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- Removing methane (degasification) from the Pittsburgh coalbed in northern West Virginia
- Degasification of the Mary Lee coalbed near Oak Grove, Jefferson County, Ala.,by vertical borehole in advance of mining
- Rotary drilling holes in coalbeds for degasification
- Hydraulic stimulation increases degasification rate of coalbeds
- Determining cleat orientation of deeper coalbeds from overlying coals
- Methane gas content of the Mary Lee group of coalbeds, Jefferson, Tuscaloosa, and Walker Counties, Ala.