Frac Plug
AssigneeCompletion Tool Developments, Inc.
InventorGregg W. Stout
Life of this patent
Estimating the term…
Abstract
A plug apparatus, also called the frac cup, includes an interior body with conical surface, a top wedge, a slip, and seal system that limits fluid movement around the interior body while fracking The seal system can be of the cup type, expandable pad type, labyrinth seal type, or other device that limits fluid flow. A method, where a plug is conveyed into the well on electric line and a Baker type power charge setting tool, where pump fluid acts on a cup thereby propelling the plug to a preselected position in a horizontal wellbore. The plug provides a barrier to applied frac slurries in order to force the frac slurries into a formation. After the frac, the plug allows flow past an internal ball seat from the bottom side or the plug can be milled out using coiled tubing methods.
Claims16
A well plug comprising:
- a mandrel having an exterior surface,
- a cup positioned on the exterior surface of the mandrel,
- an expandable seal positioned on an exterior surface of the mandrel,
- a plurality of anchoring elements surrounding the mandrel;
- and
- means for moving the plurality of anchoring elements radially outwardly to engage an inner surface of a tubular within the well.
A method of treating a well having a casing comprising:
- providing a completion tool including a perforating gun, a setting tool and a frac plug, the frac plug including a cup member adapted to slideably engage an interior surface of a well casing;
- pumping the completion tool into the well to a predetermined location;
- setting the frac plug within the well at the predetermined location;
- and
- perforating the well casing using the perforating gun portion of the completion tool.
Dependencies are inferred from the claim text.