... direction reservoir characterization rate prediction prediction specimen sand rate coefficient hypothesis rate coefficient major lateral stress reservoir geomechanics spe isrm rock mechanics conference test system coefficient stress direction ARMA21 2020 Sand rate from laboratory tests...

... borehole borehole breakout pressure gradient geometry fluid dynamic stress direction elliptical geometry wellbore profile diameter cross-section Velocity distribution 1. INTRODUCTION Nowadays, as we are advancing in the harsh paradigms of oil and gas exploration, the problems related...

... and solute concentration of drilling fluid present different influence on wellbore stability: though cooling effect of drilling fluid could reduce wellbore shear failure risk by decreasing pore pressure and effective stresses, tensile fracture is easier to form in maximum principle stress direction due...

... maximum stress specimen stress direction Haimson intermediate stress failure feature band angle intermediate principal stress localization criterion Rudnicki Lode angle failure surface granite principal stress 1. INTRODUCTION Recently there has been a renewed interest in the United States...

... is prepared for the special oilfield in China, the conclusions drawn in this study are rather general for refracturing design. Upstream Oil & Gas initiation Redistribution stress direction Modeling & Simulation refracture initial fracture firstly re-fracturing reservoir numerical...

..., the problem of determining the field stresses is reduced to finding the direction and magnitude of horizontal stresses. Reservoir Characterization hydraulic fracturing mechanism horizontal stress coordinate system field stress focal mechanism stress magnitude microseismic event stress direction...

... Abstract A method is presented to qualify the maximum horizontal stress direction on basis of dipole shear sonic anisotropy in near-vertical wellbores. The proposed scheme follows a similar qualification standard to that used for stress observations on the basis of image logs and four-arm...

... crosses the natural fracture with an offset, where hydraulic fracture will deflect into the natural fracture for a certain distance and resume its propagation along the maximum stress direction at some weak points of natural fracture; complex reservoir fracture permeability fracture network...

... plane MPa stress direction 1. INTRODUCTION Hydraulic fracturing is an effective stimulation operation, which is widely used in oil and gas wells to improve the production of hydrocarbon. The implication of such a technique in perforated boreholes is still a challenging subject due to the complexity...

... of these stresses are recognized and their impact minimized. A simple technique for correlating the principal horizontal stress direction in a sedimentary rock mass with the preferential orientation of moisture induced expansion in a rock sample was introduced in the 1970s and has since gone unused in practice...

... Simulation MPa fracture propagation reservoir geomechanics Upstream Oil & Gas fracture cluster crack tip hydraulic fracturing wellbore pressure Aperture Change stress direction crack propagation damage mechanics mohr-coulomb parameter fracture boundary condition far-field stress fracture...

... to be indicators of the location of induced hydraulic fractures forming parallel to the maximum stress direction in the reservoir. Induced fractures failing in mode I tensile failure may not generate strong enough microseismic signal to be detected via microseismic monitoring methods, so often the microseismic...

... of roadways with reference to the major horizontal stress become important in ensuring its stability. Past studies, based on field observations and numerical modelling, concluded that maximum stability will be achieved in those roadways which are parallel to the major in situ horizontal stress direction...

... fracturing hydraulic fracture network geometry stress direction Modeling & Simulation fracture interaction anisotropy fracture network interaction propagation path fracture propagation equation 1. INTRODUCTION Multi-stage stimulation has become the norm for unconventional reservoir...

... by the Int. Soc. Rock Mech. [1], interpretation of stress measurement in this paper have been limited to the large number of HF prints, for they provide very reliable indication on minimum principal stress directions. Additionally the Hydraulic Fracture orientations collected from both vertical...

... the surface to the depth of interest. Statistical analysis was performed on breakouts observed in image log to determine the horizontal stress directions. The stress profiles for the wells were prepared as input for hydraulic fracture treatment modeling in horizontal gas wells of the reservoir zones. 1...

... of the hydrostat. This is because at that point the deviatoric portion of the test began under the constant mean stress condition. 0 20 40 60 80 100 120 140 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 Strain (mm/mm) A xi al S tr es s (M Pa ) Max Stress Direction Intermediate Stress Direction Min Stress Direction...

... to be extremely valuable in delivering complex wells safely while minimizing unplanned well construction costs. The main uncertainties on the MEM creation are the horizontal stresses. Breakout direction has been used to estimate stress direction, while its width is used for the horizontal stress magnitudes...

... polyaxial block test deformation wellbore integrity strength borehole investigation stress direction maximum stress level MPa block test stress level stress concentration perpendicular ARMA/USRMS 05-789 Slotted Boreholes for Improved Well Stability and Sand Management Addis, M. A. Shell...

... project stress measurement Reservoir Characterization Yamamoto anelastic strain recovery naganoken-seibu earthquake Upstream Oil & Gas Earthquake determination principal stress reservoir geomechanics borehole Magnitude stress estimate Fault Zone western nagano region stress direction...