Predicting the occurrence of mixed mode failure associated with hydraulic fracturing, part 2 water saturated tests
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Seven water-saturated triaxial extension experiments were conducted on four sedimentary rocks. This experimental condition was hypothesized more representative of that existing for downhole hydrofracture and thus it may improve our understanding of the phenomena. In all tests the pore pressure was 10 MPa and confirming pressure was adjusted to achieve tensile and transitional failure mode conditions. Using previous work in this LDRD for comparison, the law of effective stress is demonstrated in extension using this sample geometry. In three of the four lithologies, no apparent chemo-mechanical effect of water is apparent, and in the fourth lithology test results indicate some chemo-mechanical effect of water.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1215562
- Report Number(s):
- SAND-2015-7808R; 603682
- Country of Publication:
- United States
- Language:
- English
Similar Records
Hydraulic fracturing stress measurements at Yucca Mountain, Nevada, and relationship to the regional stress field
Mechanical behavior of New Mexico rock salt in triaxial compression up to 200 /sup 0/C