The APEA Journal

The APEA Journal

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The preventers accompanying the a#39;Glomar Illa#39; on her first well here consisted of a single 20-inch Hydril preventer rated to ... sizes and ratings of preventer stacks have been seen on drilling vessels around Australia, all rigs presently operating are ... 10.000 psi rated working pressure and equipped with two Hydril annular preventers and three or four sets of rams (one ... We shall probably see a move to eliminating, or at any rate decreasing. the number of guidelines between the guideanbsp;...

Title:The APEA Journal
Publisher: - 1974

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