Abstract: Assorted apparatus and methods optimize the detection of gas entrapped in drilling fluid. A mudlogging injection system can have a processor that autonomously injects sample gas into a gas chromatograph with near atmospheric pressures to optimize sample gas testing time and accuracy. The processor can autonomously detect errors, such as gas chromatograph detector drift, and conduct chromatograph adjustments to ensure accurate detection of different constituent gases entrapped in the drilling fluid.
Abstract: A mudlogging device may consist of a housing that is positioned above a ground level and proximal a wellbore. The housing can have a first interferometer and a second interferometer that are connected to a common pathway. The duel interferometer configuration may allow a gas sample to be concurrently tested by the respective interferometers.
Abstract: A system can be constructed and operated with at least a wellbore that is connected to a gas detection system. The gas detection system can house a control module, infrared sensor, and first and second pumps in a portable case. The first and second pumps may be respectively positioned on opposite sides of the infrared sensor and configured to provide uniform sample gas flow through the infrared sensor to detect multiple different types of gasses flowing from the wellbore.