Schlumberger Introduces New Mobile Testing Discharge Treatment

ClearPhase eliminates the need for storage, transport and offsite processing of fluids for safer testing in environmentally sensitive areas

HOUSTON, May 3, 2010—Schlumberger today announced at the 2010 Offshore Technology Conference the release of its ClearPhase* mobile testing discharge treatment. This new system, designed specifically for well testing, provides onsite discharge treatment and real-time monitoring with an auditable record of output quality.

“ClearPhase recovers residual oil to reduce oil-in-water concentration to less than 20 ppm and helps our clients get more out of their well test,” said Shehryar Lodhi, marketing manager, Schlumberger Testing Services. “This unique treatment service gives operators the freedom to test in environmentally sensitive areas.”

Schlumberger has successfully conducted tests with ClearPhase discharge treatment in Angola, Congo, Nigeria and Brazil.

The innovative system integrates TORR™ de-oiling technology licensed from ProSep Inc. with field-proven Schlumberger surface testing technology to create a treatment system specifically designed for well testing.

The ClearPhase system uses RPA® reusable petroleum absorbent from ProSep Inc.; no waste or by-products are generated during effluent treatment. This advanced technology helps eliminate the need for storage, transport and offsite processing of fluids for more efficient, cost-effective operations onshore and offshore.

ClearPhase handles water flow rates to 5,000 barrels per day, is rated for H2S service and is qualified to 212 degF and 150 psi. For added safety, the self-contained pressurized system does not require gas venting while testing. If necessary, fluids can be redirected back into the system to meet the most stringent compliance requirements.

ClearPhase, compatible with all test separators, is most efficient when used with the CleanPhase* well test separator with SmartWeir* technology. For additional information, visit www.slb.com/ClearPhase.

About Schlumberger

Schlumberger is the world’s leading supplier of technology, integrated project management and information solutions to customers working in the oil and gas industry worldwide. Employing approximately 78,000 people representing over 140 nationalities and working in approximately 80 countries, Schlumberger provides the industry’s widest range of products and services from exploration through production.

Schlumberger Limited has principal offices in Paris, Houston and The Hague and reported revenues of $22.7 billion in 2009. For more information, visit www.slb.com.

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For further information, contact:

Susan Ganz
Public Relations Manager–Western Hemisphere
Schlumberger
Tel:+1 713-939-2997
sganz1@slb.com