Energy policy — oil and gas: Coalbed methane produced water update

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From The Trinidad Times (Randy Woock):

The Colorado Oil and Gas Conservation Commission’s (COGCC) annual report to the Water Quality Control Commission and Water Quality Control Division of the Colorado Department of Public Health and Environment stated that the 2,055,900,000 gallons (6,309.3 acre feet) of produced water extracted by CBM wells in Las Animas County comprised 89 percent of the region’s produced water in the first half of 2010. The produced water amounts were reported in terms of barrels, with each of the 48,950,000 barrels extracted in Las Animas County equivalent to 42 gallons. A total of 55 million barrels of produced water were extracted by CBM operations in southeastern Colorado during the first half of last year. “There’s still numbers coming in for 2010,” COGCC Environmental Manager Debbie Baldwin said. “Those final numbers (for a 2010 produced water total) haven’t been published yet.”[…]

The most recent produced water figures are a drastic decline from previous years. The fiscal year (FY) 2009-2008 report showed 462,4746,197.4 gallons of produced water generated from Las Animas County wells, and the FY 2007-2008 reported 6,454,568,642.3 gallons of produced water in the area, though that amount was from a combined Las Animas and Huerfano counties calculation. The FY 2006-2007 report showed 7,127,366,514 gallons of produced water from CBM wells in Las Animas and Huerfano counties…

“Approximately 70 billion cubic feet of gas was produced in this region (southeastern Colorado) during the first six months of 2010, with 84 percent of the gas produced from the 2,906 CBM wells in Las Animas County,” the COGCC report stated. “Approximately 212 drilling permits were issued for oil and gas wells in southeastern Colorado in 2010. Approximately 82 percent of the 212 were issued in four counties (41 percent in Las Animas, 23 percent in Lincoln, 11 percent in Fremont, and 8 percent in Cheyenne).”

More coalbed methane coverage here and here.

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