1. GeoQuest Research Centre, School of Earth and Environmental Sciences, University of Wollongong, Wollongong, 2522 NSW, Australia;2. Desert Research Institute, Nevada System of Higher Education, Reno, NV 89512, USA
Abstract:
Several on-site studies have been conducted on rock formations and soils where gases were collected into boreholes. The equipment consisted of packers isolating a chamber for gas collection. A pump allows gas transfer towards FT-IR sensors located at the surface. Such analytical approach shows several advantages for gas monitoring in boreholes: it allows variation detection with time of the partial pressure of gases; detection and evolution with time of the concentration of annex gases or markers; application to the injection and post-injection periods to determine possible deviations from a previously recorded baseline; and possible use of several boreholes in networks.