CN207315343U - A kind of sea-bottom shallow gas hydrates underground separates backfill system in real time on the spot - Google Patents
A kind of sea-bottom shallow gas hydrates underground separates backfill system in real time on the spot Download PDFInfo
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- CN207315343U CN207315343U CN201721329723.1U CN201721329723U CN207315343U CN 207315343 U CN207315343 U CN 207315343U CN 201721329723 U CN201721329723 U CN 201721329723U CN 207315343 U CN207315343 U CN 207315343U
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- backfill
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Abstract
The utility model discloses a kind of sea-bottom shallow gas hydrates underground and separates backfill system in real time on the spot, system shell is backfilled including separation, it is arranged on the first pump in separation backfill system shell, it is arranged on the piece-rate system of the first pump discharge, it is arranged on piece-rate system inner separator pipe nipple, it is arranged on separator pipe nipple inward turning stream separator, it is arranged on second pump on isolated subsystem top, it is arranged on the first check valve of the second pump discharge, it is arranged on the backfill system of piece-rate system bottom, the 3rd pump being arranged in backfill system, it is arranged on the sand sediment pipe of the 3rd pump discharge, the backfill pipe being arranged under sand sediment pipe, the second check valve being arranged in the middle part of backfill pipe, mixture slurry is pumped into piece-rate system by first, after piece-rate system processing, hydrate slurry is pumped into well head from piece-rate system upper end, mortar is from piece-rate system lower end to backfill system.Through the above scheme, it can reach that separative efficiency is high, treating capacity is big, separation backfill in real time, have great practical value and promotional value.
Description
Technical field
Exploitation of gas hydrates technical field is the utility model is related to, is related to a kind of sea-bottom shallow gas hydrates well
Under on the spot in real time separation backfill system.
Background technology
Gas hydrates are also known as combustible ice, are in certain temperature, pressure bar by the hydrocarbon gas based on methane and water
The class ice solid chemical compound formed under part.Global gas hydrates reserves are huge, and are cleaning, the good energy, not
Occupy an important position in the energy strategy come.
The main existence form of hydrate has sandrock-type, sandstone crack type, particulate crack type and decentralized, and wherein particulate is split
Gap type and decentralized hydrate account for the overwhelming majority, but the hydrate buried depth of the type is shallow, and cementing properties is poor, easily draws in recovery process
Send out geology and environmental hazard.Recovery method traditional at present mainly has thermostimulation method, depressurizes method, chemical-agent technique, carbon dioxide
Displacement method, these methods, which are only applicable to gas hydrates, has good cap rock, has certain limitation.
" solid state fluidizing " recovery method is a kind of brand-new exploitation thinking for the non-diagenesis gas hydrates in seabed, its
Existing core concept is in the case where not changing bottom-water temperature and pressure, directly utilizes machinery or digging gas hydrates ore deposit
Body, solid gas hydrate particle, sand and sea water mixing after being crushed by closed conduit are pumped to sea, then are divided
From the processing such as, decomposition gasification.Substantial amounts of sand is also pumped into sea in adopting said method recovery process, so needs to expend big
The manpower and materials of amount, and cause stratum empty without backfill thing after all mixture slurries are taken away, easily trigger seabed to collapse
Geological disaster, it is contaminated to finally result in environments such as subsea.In the prior art simply to gas hydrates mixture slurry shaft bottom into
The very coarse separation of row, almost falls flat.
To be separated back in real time on the spot in view of the above problems, the utility model proposes a kind of sea-bottom shallow gas hydrates underground
Fill out system.
The content of the invention
The utility model exploits the deficiency of sea-bottom shallow Natural Gas Hydrate Technology for existing solid state fluidizing, in order to improve
Production efficiency, reduce cost and realize that safe green exploitation provides a kind of sea-bottom shallow gas hydrates underground on the spot in fact
When separate backfill system.
A kind of sea-bottom shallow gas hydrates underground on the spot in real time separate backfill system, including for other hydrates
The separation backfill system shell of winning apparatus connection, is arranged on the first pump in separation backfill system shell, is arranged on first and pumps out
Isolated subsystem at mouthful, the separator pipe nipple being arranged on inside isolated subsystem, the eddy flow being arranged on inside separator pipe nipple
Separator, is arranged on second pump on isolated subsystem top, the first check valve being arranged at the second pump discharge, is arranged on separation
The backfill subsystem of subsystem bottom, is arranged on the 3rd pump of backfill subsystem internal, the sand setting being arranged at the 3rd pump discharge
Pipe, is arranged on the backfill pipe of sand sediment pipe lower end, the second check valve being arranged in the middle part of backfill pipe, the effect of check valve be prevent be
Undesirable fluid beyond system enters reflux and returns system.The gas hydrates mixture slurry obtained after broken is pumped by the first pump
Isolated subsystem is sent to, after isolated subsystem separating treatment, hydrate slurry is brought out from isolated subsystem, then by first
Well head is pumped into, mortar is brought out under isolated subsystem, subsequently into backfill subsystem, is backfilled under the action of the 3rd pump
Exploitation is in situ, has thus achieveed the purpose that real-time separation backfills in real time.
