... from actual wells. The algorithm utilizes a hybrid analytical and computational approach to compute induced pore pressures during the injection of fluids into the wellbore together with the associated poroelastic stresses as functions of the underlying physical parameters involved (including fracturing...

... between the two wells are also examined. 2. FRACTURE PROPAGATION ANALYSIS 2.1. Coupled fluid-solid phenomena The basic theory of poroelasticity to express the relationship between total stress, effective stress and pore pressure (Biot 1941): (1) Where is the total stresses (Pa), is the effective...

... is a representation of rock properties, pore pressure and stresses in the field. As in any model, there are uncertainties associated with inputs, measurements, the observations and the mathematical model itself, which affect the ability to accurately predict the desired phenomenon. Accounting for these uncertainties...

... principal stress horizontal principal stress principal stress pore pressure beijing closure pressure relationship hydraulic fracturing drillstem/well testing fracture closure pressure hydraulic fracture diagnostic fracture injection test fracture maximum horizontal principal stress cohesive...

... the rock mechanical properties are not profoundly studied. This reservoir, which is mainly composed of carbonate (limestone), has been divided into six subsequent reservoir units: MA, MB11, MB12, MB21, MC1and MC2. An issue with the area of study is that shear wave velocities and pore pressure measurements...

... and pore pressure), and finally, verifying the geomechanical model via ARMA/DGS/SEG International Geomechanics Symposium 20 21 Elastic or Poroelastic? Dual Approaches to Underbalanced Drilling Hynes, L. Independent Contributor, Amsterdam, The Netherlands K pi ski, M. AGH University of Science...

... cubic law, which incorporates the effect of fracture hydraulic aperture, mechanical aperture, roughness, and contact area. To validate the model, we collected a database of experimental data from the literature, reporting fracture permeability in terms of pore pressure, confining stress, and other rock...

... ABSTRACT A heat extraction process between hot dry rock formation and a cylindrical well with a tubing installed inside is simulation. A wellbore/reservoir coupling formulation is proposed and solutions for temperature, fluid pressure along the annulus and tubing, and the induced pore pressure...