Apparatus for retrieving metal debris from a well bore
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United States of America Patent
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-
Dec 10, 2002
Issued Date -
N/A
app pub date -
Apr 5, 2001
filing date -
Oct 21, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tool for retrieving metal debris from a wellbore has a plurality of magnet assemblies spaced longitudinally along a tool body. Each magnet assembly has a magnet member, which forms a primary debris settling area. Each magnet member is protected by a magnet protector. A secondary debris settling area is formed between a magnet and an adjacent magnet protector to allow utilization of the residual magnetic force created by the magnet members. The secondary debris settling area occupies at least half of the surface area of the primary settling area.
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