Multifunction downhole plug
AssigneeHalliburton Energy Services, Inc.
InventorsGary Joe Makowiecki, Todd Anthony Stair
Life of this patent
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Abstract
A downhole plug and method of activating multiple downhole tools in a subterranean formation are disclosed. The plug includes a detachable ring that enables the plug to land in and engage at least two different seats, each seat having a different profile. This in turn enables the plug to activate at least two separate downhole devices, one in an upper downhole tool and one in a lower downhole tool. The ring separates from the plug once a certain pressure is reached in the wellbore enabling the plug to travel downhole from the upper tool to the lower tool to activate the device in the lower downhole tool.
Claims20
A downhole plug, comprising:
- a main body having a first end and a second end;
- a nose coupled to the main body at the first end;
- a hub coupled to the main body proximate to the second end;
- and
- a detachable member coupled to the main body.
A method of activating multiple downhole tools in a subterranean formation, comprising:
- (a) deploying a plug having a main body, a hub coupled to the main body, and a detachable member into a wellbore;
- (b) engaging the detachable member with a seat formed in an upper downhole tool;
- (c) pumping fluid into the downhole tool to a pressure which causes the main body of the plug and the hub to separate from the detachable member;
- (d) deploying the plug to a lower downhole tool;
- and
- (e) engaging the hub with a seat formed in the lower downhole tool.
Dependencies are inferred from the claim text.