Flexible production riser assembly and installation method

Patent · Tue Apr 05 04:00:00 EDT 1988

OSTI ID:5075739

Stevens, J W

A flexible production riser assembly for handling production fluid from oil and gas fields in water-covered areas is described, capable of fluid communications with an offshore production facility having a buoyant hull adapted to float the production facility on a body of water. The hull has a vertical opening there-through. The offshore production facility carries releasable pipe connector means capable of placing fluid conduit means carried by the offshore facility in fluid communication with the flexible production riser assembly, and carries connection means rigidly secured to the offshore production facility to operatively secure the upper portion of the flexible production riser assembly to the offshore production facility. The flexible production riser assembly comprises: flowline float means releasably secured to the connection means in vertical alignment with the hull opening, flexible steel flowline means operatively engaged with the flowline float means, flexible joint means operatively engaged with the upper ends of the flexible steel flowline means and the flowline float means, to secure the flexible steel flowline means to the flowline float means.

• Assignee: Shell Oil Co., Houston, TX
• Patent Number(s): US 4735267
• OSTI ID: 5075739
• 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
420206 -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
ALLOYS
CABLES
DESIGN
DRILL PIPES
DRILLING EQUIPMENT
EQUIPMENT
FLUID FLOW
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
MARINE RISERS
NATURAL GAS WELLS
OFFSHORE PLATFORMS
OIL WELLS
PIPES
STEELS
WELLS