Core orientation device

Details Core orientation device Core orientation device

E - Fixed Constructions

21

B

E21B 25/16 (2006.01) E21B 25/00 (2006.01) E21B 47/02 (2006.01) E21B 47/024 (2006.01)

Patent

CA 2689825

A core orientation device for indicating the orientation of a core drilled in a bore angled with respect to the vertical and received in a core receiving tube. The core orientation device includes: a body defining a body proximal portion, a substantially opposed body distal portion and a body longitudinal axis extending therebetween, the body distal portion including a tube attachment for attaching the core receiving tube thereto; a pair of channel delimiting elements the channel delimiting elements being mounted to the body between the body proximal and distal portions, the channel delimiting elements extending in a substantially parallel and spaced apart relationship relatively to each other, the channel delimiting elements defining a substantially circumferential and substantially annular channel therebetween; an indicator provided in the channel between the channel delimiting elements. The channel delimiting elements are movable between a locking position and an unlocking position, wherein in the locking position, the channel delimiting elements are closer to each other than in the unlocking position and engage the indicator to substantially prevent movements of the indicator in the channel, and, in the unlocking position, the channel delimiting elements are sufficiently spaced apart from each other to allow circumferential movements of the indicator along the channel. The channel delimiting elements are biased toward the locking position and operatively coupled to the body so that the channel delimiting elements are moved to the unlocking position when the body proximal and distal portions are biased toward each other.

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