shale gas industry / gas production / gas present / gas resource / transportation / shale gas / gas migration / low gas prices / potential gas bearing shale / local gas prices / adsorbed gas / technology development / remote shale gas resources / natural gas / past shale gas / generated gas / energy sources / treatment site / cement / oil and gas production / gas markets / shale gas production / gas extraction showing horizontal drilling / oil / shale gas reservoirs / natural gas resources / natural gas liquefaction plants / /
Shale gas production Shale gas: porosity, permeability and production More than half of the Earth’s sedimentary rock is made up of shale, a fine-grained rock formed over time from compressed deposits of mud, silt, clay