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Keywords: stress path
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 23–25, 2024
Paper Number: SPE-220695-MS
.... In either case, strong dependence of injectable fluid volume on the rock strain hardening parameter is observed. This result is rationalized by studying the time-dependent evolution of the elastoplastic stress paths corresponding to the drained and undrained caprock solutions. geology reservoir...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201642-MS
... geometry pore pressure horizontal stress effective stress stress path vertical stress Introduction Hydrocarbon field characterization with geomechanics provides a new insight on integrated geological, mechanical and flow domains in oil and gas reservoir studies. Stress analysis helps...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-174741-MS
... for the complex structures drilled today), the change of FG with depletion (is the “Stress Path” linear and uniform across the field, or is structure and potential stress arching important?), and by how much we can increase the near-wellbore FG using wellbore strengthening techniques such as StressCage...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170850-MS
... instability water injection water production reservoir fault reactivation variation unconsolidated sandstone reservoir Sandstone Reservoir deformation reactivation fracture bsw value stress path Introduction Depletion has been considered by several authors in geomechanics, since...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166081-MS
... ) Stress path or stress depletion ratio is defined as the change of horizontal stress corresponding to the pore pressure reduction. Accordingly, a spatio-temporal stress path can be formulated using Eqns. (20) and (21) , as follows: (22) σ rrD − σ rrDi P D − P Di...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 8–10, 2012
Paper Number: SPE-160092-MS
... and 5070% for isotropic unloading. Oldakowski (1994) performed triaxial compression, isotropic unloading and anisotropic unloading. He concluded that the absolute permeability change is a function of the pore volume changes, which is a function of the stress path followed. Also, the absolute permeability...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 30–November 2, 2011
Paper Number: SPE-146419-MS
..., depending upon the rock's location relative to the fracture and its strength and stress path. These findings demonstrate that rock stability needs to be considered when determining drawdown limitations in sand control completions, in order to avoid unexpected PI degradation. modeling & simulation...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 2009
Paper Number: SPE-124713-MS
... Artificial Intelligence log analysis drillstem/well testing depletion Drillstem Testing Reservoir Compaction calibration pressure depletion reservoir geomechanics Modeling & Simulation overburden geomechanical model vertical displacement minimum stress stress path reservoir pressure...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–29, 2004
Paper Number: SPE-90265-MS
... percentage of porosity and permeability reductions was experienced regardless of the original values. It is also understood that stress paths have a large influence on horizontal and vertical permeability as well as on porosity. The elastic uniaxial strain model is used in reservoir engineering mostly...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 29–October 2, 2002
Paper Number: SPE-77639-MS
... stress path loading mean effective stress complex reservoir compressibility reservoir characterization laboratory porosity permeability reservoir effective stress correction reservoir stress porosity and pore compressibility obtained unconsolidated deep-off shore correspond plastic...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 3, 2001
Paper Number: SPE-71337-MS
... of this paper is present a model for compaction behaviour and permeability change as a function of stress path and porosity, based on published and new experimental data. The model can be used to investigate the effect of stress path on compaction and porosity and permeability change, even in the absence...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 6–9, 1996
Paper Number: SPE-36535-MS
... Abstract The influence of production-induced changes in reservoir stress state on compressibility and permeability of weakly cemented sandstones has been analyzed. Laboratory experiments simulating reservoir depletion have been conducted for the full range of stress paths that a reservoir may...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 6–9, 1996
Paper Number: SPE-36697-MS
... reservoir geomechanics prediction permeability horizontal stress stress path sandstone reservoir production-induced change upstream oil & gas stress state reservoir stress state experiment reservoir stress path pore pressure drawdown pore pressure machine learning reservoir...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–6, 1993
Paper Number: SPE-26437-MS
... that α is approximately unity for high porosity chalks. 9 Measurements of the total minimum horizontal stress as a function of pore pressure drawdown have been used to provide an understanding of the boundary conditions on the reservoir and the stress path followed by reservoir rock during...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 1992
Paper Number: SPE-24756-MS
... permeability vary markedly with stress path (defined as the change in effective horizontal stress/change in effective overburden stress from initial reservoir conditions). Hence, changes in reservoir properties measured under hydrostatic loading conditions may be very misleading if applied to a reservoir...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 1992
Paper Number: SPE-24911-MS
... in reservoir chalk, and thereby increased imbibition rates and waterflood sweep efficiency. ekofisk field pore pressure chalk shear failure shear stress fracture stress path injection well reduction horizontal stress reservoir enhanced recovery reservoir temperature reservoir...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 6–9, 1991
Paper Number: SPE-22755-MS
...-in pressure data from 37 hydraulic fractures conducted during the past 15 years. The effective stresses in the reservoir increase linearly with pore pressure drawdown, but at different rates. The reservoir stress path, defined as the ratio of the change in effective minimum horizontal stress to the change...

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