Yudhowijoyo, AzisRafati, RoozbehSharifi Haddad, AminRaja, Moiz ShahidHamidi, Hossein2019-04-182019-04-182018-06Yudhowijoyo, A, Rafati, R, Sharifi Haddad, A, Raja, M S & Hamidi, H 2018, 'Subsurface methane leakage in unconventional shale gas reservoirs : A review of leakage pathways and current sealing techniques', Journal of Natural Gas Science & Engineering, vol. 54, pp. 309-319. https://doi.org/10.1016/j.jngse.2018.04.0131875-5100ORCID: /0000-0002-1872-2410/work/159079298http://hdl.handle.net/2164/12180The authors would like to thank the School of Engineering at the University of Aberdeen for providing the required facilities to complete this study.11719245engmethane leakageshale gasgreenhouse gas emissionhydraulic fracturingaquifer contaminationunconventional reservoirsTA Engineering (General). Civil engineering (General)TAJournal article10.1016/j.jngse.2018.04.01354