WO2023089357 - MITIGATING FLUID LOSS OR INFLOW IN A CLOSED-LOOP GEOTHERMAL SYSTEM
National phase entry:
Publication Number
WO/2023/089357
Publication Date
25.05.2023
International Application No.
PCT/IB2021/060674
International Filing Date
17.11.2021
Title **
[English]
MITIGATING FLUID LOSS OR INFLOW IN A CLOSED-LOOP GEOTHERMAL SYSTEM
[French]
ATTÉNUATION DE PERTE OU D'AFFLUX DE FLUIDE DANS UN SYSTÈME GÉOTHERMIQUE EN CIRCUIT FERMÉ
Applicants **
EAVOR TECHNOLOGIES INC.
Inventors
HOLMES, Michael
TOEWS, Matthew
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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International Searching Authority |
CIPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2203 | |
| EPO | Filing, Examination, Granting | 14652 | |
| Japan | Filing, Examination, Granting | 2347 | |
| South Korea | Filing, Examination, Granting | 2421 | |
| USA | Filing, Examination, Granting | 4940 |
Total:
26,563
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
A method includes circulating a heat transfer working fluid in a closed loop between a geothermal well residing in a subterranean zone and at least one of a heat exchanger or a turbine. The well is substantially sealed to limit fluid loss of the working fluid into the subterranean zone. While circulating the working fluid, at least one of a viscosity of the working fluid or a pressure differential between the working fluid and the subterranean zone is controlled in relation to a flow of fluid between the subterranean zone and the well.[French]
L'invention concerne un procédé consistant à faire circuler un fluide de travail de transfert de chaleur dans un circuit fermé entre un puits géothermique se trouvant dans une zone souterraine et au moins un échangeur de chaleur ou une turbine. Le puits est sensiblement scellé pour limiter la perte du fluide de travail dans la zone souterraine. Pendant la circulation du fluide de travail, la viscosité du fluide de travail et/ou un différentiel de pression entre le fluide de travail et la zone souterraine est/sont régulé(e)(s) par rapport à un écoulement de fluide entre la zone souterraine et le puits.