System for moving drilling module to fixed platform
First Claim
1. A dragway bridge assembly for providing a dragway extending between a fixed platform supported on the ocean floor via a plurality of legs and a remote structure spaced a distance from the fixed platform, comprising:
- a bridge having a first end, a second end and an upper surface forming the dragway;
first means movably connecting the first end of the bridge to the fixed platform for permitting movement of the bridge about the connection of the first end of the bridge to the fixed platform along a bridge axis extending generally between the first end and the second end of the bridge in a first direction and in a generally opposite second direction; and
second means movably connecting a portion of the bridge spaced a distance from the first end of the bridge to the remote structure for permitting movement of the bridge about the connection of the bridge to the remote structure in lateral directions generally perpendicular to the bridge axis.
0 Assignments
0 Petitions
Accused Products
Abstract
A jack-up rig includes a cantilever beam assembly and a drilling module is mounted on the cantilever beam assembly. The jack-up rig also includes means for moving the cantilever beam assembly from the storage position to extended positions wherein a rearward end of the cantilever beam assembly is extended from the jack-up rig. The fixed platform comprises a fixed platform support structure having a drilling module support surface and a beam opening. The jack-up rig is positioned near the fixed platform with the cantilever beam assembly generally aligned with the beam opening in the fixed platform support structure. The cantilever beam assembly then is extended through a portion of the beam opening to an extended position wherein the drilling module is supported on the cantilever beam assembly a distance generally above the drilling module support surface. The jack-up rig then is lowered to a position wherein the drilling module is supported on the fixed platform support structure. The cantilever beam assembly then is withdrawn from the beam opening and moved to the storage position thereby leaving the drilling module supported on the drilling module support surface of the fixed platform support structure. A bridge is movably connected to the fixed platform and the jack-up rig. A floor is removably supported on the cantilever beam assembly generally below the drilling module.
19 Citations
7 Claims
-
1. A dragway bridge assembly for providing a dragway extending between a fixed platform supported on the ocean floor via a plurality of legs and a remote structure spaced a distance from the fixed platform, comprising:
-
a bridge having a first end, a second end and an upper surface forming the dragway; first means movably connecting the first end of the bridge to the fixed platform for permitting movement of the bridge about the connection of the first end of the bridge to the fixed platform along a bridge axis extending generally between the first end and the second end of the bridge in a first direction and in a generally opposite second direction; and second means movably connecting a portion of the bridge spaced a distance from the first end of the bridge to the remote structure for permitting movement of the bridge about the connection of the bridge to the remote structure in lateral directions generally perpendicular to the bridge axis. - View Dependent Claims (2, 3, 4, 6)
-
-
5. The dragway bridge assembly of 4 further comprising:
-
a channel connected to the lower surface of the bridge; and second roller means connected to the fixed platform rollingly engageable with portions of the channel for permitting movement of the channel in the first and second directions along the bridge axis, the engagement of the channel with the second roller means restricting movement of the bridge generally about the connection of the bridge to the fixed platform in lateral directions generally perpendicular to the bridge axis.
-
-
7. A dragway bridge assembly for providing a dragway extending between a fixed platform supported on the ocean floor via a plurality of legs and a remote structure spaced a distance from the fixed platform, comprising:
-
a bridge having a first end, a second end and an upper surface forming the dragway; first means movably connecting the first end of the bridge to the fixed platform for permitting movement of the bridge about the connection of the first end of the bridge to the fixed platform along a bridge axis extending generally between the first end and the second end of the bridge in a first direction and in a generally opposite second direction; and second means movably connecting a portion of the bridge spaced a distance from the first end of the bridge to the remote structure for permitting movement of the bridge about the connection of the bridge to the remote structure in lateral directions generally perpendicular to the bridge axis;
comprising;square pipe means connected to the remote structure and extending a distance generally along the remote structure in lateral directions generally perpendicular to the bridge axis; roller means connected to the bridge and rollingly engaging the square pipe means whereby the bridge is rollingly movable along the square pipe means in lateral directions generally perpendicular to the bridge axis.
-
Specification