IMPROVED RAM BORE PROFILE FOR VARIABLE BORE PACKER RAM IN A RAM TYPE BLOWOUT PREVENTER

摘要

IMPROVED RAM BORE PROFILE FOR VARIABLE BORE PACKER RAMIN A RAM TYPE BLOWOUT PREVENTER An improved ram bore profile for use with a variable bore ram packer designedfor use in a standard ram-type blowout preventer used in oil and gas drilling operations isdisclosed. The improved ram bore profile in the ram body is a substantially U shapedcutout in the front face of the ram body. The U shaped ram bore profile extends betweenthe upper surface and lower surface of the ram body. The substantially U shape of theimproved ram bore profile is further characterized by having an arcuate rear portion with apair of diverging sides that extend outwardly toward the front face of the ram body to afront throat that intersects perpendicularly the front face of the ram body. The improvedram bore profile is capable of being used with variable bore packers of differentconfigurations.