IMPROVED DOWNHOLE SCRAPING AND/OR BRUSHING TOOL AND RELATED METHODS

An improved and enhanced spring loaded downhole tool (1) for cleaning well casing bores comprising a mandrel (10), at least a first insert having a passageway therethrough, and at least a second insert, wherein both the first insert and the second insert are selected from at least one of a spring lo...

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Bibliographische Detailangaben
Hauptverfasser:	KNOBLOCH, Benton T, ROY, Todd J
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	An improved and enhanced spring loaded downhole tool (1) for cleaning well casing bores comprising a mandrel (10), at least a first insert having a passageway therethrough, and at least a second insert, wherein both the first insert and the second insert are selected from at least one of a spring loaded scraper insert and at least one wire brush insert, and further wherein the first insert and the second insert are slidingly received within a slot on a first mounting portion on the mandrel and a slot on a second mounting portion on the mandrel, from the outermost respective ends, and wherein the first insert is secured by a first retaining sleeve (30) and the second insert is secured by a second retaining sleeve (30). Also disclosed is a unique method for cleaning a section of casing with a downhole tool, as herein disclosed.