Swelling layer inflatable

Details Swelling layer inflatable Swelling layer inflatable

2007-12-13

2009-10-06

Bomar, Shane (Department: 3676)

Wells

Processes

Placing or shifting well part

C166S187000, C166S179000, C277S333000, C277S934000

Reexamination Certificate

active

07597152

ABSTRACT:
An inflatable features a swelling layer. The swelling layer can be made integral or attached to the element or it can be bonded or otherwise secured to the mandrel. Upon inflation with fluid, the element expands into sealing contact with a surrounding tubular or wellbore. The fluid is absorbed or otherwise interacts with the swelling layer so that, in a preferred embodiment, the total occupied volume of the swelling layer and fluid individually is retained after mixing with the swelling of the layer acting to hold the seal of the inflatable element even if a problem develops in the sealing element.

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