@book{JRC105712, editor = {EAGE}, address = {Paris (France)}, year = {2017}, author = {Nelskamp S and Zijp M and Doornenbal H and Schovsbo N and Bocin Dumitriu A}, isbn = {9789462822191}, abstract = {Over the last decade, various international and national assessments of shale gas and shale oil resources for most EU-countries have been published. Due to methodological differences and in fundamental assumptions related to the quality and quantity of underlying geological information, these results are not comparable and in some cases not reproducible. This presentation focusses on the development and definition of a uniform methodology for estimating (in-place) shale gas and shale oil resources at the pan-European level within the context of the EUOGA study (EU Unconventional Oil and Gas Assessment). The presented methodology is established to determine estimates of GIIP (Gas Initially In Place) and OIIP (Oil Initially In Place) including associated uncertainty bandwidths originating from the various geological input parameters. The method is applied to 81 onshore shale gas or oil formations from 33 thermogenic and two biogenic basins located within the participating European countries. The results of the assessment include a geological description of the basins together with a general chance of success, a ranking of the individual assessment units and the final calculation of GIIP or OIIP for the formations. }, title = {European Unconventional Oil and Gas Assessment (EUOGA) - Development and application of a unified methodology}, url = {http://www.earthdoc.org/publication/publicationdetails/?publication=88371}, volume = {}, number = {}, journal = {79th EAGE Conference and Exhibition 2017: Energy, Technology, Sustainability - Time to Open a New Chapter}, pages = {}, issn = {}, publisher = {European Association of Geoscientists and Engineers, EAGE}, doi = {10.3997/2214-4609.201700654} }