Abstract Petroleum geomechanics deals mainly with coupled problems requiring simultaneous consideration of changes in temperature, pressure, stress, and chemical potential (THMC). Major current challenges in this domain include: accurate delineation of in situ physical properties and conditions (T, [σ], p), especially for naturally fractured reservoirs; wellbore wall stability predictions in swelling and fractured shale strata; modeling and monitoring of multiple-stage hydraulic fracturing used for development of resources in low-permeability rocks; controlling or exploiting sand ingress into producing wellbores; predicting subsidence accurately enough so that rational design decisions can be made; mitigating or reducing the incidence of casing shear arising from subsidence or thermal reservoir stimulation; understanding and analyzing thermal production processes in viscous oil reservoirs; monitoring of deformations in and around reservoirs being subjected to complex processes; and, a newer development, using the deep sedimentary basin environment for the permanent and secure disposal of fluid and granular wastes. Given the importance of fossil fuel energy in our industrial societies (>80% of all primary energy provision), the rewards for better engineering are significant.
Geomechanical challenges in petroleum reservoir exploitation
KSCE Journal of Civil Engineering ; 15 , 4 ; 669-678
2011-04-01
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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