Deployable centralizers

United States Patent

9,580,976
February 28, 2017
View the Complete Patent at the US Patent & Trademark Office
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.
14/195,986
March 4, 2014
1/1;
E21B 17/10 (20060101);
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.