CN208252097U - A kind of shaft bottom spiral flow-guiding device for exploitation of gas hydrates - Google Patents
A kind of shaft bottom spiral flow-guiding device for exploitation of gas hydrates Download PDFInfo
- Publication number
- CN208252097U CN208252097U CN201820768797.3U CN201820768797U CN208252097U CN 208252097 U CN208252097 U CN 208252097U CN 201820768797 U CN201820768797 U CN 201820768797U CN 208252097 U CN208252097 U CN 208252097U
- Authority
- CN
- China
- Prior art keywords
- oil
- gas hydrates
- connector
- exploitation
- wall
- 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.)
- Expired - Fee Related
Links
Abstract
A kind of shaft bottom spiral flow-guiding device for exploitation of gas hydrates, is related to exploitation of gas hydrates field.The utility model includes connector of oil pipes of oil, expanding guide shell, connect internal screw thread, temperature sensor, power transmission cable, spiral stream guidance band, ribbon heater, drainage hole, connector of oil pipes of oil is located at expanding guide shell top, connection internal screw thread is located at connector of oil pipes of oil inner wall, temperature sensor, power transmission cable is located at connector of oil pipes of oil outer wall, spiral stream guidance band, ribbon heater, drainage hole is located at expanding water conservancy diversion drum outer wall, spiral stream guidance band bottom is fixed in ribbon heater, the utility model can pass through temperature sensor real-time monitoring gas hydrates producing well bottom hole temperature (BHT), shaft bottom can be heated when temperature is too low, it avoids causing to generate gas hydrates in pit shaft since bottom hole temperature (BHT) is too low, and medium in casing can be made to convey in eddy flow, increase the production efficiency of gas hydrates.
Description
Technical field
The utility model relates to exploitation of gas hydrates fields, and in particular to a kind of shaft bottom spiral flow-guiding device.
Background technique
Gas hydrates (natural gas hydrate, abbreviation NGH), are natural gases under certain low temperature, high pressure
The non-stoichiometry cage compound formed with water, also referred to as " combustible ice ".1m3Gas hydrates can contain 164m3Methane gas
And 0.8m3Water." combustible ice " is the product of growing nonparasitically upon another plant of natural gas, and application range is roughly the same with natural gas, is a kind of typical
Oil substitutes." combustible ice " easily burns, under equal conditions, energy ratio coal that " combustible ice " burning generates, petroleum, natural
Gas will be higher by decades of times, be known as " belonging to the super energy that end is come ".
The flammable ice reserves very abundant in China, according to investigation, the gas hydrates in China are mainly distributed on south
Sea area, Area of The East China Sea, Qinghai-Tibet tundra and northeast tundra.Artificially break what gas hydrates were stabilized
Phase balance condition promotes its decomposition, is the main method of current exploitation gas hydrates.
Voltage drop method: the movement by reducing the phase equilibrium line that pressure causes gas hydrates stable, to reach
Promote the purpose of gas hydrate dissociation.Free gas under exploitation hydrate layer is that the one kind for reducing reservoir pressure has efficacious prescriptions
Method, can achieve the purpose of control reservoir pressure additionally by the extraction rate for adjusting natural gas, and then reach control hydrate
The effect of decomposition.The feature of voltage drop method maximum is not need expensive continuous agitation, thus it is likely to become and opens on a large scale from now on
Adopt one of the effective ways of gas hydrates.
However during voltage drop method exploitation of gas hydrate, since bottom hole temperature (BHT) is lower, pressure is higher, in recovery process
Water and natural gas after middle decomposition easily form gas hydrates in the wellbore and cause serious safety to block pit shaft
Accident.
Summary of the invention
Purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of shaft bottom spiral shells for exploitation of gas hydrates
Guiding device is revolved, the utility model can be by temperature sensor real-time monitoring gas hydrates producing well bottom hole temperature (BHT), in temperature
Shaft bottom can be heated when spending low, avoid causing to generate gas hydrates in pit shaft since bottom hole temperature (BHT) is too low, and
Medium in casing can be made to convey in eddy flow, increase the production efficiency of gas hydrates.
