Show simple item record

contributor authorV. E. Johnson
contributor authorG. J. Giacchino
contributor authorG. L. Chahine
contributor authorW. T. Lindenmuth
contributor authorA. F. Conn
contributor authorG. S. Frederick
date accessioned2017-05-08T23:17:36Z
date available2017-05-08T23:17:36Z
date copyrightJune, 1984
date issued1984
identifier issn0195-0738
identifier otherJERTD2-26398#282_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/98320
description abstractThe erosion and cleaning effect of jets is enhanced when the degree of cavitation on or near the bottom of the hole is increased. Analyses indicate that self-excited, acoustically resonating nozzles, causing jets to be structured with large discrete vortex rings, should promote cavitation to depths several times greater than for conventional jets. The new nozzle designs are shown to be suitable for existing mechanical drill bits and may even effect hole cleaning in the absence of cavitation.
publisherThe American Society of Mechanical Engineers (ASME)
titleCavitating and Structured Jets for Mechanical Bits to Increase Drilling Rate—Part I: Theory and Concepts
typeJournal Paper
journal volume106
journal issue2
journal titleJournal of Energy Resources Technology
identifier doi10.1115/1.3231053
journal fristpage282
journal lastpage288
identifier eissn1528-8994
keywordsDrilling
keywordsJets
keywordsCavitation
keywordsNozzles
keywordsVortices
keywordsErosion
keywordsAcoustics AND Bits (Tools)
treeJournal of Energy Resources Technology:;1984:;volume( 106 ):;issue: 002
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record