Deployable centralizers
Abstract
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.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1568570
- Patent Number(s):
- 10344542
- Application Number:
- 15/441,058
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
- Patent Classifications (CPCs):
-
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 02/23/2017
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 02 PETROLEUM; 15 GEOTHERMAL ENERGY; 03 NATURAL GAS
Citation Formats
Grubelich, Mark C., Su, Jiann-Cherng, and Knudsen, Steven D. Deployable centralizers. United States: N. p., 2019.
Web.
Grubelich, Mark C., Su, Jiann-Cherng, & Knudsen, Steven D. Deployable centralizers. United States.
Grubelich, Mark C., Su, Jiann-Cherng, and Knudsen, Steven D. Tue .
"Deployable centralizers". United States. https://www.osti.gov/servlets/purl/1568570.
@article{osti_1568570,
title = {Deployable centralizers},
author = {Grubelich, Mark C. and Su, Jiann-Cherng and Knudsen, Steven D.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {7}
}
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- US Patent Document 5,261,488
Large head downhole chemical cutting tool
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Hidden bow spring for calipers and centralizers
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Centralizer for centring drilling and casing pipes and centralizing arrangement including said centralizer
patent, August 1993
- Reinholdt, Bernd
- US Patent Document 5,238,062
Deployable centralizers
patent, February 2017
- Grubelich, Mark C.; Su, Jiann-Cherng; Knudsen, Steven D.
- US Patent Document 9,580,976