Discrete element modeling of rock destruction under high...

E - Fixed Constructions – 21 – B

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E21B 10/567 (2006.01) E21B 41/00 (2006.01)

Patent

CA 2670181

Discrete Element Modeling (DEM) of rock subject to high confining pressures, such as in a subterranean drilling environment, may be used to predict performance of cutting structures used in drill bits and other drilling tools, as well as of the tools themselves. DEM may also be used to create "virtual" rock exhibiting specific drillability characteristics with or without specific reference to any actual rock, for purposes of assessing cutting efficiency of various cutting structure configurations and orientations, as well as of drilling tools incorporating same.

Une modélisation d'élément individuel (DEM) de roche soumise à des pressions de confinement élevées, comme dans un environnement de forage souterrain, peut être utilisée pour prévoir la performance de structures de coupe utilisées dans des forêts et autres outils de forage, ainsi que celle des outils eux-mêmes. La DEM peut également être utilisée pour créer une roche <= virtuelle >= présentant des caractéristiques de forabilité spécifiques avec ou sans référence spécifique à une quelconque roche réelle, afin d'évaluer l'efficacité de coupe de diverses configurations et orientations de structure de coupe, ainsi que celle d'outils de forage incorporant celles-ci.

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