In further technical solution, the separator pipe nipple in the isolated subsystem is connected in parallel, on separator pipe nipple
Bring out mouth to connect by hydrate slurry shared pipeline passage, the outlet of separator pipe nipple lower end is connected by mortar shared pipeline passage
Connect.
In further technical solution, the cyclone separator in the separator pipe nipple is connected in parallel, cyclone separator upper end
Outlet is connected with separator pipe nipple by pushing up outlet line, and the outlet of cyclone separator lower end passes through bottom outlet pipe with separator pipe nipple
Line connects.
In further technical solution, the sand sediment pipe is provided with sand stirring device.
Compared with prior art, the utility model has the advantages that：
（1）The utility model proposes sea-bottom shallow gas hydrates underground separate backfill system in real time on the spot, can be real
When hydrate mixture slurry is separated, the sand isolated is backfilled, do not break actively hydrate reservoir pressure and
Temperature equilibrium, that is, improve the production efficiency of hydrate exploitation, protect the underlying security of reservoir, and reduces hydrate
The energy consumption of exploitation reaches safe green exploitation.
（2）The utility model proposes piece-rate system separative efficiency is high, treating capacity is big, established for later stage business exploitation solid
Basis.
（3）The utility model proposes system it is flexible for installation, compact structure, is adapted to seabed adverse circumstances very much.
Brief description of the drawings
Fig. 1 is the system structure signal of separation backfill in real time on the spot of the utility model sea-bottom shallow gas hydrates underground
Figure.
Fig. 2 separates pipe nipple structure diagram for the utility model.
Fig. 3 separates pipe nipple structure top view for the utility model.
In above-mentioned attached drawing, the corresponding component names of reference numeral are as follows：
1- separation backfill system shells, 2- first are pumped, 3- isolated subsystems, 4- separator pipe nipples, 5- cyclone separators, 6-
Second pump, the first check valves of 7-, 8- backfill subsystems, 9- the 3rd are pumped, 10- sand sediment pipes, 11- backfill pipes, the second check valves of 12-,
13- hydrate slurry shared pipeline passages, 14- mortar shared pipeline passages, 15- tops outlet line, the connection of 16- bottom outlets pipeline,
17- sand stirring devices.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, and the embodiment of the utility model includes
But it is not limited to the following example.
Embodiment
Separation backfill system structure such as Fig. 1 extremely schemes in real time on the spot for the sea-bottom shallow gas hydrates underground of the utility model
Shown in 3, it is that the separation for being connected with other hydrate winning apparatus backfills system shell 1, is arranged on outside separation backfill system
The first pump 2 in shell 1, is arranged on the isolated subsystem 3 in 2 exit of the first pump, the separator being arranged on inside isolated subsystem 3
Pipe nipple 4, the cyclone separator 5 being arranged on inside separator pipe nipple 4, is arranged on second pump 6 on 3 top of isolated subsystem, sets
The first check valve 7 in the second 6 exits of pump, is arranged on the backfill subsystem 8 of 3 bottom of isolated subsystem, is arranged on backfill
The 3rd pump 9 inside system 8, is arranged on the sand sediment pipe 10 in the 3rd 9 exits of pump, is arranged on the backfill pipe of 10 lower end of sand sediment pipe
11, it is arranged on second check valve 12 at 11 middle part of backfill pipe.After the system is connected to breaker, the day that is obtained after broken
Right gas hydrate mixture slurry is pumped into isolated subsystem 3 by the first pump 2, after 3 separating treatment of isolated subsystem, hydration
Thing slurry is brought out from isolated subsystem 3, is then pumped into well head by the first pump 2, mortar is brought out under isolated subsystem 3, then
Into backfill subsystem 8, exploitation original position is backfilled under the action of the 3rd pump 9, has thus reached real-time separation backfill in real time
Purpose.It is that undesirable fluid beyond anti-locking system enters reflux and returns system wherein by the effect of check valve, allows system
Normal operation is guaranteed.
As shown in Figure 1, the separator pipe nipple 4 in isolated subsystem 3 is connected in parallel, 4 upper end outlet of separator pipe nipple passes through
Hydrate slurry shared pipeline passage 13 connects, and the outlet of 4 lower end of separator pipe nipple is connected by mortar shared pipeline passage 14.
As shown in Figure 1 to Figure 3, the cyclone separator in separator pipe nipple 4 is connected in parallel, 5 upper end outlet of cyclone separator
It is connected with separator pipe nipple 4 by pushing up outlet line 15, the outlet of 5 lower end of cyclone separator passes through bottom outlet with separator pipe nipple 4
Pipeline 16 connects.
As shown in Figure 1, sand sediment pipe 10 is provided with sand stirring device 17, sand blender ceaselessly stirs, and it is abundant to reach water sand
Mixing, is conducive to exclude in time, is not easy to plug tubing string.
