Schlumberger Unveils New Spectroscopy Service

Schlumberger announced the addition of the Litho Scanner high-definition spectroscopy service to the Scanner Family rock and fluid characterization services.

The Litho Scanner service measures an enhanced suite of elements, including carbon, magnesium and aluminum, in real time to help provide a detailed description of complex reservoirs, including unconventional, shaly sand and carbonate. In addition, this latest wireline service provides a stand-alone quantitative determination of total organic carbon (TOC), critical for the evaluation of shale reservoirs.

"Customers need to understand formation composition and mineralogy, particularly in unconventional reservoirs to be able to make timely completion decisions," said Catherine MacGregor, president, Schlumberger Wireline. "Litho Scanner provides critical formation and reservoir data at the well site previously available only after extensive, time consuming and costly laboratory analyses."

The Litho Scanner service has been run successfully on more than 80 wells in all the major shale plays in North America, in South America and in conventional reservoirs. In Canada, the Litho Scanner service was successfully used to interpret the mineralogy in a lithologically complex shale gas reservoir comprising multiple clay types in addition to quartz, feldspar, calcite, dolomite, ankerite and pyrite. The determination of TOC enabled both an accurate quantification of total porosity and a quantitative assessment of reservoir quality.

In the Barnett shale, Litho Scanner data in conjunction with sCore lithofacies classification was used to identify the potentially most productive layers of an organic mudstone reservoir. This technology choice enabled an optimized completion design to maximize hydrocarbon recovery.

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