce the risk of uncontrollable evolution of methane, it is so-called
Ejection.This ejection especially can be danger to floating feeding mechanism, run removing and the confession by the feeding mechanism
Answering device can include processing unit.
It can be considered that, this is carried out by means of gas receiving device activate always and/or effective in principle.
Preferably, it detects: whether forming and/or discharge gas, especially methane during stripping.
Preferably, gas receiving device is only just activated when detecting gas.Always gas activate and/or effective connects
Receiving unit can act on method in a manner of reducing income, such as in the following way: the gas receiving device can be easy
In abrasion.The gas receiving device can also add the lateral of the difficult unit being made of removing and/or gas collection equipment can
Polarization.
Removing is carried out preferably by mechanism for stripping, and the mechanism for stripping has the exfoliation tool of rotate driving.Exfoliation tool
Be preferably able to, by sea bed and adjacent sea bed containing methane hydrate --- the sea bed of the adjoining can yes or no contain methane
Hydrate --- removing is detached from.Exfoliation tool preferably includes cutting head.Exfoliation tool preferably includes carnassial tooth.Exfoliation tool
Advantageously there is drill bit.The receiving opening that the sea bed containing methane hydrate of removing preferably passes through exfoliation tool enters removing
It is directed in gas lift pipeline in tool and further preferably from it.Exfoliation tool preferably has substantially upper conical
Exterior contour, particularly preferably there is bit point of the drill.It reduces the risk that as a result: especially the lateral precipitous sea bed the case where
Under, peel-off device laterally removes.
Removing preferably by it is executing side by side and it is particularly preferred at least it is approximate adjacent to one another or the hole of part overlaid into
Row.Hole, which reaches, is preferably smaller than 200m depth in sea bed.
Mechanism for stripping preferably with feeding mechanism independently lateral movement.Mechanism for stripping is laterally transported preferably with respect to feeding mechanism
It is dynamic.This is carried out in a preferred design scheme by means of transport mechanism, the transport mechanism can include at least one into
To device, the feed arrangement is for example with propeller.
Preferably, on feeding mechanism by methane with containing methane hydrate sea bed or methane hydrate separate.Remaining
Sea bed is returned preferably via skirt pass is returned.
Advantageously, the method has following method and step:
Preferably, the sea bed containing methane hydrate is removed.
Preferably, it would be possible to formed during stripping and/or release gas --- especially methane --- collect simultaneously
And it is guided to sea.
Preferably, the sea bed containing methane hydrate of removing is transported by means of gas lift method to sea.
Preferably, methane is obtained from the sea bed containing methane hydrate by processing unit.In this regard, processing unit is preferably
Including gas separation equipment.
Preferably, the methane that --- preferably in gas separation equipment --- will acquire on feeding mechanism is mentioned for gas
Lifting method.
Preferably, remaining sea bed is returned from feeding mechanism by returning skirt pass.
The present invention also relates to one kind for methane decomposition hydrate, particularly for executing according to claim 1 to any in 8
The system of method described in.
Also the system according to the present invention that complete equipment can be regarded as includes processing unit.Processing unit is preferably provided with
Near sea or it is arranged at sea.The system according to the present invention preferably includes peel-off device, the peel-off device ---
Particularly preferably --- it can include gas collection equipment.In addition, the system according to the present invention is included in processing unit and removing
And/or the connecting line between gas collection equipment.
Removing and/or gas collection equipment preferably form the unit that can be positioned on sea bed.
Removing and/or gas collection equipment preferably include mechanism for stripping.Mechanism for stripping advantageously comprises exfoliation tool.Stripping
It is preferably hollowly constituted from tool and/or with connecting pipeline for the sea bed containing methane hydrate.Exfoliation tool is preferred
Ground includes receiving opening, passes through the receiving opening, it is preferable that the sea bed containing methane hydrate of decomposition is able to enter removing
In tool and more preferably then go through in connecting line.The exterior contour of exfoliation tool is preferably conically constituted.Especially
Preferably, exfoliation tool has bit point of the drill.
Mechanism for stripping preferably includes the rotary driver for driving exfoliation tool.
Removing and/or gas collection equipment include gas collection mechanism in a preferred design scheme.Gas collection
Mechanism preferably includes can activate and gas receiving device that is can disabling, and more preferably includes gas detector.Gas
Receiving device for example can be cylindrical or taper.Gas receiving device can activity and can disable performance enough pass through it is as follows
Mode is realized: gas receiving device can telescopically or concertina remove and/or move into.Gas receiving device is preferably
It can be referred to as baffle or protective cover.
Connecting line preferably includes the gas lift pipeline for the sea bed by means of gas transport containing methane hydrate.
Preferably, connecting line is flexible and allows to have relative motion between end and lower end at an upper portion thereof.
Processing unit preferably has gas separation equipment.In the gas separation equipment, preferably methane is hydrated
Object separates with remaining sea bed and/or forms methane by methane hydrate.
Preferably, methane hydrate targetedly separated with remaining sea bed and/or targetedly from methane water
It closes and forms the methane only progress at sea in object, carried out advantageously on feeding mechanism.
Preferably, gas collection mechanism and/or mechanism for stripping are laterally movable by means of transport mechanism, more specifically excellent
Choosing independently and is furthermore more preferably moved relative to feeding mechanism with feeding mechanism.Transport mechanism can be configured to feeding dress
It sets.Transport mechanism can respectively include propeller.
Preferably, pillar is equipped at unit.Pillar be preferably configured as torque pillar and preferably cause for from turn
The pedestal for the torque that dynamic driver starts.Pillar is preferably what length can be changed, preferably may be moved in and out.
Preferably, unit has gas pass through openings, for wearing for gas formed during stripping and/or release
Draw, the gas, which preferably passes through gas receiving device, collects --- especially methane --- via valve gear to gas separation equipment.
Multiple units formed respectively by removing and/or gas collection equipment can be equipped with.Automatically collision can be equipped with
Avoiding device, the collision avoidance apparatuses prevent the collision of multiple units.In this regard, it can be equipped with detector, the detector inspection
Survey the position of corresponding removing and/or gas collection equipment relative to feeding mechanism.Alternatively or additionally it is possible that by
Absolute position is detected in such as " global positioning system " and is influenced and/or is avoided collision for position.
