US 12,006,795 B2
Debris removal apparatus with self cleaning filter assembly, well system, and method of use
Peter Reid Maher, Lafayette, LA (US); Nicholas Albert Kuo, Carrollton, TX (US); and Austin Lee Wright, Carrollton, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Nov. 10, 2020, as Appl. No. 17/093,878.
Prior Publication US 2022/0145728 A1, May 12, 2022
Int. Cl. E21B 37/08 (2006.01); E21B 43/38 (2006.01)
CPC E21B 37/08 (2013.01) [E21B 43/38 (2013.01)] 22 Claims
OG exemplary drawing
 
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.