The utility model embodiment provides a kind of shaft bottom spiral flow-guiding device for exploitation of gas hydrates, including oil
Pipe connector, expanding guide shell, connection internal screw thread, temperature sensor, power transmission cable, spiral stream guidance band, ribbon heater, drainage hole,
Connector of oil pipes of oil is located at expanding guide shell top, and connection internal screw thread is located at connector of oil pipes of oil inner wall, temperature sensor, power transmission cable
Positioned at connector of oil pipes of oil outer wall, spiral stream guidance band, ribbon heater, drainage hole are located at expanding water conservancy diversion drum outer wall, and spiral shell is fixed in ribbon heater
Revolve diversion belt bottom.
The utility model spiral flow-guiding device in use, the spiral stream guidance band can make pipeline internal medium in eddy flow convey,
Eddy flow, which conveys relatively common advection conveying, stronger advantage, and in exploitation of gas hydrates operation, operational method is
Oil pipe draws water, casing gas production, and after utility model device, medium generates tangential speed under cyclonic action in oil jacket annulus
Degree, becomes screw from the axial movement of script, under spiral stream mode, due to gravity factor, natural gas can be along oil jacket
Annular space rises, and water falls in oil jacket annulus, can flow into expanding water conservancy diversion along drainage hole when the water of whereabouts flows through expanding guide shell
Cylinder is internal, is evacuated to ground via oil pipe, greatly reduces the content of water in oil jacket annulus, reduce and formed in oil jacket annulus
The probability of gas hydrates.
The utility model spiral flow-guiding device is in use, connector of oil pipes of oil is threadedly connect with oil pipe.
A kind of shaft bottom spiral flow-guiding device beneficial effect for exploitation of gas hydrates of the utility model embodiment
Be: 1) the utility model can be too low in temperature by temperature sensor real-time monitoring gas hydrates producing well bottom hole temperature (BHT)
When shaft bottom can be heated, avoid causing to generate gas hydrates in pit shaft since bottom hole temperature (BHT) is too low, increase day
The production efficiency of right gas hydrate；2) spiral stream guidance band described in the utility model can be such that pipeline internal medium conveys in eddy flow, eddy flow
Conveying relatively common advection conveying has stronger advantage, and medium generates tangential velocity under cyclonic action in oil jacket annulus,
Screw is become from the axial movement of script, the probability for forming gas hydrates in oil jacket annulus can be reduced；3) this reality
It is installed in oil pipe bottom when with novel use and connects power transmission cable, direct tripping in producing well, maintenance cost is extremely low.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, for those skilled in the art, can also be obtained according to these attached drawings without creative efforts
Other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model.
Drawing reference numeral: 1, connector of oil pipes of oil 2, expanding guide shell 3, connection internal screw thread 4, temperature sensor 5, power transmission cable 6,
Spiral stream guidance band 7, ribbon heater 8, drainage hole.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, including: connector of oil pipes of oil 1, expanding guide shell 2, connection internal screw thread 3, temperature biography for the utility model
Sensor 4, power transmission cable 5, spiral stream guidance band 6, ribbon heater 7, drainage hole 8, connector of oil pipes of oil 1 are located at expanding 2 top of guide shell, even
It connects internal screw thread 3 and is located at 1 inner wall of connector of oil pipes of oil, temperature sensor 4, power transmission cable 5 are located at 1 outer wall of connector of oil pipes of oil, and spiral is led
Stream band 6, ribbon heater 7, drainage hole 8 are located at expanding 2 outer wall of guide shell, and spiral stream guidance band bottom 6 is fixed in ribbon heater 7.
When the utility model is used, utility model device is mounted on oil pipe bottom and connects power transmission cable, under direct
Enter producing well, in exploitation of gas hydrates operation, operational method is drawn water for oil pipe, casing gas production.
Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects
Step is described in detail, it should be understood that being not used to limit this foregoing is merely specific embodiment of the utility model
The protection scope of utility model, within the spirit and principle of the utility model, any modification for being made, changes equivalent replacement
Into etc., it should be included within the scope of protection of this utility model.
