Abstract

In mature oil and gas fields particularly in the Middle East, India, Gulf of Mexico, West Africa and Asia, a specific footprint is required due to earlier campaigns. The key reference is the LeTourneau-116 design. With its specific footprint, it is the most widely used jack-up design in these regions. The CJ43 drilling jack-up, based on its successful predecessors, is the modern replacement and sets a new standard for jack-up drilling rigs used in mature oil and gas fields.

Drilling technology has evolved over the years. The focus has been on drilling equipment reliability, mechanization, partial automation and advanced well control. However, when reviewing the overall jack-up technology – excluding the drilling related equipment – a large part of what has been ordered recently resembles the same design philosophy of thirty to forty years ago. No significant changes on the jack-up design to improve its capabilities in terms of uptime, efficiency, material handling, maintenance, redundancy of critical systems and elements to improve human life on board.

But, when applying innovative technology, a more modern jack-up design such as the CJ43 can be shaped which delivers operational benefits to owners and operators in terms of lower OPEX and higher operational flexibility.

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