SWELLABLE BALL SEALERS

摘要

Swellable ball sealers comprising swellable material are described. A swellable ball sealer may be used as a diversion agent by being suspended in a fluid injected into a wellbore and swelling once seated on a perforation such that the swellable ball sealer adapts to the shape of a perforation opening on which the swellable ball sealer has seated.

主权项

1. A ball sealer for plugging perforations in a wellbore, the ball sealer comprising:
a swellable material configured to expand and produce a seal between an outer surface of a ball sealer and a surface of the perforation; and wherein the swellable material conforms to a geometry of the perforation during swelling to produce the seal.