Also referred to as the according to the present invention for decomposing or removing setting for methane hydrate of methane hydrate peel-off device
Standby includes the stripping head that can be driven around pivot axis, and the stripping head includes end face and sagittal plane.It is equipped in endface
The exfoliation tool of at least one end side and exfoliation tool that at least one radial direction is preferably again provided at sagittal plane.In addition,
Stripping head includes the receiving opening for receiving the whole component parts for the sea bed being stripped.
Methane hydrate peel-off device according to the present invention is accordingly used in, and in the region in mineral deposit, methane hydrate is connected
Other components with sea bed are removed.It is not proposed in methane hydrate peel-off device according to the present invention for targeted
The measure that ground separates methane hydrate with the other components of sea bed.
Receiving opening is preferably provided in the end face of stripping head.Thus, it is possible to particularly effectively receive by means of removing work
Tool loosens and the material of removing is to transport.
Stripping head preferably includes basic body, and the basic body forms end face and sagittal plane.
In a particularly preferred embodiment, endface be equipped with preferably with respect to pivot center rotational symmetry,
From end face bit point of the drill outstanding.The bit point of the drill prevents the undesirable lateral migration of drill bit, especially at precipitous face
The lateral migration can be worried in the case where decomposing sea bed.
In a particularly preferred design scheme of methane hydrate peel-off device, the end face of basic body is configured to have
It is preferred that the conical surface of the end plane angle at obtuse angle, the end plane angle particularly preferably between 180 ° and 90 °, more preferably at 175 ° and
Between 130 °, more preferably about 170 °.
Further preferably, the sagittal plane of basic body is also configured to the conical surface with the sagittal plane angle of preferred acute angle, described
Sagittal plane angle is particularly preferably between 5 ° and 30 °, is completely particularly preferably about 10 ° more preferably between 8 ° and 20 °.
In addition, methane hydrate peel-off device preferably includes overburden conveying device, the overburden conveying device with
Basic body is preferably directly connected on the rear side opposite with end face.Overburden conveying device is used for, by connecing from stripping head
It receives the received sea bed overburden that is open and is conveyed to conveyer, preferably convey overburden to the water surface by the conveyer.
To this in particular it is preferred that being equipped with the channel being connected to receiving opening and overburden conveying device in basic body.
Overburden conveying device is connect preferably by means of connector with the conveyer for being preferably configured as transport pipeline.?
This, overburden conveying device --- particularly preferably --- can be configured to, so that opposite with end face with basic body by it
The rigidity of general stability or stripping head that the connection for the rear side set improves stripping head is matched with desired value.
Transport pipeline in principle can be in a manner of being arbitrarily suitable for transporting the purpose of sea bed overburden especially also flexibly
It constitutes.
However it is particularly preferred that transport pipeline is formed by transporting the inside of pipeline.
The device of tubulose is indicated by " transporting pipeline ", the device of the tubulose also can satisfy to be set as being used for for this
The bearing function of the component of sea bed is removed, and is preferably able to rotate together with stripping head.
In order to which promotion of the stripping head after sinking to mineral deposit does not become difficult because drawing effect, one of basic body is particularly preferred
Improvement project includes the pass through openings between end side and rear side.It, can be between rear side and end side via the pass through openings
There is pressure balance.The possible danger for drawing effect is reduced by forming negative pressure in end side as a result,.It is opened by the perforation
Mouthful, if stripping head with by receiving opening per unit time compared with received overburden too quickly into sea bed,
Also it can simplify the sea bed that the methane hydrate including being stripped is received by receiving opening by bypassing effect.
One particularly preferred embodiment of methane hydrate peel-off device includes stripping head bogey, by means of stripping
Stripping head has been rotatably supported around pivot center from head bogey.Due to the special design scheme, the gravity of drill bit
Other reagencies that may be present all need not be received for example by drill string during operation, but can during operation at least
It is partly received by the stripping head bogey and is preferably importing directly into sea bed.To this --- particularly preferably
Ground --- stripping head bogey has at least three supporting legs.
On stripping head bogey --- particularly preferably --- equipped with the rotate driving for rotate driving stripping head
Device.Torque needed for rotate driving then need not be transmitted for example via drill string by the device of rotation driving being arranged distant from, but
It can be importing directly into stripping head or at least imported into drill string in its vicinity, thus, it is possible to be substantially reduced to act on drill string
Material load.
Stripping head bogey can include feed arrangement.Any following device is indicated by " feed arrangement ", by means of
Seawater can be placed in flowing along scheduled direction by described device.By means of the feed arrangement it is possible that methane hydrate
Peel-off device is migrated transverse to sea bed, as long as its component, such as stripping head and/or supporting leg are not engaged with sea bed.By means of feeding
Device --- especially when feed arrangement is configured to, so that the direction-agile of feeding and/or can be run independently of one another equipped with multiple
When feed arrangement --- the targeted orientation of methane hydrate peel-off device is carried out on sea bed.This is especially significant
, because methane hydrate peel-off device will preferably be used to remove sea in tightly next to each other or part overlaid hole
Bed.Detector --- particularly preferably --- can be equipped with to this, it for example can be flat relative to supply by means of the detector
Platform carries out position and determines.Addedly or as an alternative, methane hydrate peel-off device according to the present invention also can include that GPS is sensed
Device (Global Positioning SIt ystem), is possible thus according to the positioning of Longitude and latitude coordinates.
Particularly preferably methane hydrate equipment is implemented as follows mode, in said embodiment, stripping head carrying
Device includes at least one gas backplate, can will surround the area of space of stripping head at least partly by means of the gas backplate
Ground is optionally shielded with environment.It is avoided by shielding around the region of stripping head, escaping gas being capable of nothing in this region
Ground is hindered to reach in environment.More precisely, this gas can be collected by gas backplate and for example lead to fortune by being equipped with
It send the corresponding entrance of pipeline and reaches in the transport pipeline and be transported together with overburden.
