E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/65
E21B 33/126 (2006.01) E21B 33/124 (2006.01) E21B 33/127 (2006.01)
Patent
CA 1176977
ABSTRACT An inflatable flowing hole plug system including two fluid inflatable hole plugs, having an upper and a lower plug, means for connecting these plugs and allowing fluid communica- tion between them, valve system for controlling the inflation of the plugs, and an external fluid supply means for inflating the plugs.
411878
Christensen Byron
Dunsmuir George H.
LandOfFree
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