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US 7,621,322 B2Granted
Thru-tubing high expansion inflatable seal with mechanical anchoring system and method
AssigneeBaker Hughes Incorporated
InventorsGeorge S. Arnold, Gordon R. Mackenzie, Graeme Michael Kelbie
Life of this patent
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Abstract
A downhole tool includes a thru-tubing high expansion, elastomeric inflatable seal and a thru-tubing mechanical anchoring arrangement. A method for separating pressure in a wellbore including actuating a mechanical anchoring system of a thru-tubing downhole tool; inflating a high expansion inflatable elastomeric seal against the tubing subsequent to actuating said mechanical anchor.
Claims10
A downhole tool comprising:
- a thru-tubing high expansion, elastomeric inflatable seal settable at a seal set pressure;
- a thru-tubing mechanical anchoring arrangement operably connected to the seal being settable at an anchor set pressure, the seal set pressure being greater than the anchor set pressure;
- and
- a valve in operable communication with the elastomeric inflatable seal and the thru-tubing mechanical anchoring arrangement being openable at a pressure between the anchor set pressure and the seal set pressure.
1 more element
A method for separating pressure in a wellbore comprising:
- actuating with a first pressure a mechanical anchoring system of a thru-tubing downhole tool embodying said anchoring system and a high expansion inflatable elastomeric seal;
- opening a valve in response to achieving a threshold pressure that is greater than the first pressure wherein the threshold pressure is less than a second pressure;
- and
- inflating the high expansion inflatable elastomeric seal against the tubing with the second pressure that is greater than the first pressure subsequent to actuating and securing said mechanical anchor.
1 more element
Dependencies are inferred from the claim text.