Downhole coring device
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United States of America Patent
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Mar 16, 2004
Issued Date -
N/A
app pub date -
Aug 28, 2002
filing date -
Nov 3, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a downhole rotary coring device placeable in a drill string and comprising a head section, a motor, and a core barrel having an outer motor comprising a rotor connected to the outer barrel and a stator to the head section, whereby the rotor and the stator are movable with respect to each other in the longitudinal direction of the drill string.
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