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1. (WO2005103766) METHOD AND SYSTEM FOR MONITORING OF FLUID-FILLED DOMAINS IN A MEDIUM BASED ON INTERFACE WAVES PROPAGATING ALONG THEIR SURFACES

Pub. No.:    WO/2005/103766    International Application No.:    PCT/EP2005/004188
Publication Date: Nov 3, 2005 International Filing Date: Apr 20, 2005
IPC: G01V 1/40
Applicants: SCHLUMBERGER CANADA LIMITED
SERVICES PETROLIERS SCHLUMBERGER
SCHLUMBERGER HOLDINGS LIMITED
SCHLUMBERGER TECHNOLOGY BV
SEGAL, Arkady
THIERCELIN, Marc, Jean
BESSON, Christian
Inventors: SEGAL, Arkady
THIERCELIN, Marc, Jean
BESSON, Christian
Title: METHOD AND SYSTEM FOR MONITORING OF FLUID-FILLED DOMAINS IN A MEDIUM BASED ON INTERFACE WAVES PROPAGATING ALONG THEIR SURFACES
Abstract:
The invention relates to monitoring of fluid-filled domains in various media including, for example, subterranean formations, construction elements, and bones. A method for determining characteristic sizes of a fluid-filled crack in a medium and a system for implementation thereof are claimed. In accordance with this method, oscillations of the fluid-filled crack are registered. Wave characteristics of standing interface waves propagating along the fluid-filled crack surfaces are determined based on the registered oscillations taking medium and fluid properties into account. The fluid-filled crack characteristic sizes are calculated based on the determined wave characteristics of the standing interface waves. Methods for detecting the creation or existence of a fluid-filled crack in a medium, for hydraulic fracturing in a subterranean formation, for detecting the cessation of propagation of a fluid-filled crack in a medium, as well as a method for determining properties of a fluid filling a layer in a medium, of the medium and of the layer are also claimed.