Coal Bed Methane Product Water Management and Disposal Economics in the Rocky Mountain Region

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Coal Bed Methane Product Water Management and
Disposal Economics in the Rocky Mountain Region

• Jim Bauder and Krista Pearson, Montana State
  University
• Source Boysen et al., 2002

File CBM ECON RMRl.ppt
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CBM Produced Water in the Rocky Mountain Region

• More than 3 billion barrels of produced water in
  2000
• Wyoming 1,901,087,161 (63 of total produced
  water)
• New Mexico 593,053,102
• Colorado 250,986,180
• Utah 145,213,852
• Montana 113,365,939
• Based on 2000 Production Data, 42 gallons/bbl

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CBM Production in the Powder River Basin
Table 1. Gas and Water Production Volumes for
the Powder River Basin (2000 Production Data)
Location Wells BBL Water MCF Gas BBL Water/MCF Gas BBL/Well/Year
Montana 315 19,164,246 8,321,028 2.303 60,839 (7.5 acre-feet/well)
Wyoming 6,294 331,722,260 146,494,797 2.264 52,738 (6.5 acre-feet/well)
(After Boysen et al., 2002)
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CBM Production in the San Juan Basin
Table 2. Gas and Water Production Volumes for
the San Juan Basin (2000 Production Data)
Location Wells BBL Water MCF Gas BBL Water/MCF Gas BBL/Well/Year
Colorado 1,844 25,303,772 403,883,537 0.063 13,722 (1.69 acre-feet/well)
New Mexico 18,252 22,125,324 1,046,109,179 0.021 1212 (0.15 acre-feet/well)
(After Boysen et al., 2002)
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CBM Production in the Raton Basin
Table 3. Gas and Water Production Volumes for
the Raton Basin (2000 Production Data)
Location Wells BBL Water MCF Gas BBL Water/MCF Gas BBL/Well/Year
Colorado 613 54,551,602 85,841,189 0.635 88,991 (10.9 acre-feet/well)
New Mexico 82 2,116,464 1,021,807 2.071 25,811 (3.2 acre-feet/well)
(After Boysen et al., 2002)
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CBM Product Water Disposal Costs

• Conservative disposal costs 0.01 - 0.04/bbl
• High range disposal costs 2.00/bbl
• Injection costs 0.20/bbl
• Estimates of disposal costs are based on a
  survey conducted by BC Technologies, Ltd
  (Laramie, Wyoming) of oil and gas leasees in the
  Powder River, San Jaun, Raton and Greater Green
  River Basin.

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For more information

• Montana State University Water Quality and
  Irrigation Water Management Web Site Coal Bed
  Methane Available at http//waterquality.montana.
  edu/docs/methane.shtml
• Strategic Produced Water Management and Disposal
  Economics in the Rocky Mountain Region
• Available at http//www.gwpc.org/Meetings/PW20
  02/Papers/Deidre_B_Boysen_PWC2002.pdf