Use of data obtained from core tests in the design and operation of spent brine injection wells in geopressured or geothermal systems
The effects of formation characteristics on injection well performance are reviewed. Use of data acquired from cores taken from injection horizons to predict injectivity is described. And methods for utilizing data from bench scale testing of brine and core samples to optimize injection well design are presented. Currently available methods and equipment provide data which enable the optimum design of injection wells through analysis of cores taken from injection zones. These methods also provide a means of identifying and correcting well injection problems. Methods described in this report are: bulk density measurement; porosity measurement; pore size distribution analysis; permeability measurement; formation grain size distribution analysis; core description (lithology) and composition; amount, type and distribution of clays and shales; connate water analysis; consolidatability of friable reservoir rocks; grain and pore characterization by scanning electron microscopy; grain and pore characterization by thin section analysis; permeability damage and enhancement tests; distribution of water-borne particles in porous media; and reservoir matrix acidizing effectiveness. The precise methods of obtaining this information are described, and their use in the engineering of injection wells is illustrated by examples, where applicable. (MHR)
- Research Organization:
- Completion Technology Co., Houston, TX (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5086277
- Report Number(s):
- SAND-80-7047
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BRINES
REINJECTION
WASTE DISPOSAL
DRILL CORES
LITHOLOGY
PERMEABILITY
POROSITY
INJECTION WELLS
DESIGN
DENSITY
DISTRIBUTION
FLOW RATE
GEOPRESSURED SYSTEMS
GEOTHERMAL SYSTEMS
GRAIN SIZE
OPERATION
POROUS MATERIALS
CRYSTAL STRUCTURE
MANAGEMENT
MATERIALS
MICROSTRUCTURE
PHYSICAL PROPERTIES
SIZE
WASTE MANAGEMENT
WELLS
Geothermal Legacy
150600* - Geothermal Energy- Environmental Aspects
150904 - Geothermal Engineering- Geothermal Reservoir & Well Performance