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Schlumberger Limited. : Schlumberger Releases Wireless Downhole Reservoir Testing System

10/31/2013 | 10:26am US/Eastern
Quartet system enabled by wireless telemetry transmits data for real-time validation

HOUSTON, October 31, 2013-Schlumberger announced today the release of the Quartet* downhole reservoir testing system enabled by Muzic* wireless telemetry, which provides data in real time for validation so that critical information is available to meet the well test objectives. 

"When working in high-cost environments such as deepwater, it is important to be able to interact with downhole test tools, manage wellbore events and refine well tests in real time," said Sameh Hanna, president, Testing Services, Schlumberger. "With this new system capability, customers can manage wellbore events and refine well tests to ensure their objectives are met, and to gain a better understanding of the reservoir."

The Quartet system uses wireless bidirectional communication to provide downhole tool status, and pressure and temperature data, which allows test design modifications and validation of test data while reservoir testing is taking place. The system also enhances testing efficiency by making possible the isolation, control, measurement and sampling of the reservoir in a single run.

Field tests using the Quartet system with wireless telemetry have been run in Egypt, Indonesia, Qatar, Brazil, and Angola in environments ranging from onshore to deepwater. A total of 22 reservoir tests have been conducted with data from downhole to surface at a 100% communication success rate.

In Brazil, Petrobras and Schlumberger identified an opportunity to optimize deepwater well test operations using a real-time communication solution on a well in the presalt Santos basin. As a result of the collaboration, the Quartet system with wireless telemetry was successfully deployed, delivering flow and shut-in data to monitor operations and adjust the test program in real time. The visualization of downhole data during flow and buildup periods facilitated real-time interpretation of well test data, leading to all test objectives being achieved, and saving Petrobras costly deepwater rig time.

For more information on the Quartet system enabled by Muzic wireless telemetry, visit

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 120,000 people representing over 140 nationalities and working in more than 85 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 from continuing operations of $41.73 billion in 2012. For more information, visit


*Mark of Schlumberger

For further information, contact:

Lisa Ann Hofmann
Media Relations Manager
Tel:+1 713 689 7091
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