Observations of wave-induced pore pressure gradients and bed level response on a surf zone sandbar
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geophysical Research"
DOI: 10.1002/2016jc012557
Abstract: Horizontal and vertical pressure gradients may be important physical mechanisms contributing to onshore sediment transport beneath steep, near-breaking waves in the surf zone. A barred beach was constructed in a large-scale laboratory wave flume with… read more here.
Keywords: pore pressure; gradients bed; pressure gradients; sandbar ... See more keywords
Hydromechanical Modeling of Stress, Pore Pressure, and Porosity Evolution in Fold‐and‐Thrust Belt Systems
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geophysical Research"
DOI: 10.1002/2017jb014074
Abstract: We present coupled, critical state, geomechanical-fluid flow simulations of the evolution of a fold-and-thrust belt in NW Borneo. Our modelling is the first to include the effects of both syntectonic sedimentation and transient pore pressure… read more here.
Keywords: pore pressure; pressure porosity; evolution fold; fold thrust ... See more keywords
Estimation of adsorption-induced pore pressure and confinement in a nanoscopic slit pore by a density functional theory
Sign Up to like & getrecommendations! Published in 2018 at "Continuum Mechanics and Thermodynamics"
DOI: 10.1007/s00161-017-0602-x
Abstract: This study aims at characterising the adsorption-induced pore pressure and confinement in nanoscopic pores by molecular non-local density functional theory (DFT). Considering its important potential industrial applications, the adsorption of methane in graphitic slit pores… read more here.
Keywords: confinement nanoscopic; pore pressure; induced pore; pressure confinement ... See more keywords
The Effect of Pore Pressure on Hydraulic Fracture Growth: An Experimental Study
Sign Up to like & getrecommendations! Published in 2018 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-018-1500-7
Abstract: Laboratory experiments are conducted in this study to investigate hydraulic fracture initiation and propagation in porous test specimens in the presence of multiple fluid injection sources and anisotropic far-field stresses. Numerous laboratory observations of fracture… read more here.
Keywords: fracture growth; pore pressure; fracture; hydraulic fracture ... See more keywords
Hydraulic and Mechanical Responses of Porous Sandstone During Pore Pressure-Induced Reactivation of Fracture Planes: An Experimental Study
Sign Up to like & getrecommendations! Published in 2019 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-018-1706-8
Abstract: Herein, we subjected Kimachi sandstone samples to several experimental tests to identify the hydraulic and mechanical responses associated with fracture plane reactivation induced by elevated pore-fluid pressure. In particular, fracture plane reactivation was achieved through… read more here.
Keywords: pressure; pore pressure; hydraulic mechanical; fracture ... See more keywords
On the role of pore pressure in dynamic instabilities of saturated model granular materials
Sign Up to like & getrecommendations! Published in 2019 at "Granular Matter"
DOI: 10.1007/s10035-019-0915-5
Abstract: Drained triaxial axisymmetric isotropic and subsequently shear compression tests are performed on fully water-saturated short cylindrical samples of nearly monodisperse glass beads, initially assembled in a loose state by moist tamping and undercompaction technique. Both… read more here.
Keywords: pore pressure; dynamic instabilities; isotropic; role pore ... See more keywords
Deformation and mechanical properties of rock: effect of hydromechanical coupling under unloading conditions
Sign Up to like & getrecommendations! Published in 2020 at "Bulletin of Engineering Geology and the Environment"
DOI: 10.1007/s10064-020-01824-9
Abstract: Mechanical behavior and deformation characteristics of rock under unloading conditions are of particular significance for analyzing excavation-induced instability problems of underground rock masses. In this paper, triaxial compression tests with progressive unloading of confining pressure… read more here.
Keywords: pore pressure; confining pressure; initial confining; unloading conditions ... See more keywords
Pore Pressure and Stress Distribution around the Wellbore in Shale Formation Based on Generalized Plane Strain Principles
Sign Up to like & getrecommendations! Published in 2020 at "Chemistry and Technology of Fuels and Oils"
DOI: 10.1007/s10553-020-01095-w
Abstract: This article presents a new finite-element model for investigating the pore pressure and stress distribution around the wellbore in shale formations. In comparison with analytical and plane strain model, the proposed model is based on… read more here.
Keywords: model; stress distribution; pore pressure; pressure stress ... See more keywords
Cyclic and creep combination effects on the long-term undrained behavior of overconsolidated clay
Sign Up to like & getrecommendations! Published in 2020 at "Acta Geotechnica"
DOI: 10.1007/s11440-020-01078-5
Abstract: Soft soil subjected to cyclic loading typically exhibits an increase in excess pore pressure under undrained condition which brings the soil to an overconsolidated state. Then, under a subsequent large number of cycles (e.g. more… read more here.
Keywords: pore pressure; term undrained; long term; undrained behavior ... See more keywords
Pre-drill pore pressure prediction using seismic velocities for prospect areas at Beni Suef Oil Field, Western Desert, Egypt
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Petroleum Exploration and Production Technology"
DOI: 10.1007/s13202-017-0359-6
Abstract: Pre-drill prediction of formation pore pressure from surface seismic survey is very important for drilling, production, and reservoir engineering because it affects drilling operations and well-planning processes. If it is not properly evaluated, it can… read more here.
Keywords: drill pore; pre drill; pore pressure; using seismic ... See more keywords
Pore pressure prediction using seismic velocity modeling: case study, Sefid-Zakhor gas field in Southern Iran
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Petroleum Exploration and Production Technology"
DOI: 10.1007/s13202-019-00818-y
Abstract: Pore pressure estimation is important for both exploration and drilling projects. During the exploration phase, a prediction of pore pressure can be used to evaluate exploration risk factors including the migration of formation fluids and… read more here.
Keywords: pore pressure; sefid zakhor; velocity; prediction ... See more keywords