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Schlumberger Water Services Launches AquiferTest Pro 2010

Expert Hydrogeological Software Designed for Pumping Test and Slug Test Data Analysis

WATERLOO, Canada, September 10, 2010—Schlumberger Water Services (SWS) announced today the release of AquiferTest Pro* v.2010 pumping test and slug test data analysis software. This latest release provides more reliable curve fitting techniques and an expanded set of well and aquifer testing solutions that will dramatically improve the way hydrogeologists, environmental consultants and government agencies estimate hydraulic properties of aquifer systems.

AquiferTest Pro v.2010 offers “one-click” display of type curves and manual edits with the mouse that allows users full control to accurately match time-drawdown data, saving time and improving the quality of the analysis.  A suite of derivative smoothing methods allows for easier identification of the aquifer properties, well effects and boundary conditions, ensuring that the most appropriate solution method is selected for the test. It is now possible to conduct a more rigorous assessment of hydraulic properties under unique conditions such as horizontal pumping wells, well skin effects and slug tests in high conductivity formations. The improved Neuman analysis for unconfined aquifers showed a 90 times1 increase in performance over the previous versions.

“This release is built for hydrogeologists specializing in the estimation of aquifer properties and numerical modeling of the hydrogeologic environment,” said Martin Draeger, marketing manager, SWS. “Groundwater models require input values for hydraulic conductivity and storativity, often derived from pumping test and slug test analysis. With the improvements to curve-fitting techniques and derivative analysis in AquiferTest Pro, this will lead to more accurate estimates of these aquifer parameters, which provides for more confidence in the values assigned to the numerical model.”
Visit www.swstechnology.com/software to download a trial.

About Schlumberger Water Services

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 105,000 people representing over 140 nationalities and working in approximately 80 countries, Schlumberger provides the industry's widest range of products and services from exploration to production.
 
Schlumberger Water Services, a water-centric group within Schlumberger, operates globally and specializes in the development, management, and environmental protection of water resources. Leveraging experience and proprietary subsurface characterization technologies, Schlumberger Water Services offers mining, power, oil and gas, and public sector clients with the decision-making framework for addressing short and long-term water challenges. For more information, visit www.water.slb.com.

Schlumberger Limited has principal offices in Paris, Houston, and The Hague and reported consolidated revenues of $22.7 billion in 2009.

*Mark of Schlumberger
For further information, contact:

Susan GanzMedia Relations ManagerSchlumberger Tel:+1 713 513 2480sganz1@slb.com



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