| CPC E21B 37/02 (2013.01) | 20 Claims |

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1. A system, comprising:
a plurality of debris collection tools attached in series, each comprising:
a swirl generator, comprising:
a first opening disposed on an exterior of the debris collection tool; and
a second opening disposed inside the debris collection tool,
wherein the first opening and the second opening are disposed at opposite axial ends of the swirl generator; and
a filter disposed more proximate to the second opening than the first opening.
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