Blowout preventer ram for coil tubing

Details Blowout preventer ram for coil tubing Blowout preventer ram for coil tubing

1995-05-02

1996-11-19

Fox, John

Valves and valve actuation

Blow-out preventers

Radial reciprocating ram

251 11, E21B 3306

Patent

active

055754511

ABSTRACT:
A ram for a blowout preventer for coil tubing is disclosed. It includes a ram body having a flat face with a semi-circular cavity therein for engaging the flat face of an oppositely facing ram having a semi-circular cavity in its face. A seal member is carried by the ram to engage a seal member carried by the opposite facing ram to prevent the flow of fluid between the rams and a section of coil tubing extending vertically between the rams and encircled by the semi-circular cavities in the faces of the rams. An integral elastomeric pipe guide is carried by the ram to urge the tubing to the center of the preventer. A plurality of slip segments are mounted on the ram in the semi-circular cavity on opposite sides of the seal member to engage the tubing and hold the tubing from moving downwardly or upwardly relative to the ram.

REFERENCES:
patent: 1586923 (1926-06-01), Townsend
patent: 4508313 (1985-04-01), Jones
patent: 5013005 (1991-05-01), Nance
patent: 5089289 (1992-02-01), Nance

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