Ontology highlight
ABSTRACT:
SUBMITTER: Wisen J
PROVIDER: S-EPMC6969542 | biostudies-literature | 2020 Jan
REPOSITORIES: biostudies-literature
Wisen Joshua J Chesnaux Romain R Werring John J Wendling Gilles G Baudron Paul P Barbecot Florent F
Proceedings of the National Academy of Sciences of the United States of America 20191118 2
Oil and gas well leakage is of public concern primarily due to the perceived risks of aquifer contamination and greenhouse gas (GHG) emissions. This study examined well leakage data from the British Columbia Oil and Gas Commission (BC OGC) to identify leakage pathways and initially quantify incident rates of leakage and GHG emissions from leaking wells. Three types of leakage are distinguished: "surface casing vent flow" (SCVF), "outside the surface casing leakage" (OSCL), and "cap leakage" (CL) ...[more]