Schlumberger
FloScan Imager System
Posted: 03 May 2004
The FloScan Imager production logging system profiles,
quantifies complex flow regimes in high-angle wells
Schlumberger Oilfield Services today announced the launch of its
FloScan Imager horizontal and deviated well production logging system.
The system is optimized for three-phase production logging that
provides customers with a complete flow analysis of complex downhole
environments.
The FloScan Imager system is designed to run eccentralized, or
against the wellbore wall, facilitating its conveyance in highly
deviated and horizontal wells. This ensures proper deployment of
its sensors across the vertical axis and allows measurements of
each phase velocity and holdup. Conventional production logging
tools were developed for vertical or near-vertical wells and therefore
cannot give effective answers when confronted with the complex flow
environment of highly deviated wells.
“Armed with complete knowledge of the downhole flow regime,
customers can make informed decisions to optimize production strategies
or perform remedial workovers,” said John Cadenhead, FloScan
Imager product manager, Schlumberger Oilfield Services. “The
FloScan Imager system has provided crucial in-flow profile information
in field tests performed in West Africa, the Middle East and the
North Sea.”
The FloScan Imager system uses innovative electrical probes that
distinguish between water and hydrocarbon hold-up and optical probes
that differentiate between gas and liquid hold-up, enabling a full
three-phase hold-up to be measured. Situated at the same depth as
the optical and electrical probes are five, approximately 1-in.
diameter spinners that measure phase velocity, which in turn is
used to calculate a multiphase velocity profile. This, when combined
with the multiphase hold-up profile, permits the calculation of
multiphase flow rates in real time to permit customers to maximize
well production.
Schlumberger Launches Production Logging Tool to Measure Multiphase
Flow in Highly Deviated Wells, Page 2
Fully combinable with other cased-hole logging tools, the FloScan
Imager system operates in temperatures and pressures up to 300°F
and 15,000 psi, and can be run in hole sizes ranging from 2 7/8-in.
to more than 9-in. on wireline, coiled tubing or as an integral
part of the MaxTRAC* downhole well tractor system.
About Schlumberger
Schlumberger is the world's leading oilfield services company supplying
a wide range of products and services from formation evaluation
through directional drilling, well cementing and stimulation, well
completions and productivity to consulting, software, information
management and IT infrastructure services that support core industry
operational processes.
The company employs more than 50,000 people of over 140 nationalities
working in 100 countries. Schlumberger also manages WesternGeco,
jointly owned with Baker Hughes, which is the world's largest seismic
company and provides advanced acquisition and data processing services.
In 2003, Schlumberger operating revenue was $11.4 billion.
For more information see visit www.slb.com
Posted by Richard Price,
Editor Pipeline Magazine
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