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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.
Tripping Operations in Hydrostatically Overbalanced Wells, First Edition
Standard published on 1.12.2022
Selected format:Tripping Operations with Surface Backpressure Managed Pressure Drilling with Surface Blowout Preventer, First Edition
Standard published on 1.12.2025
Selected format:Tripping Operations with Surface Backpressure Managed Pressure Drilling with Subsea Blowout Preventer, First Edition
Standard published on 1.12.2025
Selected format:Recommended Practice for Testing of Thread Compound for Rotary Shouldered Connections
Standard published on 1.11.1992
Selected format:Specification for Internal-Combustion Reciprocating Engines for Oil Field Service
Standard published on 1.11.1994
Selected format:Recommended Practice for Installation, Maintenance, and Operation of Internal-Combustion Engines
Standard published on 1.11.1994
Selected format:Cold Working Thread Roots with CNC Lathes for Rotary Shouldered Connections, First Edition
Standard published on 1.1.2020
Selected format:Casing Wear Tests, First Edition
Standard published on 1.6.2015
Selected format:Oil Field Chain and Sprockets, Eighth Edition, Includes Errata
Standard published on 1.11.2010
Selected format:Errata to Oil Field Chain and Sprockets, Eighth Edition
Adjunct of the standard published on 1.5.2013
Selected format:Latest update: 2025-12-18 (Number of items: 2 252 678)
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