Because not needing the gas shield when gas, especially methane gas are not present in the region around stripping head
Plate is equipped with gas detector in a particularly preferred embodiment of methane hydrate peel-off device according to the present invention,
The gas detector --- particularly preferably --- is arranged on stripping head load bearing equipment.The gas detector and gas protect
Plate effectively connects, so that the gas detector only activates in the case where there: detecting gas in the region around stripping head
Body.
It is used for from the method for obtaining methane in methane hydrate according to the present invention, by the sea bed containing methane hydrate
Removing, and overburden is by taking away and transporting towards the water flow that the water surface generates along transport pipeline.In order to generate water flow, in underwater
Methane gas is imported into transport pipeline.Because of the methane gas --- for example preferably --- it can be from the process of transport
It is obtained in the methane hydrate transported during operation, so can be just by one of methane gas during method carries out
Divide for transporting.Therefore, the other kinds of gas under pressure, example are provided in which can be avoided optional equipment and energy-intensive
Such as compressed air, to use known air method for improving between transporting the process runtime.
If --- as preferably ---, the methane gas importeding into transport pipeline comes from the acquisition process of progress,
It can only need, start transport process in the following way: gas being provided separately, under pressure being imported into transport first
In pipeline.It can be in principle herein any arbitrary gas, especially also can be compressed air.
However in order to avoid: have in inside of the oxygen of corrosiveness with compressed air arrival transport pipeline, and in order to
Reduce the danger of the strong exothermal reaction of transported component part and oxygen, it is preferred that by the methane gas under pressure
It imports to start transport process.In this regard, for example methane gas can be provided in individual pressure vessel.In order to start to be conveyed through
Methane gas is preferably provided in methane gas tank under the pressure of 0.1MPa to 0.5MPa, is compressed in preferred 3MPa by journey
Pressure into the range of 5MPa, and imported into transport pipeline.It is particularly preferred that methane gas pressure to be set to or adjust
It saves into, so that transporting the overburden of desired volume flow.
Also can regard as complete device it is according to the present invention for from methane hydrate obtain methane, particularly for
Executing system according to the method for the present invention includes: the mechanism for stripping for removing the sea bed containing methane hydrate；For transporting
The transport pipeline of the overburden of sea bed；Methane gas tank can preferably store in the methane gas tank to transport to land
Methane gas that is being transported or being obtained from overburden by process；It is connected to the fortune of methane gas tank and underwater
Send the gas piping of pipeline；And preferred valve mechanism, by the valve system, methane gas tank is optionally via gas piping
It is connect with transport pipeline.Process is being transported in needs by being provided separately --- as described hereinabove ---
Compressed gas when opening, a part for the methane gas that can be will acquire preferably by means of the equipment is transported for maintaining
Process.
Valve system is preferably able to be configured to, so that volume flow and/or pressure that methane gas is flowed into transport pipeline are
Variable.Due to the measure it is possible that passing through the volume flow and/or pressure for changing methane gas, the sea bed transported is influenced
The volume flow of overburden especially controls or regulates the volume flow under the meaning for realizing desired value.The latter is especially advantageous,
If --- as preferably --- equipped with the mechanism for detecting waste material upwards of movement per unit time, the inspection of preferred volume stream
Mechanism is surveyed, and --- as particularly preferably --- is configured to and is connected into valve system, so that valve system is realizing the volume flow phase
It is controllable in the sense that prestige value.
Detailed description of the invention
The present invention now should be according to the pure embodiment schematically illustrated further illustrates respectively in the accompanying drawings.Schematically show
Out:
Fig. 1 shows the view for being adapted for carrying out the system of the method according to the present invention for methane decomposition hydrate；
Fig. 2 shows the slightly more detailed views of a part of system shown in FIG. 1；
Fig. 3 shows the view of methane hydrate peel-off device according to the present invention；With
Fig. 4 shows the system according to the present invention for obtaining methane from methane hydrate.
Specific embodiment
By the system or complete equipment for methane decomposition hydrate 1 as shown in figs. 1 and 2, methane water will be contained
The sea bed 2 for closing object is removed and is transported to the feeding mechanism 3 at the M of sea (referring particularly to Fig. 1).Feeding mechanism 3 is in the reality shown
It applies in example as supply vessel.The supply vessel includes processing unit 8 other than component needed for this operation decomposition method, in institute
State being separately from other sections methane or methane hydrate and sea bed in processing unit.
By system, the mixture being made of methane hydrate 1 and remaining sea bed B is removed.Containing methane hydrate
Sea bed B removes with solid state of aggregation and with solid state of aggregation --- together with it is possible, for example leak during transportation
Methane --- transport to the feeding mechanism 3 at sea.
Transport is carried out by means of gas lift method.For said purpose, connecting line 9 is blowed air into underwater
In, more specifically it is blown into air first in the incipient stage.Hereafter, it can be additionally or alternatively blown into methane, as long as
The methane is provided under pressure needed for thus.It is also possible that the methane under pressure is provided first, until passing through removing
Object and then to removing, the processing of sea bed containing methane hydrate, generate the methane of sufficient amount at a pressure sufficient.
Under sea during removing and transport, without the measure for separating methane hydrate with remaining sea bed.
Also without the measure for forming methane by methane hydrate.Preferably, following measure, institute are carried out in no instance
It states measure and does not pass through removing and/or transport decision itself.During removing and/or transport, also gas is not pumped into sea bed,
And without targeted heat input, heat input is carried out in no instance, and the heat input does not pass through
Removing and/or transport determine.Preferably, the fluid of heating is not pumped into sea bed.It is particularly preferred that heat is not directed to
It is input in the sea bed 2 containing methane hydrate to property.Also any substance is not pumped into still undecomposed containing methane hydrate
In sea bed.
Possible being formed during stripping and/or release gas --- especially methane --- is by means of gas collection machine
Structure 4 is collected and by means of the guidance of connecting line 9 to feeding mechanism 3.For said purpose, it is visited by means of gas detector 12
It surveys, whether there is gas --- especially methane --- to be formed and/or discharged during stripping.Gas collection mechanism 4 includes that can activate
And the gas receiving device 5 that can disable.Gas receiving device 5 only activates in the case where there: detecting gas.Gas receives
Equipment 5 in the illustrated embodiment cylindricality and it is telescopically extensible and move into.
