Patent ID: 11873688
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 15:
16. A centralizer assembly for use in a wellbore, the centralizer comprising:
an elongated, primary tubular member extending along a centralizer axis and having a first end and a second end with a tubular wall extending between the first and second ends, the tubular wall having an inner surface and an outer surface, wherein the primary tubular member is polygonal in cross-section such that tubular wall is formed with at least three sides;
at least three inwardly extending ridges formed by the wall and a plurality of outwardly extending ridges formed by the wall, wherein at least two outwardly extending ridges are positioned between two inwardly extending ridges, the inwardly extending ridges each extend inward to an inner diameter and the outwardly extending ridges each extend outward to an outer diameter, and wherein the two inwardly extending ridges of a side are joined by an outward transition ridge that is spaced apart from the outer diameter.