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 www.slb.com/Quartet-Muzic.

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Schlumberger announced today the launch of the Quartet-HT* high-performance downhole reservoir testing system. This latest addition to the Schlumberger portfolio of reservoir characterization services delivers high-quality measurements and reservoir-representative fluid samples with increased safety and efficiency in ultrahigh-temperature reservoirs to 410 degF (210 degC).

“This complete downhole testing system can isolate, control, measure and sample all in a single run,” said Sameh Hanna, president, Testing Services, Schlumberger. “In addition, the new ultrahigh-temperature technology allows us to position our test tools deeper and closer to the reservoir for the best possible test results and help our customers more accurately characterize their reservoirs.”

The Quartet-HT system offers significant advantages over conventional drillstem test string designs, including lower operating pressure, fewer seals and connections, multicycle flexibility, single-trip efficiency, and high-resolution quartz measurements. The new system combines four leading downhole technologies engineered specifically for high-performance ultrahigh-temperature reservoir testing: CERTIS* high-integrity reservoir test isolation system, IRDV* intelligent remote dual valve, Signature* quartz gauges and SCAR* inline independent reservoir fluid sampling.

Rigorous qualification testing, which includes shock, vibration, temperature and pressure, was performed at test facilities located in France, the United Kingdom and the United States. The quartz gauge electronics used in the Quartet-HT system underwent 3,000 hours of qualification testing above the maximum operating temperature limit. The quartz gauges have been used for more than 20,000 cumulative hours of reservoir testing operations including operations in Asia, Australia and the Middle East where the tool has successfully recorded entire jobs at temperatures exceeding 400 degF (204 degC).

For more information on the Quartet-HT system, visit www.slb.com/Quartet-HT.

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