Fluid activated disintegrating metal system
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United States of America Patent
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Dec 11, 2018
Grant Date -
Aug 27, 2015
app pub date -
Feb 20, 2015
filing date -
Feb 21, 2014
priority date (Note) -
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Abstract
An engineered composite system designed to be passive or inert under one set of conditions, but becomes active when exposed to a second set of conditions. This system can include a dissolving or disintegrating core, and a surface coating that has higher strength or which only dissolves under certain temperature and pH conditions, or in selected fluids. These reactive materials are useful for oil and gas completions and well stimulation processes, enhanced oil and gas recovery operations, as well as in defensive and mining applications requiring high energy density and good mechanical properties, but which can be stored and used for long periods of time without degradation.
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