Results 241 to 250 of about 957,306 (285)

Realistic Fracture Conductivities of Propped Hydraulic Fractures

SPE Annual Technical Conference and Exhibition, 1993
ABSTRACT Preliminary results of an experimental programme to determine the significance of dual phase flow in propped fractures are presented. Gas-water flows are considered. The results demonstrate that, even in cases of minimal water production, effective permeabilities may typically be reduced by a factor of 2, or more.
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Propped Fracture Conductivity in Shales

Volume 6: Polar and Arctic Sciences and Technology; Offshore Geotechnics; Petroleum Technology Symposium, 2013
The successful development of the major shale gas plays in North America hinges upon the creation of complicated fracture networks by pumping low viscosity fracturing fluid with low proppant concentrations at high flow rate. Direct laboratory measurement of hydraulic fracture conductivity created in the networks is needed for reliable well performance ...
Junjing Zhang, Anton Kamenov, Ding Zhu, A. Daniel Hill   +3 more
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The Hydraulic Conductivity of a Shaped Fracture With Permeable Walls

Mechanics Research Communications, 2020
We investigate the flow-wise variation of the hydraulic conductivity inside a non-uniformly shaped fracture within a porous medium. Using lubrication theory for viscous flows, in conjunction with the Beavers–Joseph–Saffman boundary condition at the permeable walls, we obtain an analytical expression for the velocity profile, conductivity, and wall ...
Daihui Lu, Federico Municchi, Ivan C Christov   +2 more
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Acid Fracturing: The Effect of Formation Strength on Fracture Conductivity

SPE Hydraulic Fracturing Technology Conference, 2009
Abstract A few studies considered the role of rock strength on fracture conductivity retained at elevated closure strengths. Based on experimental results and field data, many correlations were derived with a consideration of both the surface roughness and rock mechanical properties. These studies found that acid fracture conductivity is
A. M. Gomaa, H. A. Nasr-El-Din
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Experimental Study of Fracture Conductivity for Water-Fracturing and Conventional Fracturing Applications

SPE Journal, 2001
Summary Hydraulic fracturing treatments that use treated water and very low proppant concentrations (commonly referred to as water-fracturing treatments or "waterfracs") have been successful in stimulating low-permeability reservoirs. However, the mechanism by which these treatments provide sufficient conductivity is not well understood.
C. N. Fredd, S. B. McConnell, C. L. Boney, K. W. England   +3 more
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Evaluation of Fracture Asymmetry of Finite-Conductivity Fractured Wells

Journal of Energy Resources Technology, 2010
Nearly all commercial hydraulic fracture design models are based on the assumption that a single fracture is initiated and propagated identically and symmetrically about the wellbore, i.e., the fracture growth and proppant transport occurs symmetrically with respect to the well.
Djebbar Tiab, Jing Lu, Hung Nguyen, Jalal Owayed   +3 more
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Evaluation of Fracture Asymmetry of Finite-Conductivity Fractured Wells

SPE Production Engineering, 1992
SummaryThis paper presents a graphical technique to evaluate asymmetry of hydraulically fractured wells. This technique is based on a new analytical solution for the pressure behavior of a finite-conductivity, asymmetrically fractured well during the pseudolinear flow period and the known bilinear flow solution.
Fernando Rodríguez, Heber Cinco-Ley, Fernando Samaniego-V.   +2 more
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Hydraulic Conductivity of a Fractured Aquitard

2002
An investigation was conducted to characterize the hydraulic conductivity of a shallow clay till aquitard over which a municipal solid waste landfill was being sited. Hydraulic conductivity tests were conducted in the laboratory on specimens removed from the till in thin-wall sampling tubes (71 mm diameter) and as large hand-carved blocks (460 mm ...
T Abichou, CH Benson, M Friend, X Wang
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TRANSIENT FLOW TO FINITE CONDUCTIVITY VERTICAL FRACTURES

Proceedings of SPE Annual Fall Technical Conference and Exhibition, 1978
Abstract A finite element model was used to study the behavior of a well intersecting a finite conductivity vertical fracture at the center of a closed square reservoir. The two dimensional flow of single phase fluid was assumed to follow Darcy's law. The fracture and formation were represented by regions of uniform
Benjamin J. Barker, Henry J. Ramey
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Conductivity of Fibre Composites with Fractures on the Boundary of Inclusions

Multiscale Modeling & Simulation, 2013
A fibre composite consists of two materials bonded at an interface. There are fractures on the interfaces along which the phases are isolated. Maxwell's approach is applied to deduce a new analytical formula for the effective conductivity for such dilute composites with perfectly conducting inclusions.
Natalia Rylko, Beata Krzaczek, Vladimir Mityushev   +2 more
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