CPC E21B 33/13 (2013.01) [C04B 40/0092 (2013.01); C09K 8/426 (2013.01); C09K 8/516 (2013.01); E21B 23/00 (2013.01); E21B 33/1208 (2013.01); E21B 33/134 (2013.01); C09K 2208/08 (2013.01); E21B 43/26 (2013.01); E21B 2200/06 (2020.05)] | 14 Claims |
1. A plugging device for use in a subterranean well, the plugging device comprising:
at least one body configured to engage an opening in the well and block fluid flow through the opening; and
multiple fibers extending outwardly from the at least one body, the fibers comprising staple fibers or filaments formed into yarn, in which the plugging device is configured to be conveyed by fluid flow into engagement with the opening, and in which the at least one body is too large to pass through the opening.
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