Results 11 to 20 of about 2,300 (225)
Modeling PDC cutter rock interaction [PDF]
Proceedings of IADC/SPE Drilling Conference, 2009 Optimizing the drilling performance in high pressure high temperature (HPHT) operations is crucial to successful, economic mineral extraction, and is one of the major goals behind the Department of Energy\u27s (DOE) Deep Trek program and the primary ...
Tulu, Ihsan Berk
core +5 more sources
Study on rock breaking law of ring groove PDC bit mixed PDC cutter and field test
Results in EngineeringIn order to solve the problems of low rock-breaking efficiency and poor bit stability of existing PDC bits in hard formation, a kind of annular PDC bit is proposed.
Kuilin Huang +4 more
doaj +2 more sources
Rock Breakage Mechanisms With a PDC Cutter [PDF]
Proceedings of SPE Annual Technical Conference and Exhibition, 1985 ABSTRACT Some aspects of chip generation by a polycrystalline diamond compact (PDC) cutter moving through a rock can be understood by examining the shapes of the chips and the fracture patterns in the remaining rock. Data from laboratory experiments have led to general conclusions about the uniformity of chip generation mechanisms in ...
D. H. Zeuch, J. T. Finger
openaire +1 more source
Известия Томского политехнического университета: Инжиниринг георесурсов, 2022 The relevance. Vibrations of a drill string of any origin, arising while drilling a well, lead to a decrease in the quality of the work performed. The known methods of combating this phenomenon are technically and technologically complicated. When drilling with a PDC-type rock cutting tool, one of the reasons for the occurrence of lateral vibrations of
Vyacheslav V. Neskoromnykh +3 more
openaire +1 more source
Optimization of Stone Cutting Techniques for the Seismic Protection of Archaeological Sites [PDF]
, 2011 Since the beginning of civilization, history tells of the movement of art pieces, monuments and manufacts from site to site. The causes are multiple: the displacements due to the "spoils of war", ordered by kings and emperors, the movements caused by the
Cennamo, C. +2 more
core +2 more sources
Experimental Study on Conglomerate Breaking Characteristics of Conical PDC Cutter
Shiyou jixie, 2021 In order to further improve the rock breaking efficiency and the adaptability of drilling hard and complex strata of PDC bit, a comprehensive test device of rock breaking by PDC cutter was developed. The test device was used to conduct experimental study
Xu Weiqiang +6 more
doaj
MAP as a conservation method for contemporary art with foodstuffs : three case studies [PDF]
, 2011 This article examines the use of Modified Atmosphere Packaging (MAP), a widely applied preservation method in the food packing industry, for preserving contemporary artworks with foodstuffs.
De Meulenaer, Bruno +3 more
core +3 more sources
HMS Hampshire 100:Survey Report [PDF]
, 2020 HMS HAMPSHIRE was a British 10,850-long tons pre-dreadnought Devonshire-class armoured cruiser launched on 24th September 1903, completed on 15th July 1905 and commissioned one month later.
Crofts, David +7 more
core +2 more sources
Effect of Back Rake Angle and Shape of PDC Cutter On Wear Rate In Hard Formation [PDF]
, 2015 This project aimed to investigate the effect of cutter back rake angle and shape of cutter on Polycrystalline Diamond Compact (PDC) cutter wear rate in hard formation application.
Yi, Kong Yien
core +2 more sources
Rock Breaking Mechanism and Experimental Study of Axe-shaped PDC Cutter
Shiyou jixie, 2022 Axe-shaped PDC cutter has more obvious rock breaking advantage than conventional PDC cutter. In order to analyze the rock breaking mechanism of the axe-shaped PDC cutter, the finite element simulation and test were used to conduct comparison and force ...
Zou Deyong +3 more
doaj