... are left behind in the higher-permeability foreset laminae with fluid flow perpendicular to the foreset laminae, while with flow parallel to the foreset laminae the displacement efficiency is good. To describe the displacement characteristics on a reservoir scale, we developed a procedure for calculating...

... parallel to the barriers than perpendicular to them. Discontinuous horizontal shale streaks can be responsible for reduced vertical oil drainage to the pumping well 1 ; therefore, a reasonable prediction of vertical permeability in such settings can be of value. This paper examines the special case...

..., Society of Petroleum Engineers elliptical inclusion waterflooding hydraulic fracturing perpendicular waterflooded region reservoir pressure finite height injection well cylinder enhanced recovery fracture length resistance earth stress horizontal earth stress fracture thermoelastic...

... fracture wellbore upstream oil & gas knox county geometry petroleum engineer journal poisson reservoir geomechanics perpendicular amplitude instrument structural geology Production enhancement of gas from wells draining low-permeability formations such as the Devonian shale series...

... studies consistently confirm the well-known fact that in-situ stress has a primary effect on fracture geometry, and that fractures propagate perpendicular to the least principal stress. In addition, we find that frictional interfaces in reservoirs can affect fracturing. We also have quantified some...

... no change in phase compositions or intensive properties. For this case, there are two directions perpendicular to the tie line (and perpendicular to each other). The rate of maximum change in phase compositions will be in the two-dimensional space (plane) determined by these perpendiculars. salinity...

... location dimensionless pressure buildup curve perpendicular straight line image well reservoir permeability Pressure Analysis of Multiple-Sealing-Fault Systems and Bounded Reservoirs by Type-Curve Matching Djebbar Tiab, SPE-AIME, U. of Oklahoma Henry B. Crichlow, SPE-AIME, U. of Oklahoma...

...Abbas Ali Daneshy The results of a theoretical and experimental investigation of inclined hydraulic fractures, reported in this paper, indicate that such fractures do not generally initiate perpendicular to the maximum tensile stress induced on the borehole wall. Unlike axial or normal hydraulic...

... a continuously or a porous system with either a continuously or a discontinuously varying permeability distribution perpendicular to the layer. The influence of perpendicular to the layer. The influence of capillary forces bas not been taken into account. A necessary condition for the validity of the equations...

.... SOCIETY OF PETROLEUM ENGINEERS JOURNAL ou ou aOx X+o~y ¢ 0s at ou wx ou_wy = - rl. as ax ay at (5) (6) The above equations pertain to coordinates x, y and y ', whose axes are respectively parallel to the layer (dip a), perpendicular to the layer and vertical. For the capillary term it is assumed thatl p 0...

... fingers adjacent to the leading finger. For a gravity finger lambda is defined as the ratio of finger width, to "height" of the medium perpendicular to hulk flow. This work confirms previous experiments and existing theory that for viscous fingering lambda approaches a value of 0.5 with increasing ratio...

... and subsequent limit surfaces are determined for samples loaded either perpendicular or parallel to the bedding planes. INTRODUCTION Previous experimental work in rock mechanics indicates that no mathematically tractable constitutive theory is inclusive enough to describe the mechanical behavior exhibited by all...

... fracture permeability expression perpendicular permeability axis anisotropy orientation anisotropic medium pressure gradient Drilling 1966. Society of Petroleum Engineers 1 6 1966 1 6 1966 Permeability of Idealized Fractured Rock R. W. PARSONS JUNIOR MEMBER AIME ABSTRACT...

... of microscopic expansion cracks. Induced porosity is independent of overburden pressure, whereas in beds lying perpendicular to the maximum principal stress, the induced permeability is pressure-dependent. It was also observed that overburden pressure effectively lowers the temperature at which carbonates in oil...

...G.P. Willhite; J.S. Dranoff; J.M. Smith Heat transfer rates were measured in sandstones with flow of gases perpendicular to the direction of energy transfer. Effective thermal conductivities keg ranged from 0.7 to 1.7 Btu/(hr)(ft)(F). The contribution of the solid phase appeared to be the most...

... _ ,. 0 FIG. 2 - TYPICAL CURVE SHOWING STRAIN DECAY PATTERN IN SYNnIETIC ROCK WITH GAUGE MOUNTED ON SURFACE. GAUGE LOCATED 1/2-IN. FROM LINE OF BIT IMPACT, ALONG CENTER LINE '00 ~ ~ , , , , '00 ·f ~ '00 ~ '00 PERPENDICULAR TO BIT EDGE. Oil: 6O ' doo;I , ~. Hj/ll in. ; 011< EnoI'g ~ Itb . 0; _ 1J"2in...

... and perpendicular to the bedding planes. Volume expansions are reported as the perpendicular expansion plus two times the parallel expansion. Expansion behavior of the sandstones was found to be controlled by the expansion characteristics of the quartz content. Differential expansion of the quartz grains and other...