US Patent 10563476 Frac plug with integrated flapper valve

A frac plug is provided. The frac plug may include a plug body, a slip, a sealing element, and a flapper. The plug body may have an inner surface, a first end portion, and a second end portion. The inner surface may define a bore extending axially between the first end portion and the second end portion. The slip may be circumferentially disposed about the plug body and configured to expand and couple the frac plug to a tubular section. The sealing element may be circumferentially disposed about the plug body and configured to compress and create a seal between the plug body and an inner surface of the tubular section. The flapper may be coupled to the plug body proximate to the first end portion and configured to seal the bore of the plug body.