Applications of degradable polymers in wells
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United States of America Patent
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Issued Date -
Nov 25, 2004
app pub date -
May 14, 2004
filing date -
May 15, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Degradable polylactic or polyhydroxyalkanoate polymers may be used to viscosify aqueous fluids for use in wells, Sand control screen or liner can be coated with a solid degradable polymer during placement in a well. Mechanical changes or flow changes in a well can be caused by solid degradable polymer that changes physical properties after it is placed in a well. Parts of devices or entire devices can be made of solid degradable polymer that converts to a fluid after selected times in an aqueous environment in a well.
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