TECHNOLOGY Wellhead and tree standards updated

03/11/1996
Anton J. Dach Jr., Timothy Haeberle ABB Vetco Gray Houston This well completion includes ABB Vetco Gray valves manufactured according to the latest API specifications. Revisions in the API 6A, 17th Edition, have resolved a number of long-term problems and expanded its scope and coverage of wellhead and christmas tree equipment. The 17th Edition, Feb. 1, 1996, represents the state-of-the-art in international requirements for wellhead and christmas tree equipment. The design, materials, and quality control aspects of API 6A have all been improved with an emphasis on making the document more acceptable around the world. However, there are unresolved issues that raise many questio...
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