Method and device for sealing boreholes

Details Method and device for sealing boreholes Method and device for sealing boreholes

E - Fixed Constructions

21

B

E21B 33/12 (2006.01) E21B 33/134 (2006.01)

Patent

CA 2413136

A device and method for sealing boreholes. Typically, a seismic test hole is sealed by covering a topping plug with water expansible material, such as bentonite, which seals the hole once it expands on exposure to water or moisture. The present invention provides a method and a device for sealing seismic holes, the device comprising a generally tubular water permeable sleeve filled with water expansible aggregate.

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