Abandoned coal mine stores gas for Colorado peak-day demands
Since 1961, the Leyden Mine, from which 6 million tons of coal had been removed to leave a 150 million cu ft void, has been used for gas storage at 250 psig max pressure, after the hoisting and ventilation shafts had been sealed with concrete, rock, sand, and mud. Following several withdrawal expansions, a design for maximum delivery of 230 million cu ft/day for five days with a pressure drop in the cavern down to 100 psig was developed to satisfy customer requirements for peak shaving. This required redesigning the gathering system by looping large existing lines, eliminating inefficient ones, and drilling additional wells; installing three lightweight 3500-hp Centaur turbine/compressor units from Solar Turbines International to provide the minimum 200 psig compressor discharge pressure needed for gas distribution on peak usage days; and installing Donaldson Co. engine air-inlet silencers on the turbine inlets to reduce noise levels below the public code requirement. In the 1977-78 heating season, the Leyden facility produced 196 million cu ft/day of gas; with continued load growth and well drilling to reduce pressure loss, the maximum design flow rate will be attained.
- Research Organization:
- Public Serv. Co., Colorado
- OSTI ID:
- 6703853
- Journal Information:
- Pipe Line Ind.; (United States), Vol. 49:3
- Country of Publication:
- United States
- Language:
- English
Similar Records
CAES - it's more than hot air
Peak-shaving supplies reach all-time high for '78-'79 winter
Related Subjects
NATURAL GAS
STORAGE FACILITIES
UNDERGROUND STORAGE
NATURAL GAS DISTRIBUTION SYSTEMS
DESIGN
ABANDONED SHAFTS
COAL MINES
COLORADO
COMPRESSORS
PEAK LOAD
PERFORMANCE
ENERGY SOURCES
ENERGY SYSTEMS
FEDERAL REGION VIII
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
MINE SHAFTS
MINES
NORTH AMERICA
SHAFT EXCAVATIONS
STORAGE
UNDERGROUND FACILITIES
USA
035000* - Natural Gas- Storage- (1989-)