Method for loading and unloading substructures for a mobile...

Details Method for loading and unloading substructures for a mobile... Method for loading and unloading substructures for a mobile...

2005-03-01

2008-08-19

Rodriguez, Saul J. (Department: 3652)

Material or article handling

Load-transporting type vehicle and external means...

C414S435000, C280S404000

Reexamination Certificate

active

07413393

ABSTRACT:
A method for unloading a drilling rig substructure at a drilling site entails transporting the substructure to the drilling site using a truck and a dolly. The substructure is lowered onto the dolly rollers. The dolly is secured and the truck moves towards the dolly pushing the substructure along the rollers. The gooseneck is disconnected from the substructure and connected to the dolly. A first wireline is connected from a first winch to the substructure and a second wireline is connected from the second winch to the substructure through the sheave block. The second winch pulls the substructure along the rollers and is disconnected once the substructure contacts the site. The dolly is unsecured and the truck moves in an opposite direction from the rig, thereby allowing the substructure to move along rollers onto the site. A method for loading a drilling rig substructure onto a truck and a dolly is also described herein.

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patent: 2004/0211598 (2004-10-01), Palidis
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