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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A ram specially designed to cut through or shear drill pipe when the string is in the hole and it is necessary to seal the bore completely and quickly against high well pressure.  2, record 1, English, - shear%20ram

Record number: 1, Textual support number: 2 DEF

A closure mechanism on a well' s blowout preventer stack fitted with chisel-like jaws that are hydraulically operated. When the ram is closed on the pipe the jaws or blades cut the pipe, permitting the upper section to be removed from the BOP stack.  3, record 1, English, - shear%20ram

Record number: 1, Textual support number: 1 CONT

... shear rams cut through drill pipe and then form a seal.  4, record 1, English, - shear%20ram

Record number: 1, Textual support number: 2 CONT

Shear rams are used in mobile, offshore drilling operations to afford a quick method for moving the rig away from the hole when there is not time to trip the drill stem out of the hole.  4, record 1, English, - shear%20ram

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Opercule d'un obturateur de puits muni de lames qui permettent d'assurer une coupure instantanée des tiges.  4, record 1, French, - m%C3%A2choire%20de%20s%C3%A9curit%C3%A9%20%C3%A0%20cisaillement

Record number: 1, Textual support number: 1 CONT

[Figure.] Obturateur double à mâchoires (dont un jeu de mâchoires-cisailles).  3, record 1, French, - m%C3%A2choire%20de%20s%C3%A9curit%C3%A9%20%C3%A0%20cisaillement

Record number: 1, Textual support number: 1 OBS

Les BOP [obturateurs de puits] fonctionnent à 1 500 psi (pression maxi de travail) sauf pour la fonction de cisaillage («shear-ram») de la garniture où la pression nécessaire peut être importante compte tenu de la résistance des tiges.  2, record 1, French, - m%C3%A2choire%20de%20s%C3%A9curit%C3%A9%20%C3%A0%20cisaillement

Record number: 1, Textual support number: 2 OBS

mâchoire de sécurité à cisaillement : terme confirmé par l'Institut français du pétrole.  4, record 1, French, - m%C3%A2choire%20de%20s%C3%A9curit%C3%A9%20%C3%A0%20cisaillement

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

In case of a blow-out during drilling, two safety devices are provided. First are the Shaffer gates ... which can be closed almost instantaneously either manually or by means of compressed air. The gates have semi-circular rubber rams that can fit closely around the drill stem, drill collar or casing, as may be appropriate, so as to seal-off the surrounding annular space.  1, record 2, English, - semi%2Dcircular%20ram

Record number: 2, Textual support number: 1 OBS

ram : The closing and sealing component on a blowout preventer. One of three types-blind, pipe, or shear-may be installed in several preventers mounted in a stack of top of the wellbore.  2, record 2, English, - semi%2Dcircular%20ram

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

En cas d'éruption en cours de forage, deux dispositifs de sécurité sont prévus. Les premiers correspondent aux fermetures de sécurité de Shaffer que l'on peut bloquer presque instantanément, soit manuellement, soit au moyen d'air comprimé. Ces fermetures ont des mâchoires semi-circulaires en caoutchouc qui peuvent s'ajuster étroitement autour du train des tiges, de la garniture du forage ou du tubage, de façon à obturer l'espace annulaire environnant.  1, record 2, French, - m%C3%A2choire%20semi%2Dcirculaire

Record number: 2, Textual support number: 1 OBS

mâchoire : Élément de fermeture et d'étanchéité d'un bloc obturateur de puits. Il existe trois types de mâchoires : la mâchoire pleine, la mâchoire de fermeture sur tige et les mâchoires-cisailles que l'on peut monter dans les obturateurs empilés verticalement à l'entrée du puits.  2, record 2, French, - m%C3%A2choire%20semi%2Dcirculaire

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A closure mechanism on a blow-out preventer stack; a hydraulically operated type of valve designed to close in a well as with a conventional valve or to close on tubing or drill pipe and maintain high pressure contact. Hydraulic pistons push the valves rams against the pipe, one ram on each side, making a pressure-tight contact.  2, record 3, English, - ram

Record number: 3, Textual support number: 1 OBS

Rams are of three types: blind, pipe and shear.  3, record 3, English, - ram

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Piston d'acier ou de caoutchouc dur, à fonctionnement hydraulique. Dans les opérations offshore, c'est le piston remplaçable qui ferme le sondage quand on fait fonctionner l'obturateur anti-éruption.  3, record 3, French, - m%C3%A2choire%20d%27obturateur

Record number: 3, Textual support number: 1 CONT

obturateur [en anglais : «blow out preventer; B.O.P.»] : Un obturateur est une sorte de vanne très puissante, à commande hydraulique permettant la fermeture quasi instantanée d'un forage. [...] Il existe des obturateurs à mâchoires formant deux demi opercules et composés de telle façon qu'ils puissent fermer soit sur les tiges, soit sur les joints de tiges soit sur les masses-tiges, soit assurer une fermeture totale et même une coupure instantanée des tiges. Ces obturateurs peuvent être soit simples, soit doubles (deux paires de mâchoires dans un même corps).  4, record 3, French, - m%C3%A2choire%20d%27obturateur

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

A large valve, usually installed above the ram preventers, which forms a seal in the annular space between the pipe and wellbore or, if no pipe is present, on the wellbore itself.  5, record 4, English, - annular%20blowout%20preventer

Record number: 4, Textual support number: 1 CONT

An annular BOP will seal an irregular hole effectively, whether or not the drill string is in the casing, and furthermore the rubber is sufficiently pliable to enable the string to be moved up or down without fluid escaping.  6, record 4, English, - annular%20blowout%20preventer

Record number: 4, Textual support number: 1 OBS

... often called a Hydril after one of the manufacturers of such units.  4, record 4, English, - annular%20blowout%20preventer

Record number: 4, Textual support number: 2 OBS

Often any brand of annular preventer is called a Hydril, even though Cameron, Rucker-Shaffer, and others manufacture such units.  4, record 4, English, - annular%20blowout%20preventer

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Obturateur antiéruption annulaire fermant sur tous les diamètres.  2, record 4, French, - obturateur%20annulaire

Record number: 4, Textual support number: 1 CONT

L'obturateur annulaire (annular BOP) est l'obturateur le plus largement utilisé dans l'industrie des forages pétroliers.  3, record 4, French, - obturateur%20annulaire

Record number: 4, Textual support number: 1 OBS

Hydril : Dénomination d'un obturateur annulaire qui porte le nom de la compagnie qui le fabrique.  2, record 4, French, - obturateur%20annulaire

Record 4,  Textual support,  Spanish