Schlumberger Announces New Mobile Laboratory Service For Pressure-Volume-Temperature Analysis; New PVT Express Delivers Analysis In Just Hours At the Wellsite.

Energy Editors/Business Editors

HOUSTON--(BUSINESS WIRE)--Oct. 6, 2003

Schlumberger Oilfield Services today announced its new PVT Express(a) wellsite fluid analysis service, which can deliver reliable fluid property results in as little as eight hours in turn around processing time.

PVT Express delivers a step change in pressure-volume-temperature (PVT) fluid analysis turn around time, using less than 50 ml of fluids, enabling informed decisions during logging and well-testing operations and eliminating costs associated with traditional fluid analysis operations. Traditional laboratory services are conducted in fixed-location laboratories and take between six to eight weeks to analyze fluid measurements and require 200-4000 ml of fluid.

In a well offshore Newfoundland, the PVT Express system delivered two complete PVT studies within hours of recovering the MDT samples at the surface. These results matched the known PVT properties from the exploratory well, eliminating the requirement to do a well test and resulting in earlier economic analysis for completion design and speedier field development.

"PVT Express brings to the oil and gas Industry a technology that is a unique laboratory system which delivers to our clients early PVT results for critical well site decisions," said Sudhir Pai, business development manager for testing and completions, Schlumberger Oilfield Services. "This mobile laboratory validates sample quality during wireline formation testing, drill stem testing or production testing operations."

Its mercury-free laboratory equipment and modular rugged construction allows it to be fully transportable by land, sea or air. The PVT Express hardware/software laboratory includes fiber-optic sensors to measure saturation pressure of gas condensates, volatile oils and black oils. Patented helium ionization detectors are used in dual gas chromatography to perform C12+ gas analysis and C36+ liquid analysis. The Schlumberger proprietary PVT Expert software model processes all laboratory measurements and instantly provides the final PVT report. Additionally the PVT Expert software model assesses the reliability of the PVT results to ensure data quality.

For additional information, go to www.slb.com/oilfield/pvt.

About Schlumberger

Schlumberger is a global oilfield and information services company with major activity in the energy industry. The company employs 78,000 people of more than 140 nationalities working in 100 countries and comprises three primary business segments. Schlumberger Oilfield Services is the world's premier oilfield services company supplying a wide range of technology services and solutions to the international oil and gas industry. WesternGeco, jointly owned with Baker Hughes, is the world's largest and most advanced surface seismic company. SchlumbergerSema is a leading supplier of IT consulting, systems integration, and network and infrastructure services to the energy industry, as well as to the public sector, telecommunications and finance markets. In 2002, Schlumberger operating revenue was $13.2 billion. For more information, visit www.slb.com.

(a) Mark of Schlumberger