发明名称 WELLHEAD ASSEMBLY WITH TUBING TENSIONING MEANS
摘要 A tubing string (86) is connected at its upper end to a hanger (42) and has its lower end anchored within an outer casing. The hanger and tubing string are lifted from a position below the wellhead assembly to tension the tubing string a desired amount. The hanger has a plurality of guide pins (90) extending from and spaced about the outer periphery of the hanger. Upon lifting of the hanger and suspended tubing string, the guide pins enter inverted J-slots (62) in the hanger bowl (30) which receive and guide the pins to a seated position on the bowl.
申请公布号 AU5852680(A) 申请公布日期 1981.03.05
申请号 AU19800058526 申请日期 1980.05.19
申请人 ACF INDUSTRIES INC. 发明人 JOE G. CHAMBLESS;PAUL E. MCGLASSON
分类号 E21B33/04 主分类号 E21B33/04
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