Invention Grant
- Patent Title: Tubing centralizer
- Patent Title (中): 管道扶正器
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Application No.: US13541078Application Date: 2012-07-03
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Publication No.: US09051791B2Publication Date: 2015-06-09
- Inventor: Johnny B. Fayo , Ricky Wayne Jackson , Mark Nease , Scott William Long
- Applicant: Johnny B. Fayo , Ricky Wayne Jackson , Mark Nease , Scott William Long
- Applicant Address: US DE Wilmington
- Assignee: Delaware Capital Formation, Inc.
- Current Assignee: Delaware Capital Formation, Inc.
- Current Assignee Address: US DE Wilmington
- Agency: Head, Johnson & Kachigian, P.C.
- Main IPC: E21B17/10
- IPC: E21B17/10

Abstract:
The present invention is a tubing centralizer for use within casing within a wellbore. The tubing centralizer has a tubing centralizer cage comprising a top ring, a middle ring, and a bottom ring and a plurality of springs, where each spring connects the top ring to the middle ring and the middle ring to the bottom ring and where each spring has a double arcuate shape such that the springs arc radially outward between the top ring and the middle ring and again between the middle ring and the bottom ring. The springs may be sized such that they exert outward pressure against the inside wall of the casing such that the tubing centralizer resists movement along the casing. The tubing centralizer may further comprise a tubing centralizer mandrel, where the tubing centralizer mandrel is part of the tubing string and extends through the tubing centralizer cage.
Public/Granted literature
- US20140008056A1 TUBING CENTRALIZER Public/Granted day:2014-01-09
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