... orthotropic elasticity. The equations are developed based on simple laboratory testing configurations. The development of the three-dimensional equations of orthotropy is given in this paper. The method is validated with a numerical example and applied to a data set of test results performed on SURF rock...

... Abstract Sand production is a complex phenomenon in oil wells where sand grains or chunks are detached from the formation during loading processes and transported to the wellbore by the flowing fluids, either oil, water or gas. This article presents a complete set of different laboratory tests...

... specifically with salt pillow structures in Walker Ridge ( Meyer , 2007; Oletu , 2013 ). fracturing fluid closure stress hydraulic fracturing drawdown rq sample laboratory testing proppant formation proppant proceedings conductivity fracture permeability fracturing materials average...

... shear testing triaxial test laboratory testing shear stress 2017. American Rock Mechanics Association ...

... associated with estimation of strength using these schemes are high and strength estimates need to be treated with caution. Undertaking point load index testing in the field is a useful tool that can provide data to augment field strength estimates and laboratory test data. Field point load index test data...

... be a disk and the pistons modified such that only a line contact is achieved with the specimen. This geometry is commonly advocated for the standard indirect tensile ARMA 14-7077 Laboratory testing of shale rock specimens to assess thermal fracturing risk in caprock surrounding injection wells Cerasi, P...

... Abstract: The suitability of hybrid 2D-FEM/DEM methods for simulating brittle failure laboratory testing has been described by numerous researchers emphasizing their ability to illustrate clearly the transition from an intact rock continuum to a discontinuum fractured state. However...

... ABSTRACT The proposed research and development program to advance disposal concepts for heat-generating waste in salt comprises four general initiatives: Laboratory Testing, Modeling and Simulations, Workshops and International Collaborations, and Field Testing. In a chronologic sense, some...

... a mixture of clay and rock fragments of various sizes is collected, and it is therefore very difficult to obtain usable undisturbed samples of gouge material from a weakness zone for laboratory testing. In Norway, a laboratory test method based on measuring the swelling pressure of remoulded specimens has...

... by the rise rate of the backfill in the stope. The time-dependent behavior of the fill is implemented as each layer can be aged and assigned the age appropriate material properties. These properties were obtained by a laboratory testing program summarized in the paper. The paper presents a brief validation...

... will be. The role of numerical modeling in geotechnical applications is not a stand-alone tool. It cannot be used without referring to measurements from laboratory testing and field observations. Similarly a sound knowledge of geology and material properties is required. In this paper, the finite difference code...

... to quantify the effect of macropore spacing on unconfined compressive strength and qualify the effect of macropore spacing on failure mode using laboratory testing and two dimensional (2D) numerical models. 2. LABORATORY SPECIMENS & TESTING Approximately 80 unconfined compression tests were conducted on 101.6...

... of macroscopic voids within rocks because of the lithophysal tuff present at the then proposed high level nuclear waste repository at Yucca Mountain, Nevada. ARMA 08-318 Strength and Failure Modes of Macroporous Rock: Results from Laboratory Testing and 3D Numerical Models Jespersen, C.D., Spence, R.J...

... the laboratory tests in lieu of the field tests. Similarly, numerical simulation may act as a virtual test to imitate the laboratory test for achieving improved flexibilities at further reduced cost. In this paper, the result of numerical simulation of the hydraulic fracturing using 3-D model is presented...

... geometries. Further shear strength estimation studies using conventional back-analysis and laboratory testing are also carried out and these show that the results obtained from the three approaches are all in good agreement. I INTRODUCTION A realistic determination of shear strength of discontinuities...

... of several composite bolts. Weldgrip bolts showed significant potential with respect to support capacity and cost, hence, a detailed analysis was carried out on it. Upstream Oil & Gas rockbolt fiber tendon metals & mining shear laboratory testing application resin Weldgrip bolt...

... plants, bridges and dams to tunnels and underground caverns. The use of rock mechanics has varied from performing a few laboratory unconfined compressire tests on core samples to complete field and laboratory tests for underground power caverns. The primary difference between the rock mechanics studies...