Methods of sealing subterranean zones
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United States of America Patent
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-
Jan 2, 2001
Grant Date -
N/A
app pub date -
Feb 12, 1999
filing date -
Mar 14, 1997
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention provides improved methods of sealing a subterranean zone to remedy the uncontrolled flow of fluids into and out of the zone. The methods basically comprise preparing a sealing composition and placing the composition into the zone to be sealed. The placement of the composition is controlled in a manner whereby portions of the sealing composition are continuously converted to sealing masses which are successively diverted into permeable portions of the zone until all of the permeable portions are sealed.
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