NF EN ISO 10427-1, M87-226-1 (09/2024)

This document gives requirements for testing, performance and marking of casing tube centralizers used for the construction of oil and natural gas wells. The operating procedures establish tests to verify manufacturers' specifications with regard to design, materials and processes, and periodic tests to confirm the regularity of product performance. This specification does not apply to other devices, such as rigid centralizers and cementing umbrellas, nor to flexible arcuate blade centralizers used for other purposes (e.g.: cable tools, gravelling, internal columns). This document supplements API Specification 10D 7th edition (2021), the requirements of which are applicable with the exceptions specified in this document.
(Automatic translation from French)