Subsea well with retrievable piping deck

Patent · Tue Mar 27 04:00:00 EST 1984

OSTI ID:6605046

Pokladnik, R L; Valka, W A

An apparatus and method for drilling and completing a subsea well located at the seabed using a retrievable piping deck. The apparatus includes a template supported on the seabed, the retrievable piping deck supported on the template, a plurality of wellheads supported on the template and a plurality of Christmas trees supported on the wellheads. The piping deck has preinstalled flow lines and hydraulic lines to conduct well fluid from the Christmas trees to the surface and to conduct hydraulic control fluid from the surface to the trees. In addition to the Christmas trees, a well fluid manifold and a gaseous-liquid component separator can be supported on the template. The fluid connections between the Christmas trees and the hydraulic and flow lines and between the manifold and separator and the hydraulic and flow lines are accomplished by vertically oriented stab-in connectors. After installation of the template and drilling of the wells, the piping deck is lowered independently to the template and coupled thereto and then the Christmas trees and manifold-separator are lowered to the template and into fluid communication with the piping deck hydraulic and flow lines.

• Assignee: Armco Inc.
• Patent Number(s): US 4438817
• OSTI ID: 6605046
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
CONTROL EQUIPMENT
DESIGN
DRILLING
DRILLING RIGS
EQUIPMENT
FIELD PRODUCTION EQUIPMENT
FLOW REGULATORS
HYDRAULIC EQUIPMENT
INSTALLATION
NATURAL GAS WELLS
OFFSHORE PLATFORMS
OFFSHORE SITES
OIL WELLS
OPTIMIZATION
PIPES
REMOVAL
SEPARATION EQUIPMENT
VALVES
WELL CASINGS
WELL COMPLETION
WELL DRILLING
WELLS