Patent ID: 6817423
Filing Date: 2004-11-16
Classification: E21B

Abstract:
An apparatus for protecting equipment in a wellhead of a well from exposure to fluid pressures, abrasives and corrosive fluids used in a well treatment to stimulate production, comprising:a tool adapted to be inserted through the wellhead of the wellhead into an operative position, the tool including a base plate adapted to be connected to a top end of the wellhead and a connector plate at a top end thereof for supporting equipment selectively mounted to the tool; and a pair of injectors in a parallel relationship located at respective opposed sides of the base plate and connector plate, each injector having opposed ends secured to the base plate and the connector plate, respectively, so that the injectors can reciprocate a mandrel of the tool through the wellhead into and out of the operative position when the base plate is connected to the top end of the wellhead.