Apparatus for locking wire line instrument to drill collar

Details Apparatus for locking wire line instrument to drill collar Apparatus for locking wire line instrument to drill collar

E - Fixed Constructions

21

B

E21B 23/00 (2006.01) E21B 23/02 (2006.01) E21B 47/01 (2006.01)

Patent

CA 2157838

An apparatus for supporting instrumentation in a drill collar in a well, such instrumentation being subject to travel in the well to and from the drill collar comprising instrumentation having upper and lower end portions and being elongated between the end portions; there being tongue and groove interfit elements to suspend the instrumentation at the drill collar; one of the elements carried by the drill collar, and the other of the elements carried by the upper portion of the instrumentation, whereby the elements interfit as the instrumentation is traveled downwardly in the drill collar with the instrumentation lower portion hanging freely below the level of the elements.

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