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Title: Expandable Metal Liner For Downhole Components

Abstract

A liner for an annular downhole component is comprised of an expandable metal tube having indentations along its surface. The indentations are formed in the wall of the tube either by drawing the tube through a die, by hydroforming, by stamping, or roll forming and may extend axially, radially, or spirally along its wall. The indentations accommodate radial and axial expansion of the tube within the downhole component. The tube is inserted into the annular component and deformed to match an inside surface of the component. The tube may be expanded using a hydroforming process or by drawing a mandrel through the tube. The tube may be expanded in such a manner so as to place it in compression against the inside wall of the component. The tube is useful for improving component hydraulics, shielding components from contamination, inhibiting corrosion, and preventing wear to the downhole component during use. It may also be useful for positioning conduit and insulated conductors within the component. An insulating material may be disposed between the tube and the component in order to prevent galvanic corrosion of the downhole component.

Inventors:
 [1];  [1]
  1. Provo, UT
Issue Date:
Research Org.:
Novatek Engineering Inc
OSTI Identifier:
879809
Patent Number(s):
6799632
Application Number:
10/212187
Assignee:
Intelliserv, Inc. (Provo, UT)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
DOE Contract Number:  
FC26-97FT34365
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Hall, David R, and Fox, Joe R. Expandable Metal Liner For Downhole Components. United States: N. p., 2004. Web.
Hall, David R, & Fox, Joe R. Expandable Metal Liner For Downhole Components. United States.
Hall, David R, and Fox, Joe R. Tue . "Expandable Metal Liner For Downhole Components". United States. https://www.osti.gov/servlets/purl/879809.
@article{osti_879809,
title = {Expandable Metal Liner For Downhole Components},
author = {Hall, David R and Fox, Joe R},
abstractNote = {A liner for an annular downhole component is comprised of an expandable metal tube having indentations along its surface. The indentations are formed in the wall of the tube either by drawing the tube through a die, by hydroforming, by stamping, or roll forming and may extend axially, radially, or spirally along its wall. The indentations accommodate radial and axial expansion of the tube within the downhole component. The tube is inserted into the annular component and deformed to match an inside surface of the component. The tube may be expanded using a hydroforming process or by drawing a mandrel through the tube. The tube may be expanded in such a manner so as to place it in compression against the inside wall of the component. The tube is useful for improving component hydraulics, shielding components from contamination, inhibiting corrosion, and preventing wear to the downhole component during use. It may also be useful for positioning conduit and insulated conductors within the component. An insulating material may be disposed between the tube and the component in order to prevent galvanic corrosion of the downhole component.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {10}
}