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The Quantitative Gas
Measurement (QGM) system provides accurate, consistent,
and reliable gas-in-mud measurements while drilling.
QGM uses a highly sensitive, controlled-sample gas trap
that provides stable gas extraction over a wide range
of operating conditions. Calibration of the trap to actual
gas-in-mud values gives accurate and consistent gas-in-mud
measurements that can be used for meaningful analysis
and well-to-well correlation. This patented mud gas
trap contains a pyramid shaped agitator, redesigned
mud exit tube, agitator-rod seal, and internal baffles
to control mud flow and prevent splashing of mud in
the gas ports. In addition, QGM incorporates a new trap
calibration method-using a microwave still for gas extraction for
increasing the reliability and usefulness of mud logging
gas measurements as well as allowing faster and easier measurements.
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