ELECTRIC POWER SUPPLYING WELL HEAD ASSEMBLY

摘要

An electric power supplying well head assembly (A-2') that includes a well head member (B') that removably supports a mounting flange (20') from which a christmas tree valve supporting assembly (28') extends upwardly. A first electrical conducting cartridge (E') is connected to an electrical supply cable (F') and transversely mounted for movement between a coupled and uncoupled position in well head member (B'). A tubing hanger (C') is rotatably supported in well head member (B') and supports a tubing string (52') therefrom. Tubing string (52') has a fluid actuated valve (260) therein from which tubing (262) extends upwardly to connect to tubing hanger (C) and communicates with passages (268, 270) and cavity (272) therein. A connector (J') is removably secured to the tubing hanger (C') and has an electric cable (H') extending downwardly therefrom to an electrical operated device. A second electrical conducting cartridge (D') is removably supported in tubing hanger (B') in communication with connector (J') and removably coupled to the first cartridge (E'). Determining the coupling position is by use of an index assembly (K). When the tubing hanger is in a coupling position a tubular member (278) may be extended transversely through well head member (B') to sealingly engage cavity (272), with pressurized fluid thereafter being delivered to tubular member (278) to operate valve (260). Second cartridge (D') may be removed from tubing hanger (C') for replacement or repair by removing flanger (20') from well head (B') and moving first cartridge (E') to an uncoupled position.