http://www.bloomberg.com/apps/news?pid=20601207&sid=abGF4MyUEKxEApril 8 (Bloomberg) -- Petroleos Mexicanos, the state oil company, may recover an extra 3 billion barrels from its Cantarell field, or 20 percent more than planned, by using a technology that extracts hard-to-reach crude.
Pemex would inject so-called liquid foam to draw out oil from Cantarell’s rock under the process, Heber Cinco Ley, director of the Mexican Petroleum Institute, said in an interview April 6. The technology, which may be ready in three years, would shake loose oil that has seeped back into the rock walls after the field’s pressure fell, he said.
The company’s output fell at its fastest rate since 1942 last year because of slowing production at Cantarell, which has lost pressure after producing almost a third of Pemex’s oil during the past three decades. The company expects to produce only half the 30 billion barrels Cantarell holds. Three billion barrels is enough to supply the U.S. for six months.
“We want to be able to extend this technology to other mature fields in Mexico,” said Cinco Ley, a former deputy director for exploration and production at Mexico City-based Pemex who holds a doctorate in petroleum engineering from Stanford University. “There is still a lot of oil there.”
(this is not a good sign. Mexico's Cantarell field has been in decline for the last 8 years. If they are trying to get at the deep stuff, it's time to really start worrying. The deep stuff is the sour heavy sulfur ridden vary expensive and hard to refine crap oil. This is the stuff huge cargo ships use to run their engines aka bunker fuel. You can refine it into workable oil, but it comes at a massive expense of energy in. This is a article is a wicked spin on the reality of the situation)