Technique and system for measuring a characteristic in a subterranean well

US6751556B2 · kind B2 · utility

Assignee

• Sensor Highway Limited · GB

Inventors

• Robert J. Schroeder · Newtown, US
• Jeffrey A. Tarvin · Brookfield, US
• Rogerio Tadeu Ramos · Bethel, US
• George A. Brown · Beaconsfield, GB

Key dates

• Filing date: Dec 12, 2002
• Grant date: Jun 15, 2004
• Expiry date: Dec 12, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G01K15/002
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A technique usable with a subterranean well includes deploying a first optical sensor downhole in the subterranean well. The technique includes observing an intensity of backscattered light from the first optical sensor to measure a distribution of a characteristic along a portion of the well. The technique includes deploying a second sensor downhole to measure the characteristic at discreet points within the portion. The second sensor is separate from this first sensor and includes at least one interferometric sensor.