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Keywords: single fracture
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Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1079
... be determined as, 2 1 [ ( )] 1 ( ) , ( 1.2 0.2), bn i perf ai i i b i perf z h z h F hh a b (9) (a) (b) Figure 4. (a) 3D view of the single fracture; (b) the side view of the same fracture with properties labeled. where zi is the height at the center of layer i, measured from fracture...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-279
... geometry. To better model fracture interaction, an efficient and accuracy method is required. mechanical interaction fracture interaction propagation upstream oil & gas single fracture aperture height direction exterior fracture dimension hydraulic fracturing multiple fracture...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-485
... occurs due to chemical and mechanical compaction. The chemical and mechanical compaction may include a pressure solution and a reduction in permeability could be explained by this pressure solution [1]-[5]. Yasuhara, et al. [6] conducted flow-through experiments on a single fracture in granite under...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7494
...-wave modes exist that propagate along fracture intersections. Ultrasonic waves propagated along the intersection between two orthogonal, synthetic fractures in aluminum were compared with waves that were propagated through the bulk and along single fractures as a function of stress. Intersections give...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-676
... 2D numerical simulation method for water flows in discrete fracture networks is proposed. Firstly, hydraulic analysis of a single fracture is carried out. Each fracture in a discrete fracture network is treated as a weighted branch with a start node and an end node in a directed network. Node...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-565
... ABSTRACT: Laboratory experiments were performed to determine the spatial variability of seismic fracture specific stiffness and the dominant flow path within a single fracture subjected to normal stress. Two cylindrical granite specimens were used in the study: an intact sample and a fractured...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-294
... waste or storage repositories. While the effects of single fractures or sets of parallel fractures on seismic wave propagation have been studied by many scientists and engineers, little research has been performed to determine the role of fracture intersections on seismic wave attenuation and velocity...
Proceedings Papers

Paper presented at the 43rd U.S. Rock Mechanics Symposium & 4th U.S. - Canada Rock Mechanics Symposium, June 28–July 1, 2009
Paper Number: ARMA-09-144
... Upstream Oil & Gas Tier hydraulic fracturing displacement Reservoir Characterization aperture single fracture geometry fluid flow fracture correlation length void geometry length scale stiffness fracture characterization Simulation threshold asperity contact area...
Proceedings Papers

Paper presented at the DC Rocks 2001, The 38th U.S. Symposium on Rock Mechanics (USRMS), July 7–10, 2001
Paper Number: ARMA-01-0655
... through a single fracture depends on the spatial distribution of the aperture including their connectivity, the contact area distribution of the fracture and fluid properties. The aperture and the contact area distributions of a fracture depend on the stress system acting on the joint. This research deals...
Proceedings Papers

Paper presented at the The 35th U.S. Symposium on Rock Mechanics (USRMS), June 5–7, 1995
Paper Number: ARMA-95-0901
... laminar diagram Upstream Oil & Gas roughness borehole water pressure test hydraulic fracturing Granite Fracture Rock mechanics borehole wall water loss fracture characterization laboratory test single fracture single rock fracture fracture gradient mechanics permeability Rock...
Proceedings Papers

Paper presented at the The 33rd U.S. Symposium on Rock Mechanics (USRMS), June 3–5, 1992
Paper Number: ARMA-92-0571
... and various patial correlations. They found that relative permeabilities are sensitive to the nature and range of spatial correlation of the apertures. Pyrak-Nolte t al. (1990) examined unsaturated flow in single fractures for the case of a non-wetting phase invading awetting phase fluid (such as mercury...
Proceedings Papers

Paper presented at the The 32nd U.S. Symposium on Rock Mechanics (USRMS), July 10–12, 1991
Paper Number: ARMA-91-1135
... tracer test analysis Discharge simultaneous inversion complex reservoir fracture aperture electrical conductivity hydraulic fracturing chemical tracer Upstream Oil & Gas aperture single fracture hydraulic head iteration application Inversion Procedure procedure electrical...
Proceedings Papers

Paper presented at the The 31st U.S. Symposium on Rock Mechanics (USRMS), June 18–20, 1990
Paper Number: ARMA-90-0269
... is the hydromechanical behavior of a single fracture. The mechanical and transport properties of fractures in rock depend on the topography of the contacting surfaces and the degree of mismatch between them. Understanding this behavior in the earth requires knowledge of how fracture topography and aperture scales...
Proceedings Papers

Paper presented at the The 28th U.S. Symposium on Rock Mechanics (USRMS), June 29–July 1, 1987
Paper Number: ARMA-87-0421
... ABSTRACT ABSTRACT Current research on fracture hydrology at Lawrence Berkeley Laboratory is focused on two scales: the single fracture and fracture networks. In the area of single fractures, we have established a research program aimed at characterizing the geometry of the void spaces...
Proceedings Papers

Paper presented at the The 28th U.S. Symposium on Rock Mechanics (USRMS), June 29–July 1, 1987
Paper Number: ARMA-87-0673
... ABSTRACT ABSTRACT: An analytical model that assumes variable height asperities and full interaction between them has been developed and implemented numerically to study the behavior of a single fracture under stress. The model has been used to calculate specific stiffness and aperture profiles...

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