Removing is carried out by mechanism for stripping, and the mechanism for stripping has the exfoliation tool of pivotable drive, the removing work
Tool includes drill bit 6.As seen from Figure 2, it includes carnassial tooth 17 that drill bit 6 is upper on the downside of its side and its, is had substantially upper conical
Exterior contour and be equipped with bit point of the drill 21.Drill bit 6 is connect by means of conveying device 7 and connector 20 with connecting line 9.
Drill bit 6 and gas collecting mechanism 4 belong to the unit 14 that can be positioned on sea bed B.Unit 14 is unrelated with feeding mechanism 3
Ground and transportable relative to feeding mechanism 3.For said purpose, be equipped with transport mechanism 15, the transport mechanism be configured into
To device.Equipped with the position detecting mechanism being not shown in the accompanying drawings, the position detecting mechanism detection unit 14 is relative to supply
The position of the position of device or the unit in global positioning system.
Pillar 16 is equipped at unit 14.Pillar is configured to torque pillar and provides for by rotary driver 11
Torque pedestal.
The connecting line 9 between feeding mechanism 3 and unit 14 is shown in FIG. 1.
Fig. 1 also shows that drill bit 6 includes receiving opening 10, passes through the receiving opening, the sea containing methane hydrate of decomposition
Bed, which is able to enter first in conveying device 7 and then via connector 20, to be entered in connecting line 9.
Rotary driver 11 for driving drill bit 6 is equally shown in Fig. 2.
The processing unit 8 being arranged on feeding mechanism 3 includes gas separation equipment 13.In the gas separation equipment 13
Methane hydrate 1 is separated with remaining sea bed and forms methane E from methane hydrate 1.The energy in the gas separation equipment
The enough temporary methane for having generated and having collected in advance.
Skirt road 18 is schematically illustrated go back in Fig. 1.Described time skirt road is from processing unit 8 to being back to few guidance to the water surface
Under, preferably of up near sea bed and for leading back the waste material separated with methane hydrate.
Sea bed of the arrow P1 symbolically containing methane hydrate in Fig. 1 by means of gas lift method transport.Arrow
Head P2 symbolically is continued the sea bed containing methane hydrate by connecting line 9 to be transferred to gas separation equipment 13.Arrow P3
Methane E is imported into connecting line 9 from gas separation equipment 13 to realize methane method for improving by symbolically.Arrow P4 is used
Symbol indicates that remaining sea bed is separated facility 13 from gas to be led back by going back to skirt road 18.Arrow P6 symbolically pillar 16
The property of may be moved in and out.Arrow P7 symbolically, which is configured to the flexible of the gas receiving device 5 of baffle, may move into and move
Property out.The sea bed containing methane hydrate of separation is received conveying device 7 by receiving opening 10 by arrow P8 symbolically
Inside in.The rotational motion of arrow P9 symbolically drill bit 6.
The embodiment indicated as a whole with 300 in Fig. 3 is used to remove the methane hydrate mineral deposit L in sea bed B.It shows
Equipment include stripping head 301, the stripping head can surround pivot center D rotate driving.Stripping head includes end face 302, described
End face has radius R, and the methane hydrate mineral deposit L to be removed is directed toward in the end face at runtime, and including being connected to end face
302 sagittal plane 303, the sagittal plane have height H.It is provided with and multiple is distributed on the radius R of end face at end face 302
End side exfoliation tool 304, the exfoliation tool can for example be configured to sea bed the tooth removed usually in the form of block.
In addition, the radial exfoliation tool 305 being distributed on the ring week of stripping head 301 is equipped at sagittal plane 303, it is described
Exfoliation tool can be configured to the tooth for removing sea bed usually in the form of block again.Radial exfoliation tool 305 preferably exists
It is arranged on the entire height H of sagittal plane.
In addition, stripping head 301 includes prominent from end face 302 in rotational symmetry preferably with respect to pivot center D at end face 302
Bit point of the drill 306 out.The bit point of the drill methane hydrate peel-off device run when relative to work head 301 in advance into
Enter into the sea bed B to be removed, and during stripping process reduce work head 301 lateral " removal " danger.
In addition, work head includes the receiving opening 307 for the overburden of sea bed B, the overburden includes all to want
Component part present in the region of the methane hydrate mineral deposit L of removing.Therefore, methane is not only received by receiving opening 307
Hydrate, and whole other components are received, the whole other components are before entering receiving opening 307
Do not leak.
Receiving opening 307 is approximate to be extended on the entire radius of sagittal plane, as long as the radius is not by bit point of the drill 306
It covers.It is to be understood that the exfoliation tool 304 of end side extends only to bit point of the drill 306.
Stripping head 301 includes basic body 308, forms end face 302 and sagittal plane 303 by the basic body.End face is configured to
The conical surface of end plane angle α 1 with about 170 ° of obtuse angle.Sagittal plane is configured to the sagittal plane angle [alpha] 2 with about 10 °
The conical surface of acute angle.
It is equipped with transport channel 309 in basic body 308, will go into receiving opening 307 by the transport channel
Material is conveyed to overburden conveying device 310, and the overburden conveying device and basic body 308 are opposite with end face 302
It is connected on rear side 311.310 one side of overburden conveying device is used to improve the stability of stripping head and/or matches it rigidly
In desired value.On the other hand, overburden conveying device is used for, and sea bed overburden is conveyed to transport pipeline 312.In this regard, removing
Object conveying device 310 is connect by means of connector 313 with transport pipeline 312.
In the illustrated embodiment, transport pipeline 312 is formed by the inside of hollow transport pipeline 314, the transport
Pipeline reaches the platform 315 on the O of sea before connector 313, the platform pass through herein ship shape at.
