Electric power supplying well head assembly

Details Electric power supplying well head assembly Electric power supplying well head assembly

1982-10-01

1985-01-01

Novosad, Stephen J.

Wells

With electrical means

166 85, 166 88, 339 60C, E21B 3303

Patent

active

044911769

ABSTRACT:
A well head assembly that terminates on the upper end in a horizontal mounting flange on which the flange of a christmas tree array of valves may be sealingly mounted to control the flow of fluid from the well associated therewith, and the well head assembly including slidably engageable first and second electrical conducting cartridges below the mounting flange for supplying electric power to a number of insulated electrical conductors that extend downwardly in the well to an electric motor driven down hole pump or other electrical apparatus. The positioning of the christmas tree array of valves at a minimum height relative to the well head is most desirable in those situations where a number of wells are drilled close together, such as on an off shore island, and equipment must be periodically moved over the array of valves for maintenance or drilling purposes. The well head assembly also includes means for pressurizing a normally open pressure actuated valve in communication with a tubing string operatively associated with the assembly to place the valve in a closed position. Closing of the valve eliminates the possibility of continued undesired fluid discharge from the well in the event of a catastrophe or malfunctioning of the well.

REFERENCES:
patent: 3223168 (1965-12-01), Stone
patent: 3489439 (1970-01-01), Word, Jr.
patent: 3638732 (1972-02-01), Huntsinger et al.
patent: 3739846 (1973-06-01), Beson
patent: 3871734 (1975-03-01), Murtland
patent: 4154302 (1979-05-01), Cugini
patent: 4181175 (1980-01-01), McGee et al.
patent: 4202410 (1980-05-01), Quebe
patent: 4289199 (1981-09-01), McGee

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