Lawrence Berkeley National Laboratory masthead A-Z Index Berkeley Lab masthead U.S. Department of Energy logo Phone Book Jobs Search
Tech Transfer
Licensing Interest Form Receive Customized Tech Alerts

Compact, High Sensitivity Acoustic Fiber-Optic Sensor

IB-2013-106

APPLICATIONS OF TECHNOLOGY:

ADVANTAGES:

ABSTRACT:

Barry Freifeld of Berkeley Lab has developed a compact fiber-optic acoustic sensor for the characterization of subsurface oil and gas reservoirs and for monitoring the condition of dams, levees, or other engineered structures.

The Berkeley Lab technology will help industry overcome the challenge of protecting fiber-optic cables from the harsh conditions of wellbore installation and cementing, allowing industry to leverage the exceptional sensitivity of fiber optics to acoustic energy from all incident angles. Unlike previous fiber-optic cable sensors, the Berkeley Lab technology’s low form factor allows it to be installed either adjacent to a well casing or embedded within, without the additional cost of widening boreholes and altering permanent cement casings.

The superior sensitivity of the Berkeley Lab acoustic fiber-optic sensor is due to its unique optical fiber configuration, which limits optical losses when the fiber cable is folded or coiled inside the sensor housing. The sensor’s design allows the deployment of large numbers of three component sensors facilitating permanent active-source and passive monitoring.

DEVELOPMENT STAGE:  Concept

STATUS:  Patent pending. Available for licensing or collaborative research.

SEE THESE OTHER BERKELEY LAB TECHNOLOGIES IN THIS FIELD:

Novel Tube-in-Tube System Simplifies Subsurface Fluid Sampling, IB-2802

Behind Casing Fluid Sampler to Monitor Groundwater at Hydraulic Fracturing Operations, IB-2013-087

REFERENCE NUMBER: IB-2013-106

See More Enviromental Technologies