Above-described embodiment is only the preferred embodiment of the utility model, is not intended to limit the scope of the present invention,
In every case using the design principle of the utility model, and the change for carrying out non-creative work on this basis and making, should all
Belong within the scope of protection of the utility model.
Claims (4)
1. a kind of sea-bottom shallow gas hydrates underground separates backfill system in real time on the spot, it is characterised in that：Including for
The separation backfill system shell of other hydrate winning apparatus connection（1）, it is arranged on separation backfill system shell（1）Interior first
Pump（2）, it is arranged on the first pump（2）The isolated subsystem in exit（3）, it is arranged on isolated subsystem（3）Internal separator is short
Section（4）, it is arranged on separator pipe nipple（4）Internal cyclone separator（5）, it is arranged on isolated subsystem（3）Second pump on top
（6）, it is arranged on the second pump（6）First check valve in exit（7）, it is arranged on isolated subsystem（3）The backfill subsystem of bottom
（8）, it is arranged on backfill subsystem（8）The 3rd internal pump（9）, it is arranged on the 3rd pump（9）The sand sediment pipe in exit（10）, set
In sand sediment pipe（10）The backfill pipe of lower end（11）, it is arranged on backfill pipe（11）Second check valve at middle part（12）.
2. a kind of sea-bottom shallow gas hydrates underground separates backfill system in real time on the spot according to claim 1, it is special
Sign is：The isolated subsystem（3）In separator pipe nipple（4）It is connected in parallel, separator pipe nipple（4）Upper end outlet passes through
Hydrate slurry shared pipeline passage（13）Connection, separator pipe nipple（4）Lower end outlet passes through mortar shared pipeline passage（14）Even
Connect.
3. a kind of sea-bottom shallow gas hydrates underground separates backfill system in real time on the spot according to claim 1, it is special
Sign is：The separator pipe nipple（4）Interior cyclone separator（5）It is connected in parallel, cyclone separator（5）Upper end outlet is with separating
Device pipe nipple（4）By pushing up outlet line（15）Connection, cyclone separator（5）Lower end exports and separator pipe nipple（4）Gone out the bottom of by
Mouth pipeline（16）Connection.
4. a kind of sea-bottom shallow gas hydrates underground separates backfill system in real time on the spot according to claim 1, it is special
Sign is：The sand sediment pipe（10）It is provided with sand stirring device（17）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721329723.1U CN207315343U (en) | 2017-10-17 | 2017-10-17 | A kind of sea-bottom shallow gas hydrates underground separates backfill system in real time on the spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721329723.1U CN207315343U (en) | 2017-10-17 | 2017-10-17 | A kind of sea-bottom shallow gas hydrates underground separates backfill system in real time on the spot |
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| Publication Number | Publication Date |
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| CN207315343U true CN207315343U (en) | 2018-05-04 |
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ID=62380949
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| CN201721329723.1U Active CN207315343U (en) | 2017-10-17 | 2017-10-17 | A kind of sea-bottom shallow gas hydrates underground separates backfill system in real time on the spot |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489412A (en) * | 2017-10-17 | 2017-12-19 | 西南石油大学 | A kind of sea-bottom shallow gas hydrates underground separates backfill system in real time on the spot |
| CN109184658A (en) * | 2018-11-25 | 2019-01-11 | 西南石油大学 | A kind of biasing symmetric parallel formula sea-bottom shallow gas hydrates in-situ separating device |
| CN110029982A (en) * | 2019-05-08 | 2019-07-19 | 华东理工大学 | Cementing cyclone separator is broken in rotation |
| CN110029983A (en) * | 2019-05-21 | 2019-07-19 | 华东理工大学 | Multiple-stage separator |
| CN114293968A (en) * | 2022-01-10 | 2022-04-08 | 西南石油大学 | Novel air-flotation rotational flow type natural gas hydrate desanding method and device |
-
2017
- 2017-10-17 CN CN201721329723.1U patent/CN207315343U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489412A (en) * | 2017-10-17 | 2017-12-19 | 西南石油大学 | A kind of sea-bottom shallow gas hydrates underground separates backfill system in real time on the spot |
| CN109184658A (en) * | 2018-11-25 | 2019-01-11 | 西南石油大学 | A kind of biasing symmetric parallel formula sea-bottom shallow gas hydrates in-situ separating device |
| CN109184658B (en) * | 2018-11-25 | 2021-01-22 | 西南石油大学 | Bias symmetrical parallel type seabed shallow natural gas hydrate in-situ separation device |
| CN110029982A (en) * | 2019-05-08 | 2019-07-19 | 华东理工大学 | Cementing cyclone separator is broken in rotation |
| CN110029983A (en) * | 2019-05-21 | 2019-07-19 | 华东理工大学 | Multiple-stage separator |
| CN114293968A (en) * | 2022-01-10 | 2022-04-08 | 西南石油大学 | Novel air-flotation rotational flow type natural gas hydrate desanding method and device |
| CN114293968B (en) * | 2022-01-10 | 2023-07-14 | 西南石油大学 | Novel air-floatation rotational flow type natural gas hydrate desanding method and device |
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