As the push into greater water depths gains momentum, how to perform intervention services on wells with subsea trees looms ominously over future development projects. Intelligent completions have been one option to meet part of the challenge, but this technology has matured slowly and has not played a significant factor in deepwater field development decisions to date. Another alternative has been to use a semi-submersible from the existing fleet to move on location and perform the intervention services. While one of the easiest methods, it is definitely not the cheapest. This option depends greatly on availability of a semisubmersible, and if drilling activity experiences an increase, rig availability will decrease and render this solution even more expensive and less likely to happen.
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