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US 6,637,511 B2Granted
Borehole casing centralizer
AssigneeKwik-Zip Pty. Ltd.
InventorBrian Robert Linaker
Life of this patent
Estimating the term…
Abstract
A borehole casing centralizer segment (1) including a first collar portion (3), a second collar portion (5), and bows (7) extending between the first collar portion (3) and the second collar portion (5). First connectors (9) are provided at first locations of the first collar portion (3) and the second collar portion (5), respectively. The first connections (9) are engageable with the second connectors (11) of the same or another centralizer segment (1). In this way, one or more centralizer segments (1) are connectable together to form a centralizer around a borehole casing.
Claims27
A bore casing centralizer segment comprising:
- a plurality of substantially arcuate bows;
- each of said bows having a first collar portion being of substantially elongate configuration fixedly connected to a first end of said bow;
- each of said bows having a second collar portion being of substantially elongate configuration fixedly connected to a second end of said bow;
- each of said first collar portions being substantially parallel to said second collar portions;
- first connectors provided at a first end of each of said first collar portions and a first end of each of said second collar portions;
- second connectors provided at a second end of each of said first collar portions and a second end of each of said second collar portions;
- wherein each of said first connectors engages one of said second connectors such that at least two of said centralizer segments are connectable together to form a centralizer which can be located around a borehole casing.
4 more elements
Dependencies are inferred from the claim text.