World's first acoustic optical fiber installed

Sept. 22, 2009
Composite Energy Ltd., Stirling, UK, installed the world's first downhole distributed acoustic optical-fiber monitoring system in a coalbed methane well in Scotland, according to Fotech Solutions Ltd., Hampshire, UK, the fiber's manufacturer.

By OGJ editors
HOUSTON, Sept. 22
-- Composite Energy Ltd., Stirling, UK, installed the world's first downhole distributed acoustic optical-fiber monitoring system in a coalbed methane well in Scotland, according to Fotech Solutions Ltd., Hampshire, UK, the fiber's manufacturer.

The system is providing data such as downhole pump conditions, water level, flow profiles across production intervals, wellhead vibrations, and gas flow. Fotech notes that other potential uses include monitoring and locating sand production, determining tubing integrity, and detecting cross flow.

The system includes a low-cost telecoms-grade optical fiber and Flotech's Helios interrogator that provides acoustic or vibration information for each meter along the fiber's length, Fotech says.

Composite Energy, established in 2004, is active in developing CBM and holds 21 licenses covering coal fields in Scotland, England, and Wales.