... porosity effective stress unconventional resource technology conference matrix reservoir characterization us government upstream oil & gas effective pressure basin carbonate fracture transmission intensity permeability URTeC: 3723022 Visualizing Fracture-Matrix Fluid Exchange...

... reservoir regime prediction corey parameter stress state capillary number fluid dynamics correlation experiment closure curve upstream oil & gas kr parameter relative permeability permeability effective stress fractured reservoir URTeC: 3703738 An Empirical Correlation to Predict...

... river basin pore pressure reservoir characterization well logging hydraulic fracturing pressure transient testing fluid dynamics mechanism sandstone effective stress in-situ biot coefficient pressure gradient hydrocarbon generation compression index biot coefficient frontier formation...

... dominant lithofacies, measured permeability at insitu effective stress varied between 10 nano-Darcy to 32 micro-Darcy. To obtain the permeability of the rock matrix, low resolution plug CT scans were used to screen the samples for any observable fractures. Moreover, permeability hysteresis (permanent...

... Abstract Effective stress represents the external load carried by the rock itself being a function of confining stresses and pore pressure. Confining stresses can be calculated from elastic rock properties, while effects of pore pressure, requires knowledge of the Biot-Willis coefficient...

... the field flowback and production data. Specially, the relationship between fracture conductivity and effective stress for both propped and unpropped fractures can be further correlated in a similar form with that of pressure-dependent fracture conductivity, which can be well used in the analytical, semi...

... of an additional effective stress due to capillary forces. While previous studies have shown that the additional effective stress due to capillary forces affects the elastic properties of unconventional shales, its effect on total porosity has not been studied. Our paper presents the results of an experimental...

... pressure distribution reservoir characterization reservoir surveillance shale gas complex reservoir fluid dynamics fracture interference virtual element method hydraulic fracture fracture geometry effective stress fracture boundary condition interference matrix permeability URTeC: 2435...

... characterization upstream oil & gas flow rate urtec 2631 pressure gradient flow in porous media fluid dynamics back pressure effective stress core plug permeability crude oil flow experiment core sample yongjin oilfield bedding fracture URTeC: 2631 Effect Rule and Mechanism of Bedding...

... velocities and assume that shales are cool, homogeneous, and that any overpressure is due to undercompaction. It is also generally assumed that the stress field is extensional such that the rocks currently are at the maximum burial depth/effective stress. It is often the assumption that standard pore...

... testing gas injection method reservoir simulation pvt measurement fluid dynamics simulator fracture propagation ng foam university effective stress viscosity natural gas fracture society of petroleum engineers technology conference permeability slick water urtec 3233 fracture surface...

... design depletion prediction workflow reservoir characterization wellbore integrity complex reservoir upstream oil & gas pore pressure gamma ray effective stress log analysis hydraulic fracturing drilling operation eaton depletion flag study well reservoir geomechanics well logging...

... pressure residual shear strength effective stress permeability fracture Abstract Pre-existing fractures in the subsurface can serve as preferential fluid flow pathways, and have the potential to be shear activated during hydraulic stimulation operations. This shearing could significantly...

... Abstract Water and gas permeability of fractures with or without proppants under in situ effective stress conditions is a key input parameter for numerical modelling of Stimulated Rock Volume (SRV) and optimization of proppants recipe used in hydraulic stimulation jobs for gas/oil shale...

... complex reservoir pore structure Reservoir Characterization Upstream Oil & Gas fractal permeability model Modeling & Simulation Fluid Dynamics maximum pore diameter Klinkenberg effect pore diameter diameter flow regime permeability model effective stress flow in porous...

... Abstract Constant confining pressure (CCP) tests and constant effective stress (CES) tests were widely conducted to measure shale permeability. The permeability data were explained by two types of permeability models, including apparent permeability models based on the slippage effects...

.... However, it is customary to explain this severe permeability reduction as a consequence of micro-fracture closure only and often ignore the impact of pore compressibility and connectivity loss. We present a novel approach to describe permeability reduction with the increased effective stress that takes...

... MIP, sample pores and pore throats experience increasing effective stresses that reduce their size. This suggests that the pore-diameter limit of MIP is greater than that predicted by the Washburn equation for unstressed samples. Once filled with Mercury, a sample pore experiences zero net effective...

... contributions of the matrix and fracture change at a critical effective stress at which the fractures close or open depending on whether the process is loading or unloading. The hysteresis phenomenon occurs as a result of partially reversible and irreversible deformations of the various shale rock constituents...

... samples under similar experimental conditions, compare steady-state and non-steady-state (i.e. pulse-decay) flow techniques for measuring absolute (oil) permeability and examine controls (e.g. effective stress, porosity) on liquid hydrocarbon permeability in these tight rock samples. Using...