Submersible Drilling Rig

Anchor Rig Positioning is offered to submersible drilling rigs.

An anchor is an object, often made out of metal, that is used to attach a ship to the bottom of a body of water at a specific point. There are two primary classes of anchors—temporary and permanent. A permanent anchor is often called a mooring, and is rarely moved; it is quite possible the vessel cannot hoist it aboard but must hire a service to move or maintain it. Vessels carry one or more temporary anchors which may be of different designs and weights. A sea anchor is a related device used when the water depth makes using a mooring or temporary anchor impractical.

A submersible drilling rig is an offshore drilling structure with several compartments that are flooded to cause the structure to submerge and rest on the sea floor. Most submersible rigs are used only in shallow waters.

Contact our Marine Construction Division managers.

V. P. of Marine and Construction Surveys - Ralph Coleman
Marine Operations Manager - Eric Granger
Survey Advisor - George Buhler