BLOWOUT PREVENTER BLADE ASSEMBLY AND METHOD OF USING SAME
摘要
Techniques for shearing a tubular of a wellbore penetrating a subterranean formation with a blowout preventer are provided. The blowout preventer has a housing with a hole therethrough for receiving the tubular. The techniques relate to a blade assembly including a ram block movable between a non-engagement position and an engagement position about the tubular, a blade carried by the ram block for cuttingly engaging the tubular, and a retractable guide carried by the ram block and slidably movable therealong. The restractable guide has a guide surface for urging the tubular into a desired location in the blowout preventer as the ram block moves to the engagement position.
申请公布号
WO2012042268(A2)
申请公布日期
2012.04.05
申请号
WO2011GB51852
申请日期
2011.09.29
申请人
NATIONAL OILWELL VARCO, L.P.;LUCAS, BRIAN RONALD;SPRINGETT, FRANK BENJAMIN;JOHNSON, CHRISTOPHER DALE;PETERS, SHERN EUGENE;ENSLEY, ERIC TREVOR
发明人
SPRINGETT, FRANK BENJAMIN;JOHNSON, CHRISTOPHER DALE;PETERS, SHERN EUGENE;ENSLEY, ERIC TREVOR