Claims (1)
1. a kind of shaft bottom spiral flow-guiding device for exploitation of gas hydrates, including connector of oil pipes of oil, expanding guide shell, company
Internal screw thread, temperature sensor, power transmission cable, spiral stream guidance band, ribbon heater, drainage hole are connect, connector of oil pipes of oil is located at expanding water conservancy diversion
Cylinder top, connection internal screw thread are located at connector of oil pipes of oil inner wall, and temperature sensor, power transmission cable are located at connector of oil pipes of oil outer wall, spiral shell
Rotation diversion belt, ribbon heater, drainage hole are located at expanding water conservancy diversion drum outer wall, and spiral stream guidance band bottom is fixed in ribbon heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820768797.3U CN208252097U (en) | 2018-05-23 | 2018-05-23 | A kind of shaft bottom spiral flow-guiding device for exploitation of gas hydrates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820768797.3U CN208252097U (en) | 2018-05-23 | 2018-05-23 | A kind of shaft bottom spiral flow-guiding device for exploitation of gas hydrates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208252097U true CN208252097U (en) | 2018-12-18 |
Family
ID=66481379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820768797.3U Expired - Fee Related CN208252097U (en) | 2018-05-23 | 2018-05-23 | A kind of shaft bottom spiral flow-guiding device for exploitation of gas hydrates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208252097U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119798A (en) * | 2019-11-15 | 2020-05-08 | 东北石油大学 | Natural gas hydrate slurry mining device |
| CN111577207A (en) * | 2020-05-14 | 2020-08-25 | 大庆油田有限责任公司 | Horizontal gas well is with interior spiral drainage instrument of oil pipe |
-
2018
- 2018-05-23 CN CN201820768797.3U patent/CN208252097U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119798A (en) * | 2019-11-15 | 2020-05-08 | 东北石油大学 | Natural gas hydrate slurry mining device |
| CN111577207A (en) * | 2020-05-14 | 2020-08-25 | 大庆油田有限责任公司 | Horizontal gas well is with interior spiral drainage instrument of oil pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103410488B (en) | Gas hydrates water pumping gas production quarrying apparatus and exploitation method thereof | |
| CN101666286B (en) | System for integrally exploiting marine energy resource | |
| CN208252097U (en) | A kind of shaft bottom spiral flow-guiding device for exploitation of gas hydrates | |
| CN101864941B (en) | Ultra-deep coal underground gasification technology | |
| CN106640008A (en) | Supercritical multisource multielement thermal fluid injection-production system and injection-production method | |
| CN105064959A (en) | Method for green extraction of seabed unstratlfied rock natural gas hydrate | |
| CN107461180A (en) | A kind of underground continuous oil pipe implement | |
| CN103821470B (en) | Oil well heat injection nitrogen technology for washing well method | |
| CN102979493A (en) | Gas injection system for combustion of oil in-situ under super-critical pressure and gas injection method thereof | |
| CN104895545B (en) | A kind of underground fuel gasification process | |
| CN107676061A (en) | A kind of method of parallel water horizontal well exploitation offshore natural gas hydrate | |
| CN102071915B (en) | Annular space continuous nitrogen injection auxiliary heat insulation method for offshore thermal recovery | |
| CN107676060A (en) | A kind of method of the U-shaped well microwave heating exploitation of gas hydrates | |
| CN107575193A (en) | A kind of method of offshore natural gas hydrate row formula horizontal wells | |
| CN109695441A (en) | A kind of method of parallel water horizontal well microwave heating exploitation of gas hydrate | |
| CN202546266U (en) | Oil-gas mixture vortex delivery system for oil well sleeve gas recovery and crude oil delivery | |
| CN212867523U (en) | Coal underground gasification and geothermal combined system | |
| CN202746940U (en) | Prevention and control tool of natural gas hydrate | |
| CN107558977A (en) | A kind of method of row's formula horizontal well microwave heating exploitation of gas hydrate | |
| CN201218093Y (en) | Thick oil borehole viscosity-reduction oil-extraction heating apparatus | |
| CN108061246B (en) | A kind of detection of sea-bottom oil-gas transport pipeline Hydrate Plugging and plug-removing device | |
| CN207920597U (en) | A kind of hydraulic cyclone liquid sand separator | |
| CN207568572U (en) | A kind of simulated injection CO2With calcium lime powder exploitation of gas hydrate experimental provision | |
| CN107542438A (en) | A kind of method of parallel water horizontal well exploitation of gas hydrate | |
| CN106602778A (en) | High-power oil-filled deep-diving underwater motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200902 Address after: No.47, area a, floor 1, No.5, building 10, Taihai Garden community, Nangang District, Harbin City, Heilongjiang Province Patentee after: Harbin Tongyuan Jiayang Energy Technology Co., Ltd Address before: Room No. 3 301, Emerging Industry Incubator (Park) No. 36 Torch New Street, Daqing High-tech Zone, Heilongjiang Province Patentee before: DAQING DONGYOU RUIJIA PETROLEUM TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 Termination date: 20210523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |