Zobrazeno 1 - 2
of 2
pro vyhledávání: '"Portwood Gary R"'
Autor:
Portwood Gary R, Bertini Alessandro, Robert Galler, Stephan Grafinger, Robert Wenighofer, Pallesi Simone, Thomas Stoxreiter
Publikováno v:
Open Geosciences, Vol 11, Iss 1, Pp 783-803 (2019)
Rock fracture due to high-pressure fluid jetting and insert indentation was experimentally investigated. In the frame of this article, indentation designates the process of pressing a tungsten carbide insert (TCI) for roller cone bits displacement-co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::240d1ca5de870b0af9216b44eab41655
https://doi.org/10.1515/geo-2019-0061
https://doi.org/10.1515/geo-2019-0061
Autor:
Johann Plank, Stefan Essl, Olivier Seibel, Herbert Hofstätter, Portwood Gary R, Laurent Gerbaud, Thomas Stoxreiter
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences
International Journal of Rock Mechanics and Mining Sciences, Pergamon and Elsevier, 2019, 115, pp.87-98. ⟨10.1016/j.ijrmms.2019.01.011⟩
International Journal of Rock Mechanics and Mining Sciences, Pergamon and Elsevier, 2019, 115, pp.87-98. ⟨10.1016/j.ijrmms.2019.01.011⟩
Full-scale drilling experiments (8½ in. bit size) with a high-pressure fluid jet assisted rotary drilling system were performed in hard to drill crystalline rock . Besides the development of novel drill bits and high-pressure components, an existing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae25c12496385ea43593cdbfc0588076
https://doi.org/10.1016/j.ijrmms.2019.01.011
https://doi.org/10.1016/j.ijrmms.2019.01.011