Optasense Holdings Limited

Shell Canada Limited

Menno Mathieu Molenaar

David John Hill

Magnus McEwen-King

Cornelis Jan Kenter

Annemieke Catelijne Van Den Beukel

Karel Peter Maron

Johannes Gijsbertus Stammeijer

Paul James Hatchell

This application relates to methods and apparatus for monitoring hydraulic fracturing in well formation and fracture characterization using distributed acoustic sensing (DAS). The method involves interrogating an optic fiber arranged down the path of a borehole to provide a distributed acoustic sensor and also monitoring flow properties of fracturing liquid pumped into the well where the acoustic data from the distributed acoustic sensor is processed together with the flow properties data to provide an indication of at least one fracture characteristic.

Fracture characterisation

This application relates to methods and apparatus for monitoring hydraulic fracturing in well formation and fracture characterization using distributed acoustic sensing (DAS). The method involves interrogating a optic fiber () arranged down the path of a bore hole () to provide a distributed acoustic sensor and also monitoring flow properties of fracturing fluid pumped () into the well. The acoustic data from the distributed acoustic sensor is processed together with the flow properties data to provide an indication of at least one fracture characteristic.

Fracture characterization

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The Hague, Netherlands

Menno Mathieu Molenaar