Addendum to the 11th edition of the API 5CT, Casing and Tubing
An Addendum to the 11th edition of the API Spec 5CT, Casing and Tubing has been published May 20, 2025. The update strengthens the requirements for the manufacture of steel casing and tubing used in oil and gas drilling and production operations, enhancing safety, environmental protection and operational integrity.
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