WO2025181678 - A METHOD FOR INVESTIGATING AN AREA OUTSIDE A WELLBORE TUBULAR BY APPLYING HEAT AND MONITORING ACOUSTIC RESPONSE
National phase entry is expected:
Publication Number
WO/2025/181678
Publication Date
04.09.2025
International Application No.
PCT/IB2025/052031
International Filing Date
26.02.2025
Title **
[English]
A METHOD FOR INVESTIGATING AN AREA OUTSIDE A WELLBORE TUBULAR BY APPLYING HEAT AND MONITORING ACOUSTIC RESPONSE
[French]
PROCÉDÉ D'INVESTIGATION D'UNE ZONE À L'EXTÉRIEUR D'UN ÉLÉMENT TUBULAIRE DE PUITS DE FORAGE PAR APPLICATION DE CHALEUR ET SURVEILLANCE DE LA RÉPONSE ACOUSTIQUE
Applicants **
AARBAKKE INNOVATION AS
Inventors
HANSEN, Henning
Priority Data
63/558,013
26.02.2024
US
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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| Pages of Specification | * |
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International Searching Authority |
EPO
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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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| * | |
| * | |
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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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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1911 | |
| EPO | Filing, Examination, Granting | 8131 | |
| Japan | Filing, Examination, Granting | 2037 | |
| South Korea | Filing, Examination, Granting | 1809 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
18,628
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Abstract[English]
A method for detecting fluid movement in an annular space between a wellbore and a wellbore tubular includes inducing a temperature change in the wellbore tubular, fluid in the annular space and formations adjacent to the wellbore at a selected depth. Acoustic energy is detected at the selected depth. Fluid movement is determined using the detected acoustic energy.[French]
Selon l'invention, un procédé de détection de mouvement de fluide dans un espace annulaire entre un puits de forage et un élément tubulaire de puits de forage consiste à induire un changement de température dans l'élément tubulaire de puits de forage, un fluide dans l'espace annulaire et des formations adjacentes au puits de forage à une profondeur sélectionnée. L'énergie acoustique est détectée à la profondeur sélectionnée. Un mouvement de fluide est déterminé à l'aide de l'énergie acoustique détectée.