Measuring casing coupler apparatus

Details Measuring casing coupler apparatus Measuring casing coupler apparatus

E - Fixed Constructions

21

B

166/2

E21B 49/00 (2006.01) E21B 23/02 (2006.01) E21B 34/14 (2006.01) E21B 47/01 (2006.01) E21B 47/024 (2006.01) E21B 47/09 (2006.01) E21B 49/08 (2006.01)

Patent

CA 1112558

MEASURING CASING COUPLER APPARATUS ABSTRACT OF THE DISCLOSURE A coupler for association with casings through which can move instruments for taking measurements and samples for geological, geophysical and other purposes. The coupler is a tube having opposite ends registering with and connected to measuring casings. Sealing connecting means is provided between the tube ends and the adjacent casing ends. A measuring port in the tube wall is normally closed by a valve which is operable from within the tube to open the port. A stop arrangement in the tube is so positioned relative to the measuring port as to stop an instrument in the tube in correct operating position at the port for taking measurements or samples through the port. In a broader sense, the measuring port and valve can be omitted, in which case the stop arrangement stops the instrument at a desired position for measuring or other purposes.

339204

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