... reservoir simulators. Reservoir pore volumes must be equal to the true pore volumes as computed by the geomechanics module. To ensure that the second condition is satisfied, one can define a "reservoir porosity" ϕ* instead of true porosity ϕ, according to the following definitions: (1...

... Abstract The temperature effects of high power lasers on rock strength and mechanical properties are presented. It was found that the high temperature induced by lasers drilling through rock enhances porosity and permeability and reduces strength. High temperature causes microcracks, vaporizes...

... Abstract The Ekofisk Field is a large oil reservoir located in the Norwegian sector of the North Sea. About 8.2 meters of seafloor subsidence has occurred above this thick, high porosity chalk reservoir since production started in 1971. The seafloor subsidence is a result of reservoir...

... well in the North Sea. porosity prediction strength correlation deviation depletion sand production perforation pattern sintef petroleum research sand rate lt 2 sand mass prediction perforation drawdown perforation interval completion installation and operations reservoir...

... to mechanical complexity on the microstructural level. poroperm lithotype permeability reduction modeling reservoir characterization permeability permeability response stress path normalized permeability compaction critical state model porosity mean effective stress stress difference...

... exchange capacity instability pore fluid clay mineral specific surface porosity drilling fluid property wellbore design wellbore integrity structural geology drilling fluids and materials upstream oil & gas shale engineer drilling fluid chemistry journal identification drilling fluid...

... on a synhetic, though realistic, set of data and, despite the simplfying assumptions (single phase flow, constant fluid viscosity) could qualitatively reproduce the salient features of the behaviour of typical heavy oil wells. porosity equation bitumen sand production reproduce permeability...

... Abstract An accurate knowledge of porosity and permeability is crucial to accurate simulation of reservoir performance and enhanced reservoir management. Porosity and single-phase permeability of reservoir rocks is dependent on the stress experienced by the rock mass, which in the simplest case...

... strain porosity stress path reservoir characterization test plug mstrain ile 14 deformation strength bulk modulus pore pressure effective octahedral stress shear stress spe isrm 78152 reservoir geomechanics compression test ile 25 biot poisson reduction plug ile 11 effective stress...

... measured continuously using the pore pressure oscillation technique. Permeability was observed to range over six orders of magnitude depending on clay content and sliding. Measured porosity variations, post-test laser particle sizing and direct observation of thin-section microstructures allows development...

... displacement sagd reservoir characterization sagd project effective stress dilation expansion porosity oil sand steam chamber reservoir simulation injection pressure permeability complex reservoir enhancement thermal reservoir simulation demonstrate enhancement sagd process flow in porous...

... at any given porosity. For reservoirs in which the vertical stress is larger than the two horizontal stresses, there is also a potential to induce normal faulting in a depleting reservoir when the change of minimum horizontal stress, ΔS h , exceeds a critical fraction of ΔP p (the change in formation...

... Abstract The Valhall field, located in the Norwegian Sector of the North Sea, is a high porosity chalk field characterized by its weak reservoir rock. Global field behavior during depletion includes extensive compaction and associated subsidence. One highly successful completion alternative...