In addition, basic body 308 includes one or more pass through openings 316, the pass through openings are in end side 302 and rear side
Extend between 311.Such as the double-head arrow symbolically by describing within pass through openings 316, via pass through openings
316 can appear in the balance of pressure present on end side 302 and rear side 311.Therefore prevent stripping head 301 that sea bed is firmly sucked
B, this, which makes to be promoted, becomes difficult or even can not.Due to pass through openings 316 --- stripping head is quickly especially being pushed into methane water
When closing in the L of object mineral deposit --- simplify the reception that overburden passes through receiving opening 307.
In addition, the embodiment of methane hydrate peel-off device being shown in FIG. 3 includes stripping head bogey 317, borrow
Help the stripping head bogey, stripping head 301 can rotationally be supported around pivot center D.In this regard, reality shown in figure
It applies in example, transports the device of rotation driving 318 that pipeline 314 penetrates engine, can will be shelled by means of the device of rotation driving
It is placed around from first 301 in the rotation of pivot center D.
Device of rotation driving 318 is supported on the lateral bearing part 319 of work head bogey 317.Its perpendicular to turn
The generally circular shape for being D1 with diameter in the view of shaft line D, the diameter are greater than the maximum gauge of stripping head 301
D2。
Multiple supporting legs 320 are provided with radially outer at lateral bearing part 319, wherein in figure only for general view
Show two.Supporting leg 320 can be constituted telescopically.On the one hand the supporting leg is used for stripping head bogey 317
Support is on sea bed B, and on the other hand for reagency to be imported into sea bed B, the reagency is in methane hydrate peel-off device
It is for example generated by the rotation of stripping head when operation.
Furthermore methane hydrate peel-off device 300 includes multiple feed arrangements 321, wherein only showing two in figure.Into
It is configured to device 321, enables and generate water flow by the feed arrangement, as long as so that methane peel-off device --- removing
First 301 and stripping head bogey 317 no longer contacted with sea bed B --- can relative to sea bed migrate and position.Feeding dress
Setting 321 for example can include propeller drives to this, and the propeller drives can manipulate with being separated from each other.In addition, feeding
Device 321 is configured to and/or is arranged to, so that the direction of the water flow generated respectively is variable.It can be equipped with following mechanism, borrowed
The controllable feed arrangement 321 of the mechanism is helped, so that methane hydrate peel-off device is possible relative to the relative positioning of platform
's.Also it can be equipped with GPS sensor, so that being possible according to the localizability of longitude and latitude.It is furthermore possible to consider, by putting down
Platform runs the localizability by means of feed apparatus of multiple methane hydrate peel-off devices and methane hydrate peel-off device
For constituting the anti-collision system of multiple methane hydrate peel-off devices.
In lateral bearing part 319 towards gas backplate 322 is equipped on the side of sea bed B, by means of the gas backplate
The area of space around stripping head 301 can be shielded.In this regard, gas backplate 322 includes multiple annulars in cross-section, flexible
Nested guard portion 323,324,325.In the flexible state moved into, stripping head 301 the downside of lateral bearing part 319 it
Between laterally expose generally toward environment, and in the flexible removal state of guard portion, stripping head 301 is in lateral bearing part
It is at least substantially laterally surrounded by guard portion 323,324,325 under 319, and thereby extends to sea in gas backplate 322
The area of space around work head 301 at least partly, even at least can be almost entirely shielded when the surface of bed B.By
It is avoided in gas backplate 322, it is may being formed in the region of stripping head 301 during stripping process or from methane hydrate mine
Leaked gas uncontrollably escapes into environment in bed L.
In order to transport the gas collected by gas backplate 322, it is equipped with gas transfer pipeline 326.The gas transfer pipeline
It is led in the region of device of rotation driving 318 in the space shielded by gas backplate 322 and via not shown in the figure
Rotary seal is connected to transport pipeline 312, so that the gas is guided from sea bed to platform 315 together with other overburdens.
Because of ability when gas backplate 312 only actually has gas to escape or occur in the region around stripping head 301
It needs, so being equipped with gas detector 327 in the region of device of rotation driving 318 on lateral bearing part 319.Gas backplate
322 are configured to and effectively connect with gas detector 327, so that the guard portion 323,324,325 telescopically constituted
It removes and only carries out in the case where there: detecting gas.The gas is understood that more particularly to be methane.
The system according to the present invention for being indicated as a whole with 400 in Fig. 4 or there are also for from methane hydrate
The equipment for obtaining methane includes floating feeding mechanism 401.The feeding mechanism stretches out water surface O.This external application of the feeding mechanism
In providing and operating the sightless section in figure, the section can be with 402 split of transport pipeline, and the transport pipeline is from entirety
The upper stripping off device for removing sea bed B indicated with 403 extends to feeding mechanism 401, and there are methane hydrates 1 in sea bed
With possible also gaseous methane G.
Stripping off device 403 includes device of rotation driving 404, and the device of rotation driving has shell 405, in the shell
In be equipped in Fig. 4 sightless engine rotary driver.Rotary driver is used for the rotation of mechanism for stripping 406, described
Mechanism for stripping is configured to can be around the stripping head 407 for the axis rotation for being approximately perpendicular to sea bed stretching, extension.The stripping head has base
This upper conical exterior contour, the exterior contour have bit point of the drill 408.Due to the exterior contour and bit point of the drill of taper
408 avoid, and laterally " remove " in the case that stripping head 407 especially laterally declines in the region of removing in sea bed.
Stripping head 407 has the receiving opening 409 for reaching bit point of the drill 408 in its conical surface.The receiving opening is used for
Receive the sea bed overburden to be fallen off by means of stripping head 407.
Stripping off device preferably includes the standing leg 410 that extension type changes length, the standing furthermore according to arrow P1
Leg is laterally hinged on shell 405 and via the standing leg, and shell 405 is supported on sea bed B.Standing leg 410 is also used
The reagency in sea bed B must be imported due to the rotation of stripping head 407 causes in receiving.
