FRAC PLUG MILL BIT
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United States of America Patent
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N/A
Issued Date -
Aug 20, 2015
app pub date -
Feb 20, 2014
filing date -
Aug 23, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A fixed cutter bit for milling a frac plug includes a body and a face. The face includes a base surface and a plurality of cutter support structures extending from the base surface. Each cutter support structure has a peripheral portion and an inner portion disposed radially internal of the peripheral portion. At least one first-type cutter is supported by each peripheral portion; at least one second-type cutter is supported by each inner portion. The first type cutter is adapted to mill a harder material than the second-type cutter, and the first-type is different from the second-type.
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