Helical winding of insulated conductor heaters for installation

US8967259B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8967259-B2
Application numberUS-201113083177-A
CountryUS
Kind codeB2
Filing dateApr 8, 2011
Priority dateApr 9, 2010
Publication dateMar 3, 2015
Grant dateMar 3, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A method for installing two or more heaters in a subsurface formation includes providing a spool having a substantially helical configuration of two or more heaters that have been spooled on the spool. The helical configuration of heaters is unspooled from the spool and the helical configuration of heaters is installed into an opening in a subsurface formation.

First claim

Opening claim text (preview).

What is claimed is: 1. A method for installing two or more heaters in a subsurface formation, comprising: providing a single spool comprising a substantially helical configuration of two or more heaters that have been spooled on the single spool, wherein the helical configuration of heaters comprises a selected pitch between about 5% and about 10%, and wherein a heat output of the helical configuration of heaters is determined by the selected pitch; varying the pitch of the helica…

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What does patent US8967259B2 cover?
A method for installing two or more heaters in a subsurface formation includes providing a spool having a substantially helical configuration of two or more heaters that have been spooled on the spool. The helical configuration of heaters is unspooled from the spool and the helical configuration of heaters is installed into an opening in a subsurface formation.
Who is the assignee on this patent?
Bass Ronald Marshall, Harley Robert Guy, De St Remey Edward Everett, and 1 more
What technology area does this patent fall under?
Primary CPC classification E21B36/04. Mapped technology areas include Fixed Constructions.
When was this patent published?
Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).