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PRCI PR-26-47
- Threshold Pressure in Gas Storage
- Report / Survey by Pipeline Research Council International, 01/01/1970
- Publisher: PRCI
$98.00$195.00
L20170e
University of Michigan
Need: In the early 1950's, attention was turned to the use of underground water sands for storing natural gas in those areas where depleted gas reservoirs were not available. Underground gas storage means that gas is transferred from producing fields to other reservoirs, usually closer to market areas, where it is stored until needed to supplement other natural gas supplies in meeting market requirements. Its primary functions are to meet peak demands of the winter season especially for residential heating and to provide off-peak depositories for pipeline gas. Because underground storage permits fuller utilization of pipeline facilities and more effective gas deliveries to market, it is an important factor in conservation, elimination of flare gas and the development of new markets.
Result: Gas storage in aquifers requires that the reservoir pressure be raised above the original discovery value to inject the gas. Early experiences with aquifer storage operations raised the question of the mechanism by which caprock held natural gas beneath it. At about the same time that aquifers were being developed, it was found advantageous to store gas at pressures above discovery in depleted gas or oil fields. The practice of operating at pressures above discovery gradually developed inquiries into the quality of caprocks and the insitu behavior of gas below the caprock.
Benefit: This report examines the capillary retention phenomena that naturally occurs in caprocks used for natural gas storage, with particular emphasis on threshold displacement pressures.
University of Michigan
Need: In the early 1950's, attention was turned to the use of underground water sands for storing natural gas in those areas where depleted gas reservoirs were not available. Underground gas storage means that gas is transferred from producing fields to other reservoirs, usually closer to market areas, where it is stored until needed to supplement other natural gas supplies in meeting market requirements. Its primary functions are to meet peak demands of the winter season especially for residential heating and to provide off-peak depositories for pipeline gas. Because underground storage permits fuller utilization of pipeline facilities and more effective gas deliveries to market, it is an important factor in conservation, elimination of flare gas and the development of new markets.
Result: Gas storage in aquifers requires that the reservoir pressure be raised above the original discovery value to inject the gas. Early experiences with aquifer storage operations raised the question of the mechanism by which caprock held natural gas beneath it. At about the same time that aquifers were being developed, it was found advantageous to store gas at pressures above discovery in depleted gas or oil fields. The practice of operating at pressures above discovery gradually developed inquiries into the quality of caprocks and the insitu behavior of gas below the caprock.
Benefit: This report examines the capillary retention phenomena that naturally occurs in caprocks used for natural gas storage, with particular emphasis on threshold displacement pressures.