ROUGHLY 75 PER cent of rigs in use have the potential for an extended lifetime via upgrades. By improving a rig's power and control systems, its drilling performance and operation can increase dramatically. Anyone in the industry is likely familiar with the frustration of an old or busted rig. Like relying on a beat-up old Ford truck, trying to squeeze as much life out of an old rig simply will not suffice for long. Old rigs eventually give out, so it is much better to reflect on how we can extend the life of such equipment.
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