It is furthermore possible to be equipped with feed arrangement 411 on shell, it can pivot preferably about the axis for being approximately perpendicular to sea bed stretching, extension
Turn ground.By the feed arrangement 411, water flow can be generated respectively, so that the water flow can be used in entire stripping off device phase
Positioning for sea bed, if stripping off device 403 not from sea bed promoted to make stripping head 407 and standing leg 410 not with sea
Bed B contact.In order to generate water flow, feed arrangement can include can engine-driven propeller.Lift-off can pass through such as lower section
Formula carries out: stripping off device 403 passes through acting on feeding mechanism 401 or by means of being not shown in the figure to transport pipeline 402
Independent hoisting mechanism, such as rope is by general increase.
It --- as preferably --- is flexible if transport pipeline 402, is not migrating supply unit 401 simultaneously
Under the conditions of being capable of the laterally displaced or entire stripping off device 403 of rotation in the preset range of flexibility by transport pipeline 402.This
It is especially advantageous, because feeding mechanism 401 need not all migrate together in migration stripping off device 403 every time.It migrates together
Necessity can improve consuming in the case where there: feeding mechanism 401 is in the operation of the device floating with other, such as supply vessel
In connection.
In addition, shell 405 can include gas shielding device 412.The gas shielding device is preferably able to from shell 405
Downside be selectively moved to sea bed so that the gas shielding device in removal state will surround stripping head 411 area
Domain and other environment --- together with downside of shell 405 --- shield.Gas shielding device to this for example can telescopically or
Constitute to concertina, and including motor mechanisms, be suitable for causing to drop under the meaning of arrow P2 on sea bed and
It is promoted from sea bed.
Transport pipeline 102 have feeding mechanism side end regions 413, the end regions via intake line 414 with
Processing unit 415 connects.Processing unit 415 is for separation of methane hydrate 1 and by the methane gas discharged and sea bed
Remaining overburden separation.The processing unit includes methane gas tank 416, and storage is by means of place in the methane gas tank
Manage the methane gas that device 415 generates.In addition, being equipped with waste material in processing unit 415 goes back to skirt road 417, by means of described useless
Expect back that skirt road leads back the overburden of sea bed again after separation of methane hydrate to sea bed.
The shell 405 of stripping off device 403 can also include gas passage 418, and the gas passage can be by means of first
Valve system 419 is connect with transport pipeline 402.Due to existing barometric gradient, methane gas oneself is flowed into transport pipeline 402
In.If during stripping process in the region of stripping head 407 discharge gas, especially methane gas and it is described release by
It is detected in gas detector 422, then first by means of gas shielding device 412 by migrating downward into as signified by arrow P2
Property indicate as relative to environment shielding surround stripping head 407 region.Thus it avoids, escaping gas uncontrollably reaches
Cause the sinking of floating feeding mechanism in environment and in the worst cases.The gas of generation is imported via gas passage 418
Into methane gas tank 416.Because gas shielding device 412 only drops to sea bed in the case where detecting gas evolution, that
The gas shielding device does not interfere stripping process, generates as long as no gas.
Methane gas tank 416 is connect via methane gas pipeline 420 with transport pipeline 402.In this regard, methane gas pipeline
420 lead under the water surface in transport pipeline 402.Equipped with the second valve system 421, body can be influenced by means of second valve system
Product stream.Furthermore it is possible to be equipped with compressor set, the pressure of methane gas, the first can be influenced by means of the compressor set
Alkane gas is imported into transport pipeline 402.Typically, methane gas is in the pressure of 0.1MPa to 0.5MPa in methane gas tank
Under power.By means of compressor set, the pressure rise of the methane gas in transport pipeline 402 will be imported into typically 3MPa extremely
5MPa.It is furthermore possible to be equipped with volume flow testing agency 423, the volume flow testing agency detection is transported in transport pipeline 402
Decomposition sea bed volume flow, and accordingly realize decompose sea bed actual value volume flow in the sense that influence valve machine
Structure.
Reference signs list:
1 methane hydrate
2 sea beds containing methane hydrate
3 feeding mechanisms
4 gas collection mechanisms
5 gas receiving devices
6 drill bits
7 conveying devices
8 processing units
9 connecting lines
10 receiving openings
11 rotary drivers
12 gas detectors
13 gas separation equipments
The unit of 14 removings and/or gas receiving device
15 transport mechanisms
16 pillars
17 carnassial tooths
18 times skirt roads
19 gas pass through openings
20 connectors
21 bit point of the drill
300 methane hydrate peel-off devices
301 stripping heads
302 end faces
303 sagittal planes
The exfoliation tool of 304 end sides
305 radial exfoliation tools
306 bit point of the drill
307 receiving openings
308 basic bodies
309 transport channels
310 overburden conveying devices
311 rear sides
312 transport pipelines
313 connectors
314 transport pipeline
315 platforms
316 pass through openings
317 stripping heads/bogey
318 device of rotation driving
319 lateral bearing parts
320 supporting legs
321 feed arrangements
322 gas backplates
323,324,325 guard portions
326 gas transfer pipelines
327 gas detectors
400 systems, equipment
401 feeding mechanisms
402 transport pipelines
403 stripping off devices
404 device of rotation driving
405 shells
406 mechanism for stripping
407 stripping heads
408 bit point of the drill
409 receiving openings
410 standing legs
411 feed arrangements
412 gas shielding devices
413 end regions
414 intake lines
415 processing units
416 methane gas tanks
417 waste materials go back to skirt road
418 gas passages
419 first valve systems
420 methane gas pipelines
421 second valve systems
422 gas detectors
423 volume flow testing agencies
B sea bed
The lower end of A1 supply line
The upper end of A2 supply line
M methane
The sea O, the water surface
P1 is to P9 arrow
D pivot center
D1, D2 diameter
H height
L methane hydrate mineral deposit
R radius
1 end plane angle of α
2 sagittal plane angle of α
G methane gas
1 methane hydrate
S stream
Claims (40)
1. the method that one kind is used for methane decomposition hydrate (1),
The sea bed (2) containing methane hydrate is wherein removed, and is transported to the feeding mechanism (3) at sea (O).
2. according to the method described in claim 1,
It is characterized in that,
The transport is carried out by means of gas lift method, preferably air method for improving and/or methane method for improving.
3. method according to claim 1 or 2,
It is characterized in that,
During removing and/or transport, without for by the methane hydrate (1) separated with remaining sea bed and/or from
The measure of methane hydrate formation methane.
