Reduction of Oil Shale Losses

Abstract

Oil shale utilisation losses reach 70% in some cases. These are closely related to legislation, backfilling and waste rock usage. Much smaller sections include production of oil, electricity and chemicals in which most of the research and development is performed today. Current urgent topics for investigating, testing and developing of oil shale mining related questions are backfilling, mechanical extracting of shale, fine separation, selective separation and optimised drilling and blasting. Reducing oil shale losses will be more actual in the future, because the depth of mining increases and the taxes for resource and pollutants are increasing as well.

Interdependence Between Point Load Index, Compressive Strength and Crushing Resistance of Jordan Oil Shale and Relation to Calorific Value

“…At the same time, selective crushing could give considerable increase in yield [4]. Most of the selective breakage and crushing technologies have already been tested in Estonia on kukersite [5,6].…”

Mine Water as a Potential Source of Energy From Underground Mined Areas in Estonian Oil Shale Deposit

“…The oil shale bed descends 3 m per kilometre towards the south and the oil shale seam comprises interlayered limestone, which is a waste rock stored in waste rock heaps. Oil shale is mined using two methods: underground (room and pillar mining method) and surface (open cast mining method) [1,2,3]. The former method created underground free space and, as mining was carried out below groundwater level, the workings filled with water after their closure.…”