CN207920587U - A kind of passageway bridge for sea bed gas hydrate fluidisation exploitation - Google Patents
A kind of passageway bridge for sea bed gas hydrate fluidisation exploitation Download PDFInfo
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- CN207920587U CN207920587U CN201820342167.XU CN201820342167U CN207920587U CN 207920587 U CN207920587 U CN 207920587U CN 201820342167 U CN201820342167 U CN 201820342167U CN 207920587 U CN207920587 U CN 207920587U
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- passageway bridge
- screw
- tube
- slurry
- pump
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Abstract
The utility model discloses a kind of passageway bridge for sea bed gas hydrate fluidisation exploitation, passageway bridge is mounted on the upper end of the lower end and screw motor of screw pump, connect with the external screw thread of continuous bimetallic tube inner tube, connect with the internal thread of continuous bimetallic tube outer tube；In the inside of passageway bridge, there are two " Z " font runners, one of them is seawater runner, seawater inlet and the outer shroud Kongxiang of continuous bimetallic tube are logical, seawater outlet is communicated with the inner cavity of screw motor, another is slurry runner, the outer shroud Kongxiang of slurry feed port and continuous bimetallic tube is logical, and slurry pump intake is communicated with the inner cavity of screw pump；At the center of passageway bridge, there are one centre bores, install transmission shaft and bearing so that the power of screw motor can pass to screw pump.The utility model has the following advantages：（1）Simple in structure, appearance and size is small；（2）Offer flows to ALT-CH alternate channel, and fluid motion is made not interfere.
Description
Technical field
The present invention relates to exploitation of gas hydrates technical field more particularly to the non-diagenesis gas waters of sea-bottom shallow
Close the passageway bridge of Logistics exploitation.
Background technology
Gas hydrates are also known as " combustible ice ", by based on methane hydrocarbon gas and water in certain temperature, pressure condition
" cage compound " of lower formation, white crystal structure.Gas hydrates especially ocean hydrate is not yet to open at present
A kind of maximum new energy of reserves of hair, reserves are equivalent to the energy reserves such as coal known to the whole world, oil and natural gas
Twice, but to realize that the effectively controllable business exploitation of hydrate is the problem that the current whole world faces.
So far, the gas hydrates sample acquired by China marine site is non-diagenesis gas hydrates.It is deep
The non-diagenesis gas hydrates of water have the characteristics that large storage capacity, it is weak it is cementing, stability is poor, once the temperature of region, pressure
Condition changes, it is possible to lead to a large amount of decomposition of the non-diagenesis gas hydrates in seabed, gasify and freely discharge, there are latent
Risk.Voltage drop method, heat injection method, chemical inhibitor method in hydrate tradition recovery method and CO2The side such as replacement exploitation method
Method has carried out Short-Term Producing show-how verification to polar region sandstone and marine site sandstone reservoir gas hydrates, and safety needs
Further investigation, and individual well test yield distance business exploitation thresholding also has very big distance.Therefore, for being stored in submarine surface
The exploitation of deep water shallow-layer, weak cementing gas hydrates then needs to consider a kind of completely new exploitation mould within several meters to 200 meters
Formula.Zhou Shouwei etc. samples situation according to the sampling of world marine site hydrate and China marine site hydrate, has been put forward for the first time deep water shallow-layer
Gas hydrates solid state fluidizing production technique reduces the environmental risk that shallow-layer decomposition of hydrate may be brought, and reaching green can
Control the purpose of exploitation.In solid state fluidizing quarrying apparatus, screw motor is mounted on the lower section of the top and screw pump of drill bit.Screw rod
On the one hand the power that motor generates is supplied to drill bit, be on the other hand supplied to screw pump.Between screw motor and screw pump just
It needs, there are one ALT-CH alternate channel is flowed to, the movement of fluid to be made not interfere.
Invention content
For problems of the prior art, it is natural for the non-diagenesis of sea-bottom shallow that the object of the present invention is to provide one kind
The passageway bridge of gas hydrate fluidisation exploitation.
To achieve the above object, technical scheme is as follows：Passageway bridge is mounted on the lower end of screw pump, and bridge-type is logical
Interface is connect with the external screw thread of continuous bimetallic tube inner tube on road, is connect with the internal thread of continuous bimetallic tube outer tube；Passageway bridge is pacified
Mounted in the upper end of screw motor, passageway bridge lower interface is connect with the external screw thread of continuous bimetallic tube inner tube, and outside continuous bimetallic tube
The internal thread of pipe connects；In the inside of passageway bridge, there are two " Z " font runners, one of them is seawater runner, seawater injection
The outer shroud Kongxiang of mouth and continuous bimetallic tube is logical, and seawater outlet is communicated with the inner cavity of screw motor, another is slurry runner, slurry
Body inflow entrance and the outer shroud Kongxiang of continuous bimetallic tube are logical, and slurry pump intake is communicated with the inner cavity of screw pump；In passageway bridge
There are one centre bores for the heart, install transmission shaft and bearing so that the power of screw motor can pass to screw pump.
The present invention has the following advantages：（1）Simple in structure, appearance and size is small；（2）Offer flows to ALT-CH alternate channel, makes fluid
Movement does not interfere.
