... Abstract Changes in water saturation or rock wettability can lead to rock instability and sand production. The effects of saturation on rock strength have two origins - chemical sensitivity and changes in capillary forces. In this paper, a detailed study of capillary rock strength behavior...

... horizontal stress fracture reservoir geomechanics reservoir characterization coefficient stress regime depletion strength upstream oil & gas fluid pressure fault angle hydraulic fracturing subsidence north sea society wellbore design spe isrm 78226 cohesive strength university...

... Abstract The temperature effects of high power lasers on rock strength and mechanical properties are presented. It was found that the high temperature induced by lasers drilling through rock enhances porosity and permeability and reduces strength. High temperature causes microcracks, vaporizes...

... greater than 7 ft exist (e.g. due to sand production) around the wellbore. This study supports the use of these predictive methods in well completion design. drillstem testing production monitoring palmer upstream oil & gas prediction pay zone sand production gom shelf strength wellbore...

... Abstract This paper highlights the development of a coupled poroelastic geomechanical and fluid flow model which incorporates field and lab data with the objective to constrain the full in-situ stress tensor and rock strength in order to predict the stability of open hole horizontal completions...

... Abstract An engineering analytical model for sand mass prediction is presented. The model is based on a sand production function with parameters correlated to the uniaxial compressive strength of the formation. The model is used for the prediction of sand production in an inclined perforated...

... Abstract A model has been developed for sand production prediction in gas wells. The model is based on linear poroelasticity and brittle plasticity with a critical equivalent plastic strain as sand production initiation condition. It included effect of residual strength in the plastic zone...

... sand production mechanism reservoir geomechanics hpht well application reservoir surveillance cohesion artificial intelligence prediction completion installation and operations upstream oil & gas assessment production monitoring production control numerical model strength sand...

... pressure pore pressure reservoir characterization upstream oil & gas strength critical reservoir spe isrm 78150 isrm 78150 society shear failure depletion cbhp hmax predicting critical borehole pressure expression pressure Introduction Borehole instability and sand production...

... stress normalized by strength) and Reynold's number (a function of permeability, viscosity, density and flow velocity). Interpreted this way, the results of laboratory sand production experiments are used to derive an empirical relationship between loading factor, Reynold's number and the rate of sand...

... of shale-breaks in the producing zone Moderate strength in normal fault geotectonic setting Low variability of strength Linearly elastic behavior Non-severe, slight weakening when water-saturated Good permeability retained under post-elastic strains enhanced recovery strength...

... perforation sanding tests for model verification. Then, we employed the developed model to evaluate the key variables that govern volumetric sand production. This study indicates that sand production in weak reservoirs is influenced by a number of variables. These include rock strength, flow rate, oil...

... and an orthotropic pressure-dependent yield surface that is curved in the p-q plane, and which intercepts the hydrostatic axis in both tension and compression. A regularization procedure is also presented that ensures mesh invariance and correctly reproduces the dependence of strength on the size of the test...

... elliptical hole circular hole localization upstream oil & gas elliptical perforation strength perforation flow in porous media fluid dynamics reservoir characterization society sand control reservoir geomechanics roman gothic Introduction When the hydrocarbon reserves were plentiful...

... Abstract A laboratory testing program was performed to investigate the behavior of the sandstone of an HPHT reservoir when subjected to realistic in-situ stresses, pore pressures and stress changes due to production. Volumetric changes, stress path effects, plastic deformation and strength were...

... permeability upstream oil & gas geometry fracture injection rate influence reservoir characterization strength spe isrm 78172 reservoir geomechanics society rock mechanic oklahoma breakdown formula pressurization rate borehole fracture toughness hydraulic fracturing behavior...

... Basin and the Northwest Shelf demonstrates that faults can exhibit significant cohesive strength and that fault reactivation and trap breach is influenced by the development of shear, tensile and mixed-mode fractures. The mechanics of the reactivation process are influenced by grain strength and fault...

... data about the pressure field or by imposing a certain amount of smoothness. The strength of the regularization parameters are best determined using the model resolution of the inversion and synthetic cases. These also can be used to optimize the experimental design. Inversion of a synthetic case...

... Abstract This paper discusses the use of continuous scratch testing for evaluation of rock heterogeneity and effective correction and calibration of mechanical properties predictions using wire line logging. Understanding the vertical variability of rock properties (strength and moduli) along...

... horizontal stresses, and the orientation of the maximum horizontal stress. The range of admissible stress states can be further reduced by considering the strength of the bulk rock. We applied the method to estimate stress state about a 3.6 km deep well in granite at the Soultz Hot Dry Rock test site...