E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/64
E21B 33/128 (2006.01) E21B 33/127 (2006.01) E21B 33/134 (2006.01) G01V 1/104 (2006.01)
Patent
CA 1210688
THE ABSTRACT OF THE DISCLOSURE There is provided a new and useful bore hole plug comprising a central support member, an expandable sleeve secured about the central support, a first reactant chemical within the sleeve which is capable of reacting with a second reactant chemical or a catalyst to form a closed cell foam, and means by which the second reactant can be introduced to the sleeve.
462827
J.j. Seismic Flowing Hole Control (c.i.) Inc.
Ridout & Maybee Llp
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