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1.2.3 Rock properties

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Proceedings Papers

Paper presented at the 4th ISRM Congress, September 2–8, 1979
Paper Number: ISRM-4CONGRESS-1979-043
... SUMMARY: The importance of frictional properties of rock is described. The methods of determining friction in rocks are reviewed. The details of the experimental setup based on triaxial testing for determining friction are given. A number of Sicilian barble specimens were tested under various...
Proceedings Papers

Paper presented at the Petroleum Computer Conference, June 17–20, 1991
Paper Number: SPE-22296-MS
... in the references (Ref.1.2.3). Fig. 1 the general flow chart used to develop the specific algorithms and the related programs. Reservoir pressure decline depends on several factors. the most important being the physical properties of rocks and fluids, flow regime, oil properties of rocks and fluids, flow regime...
Proceedings Papers

Paper presented at the 5th ISRM Congress, April 10–15, 1983
Paper Number: ISRM-5CONGRESS-1983-041
... SYNOPSIS: Fractures resulting from the breaking of rock under different stress conditions can be divided into 10 patterns of tensile fractures and 8 patterns of shear fractures. Photographs of fractures are taken by transmission and scanning electron microscopes. Thus, by the pattern...
Book Chapter
Publisher: Society of Petroleum Engineers
Published: 01 January 2019
DOI: 10.2118/9781613996935-01
EISBN: 978-1-61399-896-0
... of rock properties and nonlinear behavior of the fluid properties. Accordingly, in an analytical formulation it is necessary to remove some of these complexities, and to do so, we must incorporate some sweeping assumptions. As we do, we begin to deviate from the exact representation of a problem and end...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-731
... for potential failures at bench scale, where the rock mass rating was found to be higher than 35-40. Stability analysis using limit equilibrium methods (based on rock mass strength) conducted to search for potential failures at overall pit slope scale. The analyses were based on geotechnical properties and data...
Proceedings Papers

Paper presented at the ISRM International Workshop on Rock Mechanics and Geoengineering in Volcanic Environments, May 31–June 1, 2010
Paper Number: ISRM-IWVE-2010-006
.... This characterisation is made by considering both geological criteria as well as mechanical properties (quantified by in-situ and laboratorial tests). Volcanic environments, due to their origin, have a great heterogeneity of rocks and soils, characterised by different mechanical proper- ties which usually present...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 93, June 21–24, 1993
Paper Number: ISRM-EUROCK-1993-022
... ABSTRACT: Joint lineal density is one of the most important joint characteristic elements which describes rock mass properties such as deformability, permeability and so on. This paper suggests joint lineal density diagram in order to describes the joint lineal density measured in the arbitary...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 93, June 21–24, 1993
Paper Number: ISRM-EUROCK-1993-009
... ABSTRACT: Joints orientation and properties are between the major factors at the origin of the anisotropic behavior of rock masses. This paper stresses the role of joint orientation, with respect to the loading direction, in determining the deformational behaviour of a rock mass by means...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 19–22, 2014
Paper Number: IPTC-17702-MS
... permeability and total porosity that determine the Reservoir Rock Types (RRT s) and / or Petrophysical Groups (PG s) (Beachle, Weger, Eberli, & Massaferro, 2004). The impact of microporosity on acoustic elastic properties of both shear-wave velocity (Vs) and compressional-wave or pull-push velocity (Vp) has...
Proceedings Papers

Paper presented at the International Arctic Technology Conference, May 29–31, 1991
Paper Number: SPE-22158-MS
... valley bottom 1,.5 COMPOSITION AND PROPERTIES OF ROCK Technogenic landscapes feature sharply dissected relief formed as a result of confused combination of denudation and accumulative forms. Depending on geolo- gical conditions of the deposits and the technologies used the depth of quarries and dredge...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 93, June 21–24, 1993
Paper Number: ISRM-EUROCK-1993-124
... and in the use of pre-stress in concrete linings, the use of steel lining is usually restricted to zones where the rock mass properties. flow in porous media displacement pressure tunnel hydromechanical behaviour quasi-plane analysis hydromechanical analysis contact stress lining numerical model...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-093
... (Butt et al. 2000). Far North Queensland in Australia is host to sapro- lites and highly weathered rocks from the bauxite deposits near Weipa to road cuttings and residential properties located on the hillsides in the greater Cairns region (i.e. Cairns, Babinda, the Atherton tablelands and the Daintree...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-081
... decade and finally back to North America in the 2000s. 1.2.3 Applications The raise bore method is used for excavating most types of vertical development for any purpose in the mining industry usually ventilation raises, rock passes, and secondary egresses. It has also been used for production shafts...
Proceedings Papers

Paper presented at the SPE International Thermal Operations Symposium, February 7–8, 1991
Paper Number: SPE-21542-MS
.... The equation presented in Ref. 6 requires knowledge of the thermal conductivity of the solid constituent. Since this property is constant when dealing with the same type of rock, it can be incorporated into the coefficients of the correlation equation as follows: where m,n,p,q are constant exponents...
Proceedings Papers

Paper presented at the SPE Latin America Petroleum Engineering Conference, March 8–11, 1992
Paper Number: SPE-23744-MS
... requires that (4) where the subscripts 1 and 2 are used to refer to the reservoir and cap rock, respectively. A similar expression would apply at the boundary with the base rock (z '" -h) which is denoted by the subscript 3 to allow for the possibility of it having different properties than the cap rock...
Proceedings Papers

Paper presented at the ISRM International Symposium, May 26–28, 1982
Paper Number: ISRM-IS-1982-114
...-dimensional idealiza- tion is sufficient. In other cases a 3-D model is more satisfying, see fig.6: the additional freedom for the choice of the horizontal extragravitational stress is counterbalanced by the additional experi- mental stress components to be fitted with. 3.2 Rock mass mechanical properties...
Journal Articles
J Pet Technol 44 (04): 402–486.
Paper Number: SPE-20605-PA
Published: 01 April 1992
...Elvind Damsleth; Charlotte B. Tjolsen; Henning Omre; Helge H. Haldorsen Summary We present a two-stage stochastic model that caters to the large-scalegeological heterogeneities resulting from different rock types and the inherentspatial variability of rock properties. The suggested approach...
Proceedings Papers

Paper presented at the 7th ISRM Congress, September 16–20, 1991
Paper Number: ISRM-7CONGRESS-1991-308
.... in rock type (mech.nical properti ) or n r geological we.kne nd fr.cture plane.. F.ult. very often .ct bound.ri of dom.in. within which the .tr fi.ld c.n be con.id.r.d homog.n.ou.. Aero domain bound.ri l.rg. variation. m.y occur .nd mea.urem.nt. in fault zone ar. of little v.lu. if on. i...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-098
... are controlled by rock mass material properties; the stress-strain-flow-yield behaviour of the formations around the wellbore strongly affect well stability and control responses to changes in extrinsic conditions (stress, pressure, temperature, geometry). For economic reasons, because of scale effects...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-241
... Abstract Clay shales are currently being assessed as possible host rock formations for the deep geological disposal of radioactive waste. However, one main concern is that the favourable long-term isolation properties of the intact rock mass could be negatively affected by the formation...

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