A gravity-drainage hydrocarbon recovery method is provided to produce oil and gas from subterranean formations. A substantially horizontal high-permeability web is created at the bottom portion of an oil reservoir. The web is connected to a production well. The high-permeability web is fabricated by...http://www.google.de/patents/US6012520?utm_source=gb-gplus-sharePatent US6012520 - Hydrocarbon recovery methods by creating high-permeability webs
