Stripper rubber for preventer

Otherwise, formation fluids would continue to enter the well. As many as 10 anchors are used in a mooring system. However, one consideration relating to reeled systems is the cutting strength of the shear rams. The stripper rubber as defined in claim 3 wherein said restraining means comprises a substantially cylindrical can, said stripper body mounted within said cylindrical can. The lower end of the packer I3 is rigidly anchored at M to the upper end of a ring-like piston l slidabl fitting in the chamber [2 and which may be actuated by any suitable means.
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Replacement Rubber Packing

More recent drilling heads have incorporated two axially separated stripper rubbers to maintain the seal thereby preventing fluid flow through the drilling head. Stripper rubber adapter insert includes top ring In addition, dart-type check-valve internal BOP's Fig. Occasionally, the ideal coiled tubing for an operation may be excluded because of such factors as crane or transport limitations or that the life of the coil may not be economical. The stripper rubber has an upper annular area attached to the lower end of a metal support member. The preventer of claim 2'; the said abutment device consisting of pendent, diaphragm sections which recede from the upper end of the packer as it is retracted by a reverse action of the piston.
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Double E, Inc. | Sucker Rod Stripper

The gasket 24 is comprised of a sufficient volume of elastic material to present a truncated conical gasket face 24 F protruding from the truncated conical load bearing surface 20 of the steel core Another issue associated with nitrogen generation is the purity of the nitrogen itself. Figure 1 is an elevation, partly in axial section, of the unit with the packer in fully open position, and. An improved stripper rubber for a rotating blowout preventor is claimed. The inner and outer annular members are made integral respective to the upper annular area of the stripper rubber, and are separated from one another by a downwardly opening annular recess.
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The sealing relationship between the stripper packer and the mounting collar also includes the use of an O-ring seated in a mounting groove formed in an annular section of the mounting collar. This arrangement allows the desired sealing under compressive pressure without the occurrence of a torque force on the gasket that might tear, strip or otherwise dislodge the gasket from the cavity The assembly of claim 11 , wherein the support member reciprocally pivots radially from the upper moiety to provide dynamic dilation and contraction of the lower moiety. In addition, the double wipers are available in solid, split, and split rap-a-round configurations. A generally cylindrical upper moiety and a dynamic generally frusto-conical lower moiety of the stripper rubber cooperatively define a bore for receiving oil field equipment such as a drillstring. Patent and Trademark Office. Oil, water and gas wells are drilled with a drill bit attached to a hollow drill string which passes through a well casing installed in the well bore.
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