Brine inflow sensitivity study for Waste Isolation Pilot Plant boreholes: Results of one-dimensional simulations
Brine inflow to the Waste Isolation Pilot Plant is important in assessing the performance of the repository, and a mechanistic model is needed for performance calculations. Brine inflow experiments are being conducted, and formation parameters such as the permeability and diffusivity are inferred from these data using a simplified one-dimensional radial, uniform property, single-phase Darcy flow model. This model has met with limited success in interpreting some of the recent data. Much of the data could not be satisfactorily fit with the above model because the brine inflow rate increases with time, so a more mechanistic model is being developed based on the TOUGH and TOUGH2 computer codes. These codes are much more complex than the simplified model and include a number of parameters that have not been measured. Therefore, a one-dimensional brine inflow sensitivity study has been undertaken to evaluate the importance of a number of these parameters in influencing the behavior of brine inflow to open boreholes. In addition, two-phase conditions have been included in the study, and the sensitivity of gas inflow rates and the formation pressure and saturation distributions after 1 year are examined. These results should be helpful in determining what additional measurements are necessary to assist in the development of a more mechanistic brine inflow model.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 10121585
- Report Number(s):
- SAND--91-2296; ON: DE93007422
- Country of Publication:
- United States
- Language:
- English
Similar Records
Test plan: Brine inflow and related tests in the brine inflow room (Room Q) of the Waste Isolation Pilot Plant (WIPP)
Test plan: Brine inflow and related tests in the brine inflow room (Room Q) of the Waste Isolation Pilot Plant (WIPP)
Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
58 GEOSCIENCES
580000
ALPHA-BEARING WASTES
BOREHOLES
BRINES
COMPILED DATA
COMPRESSIBILITY
DIAGRAMS
DIFFUSION
FLOW RATE
FLUID FLOW
GEOSCIENCES
MATHEMATICAL MODELS
PERFORMANCE
PERMEABILITY
POROSITY
RADIONUCLIDE MIGRATION
SALT DEPOSITS
TWO-PHASE FLOW
UNDERGROUND DISPOSAL
WASTE DISPOSAL AND STORAGE
WIPP