Subsea well submersible pump installation

Patent · Tue May 20 04:00:00 EDT 1986

OSTI ID:5475421

Greiner, T D; Guzy, R L; Knox, D L

A subsea wellhead assembly is described having a tubular member, suspension head means for locating in the tubular member and suspending a submersible pump, an improved connection means for making an electrical connection from an external cable to an internal cable extending from the pump to the suspension head means. The assembly consists of: an inner insulator carried by the suspension head means; an electrical connector sleeve connected to the internal cable and carried in the inner insulator; a resilient, outer insulator movably carried in a passage extending laterally through a wall of the tubular member, and having a sealing face facing inwardly, the outer insulator having a passage therethrough that terminates in a slit at the sealing face; an electrical connector rod movably carried in the passage of the outer insulator and connected to the external cable, the connector rod being movable relative to the sealing face between a recessed position with its tip recessed within the outer insulator with the slit being closed to prevent the entry of sea water to a protruding position protruding through the slit past the sealing face for entering the connector sleeve; and hydraulic piston means for moving the outer insulator relative to the tubular member into engagement with the suspension head means while the connector rod remains in the recessed position, then for moving the connector rod relative to the tubular member from the recessed position to the protruding position into electrical engagement with the connector sleeve while the outer insulator remains stationary.

• Assignee: Hughes Tool Co., Houston, TX
• Patent Number(s): US 4589492
• OSTI ID: 5475421
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
42 ENGINEERING
423000 -- Engineering-- Marine Engineering-- (1980-)
CABLES
CONDUCTOR DEVICES
CONTROL EQUIPMENT
DRILL PIPES
DRILLING
DRILLING EQUIPMENT
ELECTRIC CABLES
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
EQUIPMENT
HYDRAULIC CONTROL DEVICES
NATURAL GAS WELLS
OFFSHORE DRILLING
OIL WELLS
PIPES
PISTONS
POSITIONING
PUMPS
SEALS
WELLHEADS
WELLS