method for analyzing drilling mud gas brought to the surface as the art of a wellbore drilling process, and system for analyzing drilling mud gas brought to the surface as part of a wellbore drilling process

摘要

method for analyzing drilling mud gas brought to the surface as part of a wellbore drilling process, and system for analyzing drilling mud gas brought to the surface as part of a wellbore drilling process Systems and methods for high speed slurry gas profiling are described. A general mud gas profiling workflow uses tandem mass spectroscopy. The workflow first involves separating the volatile hydrocarbon components (typically cs and below) from the drilling fluid using a fluid extractor (or degasser). Extracted gases are then diluted in air and transported to an analyzer which measures the concentration of each of these gases in the air. A tandem mass spectroscopy-based analyzer is used that is capable of quantifying each of these hydrocarbon components, including resolving isomeric species, while tolerating the presence of non-hydrocarbons. According to some embodiments, triple quadripole mass spectroscopy is used.