Drilling Rig Derrick

Lee C. Moore's drilling rigs can be found on the job of virtually every major drilling company around the world in a variety of environments, including off shore. These rigs are very large which makes them difficult to handle and transport. Job site material handling is often rough and tumble. The durability of hot-dip galvanizing (HDG) makes it the perfect coating for these conditions without special handling or packaging. Drilling rigs are exposed to and expected to be operational in extreme weather and temperature conditions as well as harsh chemical environments. Fortunately HDG can withstand termperatures ranging from -75 degrees F to 392 degrees F and performs well in a pH range of 4.5 to 12.5. In addition to creating a barrier between steel and the envirnoment, zinc has the ability to cathodically protect the substrate metal, even if the coating is damaged. The excellent field performance of a hot-dip galvanized coating provides the customer with a durable and cost-effective product that requires little or no maintenance, despite the size and complexity of the rig.

The size of these structures makes coating maintenance difficult. The pace at which they are being erected, used and then moved to a new location makes maitenance downtime very expensive. HDG provides a longer life span than any other protection plan with little or no maintenance costs which is critical to a driller's success.

Lee C Moore learned years ago about the value of a durable hot-dip galvanized coating for their rugged derricks. Today their rigs are found around the world, some in operation for over 40 years. Detailed maintenance records have been kept on every rig ever built and as a result, Lee C Moore continues to specify hot-dip galvanizing.

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Lee C Moore Beam Leg Derricks are extremely large, sturdy structures.

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These massive pipe rails are an indication of the intended size, strength and durability of a Lee C Moore galvanized derrick.

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A Lee C. Moore derrick rising to the heavens.

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A Hot-dip Galvanized derrick on site.

Project Specifics

Year Galvanized
Tropic Marine
Tulsa, OK United States
Reason for Galvanizing
Coating Durability, Corrosion Performance,
Components Galvanized
I-beams, angle, channel, plate, brackets, fasteners, tube steel
Steel: 200
HDG: 200

Project Members

Lee C. Moore - Lee C. Moore
Dewayne Vogt, P.E. - Dewayne Vogt, P.E.
Member Galvanizer(s)
AZZ Galvanizing - Arkansas
AZZ Galvanizing - Tulsa