Water from low-permeability sediments and land subsidence
The amount of land subsidence or groundwater recovery from compressible confining layers depends upon the specific storage of the strata and the average head change within them. Expressions for the specific storage are obtained from both consolidation theory and conservation principles of compressible flow. Average head changes are identified on a depth-pressure diagram in terms of head changes in adjacent aquifers and are referred to as ''effective-pressure areas.'' The geometry of the effective- pressure area is shown to depend upon the thickness of the compressible strata, the magnitude of artesian pressure, decline, the manner in which the basin is developed, and time. These factors are embodied in equations that quantitatively describe the release of stored water from compressible confining layers resulting from their vertical compression in areas of land subsidence. (22 refs.)
- Research Organization:
- Nevada Univ
- OSTI ID:
- 5917760
- Journal Information:
- Water Resour. Res.; (United States), Vol. 1:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
INTERSTITIAL WATER
RECOVERY
OIL FIELDS
RESERVOIR ENGINEERING
RESERVOIR ROCK
HYDROLOGY
MECHANICAL PROPERTIES
PERMEABILITY
DEFORMATION
FLUID FLOW
FORECASTING
GEOLOGIC STRUCTURES
GROUND SUBSIDENCE
ENGINEERING
GEOLOGIC DEPOSITS
GROUND WATER
HYDROGEN COMPOUNDS
MINERAL RESOURCES
OXYGEN COMPOUNDS
PETROLEUM DEPOSITS
RESOURCES
WATER
020300* - Petroleum- Drilling & Production