Invention Grant
US09388645B2 Apparatus and method for reducing vibration in a borehole 有权
减少井眼振动的装置和方法

Apparatus and method for reducing vibration in a borehole
Abstract:
In one aspect, an apparatus for use in a borehole includes a tubular disposed in the borehole. The apparatus also includes an expandable device disposed outside the tubular and proximate a selected device, the expandable device including a material that causes the expandable device to expand from a first shape to a second shape when exposed to an activating fluid. In addition, the expandable device reduces vibration of the selected device when the expandable device is in the second shape.
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