4. method according to any one of the preceding claims,
It is characterized in that,
Without targetedly by heat input into the sea bed (2) containing methane hydrate.
5. method according to any one of the preceding claims,
It is characterized in that,
It collects possible being formed during stripping and/or release gas and guides to the feeding mechanism (3).
6. method according to any one of the preceding claims,
It is characterized in that,
Detection: gas whether is formed and/or discharged during stripping, and and if only if just activates the gas when detecting gas
Receiving device (5).
7. method according to any one of the preceding claims,
It is characterized in that,
Removing is carried out by mechanism for stripping, and the mechanism for stripping has the exfoliation tool of rotate driving, preferably drill bit (6).
8. method according to any one of the preceding claims,
It is characterized in that,
It is described to peel through the drilling progress connected side by side.
9. it is a kind of for methane decomposition hydrate, particularly for executing method according to any one of claim 1 to 8
System,
The system includes processing unit (8), can be by methane hydrate and methane and removing by means of the processing unit
The other components of sea bed separate；
Mechanism for stripping can remove the sea bed containing methane hydrate by means of the mechanism for stripping；With
Connecting line (9) between the processing unit (8) and the mechanism for stripping.
10. system according to claim 9,
It is characterized in that,
The mechanism for stripping includes drill bit (6), and the drill bit preferably has receiving opening (10) and preferably has rotary driver
(11)。
11. system according to claim 9 or 10,
It is characterized in that,
Equipped with gas collection mechanism (4), preferably there is the reception of can activate and gas that is can disabling to set for the gas collection mechanism
Standby (5) and gas detector (12).
12. system according to claim 11,
It is characterized in that,
The mechanism for stripping and the gas collection mechanism (4) form the one of the unit (14) that can be positioned on the sea bed (B)
Part.
13. the system according to any one of claim 9 to 12,
It is characterized in that,
The processing unit (8) has gas separation equipment (13).
14. a kind of methane hydrate peel-off device (300),
With the stripping head (301) that can surround pivot center (D) rotate driving, the stripping head includes end face (302) and radial direction
Face (303),
The exfoliation tool (304) of at least one end side is wherein equipped on the end face (302) and preferably in the sagittal plane
(303) it is equipped at least one radial exfoliation tool (305),
Wherein the stripping head (301) includes for receiving the receiving opening for the sea bed being stripped (307).
15. methane hydrate peel-off device according to claim 14,
It is characterized in that,
The receiving opening (307) is arranged in the end face (302).
16. methane hydrate peel-off device according to claim 14 or 15,
It is characterized in that,
The stripping head (301) includes basic body (308), and the basic body forms the end face (302) and the sagittal plane
(303)。
17. methane hydrate peel-off device described in any one of 4 to 16 according to claim 1,
It is characterized in that,
Preferably with respect to pivot center (D) in rotational symmetry equipped with outstanding from the end face (302) on the end face (302)
Bit point of the drill (306).
18. methane hydrate peel-off device described in any one of 4 to 17 according to claim 1,
It is characterized in that,
The end face (302) is configured to the conical surface of the end plane angle (α 1) with preferred obtuse angle, and the end plane angle preferably exists
It is completely particularly preferably about 170 ° particularly preferably between 175 ° and 130 ° between 180 ° and 90 °.
19. methane hydrate peel-off device described in any one of 4 to 18 according to claim 1,
It is characterized in that,
The sagittal plane (303) is configured to the conical surface with the sagittal plane angle of preferred acute angle, and the sagittal plane angle preferably exists
It is completely particularly preferably about 10 ° particularly preferably between 8 ° and 20 ° between 5 ° and 90 °.
20. methane hydrate peel-off device described in any one of 4 to 19 according to claim 1,
It is characterized in that
The methane hydrate peel-off device (300) includes overburden conveying device (310), the overburden conveying device and institute
Basic body (308) is stated to connect on the rear side (311) opposite with the end face.
21. methane hydrate peel-off device according to claim 20,
It is characterized in that,
It is equipped in the basic body (308) and is connected to the receiving opening (307) and the overburden conveying device (310)
Transport channel (309).
22. methane hydrate peel-off device described in any one of 4 to 21 according to claim 1,
It is characterized in that,
The overburden conveying device (310) connect preferably by means of connector (313) with transport pipeline (312).
23. methane hydrate peel-off device according to claim 22,
It is characterized in that,
The transport pipeline (312) is formed by the inside of hollow drill string (314).
24. methane hydrate peel-off device described in any one of 4 to 23 according to claim 1,
It is characterized in that,
The basic body (308) includes at least one pass through openings between the end side (302) and the rear side (311)
(316)。
25. methane hydrate peel-off device described in any one of 4 to 24 according to claim 1,
It is characterized in that,
Equipped with stripping head bogey (317), by means of the stripping head bogey, the stripping head (301) is around described
Pivot center (D) rotatably supports.
26. methane hydrate peel-off device according to claim 25,
It is characterized in that,
Equipped with the device of rotation driving (318) for stripping head (301) described in rotate driving, the device of rotation driving is supported on
On the stripping head bogey (317).
27. the methane hydrate peel-off device according to claim 25 or 26,
It is characterized in that,
The stripping head bogey (317) has multiple supporting legs (320), preferably at least three supporting legs (320).
28. methane hydrate peel-off device described in any one of 4 to 27 according to claim 1,
It is characterized in that,
The stripping head bogey (317) includes at least one feed arrangement (321).
29. methane hydrate peel-off device described in any one of 4 to 28 according to claim 1,
It is characterized in that,
The stripping head bogey (317) includes at least one gas backplate (322), can be selected by means of the gas backplate
Selecting property will around the stripping head (301) area of space at least partly with environment shielding.
30. methane hydrate peel-off device according to claim 29,
It is characterized in that,
Equipped with the gas detector (327) being preferably provided on the stripping head load bearing equipment (317).
