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Downhole material injector for lost circulation control
This invention is comprised of an apparatus and method for simultaneously and separately emplacing two streams of different materials through a drillstring in a borehole to a downhole location for lost circulation control. The two streams are mixed outside the drillstring at the desired downhole location and harden only after mixing for control of a lost circulation zone.
Date:
January 1, 1991
Creator:
Glowka, David A.
System:
The UNT Digital Library