Method and apparatus for logging short radius horizontal...

Details Method and apparatus for logging short radius horizontal... Method and apparatus for logging short radius horizontal...

E - Fixed Constructions

21

B

166/3

E21B 47/06 (2006.01) E21B 23/14 (2006.01) E21B 47/01 (2006.01)

Patent

CA 2024081

Abstract of the Disclosure A method and apparatus for logging short radius horizontal drainholes. An end sub in a tubing string contains a bend which angles the downstream end of the sub with respect to the upstream end. A perforated sub is connected to the upstream end of the end sub and contains sensor means communicating with the exterior through the perforations. When the angled end sub is aligned with the horizontal drainhole, downward movement of the tubing string causes the string to move through the drainhole, thereby allowing the sensor to determine the conditions therein.

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