Description of the drawings
Fig. 1 is screw motor-screw pump structural schematic diagram of the non-diagenesis gas hydrates fluidisation exploitation of sea-bottom shallow；
Fig. 2 is the A-A cross-sectional views of the passageway bridge of the non-diagenesis gas hydrates fluidisation exploitation of sea-bottom shallow；
In figure, the continuous bimetallic tubes of 1-, 2- screw pumps, 3- screw pump stators, 4- screw pump rotors, 5- universal shafts, 6- end caps,
7- rolling bearings, 8- passageway bridges, 9- transmission shafts, 10- slurry feed ports, 11- rolling bearings, 12- end caps, 13- universal shafts,
14- screw motor rotors, 15- screw motor stators, 16- screw motors, the continuous bimetallic tubes of 17-, 18- sealing rings, 19- seawater row
Outlet, 20- seawater inlets, 21- slurry pump intakes.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings, and protection scope of the present invention is not limited to as described below：
As Figure 1-Figure 2, passageway bridge 8 interface and continuous bilayer on the lower end of screw pump 2, passageway bridge 8
The external screw thread of 1 inner tube of pipe connects, and is connect with the internal thread of 1 outer tube of continuous bimetallic tube；Passageway bridge 8 is mounted on screw motor 16
Upper end, 8 lower interface of passageway bridge are connect with the external screw thread of 1 inner tube of continuous bimetallic tube, are connected with the internal thread of 1 outer tube of continuous bimetallic tube
It connects；In the inside of passageway bridge 8 there are two " Z " font runner, one of them is seawater runner, seawater inlet 20 with it is continuous double
The outer shroud Kongxiang of layer pipe 1 is logical, and seawater outlet 19 is communicated with the inner cavity of screw motor 16, another is slurry runner, slurry stream
Entrance 10 and the outer shroud Kongxiang of continuous bimetallic tube 17 are logical, and slurry pump intake 21 is communicated with the inner cavity of screw pump 2；In passageway bridge 8
Center there are one centre bore, transmission shaft 9 is installed in 8 centre bore of passageway bridge, rolling is separately installed in the both sides of transmission shaft 9
Dynamic bearing 7 and 11, end cap 6 and 12, sealing ring 18 can make the rotation in passageway bridge 8 of transmission shaft 9, and play sealing and make
With preventing fluid from mutually altering；The both ends of transmission shaft 9 are connect with universal shaft 5 and 13 respectively so that the power of screw motor 16 passes to
Screw pump 2 provides power for screw pump 2.
Further, high pressure sea water enters passageway bridge in the outer annular space downlink of continuous bimetallic tube 1 from seawater inlet 20
8, then flowed out from seawater outlet 19；Then, high pressure sea water enters 16 inner cavity of screw motor, and driving screw motor rotor 14 exists
It is rotated in screw motor stator 15, generates power；The power part that screw motor 16 generates passes to the drill bit of lower part, another
Part passes to screw pump rotor 4 by transmission shaft 9 and universal shaft 5 and 13 so that screw pump rotor 4 is in screw pump stator 3
Rotation；Under the pump-absorb action of screw pump 2, make the hydrate slurry uplink in 17 annular space of continuous bimetallic tube, from slurry feed port
10 enter passageway bridge 8, are then flowed out from slurry pump intake 21；Then, hydrate slurry enters 2 inner cavity of screw pump, in screw rod
Under the castering action of pump 2, hydrate slurry is delivered up.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form is not to be taken as excluding other embodiments, and can be used for other combinations, modifications, and environments, and can be at this
In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into
Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection domain of appended claims of the present invention
It is interior.
Claims (3)
1. a kind of passageway bridge for sea bed gas hydrate fluidisation exploitation, which is characterized in that passageway bridge is mounted on spiral shell
The upper end of the lower end and screw motor of bar pump, there are two " Z " font runners for the inside of passageway bridge, and the center of passageway bridge has one
A centre bore installs transmission shaft and bearing so that the power of screw motor can pass to screw pump.
2. a kind of passageway bridge for sea bed gas hydrate fluidisation exploitation according to claim 1, feature exist
In passageway bridge is connect with the external screw thread of continuous bimetallic tube inner tube, is connect with the internal thread of continuous bimetallic tube outer tube.
3. a kind of passageway bridge for sea bed gas hydrate fluidisation exploitation according to claim 1,
It is characterized in that, there are two " Z " font runners for the inside of passageway bridge, one of them is seawater runner, seawater inlet
Logical with the outer shroud Kongxiang of continuous bimetallic tube, seawater outlet is communicated with the inner cavity of screw motor, another is slurry runner, slurry
The outer shroud Kongxiang of inflow entrance and continuous bimetallic tube is logical, and slurry pump intake is communicated with the inner cavity of screw pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820342167.XU CN207920587U (en) | 2018-03-13 | 2018-03-13 | A kind of passageway bridge for sea bed gas hydrate fluidisation exploitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820342167.XU CN207920587U (en) | 2018-03-13 | 2018-03-13 | A kind of passageway bridge for sea bed gas hydrate fluidisation exploitation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207920587U true CN207920587U (en) | 2018-09-28 |
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ID=63598748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820342167.XU Expired - Fee Related CN207920587U (en) | 2018-03-13 | 2018-03-13 | A kind of passageway bridge for sea bed gas hydrate fluidisation exploitation |
Country Status (1)
| Country | Link |
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| CN (1) | CN207920587U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252686A (en) * | 2018-03-13 | 2018-07-06 | 西南石油大学 | A kind of passageway bridge for sea bed gas hydrate fluidisation exploitation |
-
2018
- 2018-03-13 CN CN201820342167.XU patent/CN207920587U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252686A (en) * | 2018-03-13 | 2018-07-06 | 西南石油大学 | A kind of passageway bridge for sea bed gas hydrate fluidisation exploitation |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180928 Termination date: 20200313 |
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| CF01 | Termination of patent right due to non-payment of annual fee |