... rock cavern is located below the ground-water level so that the pressure of ground-water prevents all leakages of oil and gas to the surrounding rock. In case of an exhausted mine, there should be a positive ground-water pressure in all areas where oil will be stored so that ground-water will seal...

...POLYTANK UNDERGROUND LIQUID STORAGE I. Sagefors and A. Calminder WP System AB, Drottninggatan 99, Stockholm, Sweden ABSTRACT A group of vertical cylindrical rock caverns is the basic idea of the POLYTANK concept. Ver- tical caverns can sometimes offer a good solution to underground storages...

... of a water curtain between two oil storage rock caverns. Attention is drawn to the problem of bacterial growth at the oil/water interface. The importance of establishing water curtains be- fore filling up caverns with oil products is emphasized. Finally, some means of preventing bacterial growth is discussed...

... multiphase flow aperture roughness hydraulic fracturing maneri cavern gas Bubble rock cavern Upstream Oil & Gas fracture aperture regime gas escape critical gradient surface tension storage rock fracture fracture gas pressure Fluid Dynamics two-phase flow liquid terminal...

...AN UNDERGROUND STORAGE FOR SPENT NUCLEAR FUEL IN SWEDEN B. Gustafsson*, T. Hedman** and H. Larsson ·Swedish Nuclear Fuel Supply Co. ··Oskarshamnsverkets Kraftgrupp Aktiebolag Swedish State Power Board, Stockholm, Sweden This paper describes how a rather conventional rock cavern will be used...

...THE AVESTA PROJECT A TEST PLANT FOR STORGE OF HEATED WATER IN ROCK CAVERNS S. Bjurstrom*, P. O. Karlsson** and J. Martna** *Swedish Rock Mechanics Research Foundation - BeFo, Box 5501, 114 85 Stockholm, Sweden "Swedish State Power Board, 16287 Vallingby, Stockholm, Sweden ABSTRACT Storage of heated...

... excavated in Precambrian rock. Recent results of a geotechnical test program are described and the corresponding in-situ and laboratory measurements are considered in assessing design of rock cavern support systems, cavern liner requirements, and rock cavern stability under both thermal and seismic loads...

... waste management man-made barrier soil material storage facility low-level waste rock cavern repository alma project final repository preliminary study concentration temporary storage facility bentonite radioactivity nuclide rock vault final repository Sweden THE ALMA PROJECT...

... An almost spherical rock cavern is surrounded at some distance by a fairly thick clay barrier. Nuclear waste canisters are mounted in cylindrical holes traversing large concrete balls. These are stored in the cavern together with similar concrete balls filling up the entire cavern space...