... that cyclic loading leads to intrinsic values of the rock constitutive law. P. 321 tangent modulus reservoir characterization loading mpa reservoir geomechanics relation pore pressure upstream oil & gas experimental result cycling evolution stress path intrinsic property...

... P.M.T.M. Schutjens, SPE (1, T.L. Blanton, SPE (2, J.W. Martin (3, B.C. Lehr (1 and M.N. Baaijens (4 Abstract Laboratory experiments were done to investigate compaction of core taken from a 5 km deep, highly overpressured sandstone reservoir as a function of depletion, stress path, and time...

.... This parameter is not sufficient in representing aspects of rock behaviour such as stress path dependency and dilatancy, which require a full constitutive relation. Furthermore, the pore pressure changes due to the applied loads from the non-pay rock cannot be accounted for by simply adjusting the pore...

... on permeability for a suite of carbonate rocks spanning the porosity range of 14% to 42%. The depositional environment of the carbonates was a shallow marine reef with some secondary porosity development. Biaxial compression tests were carried out along various stress paths where the ratio of axial to radial...

... in water flooded intervals of the Ekofisk reservoir. The two sets of stress/strain curves are related by water saturation. reservoir geomechanics reservoir characterization chalk pore pressure axial stress initial porosity stress path reservoir chalk upstream oil & gas uniaxial strain...

... Abstract The paper presents a field case based upon a reservoir operated by Saga Petroleum in the North Sea. The reservoir stress path was determined from a series of minifrac and fall off analyses and step rate tests on various appraisal tests and injection wells. The results show a strong...

... during the pulling out phase is investigated. stress strain relationship effective stress compressibility pore pressure reservoir geomechanics fontainebleau correspond stress path sandstone mpa coefficient upstream oil & gas poroelasticity engineering characteristic diffusion time...

... testing stress path absolute permeability stress level christensen porosity compaction europe government united states government mechanical testing and permeability measurement pore compressibility reservoir geomechanics regime foged denmark government geological subdiscipline...

... porosity core damage compaction behaviour compaction curve rock mechanics horizontal stress reservoir netherlands government reservoir compaction deterioration geology reservoir geomechanics porosity reduction deformation stress path fluid dynamics europe government mechanism experiment...

... Abstract Three aspects of reservoir compaction/subsidence simulation for Ekofisk are addressed: (i) stress paths in the reservoir during depletion, (ii) impact of porosity heterogeneities in reservoir chalk on scaling laboratory compaction data to field behavior, and (iii) methods for treating...