jueves, noviembre 02, 2006

MÁS NOTÍCIAS ENERGÉTICAS

Optimismo que no falte.

Pese a que algunos apocalíticos, profesionales del mal agüero, nos dicen que las reservas de petróleo se acaban, el ingenio del ser humano les pone una vez más en su lugar.

Hace unos día comenté sobre el proceso Bergius para obtener crudo a partir del lignito.
Hoy os pongo una notícia acerca de empresas petroleras que solicitan autorización para producir petróleo a partir de depósitos de esquistos de petóleo (oil shale).

Imagen


En la medida que el precio del crudo ha subido enormemente y la tecnología para obtener hidrocarburos a partir de los esquistos de petróleo se ha desarrollado en los últimos años, ésta vuelve a ser una fuente viable de energía.

Algunos párrafos del artículo:

" But with crude oil above $ 66 a barrel at the close of trading Tuesday, oil shale is a promising alternative to crude. The Green River shale deposits in Colorado, Utah and Wyoming are estimated to contain 1.5 trillion to 1.8 trillion barrels of oil, and while not all of it can be recovered, half that amount is nearly triple the proven oil reserves of Saudi Arabia."

" Exxon Mobil, Shell and Chevron are among six companies that will develop an in-situ technology to extract shale oil, Feeney said. Two other companies - Natural Soda Inc. and Kennecott Exploration Co. - will use a traditional process in which shale is mined, crushed and then heated in giant ovens called retorts to extract the oil.

Shell is a pioneer of the in-situ process, in which it drills holes and inserts heaters in target underground zones to slowly heat the shale layers.

Once the shale is sufficiently heated, a chemical reaction starts and releases the lighter hydrocarbons, which rise. The heavier hydrocarbons remain within the formation. The lighter hydrocarbons, almost a gasolinelike product, are subsequently pumped from the ground through conventional means.

The advantage to in-situ is that it eliminates the problem of waste disposal and enables higher recovery of oil, Terry O'Connor, Shell's vice president of external and regulatory affairs, has said."


Nada nuevo o sorpredente para los que sabemos que la materia y la energía ni se crean ni se destruyen sino que sólo se transforman. Para todo lo demás: tecnología y cerebro.