SciTech Connect

Title: Water from low-permeability sediments and land subsidence

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.)
Authors: ;
Publication Date:
OSTI Identifier:OSTI ID: 5917760
Resource Type:Journal Article
Resource Relation:Journal Name: Water Resour. Res.; (United States); Journal Volume: 1:4
Research Org:Nevada Univ
Country of Publication:United States
Language:English
Subject: 02 PETROLEUM; 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