Rigsite chemostratigraphy provides timely formation evaluation tool

Operators now have access to rigsite chemostratigraphy (chemical stratigraphy) to provide timely information for formation evaluation, picking formation tops, and identifying horizons for coring or casing points.Previously, technicians could only provide chemostratigraphic analysis, or "formation fingerprinting" on cuttings and core samples using the rock's geochemistry, in the laboratory.Halliburton Co.'s Sperry-Sun Drilling Services and Westport Technology Center International, Houston, in alliance with UK-based Chemostrat Ltd., began in June providing rigsite chemostratigraphy service using laser-based technology.The group developed a device known as a laser-induced breakdown s...

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