Subsea wellhead connection assembly and methods of installation

Patent · Tue Mar 20 04:00:00 EST 1984

OSTI ID:6804199

Richardson, E M; Chatas, A T; Padilla, J R

A subsea wellhead connection assembly is claimed for establishing fluid communication and production capability between a subsea wellhead and an adjacent subsea manifold system. The assembly includes conduit means for fluidly connecting the wellhead and the manifold system, the conduit means having one end extending substantially horizontally and the other end situated below the horizontal end; wellhead connector means fluidly connected to the lower end of the conduit means for releasably connecting the conduit means to the wellhead upon downward movement of the assembly to establish fluid communication therebetween; manifold system connector means fluidly connected to the horizontal end of the conduit means for releasably connecting the conduit means to the manifold system upon lateral movement of the manifold system connector means to establish fluid communication therebetween; and a guide frame rigidly secured to the wellhead connector means for supporting the manifold system connector means and the conduit means, and for vertically aligning the wellhead connector means over the wellhead and horizontally aligning the manifold system connector means with the manifold system. A method of establishing fluid communication and production capability between a marine floor wellhead and an adjacent subsea manifold system employing the aforecited wellhead connection assembly components is also disclosed.

• Assignee: Mobil Oil Corp.
• Patent Number(s): US 4437521
• OSTI ID: 6804199
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
DESIGN
LEVELS
MECHANICAL STRUCTURES
NATURAL GAS WELLS
OFFSHORE SITES
OIL WELLS
PIPES
SUPPORTS
UNDERWATER
WELLHEADS
WELLS