Hydrocarbon detection in the gas phase can be a powerful tool to guide downstream operations for the oil & gas industry. This application requires highly sensitive, selective and robust spectroscopic techniques. In this work, a quartz-enhanced photoacoustic sensor system designed to detect methane and ethane concentration levels in the part-per billion concentration range by employing a single interband cascade laser emitting at 3345 nm is reported. Measurements at both low and high pressure were carried out and mixtures simulating typical downhole compositions were analyzed.
Angelo Sampaolo, Sebastian Csutak, Pietro Patimisco, Marilena Giglio, Giansergio Menduni, Vittorio Passaro, Frank K. Tittel, Max Deffenbaugh, and Vincenzo Spagnolo, "Interband cascade laser based quartz-enhanced photoacoustic sensor for multiple hydrocarbons detection," Proc. SPIE 10540, Quantum Sensing and Nano Electronics and Photonics XV, 105400C (Presented at SPIE OPTO: January 28, 2018; Published: 26 January 2018); https://doi.org/10.1117/12.2288336.
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