Passive centralizer

Details Passive centralizer Passive centralizer

E - Fixed Constructions

21

B

E21B 17/10 (2006.01) E21B 23/00 (2006.01)

Patent

CA 2623931

A passive centralizer for stably centering within a well. The centralizer may be of a retracted profile for advancement within the well and deployable for centralization upon reaching an operation site. Deployment may be achieved in an automated manner without the requirement of operator interaction therefor. Furthermore, the centralizer may be truly passive in that energy for deployment may be stored entirely within the passive centralizer prior to its insertion within the well. The passive centralizer may also be compressed following centralization by any number of downhole restrictions. In this manner the passive centralizer may also be readily withdrawn from the well.

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