Isolating packer units in geological and geophysical...

Details Isolating packer units in geological and geophysical... Isolating packer units in geological and geophysical...

E - Fixed Constructions

21

B

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E21B 47/00 (2006.01) E21B 33/124 (2006.01) E21B 33/127 (2006.01) E21B 49/08 (2006.01)

Patent

CA 1114741

ISOLATING PACKER UNITS IN GEOLOGICAL AND GEOPHYSICAL MEASURING CASINGS ABSTRACT OF THE DISCLOSURE The isolating packer unit is made up of a cylin- drical measuring casing one end of which is connected by a cylindrical coupler tube to an end of a similar measuring casing, this coupler tube having a measuring port normally closed by a valve which is operable from within the tube to open the port. An elongate elastic packer tube is mounted on and concentric with each casing and is secured at its ends to the casing. When the packer unit is in a well or bore hole, the packer tubes are expanded or inflated by fluid directed thereinto to engage the wall of the well or bore hole to isolate the measuring port of the coupler tube from the portions of the well or bore hole above and below the packer unit.

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