Patent · US Expired

Downhole tool

US4610309A · kind A · utility

14Cited by

17References

18Claims

0Family size

Assignee

Phillips Petroleum Company · US

Inventors

John T. O'Brien · New York, US
Donald D. Goff · Bartlesville, US
Gary M. Hoover · Bartlesville, US

Key dates

Filing date	Nov 30, 1984
Grant date	Sep 9, 1986
Priority date	—
Expiry date	Nov 30, 2004

Classification

Technology area (CPC G)Physics
CPC primaryG01V11/005
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

For a downhole seismic tool, a securing mechanism which uses an arm which swings from the side of tool and into contact with the earth, causing the tool also to come to rest against the opposite side of the borehole on at least one pair of lugs protruding from the opposite side of the tool.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.