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API (American Petroleum Institute) is a leader in the development of petroleum and petrochemical equipment and operating standards covering topics that range from drill bits to environmental protection. These embrace proven, sound engineering and operating practices and safe, interchangeable equipment and materials. Many have been incorporated into state and federal regulations and adopted by ISO for worldwide acceptance.
Addendum to Specification for Cements and Materials for Well Cementing, Twenty-Fifth Edition
Adjunct of the standard published on 1.11.2019
Selected format:Addendum to Specification for Cements and Materials for Well Cementing, Twenty-Fifth Edition
Adjunct of the standard published on 1.8.2022
Selected format:Recommended Practice for Testing Well Cements, Third Edition
Standard published on 1.7.2024
Selected format:Recommended Practice on Testing of Well Cements Used in Deepwater Well Construction, Second Edition
Standard published on 1.1.2016
Selected format:Recommended Practice on Preparation and Testing of Foamed Cement Slurries at Atmospheric Pressure, Second Edition
Standard published on 1.10.2015
Selected format:Recommended Practice on Determination of Shrinkage and Expansion of Well Cement Formulations at Atmospheric Pressure, First Edition
Standard published on 1.4.2005
Selected format:Recommended Practice on Determining the Static Gel Strength of Cement Formulations, First Edition, Includes Addendum 1 (2020)
Standard published on 1.8.2010
Selected format:Addendum to Recommended Practice on Determining the Static Gel Strength of Cement Formulations, First Edition
Adjunct of the standard published on 1.1.2020
Selected format:Centralizer Placement and Stop-collar Testing, Second Edition
Standard published on 1.8.2023
Selected format:Casing Bow-spring Centralizers, Seventh Edition
Standard published on 1.3.2021
Selected format:Latest update: 2026-10-22 (Number of items: 2 207 753)
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