scope:

The purpose of this specification is to provide minimum performance standards, test procedures, and marking requirements for bow-spring casing centralizers. The requirements contained herein are limited but are deemed adequate for use in oil field cementing operations.

This specification is under the jurisdiction of the Committee on Standardization of Weil Cements.

This specification covers performance requirements for bow-spring centralizers under specified testing procedures. This testing serves (a) as verification testing for manufacturer's design, materials, and process specifications; and (b) as periodic testing to confirm the consistency of product performance. It is not applicable to rigid or solid centralizers. Testing equipment, as well as marking requirements, are included. In addition, calculations for determining centralizer spacing, based on centralizer performance and desired standoff, in deviated and dogleg holes are presented.