31. method of the one kind for obtaining methane from methane hydrate (1),
It is characterized in that,
Wherein remove the sea bed (B) containing methane hydrate and the water flow by generating in transport pipeline (402) towards the water surface (O)
(S) overburden is taken away and transports,
Methane gas is wherein imported into the transport pipeline (402) in order to generate the water flow (S) at the water surface (O)
In.
32. according to the method for claim 31,
It is characterized in that,
Methane gas is at least partly generated from the methane hydrate (1) transported during the transport process carries out.
33. the method according to claim 31 or 32,
It is characterized in that,
In order to start the transport process, the methane gas provided under stress is imported into the transport pipeline (402).
34. the method according to any one of claim 31 to 33,
It is characterized in that,
The methane gas is imported into the transport pipeline under the pressure of 3MPa to 5MPa.
35. a kind of system for obtaining methane from methane hydrate,
The system has the mechanism for stripping (406) for removing the sea bed (B) containing methane hydrate,
For transporting the transport pipeline (402) of the overburden of sea bed,
Methane gas tank (416) can be stored being transported in the methane gas tank or be obtained from the overburden
Methane gas, and
It is connected to the methane gas tank (416) and is connected to the methane of the transport pipeline (402) at the water surface (O)
Gas piping.
36. system according to claim 35,
It is characterized in that,
Equipped with valve system (421), by the valve system, the methane gas tank (416) is selectively via the flue
Road (420) is connect with the transport pipeline (402).
37. system according to claim 36,
It is characterized in that,
The valve system (421) is configured to so that methane gas be flowed into volume flow in the transport pipeline (402) and/or
Pressure is variable.
38. the system according to claim 37,
It is characterized in that,
Equipped with the mechanism for detecting waste material upwards of movement per unit time, preferred volume stream testing agency (423).
39. the system according to claim 38,
It is characterized in that,
The mechanism is configured to and connects into the valve system (421), so that the valve system (421) is realizing volume flow
In the sense that can be manipulated by desired value.
40. the system according to any one of claim 35 to 39,
It is characterized in that,
The mechanism for stripping (406) is a part of stripping off device (403), and the stripping off device includes at least one detection of gas
Device and gas shielding device (412) can will surround the region of the mechanism for stripping (406) by means of the gas shielding device
It is at least partly shielded relative to environment.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016118671.6A DE102016118671A1 (en) | 2016-09-30 | 2016-09-30 | Device for decomposing methane hydrate for the purpose of producing methane |
| DE102016118665.1A DE102016118665A1 (en) | 2016-09-30 | 2016-09-30 | Method and apparatus for decomposing methane hydrate |
| DE102016118671.6 | 2016-09-30 | ||
| DE102016118662.7 | 2016-09-30 | ||
| DE102016118665.1 | 2016-09-30 | ||
| DE102016118662.7A DE102016118662A1 (en) | 2016-09-30 | 2016-09-30 | Method and apparatus for recovering methane from methane hydrate |
| PCT/EP2017/070141 WO2018059811A1 (en) | 2016-09-30 | 2017-08-09 | Method, system, and device for decomposing methane hydrate and method and system for obtaining methane from methane hydrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109923281A true CN109923281A (en) | 2019-06-21 |
Family
ID=59569325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780060662.XA Pending CN109923281A (en) | 2016-09-30 | 2017-08-09 | Method and system for the method for methane decomposition hydrate, system and equipment and for obtaining methane from methane hydrate |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7014784B2 (en) |
| CN (1) | CN109923281A (en) |
| WO (1) | WO2018059811A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282707B (en) * | 2020-12-18 | 2021-11-19 | 福州大学 | Sea natural gas hydrate barrel type mining device and method thereof |
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| US5950732A (en) * | 1997-04-02 | 1999-09-14 | Syntroleum Corporation | System and method for hydrate recovery |
| JP2011084896A (en) * | 2009-10-14 | 2011-04-28 | Shimizu Corp | Production device of methane gas from methane hydrate and production process of methane gas from methane hydrate by use of the same |
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|---|---|---|---|---|
| DE19626591C1 (en) | 1996-07-02 | 1998-04-16 | Wirth Co Kg Masch Bohr | Process for drilling boreholes in the soil with discharge of the drill material according to the air lifting process and drilling tool for applying the process |
| RO119637B1 (en) | 2002-06-03 | 2005-01-28 | Petru Baciu | Process and installation for extracting pit gas from sea bottom |
| JP2006037518A (en) | 2004-07-27 | 2006-02-09 | Mitsubishi Heavy Ind Ltd | Gas hydrate collecting method and gas hydrate collecting system |
| US20120181041A1 (en) * | 2011-01-18 | 2012-07-19 | Todd Jennings Willman | Gas Hydrate Harvesting |
| US20120193103A1 (en) * | 2011-01-28 | 2012-08-02 | The Texas A&M University System | Method and apparatus for recovering methane from hydrate near the sea floor |
| JP6168820B2 (en) | 2013-04-01 | 2017-07-26 | 寄神建設株式会社 | Methane hydrate collector |
| JP2016138402A (en) | 2015-01-28 | 2016-08-04 | 三井造船株式会社 | Hydrate recovery device and recovery method |
| JP6530925B2 (en) | 2015-02-20 | 2019-06-12 | 古河機械金属株式会社 | Submarine Mineral Mining Equipment and Submarine Mineral Mining System |
| JP2016156187A (en) | 2015-02-24 | 2016-09-01 | 三井造船株式会社 | Water bottom excavation system and water bottom excavation method |
-
2017
- 2017-08-09 JP JP2019517339A patent/JP7014784B2/en active Active
- 2017-08-09 WO PCT/EP2017/070141 patent/WO2018059811A1/en active Application Filing
- 2017-08-09 CN CN201780060662.XA patent/CN109923281A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5950732A (en) * | 1997-04-02 | 1999-09-14 | Syntroleum Corporation | System and method for hydrate recovery |
| JP2011084896A (en) * | 2009-10-14 | 2011-04-28 | Shimizu Corp | Production device of methane gas from methane hydrate and production process of methane gas from methane hydrate by use of the same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018059811A1 (en) | 2018-04-05 |
| JP7014784B2 (en) | 2022-02-01 |
| JP2019529752A (en) | 2019-10-17 |
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