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Deployable centralizers

United States Patent

February 28, 2017
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
Deployable Centralizers for Directional Drilling
A centralizer assembly is disclosed that allows for the assembly to be deployed in-situ. The centralizer assembly includes flexible members that can be extended into the well bore in situ by the initiation of a gas generating device. The centralizer assembly can support a large load carrying capability compared to a traditional bow spring with little or no installation drag. Additionally, larger displacements can be produced to centralize an extremely deviated casing.
Grubelich; Mark C. (Albuquerque, NM), Su; Jiann-Cherng (Albuquerque, NM), Knudsen; Steven D. (Stanley, NM)
Sandia Corporation (Albuquerque, NM)
14/ 195,986
March 4, 2014
STATEMENT OF GOVERNMENT INTEREST The United States Government has rights in this invention pursuant to Contract No. DE-AC04-94AL85000 between the United States Department of Energy and Sandia Corporation, for the operation of the Sandia National Laboratories.