Subsea well with retrievable piping deck

Details Subsea well with retrievable piping deck Subsea well with retrievable piping deck

1982-09-29

1984-03-27

Leppink, James A.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166344, 166357, 166366, 166368, E21B 4301

Patent

active

044388179

ABSTRACT:
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.

REFERENCES:
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patent: 4192383 (1980-03-01), Kirkland et al.
patent: 4194857 (1980-03-01), Chateau et al.
patent: 4286665 (1981-09-01), Walker

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