DOWNHOLE MILLING TOOL

A tool (22) for cutting or milling casing in a well is disclosed. It includes a plurality of blades (36) extending outwardly to a substantially radial position for cutting the walls of casing strings and removing a predetermined length of the casing strings in a cutting action. The blades have cutti...

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Hauptverfasser:	LYNDE, GERALD D, HARVEY, HAROLD H. HARVEY JR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BORING COMBINED OPERATIONS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS OTHER WORKING OF METAL PERFORMING OPERATIONS TRANSPORTING TURNING UNIVERSAL MACHINE TOOLS
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creator	LYNDE, GERALD D HARVEY, HAROLD H. HARVEY JR
description	A tool (22) for cutting or milling casing in a well is disclosed. It includes a plurality of blades (36) extending outwardly to a substantially radial position for cutting the walls of casing strings and removing a predetermined length of the casing strings in a cutting action. The blades have cutting elements (66) positioned on leading faces (68) of the blades to engage the casing strings in a cutting action without tripping or removal from the bore hole. The cutting element (66) has surface irregularities (78) to cause the metal chips cut from the casings to break off at short lengths. The cutting element (66) can also have stress relieving grooves (80) to prevent the propagation of a crack across the face of the element.
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It includes a plurality of blades (36) extending outwardly to a substantially radial position for cutting the walls of casing strings and removing a predetermined length of the casing strings in a cutting action. The blades have cutting elements (66) positioned on leading faces (68) of the blades to engage the casing strings in a cutting action without tripping or removal from the bore hole. The cutting element (66) has surface irregularities (78) to cause the metal chips cut from the casings to break off at short lengths. The cutting element (66) can also have stress relieving grooves (80) to prevent the propagation of a crack across the face of the element.</description><edition>6</edition><language>eng ; fre</language><subject>BORING ; COMBINED OPERATIONS ; EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; FIXED CONSTRUCTIONS ; MACHINE TOOLS ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; MINING ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ; OTHER WORKING OF METAL ; PERFORMING OPERATIONS ; TRANSPORTING ; TURNING ; UNIVERSAL MACHINE TOOLS</subject><creationdate>1995</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19950202&DB=EPODOC&CC=CA&NR=2167947A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19950202&DB=EPODOC&CC=CA&NR=2167947A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LYNDE, GERALD D</creatorcontrib><creatorcontrib>HARVEY, HAROLD H. HARVEY JR</creatorcontrib><title>DOWNHOLE MILLING TOOL</title><description>A tool (22) for cutting or milling casing in a well is disclosed. It includes a plurality of blades (36) extending outwardly to a substantially radial position for cutting the walls of casing strings and removing a predetermined length of the casing strings in a cutting action. The blades have cutting elements (66) positioned on leading faces (68) of the blades to engage the casing strings in a cutting action without tripping or removal from the bore hole. The cutting element (66) has surface irregularities (78) to cause the metal chips cut from the casings to break off at short lengths. 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The cutting element (66) can also have stress relieving grooves (80) to prevent the propagation of a crack across the face of the element.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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language	eng ; fre
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subjects	BORING COMBINED OPERATIONS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS OTHER WORKING OF METAL PERFORMING OPERATIONS TRANSPORTING TURNING UNIVERSAL MACHINE TOOLS
title	DOWNHOLE MILLING TOOL
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