[en] Since the early nineties a lot of researches have been realized in rock cutting with PDC cutters. In 1992 Detournay and Defourny developed a phenomenological model (DD model) based on the suggestion proposed by Fairhurst and Lacabanne (1957): ''The cutter / rock interaction is characterized by two processes: rock cutting and frictional contact''. Based on the DD model, a testing device has been developed at the University of Minnesota, Minneapolis: the Rock Strength Device (RSD). The RSD is designed to scratch rock samples with a constant depth of cut using a single cutter. It has been developed not only to measure strength parameters of rock specimens, but also to understand the mechanisms involved in rock cutting. Several research aspects have been studied on the RSD to valid the DD model. Lasserre (1994), Adachi (1996), Nicodème (1997), Richard (1998), Lhomme (1999) have studied different particular topics such as the correlation between specific energy and rock properties, failure mode in rock cutting, friction phenomena. Richard (1999) suggested the existence of a 3D effect influencing the specific energy. No real research approach has been conducted to understand the so-called 3D effect. This was the objective of this research.
Adachi J. 1996. Factional contact in rock cutting with blunt tools. M Sc thesis, University of Minnesota, Minneapolis.
Adachi J., Detoumay E. and Drescher A. 1996. Determination of rock strength parameters from cutting tests. In M. Aubertin, F. Hassani and H. Mitri (eds), Rock Mechanics Tools and Techniques, 2: 1517-1523.
Almenara J. R. and Detournay E. 1992. Cutting experiments in sandstones with blunt PDC cutters. Proc. EuRock'92, pp. 215-220, Thomas Telford, London.
Challamel N. and Scilami H. 1998. Application of yield design for understanding rock cutting mechanism. SPE-ISRM 47340, Proc EuRock 98, 2: 153-159.
Chaput E. J. 1991. Observations and analysis of hard rocks cutting failure mechanisms using PDC cutters. Imperial College of Science, Technology and Medicine, London, technical report, Elf-Aquitaine.
Dagrain F., 2001. Influence of cutter geometry in rock cutting. M Sc thesis, University of Minnesota.
Detournay E. and Defourny P. 1992. A phenomenological model for drilling action of drag bits. Int. J. Rock Mech. Min. Sci. & Geomech. Abstr., 29(1): 13-23.
Fairhurst C. and Lacabanne W. D. 1957. Hard rock drilling techniques, Min. Quarry Eng., 1: 157-161.
Lasserre C. 1994. Rock friction apparatus: réalisation de tests de coupe sur roches à l'aide d'un outil PDC. Technical report, Elf-Aquitaine.
Lhomme T. 1999. Frictional contact at rock-tool interface, an experimental study. M Sc thesis, University of Minnesota, Minneapolis.
Richard T., Detournay E., Drescher A., Nicodème P. and Fourmaintraux D. 1998. The scratch test as a means to measure strength of sedimentary rocks. SPE-ISRM 47196, Proc EuRock 98, 2: 15-22.
Richard T., 1999. Determination of rock strength from cutting tests. M Sc thesis, University of Minnesota, Minneapolis.
Samiselo W. W.,1992. Rock-tool friction as a cuttability predictor. M Sc thesis, Imperial College of Science, Technology and Medicine, London.
Schei G., Fjasr E., Detournay E., Kenter C. J., Fuh G. F. and Zausa F. 2000. The scratch test: an attractive technique for determining strength and elastic properties of sedimentary rocks. SPE 63255.