CN213807640U - Negative pressure barrel for deepwater natural gas hydrate exploitation - Google Patents
Negative pressure barrel for deepwater natural gas hydrate exploitation Download PDFInfo
- Publication number
- CN213807640U CN213807640U CN202021782826.5U CN202021782826U CN213807640U CN 213807640 U CN213807640 U CN 213807640U CN 202021782826 U CN202021782826 U CN 202021782826U CN 213807640 U CN213807640 U CN 213807640U
- Authority
- CN
- China
- Prior art keywords
- natural gas
- gas hydrate
- negative pressure
- pipe
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Revetment (AREA)
Abstract
The utility model relates to the field of ocean engineering, in particular to a negative pressure barrel for deepwater natural gas hydrate exploitation, which can be used for the natural gas hydrate exploitation, and comprises a barrel body and a connector; a communicating pipe and a supporting frame are arranged in the barrel body; a high-pressure water nozzle and a gas injection nozzle are arranged in the negative pressure barrel; a water supply pipe, an air supply pipe and a pulp return pipe are arranged in the communicating pipe; the utility model discloses a negative pressure bucket mode, when deep water natural gas hydrate mined, but the connecting tube cable to through inside inner conveying pipe realize with the intercommunication of the production facility on water, can spray high-pressure water and gas injection to the seabed as required, and return the collection with natural gas hydrate gas through returning the thick liquid pipe. When the operation is finished, the barrel body can be lifted and recovered for reuse, the whole operation process is simple and convenient to operate, new equipment is provided for deepwater natural gas hydrate exploitation, and the method is safe and efficient and has wide application prospects.
Description
Technical Field
The utility model belongs to the technical field of the ocean engineering and specifically relates to a negative pressure bucket for exploitation of deep water natural gas hydrate is related to.
Background
The natural gas hydrate is also called as combustible ice, and is an ice-like crystalline substance formed by natural gas and water under high pressure and low temperature conditions and distributed in deep sea sediments or permafrost in land areas. It is also called "combustible ice" because it looks like ice and burns when exposed to fire. The resource density is high, the global distribution is wide, and the resource value is extremely high, so the method becomes a long-term research hotspot in the oil and gas industry. Since the last 60 s, some countries, such as the united states, japan, germany, china, korea, and india, have developed natural gas hydrate exploration and development programs. Heretofore, hydrate sites have been found to exceed 230 in offshore sea and permafrost regions, emerging as a large body of hot research areas for natural gas hydrates.
In 2013, 6 to 9 months, a high-purity natural gas hydrate sample is drilled for the first time in the eastern sea area of the Zhujiang mouth basin in the Guangdong coastal region, and considerable control reserves are obtained through drilling. In 2014, 2, 1, the south China sea natural gas hydrate enrichment rule and the mining basic research are checked and accepted, and the south China sea combustible ice basic research system theory is established. Petroleum in the Guangzhou ocean regional dispatching office union of Guangzhou 5 Yue in 2017 is successfully trial-mined by adopting a blue whale No. 1 depressurization method. The middle sea oil in 5 months in 2017 was successfully pilot-mined by using a marine oil 708 exploration ship in a solid fluidization manner. And 11, 3 months in 2017, the national institute officially approves that the natural gas hydrate is listed as a new mineral species. Therefore, the natural gas hydrate pilot production technology has strong development potential in China.
In order to seize a new energy development market, innovative research on scientific theories, technical methods and supporting equipment in the field of natural gas hydrate exploration and development needs to be strengthened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide a negative pressure bucket for exploitation of deep water natural gas hydrate. The negative pressure barrel can be used for exploiting natural gas hydrates and can be recycled and reused after construction operation is finished.
The technical scheme is as follows:
the negative pressure barrel is used for deepwater natural gas hydrate exploitation and comprises a barrel body and a connector; a communicating pipe and a supporting frame are arranged in the barrel body; the negative pressure barrel is internally provided with a high-pressure water nozzle and a gas injection nozzle.
