CPC E21B 37/08 (2013.01) [E21B 43/38 (2013.01)] | 22 Claims |
15. A method for operating a downhole debris removal apparatus, comprising:
providing a debris removal sub downhole, the debris removal sub including:
an inner pipe positioned within a tubular;
filtration member substantially encircling the inner pipe; and
a cleaning assembly positioned radially about at least a portion of the filtration member, wherein the cleaning assembly is positioned at least partially within a debris collection chamber formed by the tubular;
circulating fluid through the debris removal sub; and
moving the cleaning assembly relative to the filtration member to dislodge particulate matter from the filtration member.
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