CN212299512U - Anti-reflux wellhead device for middle-deep geothermal well - Google Patents
Anti-reflux wellhead device for middle-deep geothermal well Download PDFInfo
- Publication number
- CN212299512U CN212299512U CN202022213360.3U CN202022213360U CN212299512U CN 212299512 U CN212299512 U CN 212299512U CN 202022213360 U CN202022213360 U CN 202022213360U CN 212299512 U CN212299512 U CN 212299512U
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- Prior art keywords
- current
- cavity
- well
- reflux
- check valve
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- 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.)
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- 230000000151 anti-reflux effect Effects 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 230000002411 adverse Effects 0.000 claims 1
- 239000012535 impurity Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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Abstract
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Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202022213360.3U CN212299512U (en) | 2020-10-07 | 2020-10-07 | Anti-reflux wellhead device for middle-deep geothermal well |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202022213360.3U CN212299512U (en) | 2020-10-07 | 2020-10-07 | Anti-reflux wellhead device for middle-deep geothermal well |
Publications (1)
Publication Number | Publication Date |
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CN212299512U true CN212299512U (en) | 2021-01-05 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202022213360.3U Active CN212299512U (en) | 2020-10-07 | 2020-10-07 | Anti-reflux wellhead device for middle-deep geothermal well |
Country Status (1)
Country | Link |
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CN (1) | CN212299512U (en) |
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2020
- 2020-10-07 CN CN202022213360.3U patent/CN212299512U/en active Active
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Anti counter flow wellhead device for middle and deep geothermal wells Effective date of registration: 20210629 Granted publication date: 20210105 Pledgee: Dongying laishang village bank Limited by Share Ltd. Development Zone sub branch Pledgor: DONGYING MINGHUI NEW ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2021980005522 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220627 Granted publication date: 20210105 Pledgee: Dongying laishang village bank Limited by Share Ltd. Development Zone sub branch Pledgor: DONGYING MINGHUI NEW ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2021980005522 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Counterflow prevention wellhead device for medium and deep geothermal wells Effective date of registration: 20230317 Granted publication date: 20210105 Pledgee: Dongying rural commercial bank Limited by Share Ltd. Dongcheng sub branch Pledgor: DONGYING MINGHUI NEW ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2023980035236 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210105 Pledgee: Dongying rural commercial bank Limited by Share Ltd. Dongcheng sub branch Pledgor: DONGYING MINGHUI NEW ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2023980035236 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Anti backflow wellhead device for mid to deep geothermal wells Granted publication date: 20210105 Pledgee: Dongying rural commercial bank Limited by Share Ltd. Dongcheng sub branch Pledgor: DONGYING MINGHUI NEW ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2024980007354 |