Furthermore, a water supply pipe, an air supply pipe and a pulp return pipe are arranged in the communicating pipe;
further, the lower end of the pulp return pipe is connected with a pulp return port;
furthermore, the lower end of the water supply pipe is connected with a transverse water pipe;
furthermore, the other end of the transverse water pipe is connected with a high-pressure water nozzle;
further, the lower end of the gas supply pipe is connected with a gas injection nozzle;
furthermore, the other end of the connector is connected with a pipe cable and a water production facility.
The utility model has the advantages that:
the utility model discloses a negative pressure bucket mode, when deep water natural gas hydrate mined, but the connecting tube cable to through inside inner conveying pipe realize with the intercommunication of the production facility on water, can spray high-pressure water and gas injection to the seabed as required, and return the collection with natural gas hydrate gas through returning the thick liquid pipe. When the operation is finished, the barrel body can be lifted and recovered for reuse, the whole operation process is simple and convenient to operate, new equipment is provided for deepwater natural gas hydrate exploitation, and the method is safe and efficient and has wide application prospects.
Drawings
Fig. 1 is a schematic view of the negative pressure barrel for deepwater natural gas hydrate exploitation according to the present invention;
fig. 2 is a view from a-a direction of the negative pressure barrel for deepwater natural gas hydrate exploitation according to the present invention.
In the figure: 1-barrel body, 2-communicating pipe, 3-support frame, 4-horizontal water pipe, 5-high pressure water nozzle, 6-slurry return port, 7-gas injection nozzle, 8-internal conveying pipe, 9-connector, 10-water supply pipe, 11-gas supply pipe and 12-slurry return pipe.
Detailed Description
The present invention will be further specifically described with reference to the following specific examples.
As shown in fig. 1-2, the negative pressure barrel for deepwater natural gas hydrate exploitation comprises a barrel body 1 and a connector 9; a communicating pipe 2 and a supporting frame 3 are arranged in the barrel body 1; the negative pressure barrel is internally provided with a high pressure water nozzle 5 and an air injection nozzle 7.
A water supply pipe 10, an air supply pipe 11 and a pulp return pipe 12 are arranged in the communicating pipe 2;
the lower end of the pulp return pipe 12 is connected with the pulp return port 6;
the lower end of the water supply pipe 11 is connected with the horizontal water pipe 4;
the other end of the transverse water pipe 4 is connected with a high-pressure water nozzle 5;
the lower end of the gas supply pipe 11 is connected with a gas injection nozzle 7;
the other end of the connector 9 is connected with a pipe cable and a water production facility.
The embodiments disclosed herein are to be considered in all respects as illustrative and not restrictive. The above-described embodiments may be omitted, replaced, or modified in various ways without departing from the scope of the appended claims and the gist thereof.
Claims (10)
1. The negative pressure barrel for deepwater natural gas hydrate exploitation comprises a barrel body (1) and a connector (9); the method is characterized in that: the barrel body (1) is internally provided with a communicating pipe (2) from top to bottom and a supporting frame (3) which is supported between the communicating pipe (2) and the inner wall of the barrel body.
2. Negative pressure bucket for deepwater natural gas hydrate exploration according to claim 1, characterized in that the bottom of the bucket body is also provided with high pressure water nozzles (5).
3. The negative pressure bucket for deepwater natural gas hydrate production according to claim 2, wherein: a water supply pipe (10) is sleeved in the communicating pipe (2), and the high-pressure water nozzle is communicated with the connector (9) through the water supply pipe.
4. The negative pressure bucket for deepwater natural gas hydrate exploitation according to claim 3, wherein a gas injection nozzle (7) is further arranged at the bottom of the bucket body.
5. The negative pressure bucket for deepwater natural gas hydrate production according to claim 4, wherein: the lower end of the water supply pipe (10) is connected with the transverse water pipe (4).
6. The negative pressure bucket for deepwater natural gas hydrate production according to claim 5, wherein: the other end of the transverse water pipe (4) is connected with a high-pressure water nozzle (5).
7. The negative pressure bucket for deepwater natural gas hydrate production according to claim 6, wherein: communicating pipe (2) endotheca be equipped with air supply pipe (11), gas injection nozzle (7) are through air supply pipe intercommunication connector (9).
8. The negative pressure barrel for deepwater natural gas hydrate exploitation according to claim 7, wherein a slurry return pipe (12) is further sleeved in the communicating pipe (2).
9. The negative pressure bucket for deepwater natural gas hydrate production according to claim 8, wherein: the lower end of the pulp return pipe (12) is connected with the pulp return port (6).
10. The negative pressure bucket for deepwater natural gas hydrate production of claim 9, wherein: the lower end of the gas supply pipe (11) is connected with a gas injection nozzle (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021782826.5U CN213807640U (en) | 2020-08-24 | 2020-08-24 | Negative pressure barrel for deepwater natural gas hydrate exploitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021782826.5U CN213807640U (en) | 2020-08-24 | 2020-08-24 | Negative pressure barrel for deepwater natural gas hydrate exploitation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213807640U true CN213807640U (en) | 2021-07-27 |
Family
ID=76951772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021782826.5U Active CN213807640U (en) | 2020-08-24 | 2020-08-24 | Negative pressure barrel for deepwater natural gas hydrate exploitation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213807640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404469A (en) * | 2021-08-18 | 2021-09-17 | 中国石油大学胜利学院 | Extended submarine combustible ice mining device and method |
-
2020
- 2020-08-24 CN CN202021782826.5U patent/CN213807640U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404469A (en) * | 2021-08-18 | 2021-09-17 | 中国石油大学胜利学院 | Extended submarine combustible ice mining device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103628880B (en) | The green mining system of deep seafloor shallow-layer non-diagenesis formation gas hydrate | |
| US10655436B2 (en) | Device and method for solid-state fluidization mining of seabed shallow layer non-diagenetic natural gas hydrates | |
| CN105041271B (en) | A kind of buck exploiting ocean natural gas hydrates method and sub-sea production systems | |
| CN105822266B (en) | Sea bed gas hydrate slurry decomposition and separation is with removing silt modularization mining system | |
| CN108412466B (en) | Seabed natural gas hydrate exploitation device and exploitation method | |
| CN108278100B (en) | Gas recovery method and system for natural gas hydrate exploitation | |
| CN102587959B (en) | Method for draining coal seam gas | |
| CN107489412B (en) | Submarine shallow natural gas hydrate underground in-situ real-time separation backfill system | |
| CN108868706B (en) | Method for exploiting natural gas hydrate by directional drilling supercritical carbon dioxide fracturing and displacement | |
| CN103628844A (en) | Method for green mining of natural gas hydrate of shallow non-diagenesis stratum of deep seabed | |
| CN110029968B (en) | Device for drilling hydrate micro well and quickly completing well and working method | |
| CN108086945B (en) | Layer-penetrating drilling separation type whole-course gas extraction hole sealing device and hole sealing method thereof | |
| CN213807640U (en) | Negative pressure barrel for deepwater natural gas hydrate exploitation | |
| CN108049846A (en) | A kind of method of solid displacement pressurize exploitation sea bed gas hydrate | |
| CN206957683U (en) | A kind of coal seam pressure relief and permeability improvement system | |
| CN114876437B (en) | Coal seam in-situ hydrogen production method by utilizing supercritical water | |
| CN112081559A (en) | Device and method for extracting natural gas hydrate by depressurization and double-pipe injection of modified fluid | |
| CN113236192A (en) | Marine hydrate underwater mining system and method | |
| CN204713384U (en) | Floating type well drilling produces storage Unloading Device | |
| CN114086921A (en) | Negative pressure barrel for deepwater natural gas hydrate exploitation | |
| CN112127852A (en) | Efficient argillaceous powder sand mold natural gas hydrate exploitation system and exploitation method thereof | |
| CN111608618A (en) | Low-carbon ocean hydrate exploitation and power generation utilization system | |
| CN115726742A (en) | Natural gas hydrate-shallow gas-deep gas multi-source multi-method combined mining system and method | |
| CN205203312U (en) | Locking mechanism is docked to control module's gear drive formula under water | |
| CN114016974A (en) | Installation and construction method for exploiting seabed surface exposed combustible ice mineral methane generation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |