Energized fluid for generating self-cleaning filter cake
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United States of America Patent
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May 18, 2010
Issued Date -
N/A
app pub date -
Apr 18, 2007
filing date -
May 23, 2006
priority date (Note) -
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Abstract
A process for generating and subsequently breaking a filter cake, including dissolving a non-reactive gas in a wellbore fluid to form an energized fluid; pumping the energized fluid into a formation at a downhole pressure, wherein the pumping is at overbalanced conditions; producing a filter cake; and decreasing the down hole pressure to below a cut point of the dissolved gas in the energized fluid to form a vapor phase, wherein the vapor phase compromises the integrity of the filter cake is disclosed.
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