rash preventive controller and rash preventive controller assembly

摘要

eruption preventive controller, and, the eruption preventive controller assembly the present invention relates to a preventive eruption controller (bop) for use in constructing a well drilling in an underground fluid reservoir and / or in fluid production, typically hydrocarbon fluids from a reservoir such as this, in particular to an unprecedented bop configuration which may have a smaller outside diameter for a given operating force than conventional bops. the unpublished bop comprises a housing having a longitudinal geometrical axis and which is divided into a first housing part and a second housing part, the movement of the first housing part relative to the second housing part being prevented by primers each fastener including a mechanical shaft extending through a fastener receiving passage provided in the first part of the housing into a fastener receiving passage provided in the second part of the housing, the housing being additionally provided with fluid flow passages which extend from the first housing part to the second housing part, the fluid flow passages being spread between fastener receiving passages. In one embodiment of the invention, three annular bops according to this drawing are integrated to form a set. A sealing assembly is mounted in a central hole of the hole, the lower end of the sealing assembly being supported in a locking coupling extending from the bop housing to the interior of the central hole. the locking coupling is movable, for example bop housing.