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OptaSense wins multi-well contract for 4D distributed vertical seismic profiling

FARNBOROUGH, UK -- OptaSense, a leader in distributed acoustic sensing (DAS), has contracted with Petroleum Development Oman (PDO) to provide the industry’s first multi-well 4D DAS vertical seismic profiling (VSP) system. 

OptaSense will deploy its DAS fibre-optic technology to monitor and map the performance of up to 12 steam-injected oil wells in a brownfield development at South Oman Salt basin. The service contract for time-lapse measurements is for three years, with a further two optional years and scalable scope of work, for deployment in multiple production settings.

Salim Rawahi, PDO GeoSolutions manager said, “We see this as a start of deployment of DAS technology in different reservoir monitoring programmes in PDO ranging from 4D, micro seismic to fluid flow measurements.”

OptaSense will record seismic signals from fibre-optic cables attached to each well’s production tubing, permanently installed and linked to a surface data gathering center. The final processed data set will be integrated into PDOs reservoir models, and assist in the determination of fluid substitution through production and hence contribute towards the positioning of infill wells.

VSP in 3D is a recognized alternative to surface seismic data acquisition in challenging environments of accurate subsurface imaging.

02/14/2014

 

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