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of the Rankine flow field is too far away to affect wellbore closure. 4.3 Particle paths near open wellbores in salt A vertical, open wellbore drilled into a salt layer sets up a Rankine flow pattern in horizontal ...
the particles to different branches of the Y-junction is generated by cross- flow fluid pulses at the cross-junction, which deflects the particles , arriving at the center of the sorting inflow channel towards ...
measurements on cores and low frequency (∼10 to 100 Hz) seismic band velocities in saturated fluid -filled rocks (Winkler 1986). Fluid saturation will further separate the static and dynamic values relative ...
$| is the internal pressure gradient. The third term on the right-hand side defines the shear stress by means of the fluid viscosity η and the velocity field. The simplest way to describe the direction of salt flow ...
(resistance force increases when the slip velocity increases) at high velocities . This effect was registered in laboratory tests with clay extracted in drilling one of the sections of Nankai trench (Ikari et al ...
exsolution (e.g. Llewellin & Manga, 2004). This, in turn, can promote a transition from a Poiseuille to plug-like flow (Hale, 2007; Hale et al., 2007), facilitating the formation of discrete shear zones near ...
al1998). Hydraulic fracturing became a routine industrial practice to stimulate hydrocarbon production from tight reservoirs (King 2010). Besides generating new flow paths, the pressured fluids ...
, a compressional wave velocity of 4000 m s-1, a shear wave velocity of 2300 m s-1, and a density of 2.5 g cm-3 were used. The compressional wave velocity of the borehole fluid was 1600 m s-1, the density was 1.0 g ...
properties of reservoir rocks including porosity, permeability, water saturation, electrical resistance, direction of fluid flow and pore pressure (e.g. Leverett 1941, Archie 1942, 1952, Biot 1953, Morgan ...
for two-phase flow condition and can be used to model an unsaturated porous medium. However, Pride's equations can also be used to deal with the unsaturated medium if one takes the two-phase fluids ...
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