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Nanopores are extremely developed and randomly distributed in shale gas reservoirs. Due to the rarefied conditions in shale strata, multiple gas transport mechanisms coexist and need further understanding. The commonly used slip models are mostly based on Maxwell slip boundary condition, which assumes elastic collisions between gas molecules and solid surfaces. However, gas molecules do not reb...

Stability of Geosynthetic Lining Systems is, for a geotechnical standpoint, a complex matter. Three geomechanical questions were identified: sliding of the geosynthetic lining system on slope, pull-out strength of the geosynthetic anchorage at the top of the slope, rain erosion of the cap cover. Research programmes carried out in France on these topics, , are presented. Use of laboratory facili...

The development of engineering activities involving shales such as the extraction of shale gas and shale oil, the nuclear waste geological storage and the sequestration of CO2, has led to an increasing interest toward the geomechanical behaviour of this geomaterial. In the context of such engineering applications, a deep understanding of the hydro-mechanical behaviour of shales is of primary si...

Abstract By the example of one mining tailings dams on Kola Peninsula functionality its guarding dam was investigated. For this purpose, a hydrogeomechanical 3D model created, reflecting geometrical dimensions, geomechanical and hydraulic conditions operation. Using Plaxis 3D, calculations were made for 16 variants increase coefficient transverse filtration water through body. The dependences s...

Sand production is a common phenomenon in oil and gas reservoirs, which occurs when reservoir fluids exert sufficient drag force on rocks to erode the matrix. Numerical models for sand have been used understand sanding mechanisms forecast sand-production potential of formations design well completion, optimize production, prevent setbacks future operations. This paper presents mathematical mode...