Longer wells
Lining wells with a flexible metal casing helps a well to stretch further.
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Drilling
Oil and gas are becoming harder to access. Innovative drilling techniques are opening up resources by keeping costs down, raising production and tapping into new resources.
Underbalanced drilling
Drilling with lower pressure can help prevent damage to oil reservoirs and increase production.
A well production line
Smaller, mobile rigs for each stage of drilling a well, along with automated tasks, could help speed up the drilling process and bring down costs.
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23 Nov 2010 - Engineers have found a way to make even the longest, most powerful drills turn smoothly as they unlock new energy resources.