E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/06 (2006.01) E21B 33/064 (2006.01) E21B 34/02 (2006.01) E21B 34/04 (2006.01)
Patent
CA 2450815
The present invention discloses apparatus and methods for replacing a BOP with a gate valve (10) to thereby save space, initial costs, and maintenance costs that 5 is especially beneficial for use in offshore subsea riser packages. The method provides a gate valve (100) capable of reliably cutting tubing (122) utilizing a cutting edge (106) with an inclined surface (124) that wedges the cut portion of the tubing out of the gate valve body (36). A method and apparatus (150) is provided for determining the actuator force needed to cut the particular size tubing (122).
L'invention concerne un appareil et des procédés de remplacement avantageux d'un BOP par un robinet-vanne (10) pour gagner de l'espace, réduire le coût d'installation initial ainsi que le coût de la maintenance dans des applications de garnissage de colonnes montantes sous-marines. Ce procédé utilise un robinet-vanne (100) capable de couper efficacement un tube (122) au moyen d'un bord tranchant (106) biseauté (124) qui repousse la partie sectionnée du tube à l'écart du corps du robinet-vanne (36). L'invention concerne par ailleurs un procédé et un appareil (150) permettant de déterminer la force requise pour sectionner le tube (122) de dimension particulière.
Kirby Eades Gale Baker
Worldwide Oilfield Machine Inc.
LandOfFree
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