Channelling oil and gas

Researchers have shown how giant channels on the ocean floor could point the way to finding new oil and gas reserves.

The research, led by Ian Kane of Leeds University, examined how these channels, similar to rivers, but deep underwater, build up to scar the ocean floor. And he discovered their formation follows a very different pattern to that of rivers on land.

The findings will be significant in helping oil and gas companies get the most out of the ground.

'The sands and gravels deposited by these sub-sea giants have in many cases trapped valuable accumulations of fossil fuels,' said Kane.

Such fields are already being tapped by deep-water production rigs off Brazil, West Africa, the Nile Delta, Mexico and Indonesia – but knowing where to drill is an inexact science.

Kane added: 'What the companies have to do is make estimations using very limited data. Anything that can give them a clearer picture of where to find the oil and gas will be very valuable.'