...) data was complemented by measured data: pore pressure and the minimum horizontal stress (mini-frac data). Results were verified via a rigorous analysis of a number of waterflood campaigns. These confirmed that in general fracturing conditions can be (substantially) higher than the generally assumed...

... rebounding pressure phenomenon as pore pressure decreases. For different models, the sensitivities of several parameters in geomechanical equations and Langmuir isothermal equation are analyzed by Monte Carlo method, and these key sensitive parameters have impact on the simulation results for unconventional...

... Abstract Massive hydraulic fracturing and re-fracturing jobs have become very popular operations for developing tight oil & gas reservoir and unconventional shale gas reservoir in China. Experiencing long period of production and injection, in-situ pore pressure, stresses and saturation...

..., the vugs are treated as virtual volumes in this study. For each vug, the fluid exchange at the vug-matrix interface is dynamically calculated with time evolution and the pore pressure in the vugs is updated through considering both the fluid material balance and the volume change due to the mechanical...

.... The general formulation for a fractured reservoir by a dual porosity model is developed and pore pressures and stresses near a wellbore and a hydraulic fracture are highlighted for production enhancement as the permeability change near a wellbore or a hydraulic fracture may contribute to such an enhancement...

... Abstract A dual porosity formulations coupled geomechanics to two-phase fluid Flow in fractured reservoirs are developed and a Petrov-Galerkin finite element method is utilized. Formulations for saturation, with a time variable only, is incorporated with the displacement and pore pressures...

... stress field, pore pressure and rock properties across the field and specifically around the planned wells in order to capture the 3D effect of reservoir depletion such as arching effects. This analysis improved the field development planning by integrating wellbore stability risk assessment, fault...

... compressibility. This means that the stresses in the reservoir and surrounding rocks may not be in equilibrium with the pore pressure, since the geomechanical behavior is not considered. The ideal solution for this coupled problem is to introduce the geomechanical effects through the stress analysis solution...