Full-scale borehole sealing test in salt under simulated downhole conditions. Volume 1. [Avery Island diapiric salt]
A full-scale borehole sealing test was conducted in Avery Island diapiric salt. The test was performed under simulated in situ stress (15.86 MPa (2300 psi)) and temperature (30/sup 0/C) of a theoretical salt nuclear waste repository. To evaluate the sealing performance and the effect of the grout on the salt, temperature and pressure versus time histories of the grout were measured during the 28-day curing period and subsequent full-scale flow tests. Post-test microscopic tests, physical properties tests, and laboratory permeability tests were conducted on the grout and host rock. Data indicate the grout exothermic reaction was low (<5/sup 0/C) with the expansive stresses in the grout exceeding 11.0 MPa (1595 psi) near the center and 24.8 MPa (3600 psi) at the grout/salt interface. The full-scale flow test conducted over 91 hours resulted in a non-steady-state flow, decreasing with time to approximately 10/sup -6/ darcys. Megascopic and microscopic examinations revealed fluid flow along a small area of the grout/salt interface and through adjacent salt. Laboratory data show a salt permeability in the order of 10/sup -3/ and grout at 10/sup -6/ darcys. Physical and permeability data indicate the salt has anisotropic properties.
- Research Organization:
- Terra Tek, Inc., Salt Lake City, UT (USA)
- DOE Contract Number:
- AC02-83CH10140
- OSTI ID:
- 5525976
- Report Number(s):
- BMI/ONWI-573(1); ON: DE86012040
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
BOREHOLES
CLOSURES
GROUTING
SALT DEPOSITS
CURING
EXPERIMENTAL DATA
FLUID FLOW
HIGH PRESSURE
MEDIUM TEMPERATURE
PERMEABILITY
PRESSURE EFFECTS
STRESSES
TIME DEPENDENCE
CAVITIES
DATA
GEOLOGIC DEPOSITS
INFORMATION
NUMERICAL DATA
580300* - Mineralogy
Petrology
& Rock Mechanics- (-1989)
052002 - Nuclear Fuels- Waste Disposal & Storage
360603 - Materials- Properties