.18 Advances in horizontal drilling and hydraulic fracturing have unlocked gas resources in ―unconventional‖ reservoirs, such as tight sands, coal bed methane, and shale rock rich in organic materials.
.18 Advances in horizontal drillingand hydraulic fracturing have unlocked gas resources in ―unconventional‖ reservoirs, such astight sands, coal bed methane, and shale rock rich in organic materials.