Dissolvable frac plug
AssigneeGryphon Oilfield Solutions, LLC
InventorsGanesh Subbaraman, Tyler Roberts, Ian Beckett
Life of this patent
Estimating the term…
Abstract
A dissolvable frac plug is disclosed. The dissolvable frac plug has an internal chamber surrounded by an external wall with the chamber containing a dry powder component in an amount sufficient to combine with ground water or other wellbore fluids to form a solution or environment that enhances dissolution of the plug. The dry powder is released from the chamber as a portion or portions of the external wall dissolves due to contact with water or other wellbore fluids.
Claims19
A dissolvable frac plug comprising a mandrel having an axial flowbore running through a central axis of the dissolvable frac plug;
- a first wall structure forming a first chamber concentric to the mandrel, wherein the first wall structure comprises an external wall portion forming an external wall of the plug;
- wherein the first chamber contains a material in an amount sufficient to combine with at least one of a chemical compound, water, and a wellbore fluid to form a solution or environment that enhances dissolution of the plug, wherein the external wall portion includes an opening to allow filling or packing of the first chamber with the material and after filling or packing of the first chamber with the material, the opening is filled with a substance that minimally reacts with water and well bore fluids and blocks water and wellbore fluids, and wherein at least a portion of the external wall portion is configured to dissolve, prior to the material combining with the at least one of the chemical compound, the water, and the wellbore fluid, due to contact with at least one of water and a wellbore fluid present on a side of the external wall portion opposite the first chamber.
A method of enhancing dissolution of a dissolvable frac plug, which comprises:
- providing a dissolvable frac plug comprising a first wall structure forming a first chamber, wherein the first wall structure comprises an external wall portion forming an external wall of the plug,
- providing the first chamber with a material in an amount sufficient to combine with at least one of a chemical compound, water, and a wellbore fluid to form a solution or environment that enhances dissolution of the plug, wherein the external wall portion includes an opening to allow filling or packing of the first chamber with the material and after filling or packing of the first chamber with the material, the opening is filled with a substance that minimally reacts with water and well bore fluids and blocks water and wellbore fluids, and wherein at least a portion of the external wall portion is configured to dissolve, prior to the material combining with the at least one of the chemical compound, the water, and the well bore fluid, due to contact with at least one of water and a well bore fluid present on a side of the external wall portion opposite the first chamber;
- delivering the dissolvable frac plug into a wellbore wherein water or other wellbore fluids are present downstream of the plug.
A dissolvable frac plug comprising:
- a mandrel having an axial flowbore running through a central axis of the dissolvable frac plug;
- a first wall structure forming a first chamber concentric to the mandrel, wherein the first wall structure comprises an external wall portion forming an external wall of the plug, wherein the first chamber contains a material in an amount sufficient to combine with at least one of a chemical compound, water, and a wellbore fluid to form a solution or environment that enhances dissolution of the plug, and wherein at least a portion of the external wall portion is configured to dissolve, prior to the material combining with the at least one of the chemical compound, the water, and the wellbore fluid, due to contact with at least one of water and a wellbore fluid present on a side of the external wall portion opposite the first chamber, and
- a second wall structure forming a second chamber, wherein the second chamber comprises the chemical compound.
Dependencies are inferred from the claim text.