Recent advances in drilling technologies have allowed some operators to re-evaluate the economic viability of developing unconventional low permeability reservoirs that had been previously discounted due to poor production performance.CDX Gas,LLC of Dallas,Texas has developed a patented drilling system that has dramatically enhanced production recoveries from tight coals and shales.The Z-Pinnate Drilling and Completion Technology?(Pinnate Technology)employs horizontal drilling techniques in a multi-well pattern that create an efficient and environmentally friendly recovery method.CDX developed its Pinnate Technology during the mid 1990's as an extension of the underground horizontal drilling operations for coal seam degasification in advance of mining at the US Steel Company Pinnacle coal mine in Pineville, WV
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