Ultra-high-temperature downhole reservoir testing system offers high-resolution pressure measurements

Posted on 27 March 2013

The Quartet-HT system uses an all-ceramic, multi-chip module design and quartz pressure sensors, which ensure reliable multi-cycle operation and high-quality measurements at ultra-high temperatures.

The Quartet-HT system uses an all-ceramic, multi-chip module design and quartz pressure sensors, which ensure reliable multi-cycle operation and high-quality measurements at ultra-high temperatures.

Schlumberger has launched the Quartet-HT high-performance downhole reservoir testing system. This reservoir characterization service delivers high-quality measurements and reservoir-representative fluid samples with increased safety and efficiency in ultra-high-temperature reservoirs to 410°F (210°C).

“This complete downhole testing system can isolate, control, measure and sample all in a single run,” Sameh Hanna, president of Schlumberger’s Testing Services, said. “In addition, the new ultra-high-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, multi-cycle flexibility, single-trip efficiency and high-resolution quartz measurements. The new system combines four leading downhole technologies specifically engineered 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 in France, the UK and the US. The quartz gauge electronics used in the Quartet-HT system underwent 3,000 hrs of qualification testing above the maximum operating temperature limit. The quartz gauges have been used for more than 20,000 cumulative hrs 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°F (204°C).

For more information on the Quartet-HT system, click here.

Quartet-HT, CERTIS, IRDV, Signature and SCAR are marks of Schlumberger.

Leave a Reply

*

FEATURED MICROSITES


Recent Drilling News

  • 17 December 2014

    Saudi Aramco: Four factors for a sustainable drilling business

    Despite the modest growth in demand and drop in oil prices today, the long-term outlook for industry is healthy. “Our industry will need to add around 40 million bbl per day for new capacity...

  • 16 December 2014

    Ensco development program produces driller in 3 years

    Ensco’s Accelerated Development Program (ADP) takes a “green” individual and, within a three-year period, trains them to become a driller. In response to personnel shortages in various areas, including drilling...

  • 16 December 2014

    Saudi Aramco: ‘Industry cannot afford to lose talent when the economy is down’

    Industry is facing a human resources challenge in two areas: the ageing workforce and the shortage of skills, Mohammed Al Sellemi...

  • 16 December 2014

    Nanotechnology has potential to improve tool performance in extreme environments

    In terms of temperature stability and corrosion, tools have limitations, especially in extremely challenging drilling environments. Jothibasu Ramasamy...

  • 16 December 2014

    Colville: WCI provides forum to evaluate practical, economical advances in well control practices

    Major players throughout industry are joining forces under the Well Control Institute (WCI). The mandate of WCI is “to provide the definitive forum...

  • Read more news