Shale gas and tight oil from low permeability reservoirs have provided a new lease on life for U.S. oil and gas production. (resilience.org)
That same technology is now being used on old exhausted oil reserves to recover oil, and can recover oil again from low permeability reservoirs. (thefinancialblogger.com)
One reason the overlap between shale gas and sequestration regions is so great, they said, is that shale formations typically have very low permeability in the first place. (scientificamerican.com)