E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 4/16 (2006.01) E21B 4/14 (2006.01)
Patent
CA 2564935
In the field of borehole creation there is a need for a reciprocable impact hammer with a tool that is rotatable while under load. A reciprocable impact hammer (10) for use in a downhole location comprises a tool support member (11); a hammer member (12); a jack mechanism (13); a connector member (14); and a transmission (16). The transmission (16) converts linear motion of the connector member (14) to rotary motion of the hammer member (12) whereby when a force acts on the connector member (14) via the hammer member (12) and the tool support member (11) operation of the jack mechanism (13) causes initial elongation of the impact hammer (10) followed in succession by: (i) collapsing of the hammer member (12) and the tool support member (11) together such that the hammer member (12) separates from the connector member (14) and imparts an impulse to the tool support member (11); and (ii) movement of the connector member (14) towards the hammer member (12) under the influence of the force whereby the transmission (16) causes rotation of the remainder of the impact hammer (10).
Dans le domaine de la création de trou de sonde, il y a un besoin d~un marteau à impact réciproque ave un outil rotatif lorsqu~il est sous charge. Un marteau à impact réciproque (10) pour usage dans une partie de trou de sonde comprend un e partie de support de l~outil (11); une partie du marteau (12) ; un mécanisme de prise d~entrée (13) ; une élément connecteur (14) ; et une transmission (16). La transmission (16) convertie le mouvement linéaire de l~élément connecteur (14) à un mouvement rotatif de la partie du marteau (12) par lequel, lorsqu~une force exerce sur l~élément connecteur (14) à travers la partie du marteau (10) suivie successivement par : (i) l~effondrement de la partie du marteau (12) et la partie de support d~outil (11) ensemble de sorte que la partie du marteau (12) se sépare de l~élément connecteur (14) et exerce une impulsion sur la partie de support de l~outil (11) ; et (ii) un mouvement l'élément connecteur (14) vers la partie du marteau (12) sous l~influence d~une force a travers laquelle la transmission (16) cause une rotation du reste du marteau à impact (10).
Riches Mckenzie & Herbert Llp
Varco I/p Inc.
LandOfFree
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