Electric power supplying well head assembly

Patent · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5877706

Reed, L T

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.

• Assignee: EDB-85-077015
• Patent Number(s): US 4491176
• OSTI ID: 5877706
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ACTUATORS
BLOWOUT PREVENTERS
CONTROL
CONTROL EQUIPMENT
DESIGN
ELECTRIC CONDUCTORS
ELECTRICAL INSULATION
ELECTRONIC EQUIPMENT
EQUIPMENT
FLOW REGULATORS
NATURAL GAS WELLS
OIL WELLS
POWER SUPPLIES
PRESSURE CONTROL
VALVES
WELLHEADS
WELLS