| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.19 ( November 1988 ) Steel Pipe ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Development of Premium Threaded Connection
"FOX" Yutaka Hirano, Tatsuro Maguchi, Kunihiko Kobayashi, Ken-ichi Yamamoto, Katsuo Ueno, Joe K. Duxbury |
| Synopsis: Production of gas and oil from deep, high pressure, high flow-rate wells requires the use of tubing connected at regular intervals by high integrity joints. Premium connections must provide good gas tightness, joint strength, and corrosion resistance. This paper outlines the newly developed premium threaded connection, FOX, which incorporates a pitch change concept to alleviate the high tooth peak loads exhibited by conventional threaded connections. This leads to an efficient transfer of load between the components of the joint and an increase in the sealing strain energy combined with the modified metal-to-metal triple radius seal to reduce local stress concentrations. |
| TextiPDF: 7P/334kbj |