Turned-down centralizer sub assembly
AssigneeInnovex Downhole Solutions, Inc.
InventorsGreg P. Roger, Jeff Musselwhite, Brent James Lirette, Iain Levie
Life of this patent
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Abstract
A centralizer assembly and method for manufacturing a centralizer assembly. The centralizer assembly includes a mandrel including a first raised region having a first diameter, and a turned-down region having a second diameter, the second diameter being smaller than the first diameter. The centralizer assembly also includes a first stop segment extending at least partially around the mandrel in the turned-down region, and a centralizer disposed at least partially in the turned-down region. The first stop segment is received between axial extents of the centralizer, to limit a range of motion of the centralizer relative to the mandrel.
Claims16
A centralizer assembly, comprising:
- a mandrel comprising a first raised region having a first outer diameter, and a turned-down region having a second outer diameter, the second outer diameter being smaller than the first outer diameter;
- a first stop segment extending at least partially around the mandrel in the turned-down region;
- and
- a centralizer disposed at least partially in the turned-down region, wherein the first stop segment is received between axial extents of the centralizer, to limit a range of motion of the centralizer relative to the mandrel,
- wherein the mandrel further comprises a pin end connection and a second raised region extending from the pin end to the turned-down region, and wherein the second raised region defines a third outer diameter that is greater than the second outer diameter and less than the first outer diameter, and
- wherein the centralizer comprises an end collar defining an inner diameter that is less than the first outer diameter and less than the third outer diameter.
Dependencies are inferred from the claim text.