Spring mechanism for downhole steering tool blades
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United States of America Patent
Stats
-
Apr 17, 2007
Grant Date -
Aug 24, 2006
app pub date -
Feb 18, 2005
filing date -
Feb 18, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A steering tool for use in a well bore is disclosed. The tool includes at least one extendable and retractable blade deployed thereon. The blade is elastically spring biased radially inwards towards the tool such that upon removal of an actuating force, the blade retracts. In exemplary embodiments, the blade includes at least one spring-like, elastically deformable member disposed to elastically spring bias the blade. The spring-like member may include first and second elongated leg portions located on opposing sides of a sprung hairpin portion. Tools embodying this invention may be advantageous for small diameter applications.
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Cited Art Landscape
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