Centralizer including measurement means

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Reexamination Certificate

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Details

C324S368000, C324S339000, C166S241100, C166S241700

Reexamination Certificate

active

07071697

ABSTRACT:
A centralizer (1) for position a casing (3) in a conduit (4) passing through underground formations includes measurement means (7) such as an electrode for deriving at least one representative parameter of the formations.

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