Research Article
Determining Triaxial Stress Sensitivity of Oil Reservoir Rocks without Fluid Flooding
Table 2
Data of deformation and volumetric strain under different axial stress.
| | Confining stress (MPa) | Axial stress (MPa) | Radial deformation | Axial deformation | Radial strain | Axial strain | Volumetric strain |
| | 2 | 2 | -5.8080-03 | 1.5236-02 | -2.2866-04 | 3.7995-04 | 8.3705-04 | | 4 | 4 | -9.0040-03 | 2.3964-02 | -3.5449-04 | 5.9761-04 | 1.3060-03 | | 6 | 6 | -1.1410-02 | 3.1008-02 | -4.4921-04 | 7.7327-04 | 1.6708-03 | | 8 | 8 | -1.3538-02 | 3.7248-02 | -5.3299-04 | 9.2888-04 | 1.9936-03 | | 10 | 10 | -1.5528-02 | 4.3108-02 | -6.1134-04 | 1.0750-03 | 2.2960-03 | | 13 | 13 | -1.8232-02 | 5.1420-02 | -7.1780-04 | 1.2823-03 | 2.7155-03 | | 16 | 16 | -2.0722-02 | 5.9676-02 | -8.1583-04 | 1.4882-03 | 3.1167-03 | | 19 | 19 | -2.2960-02 | 6.8996-02 | -9.0394-04 | 1.7206-03 | 3.5245-03 | | 22 | 22 | -2.5042-02 | 7.7160-02 | -9.8591-04 | 1.9242-03 | 3.8912-03 | | 25 | 25 | -2.7950-02 | 6.5032-02 | -1.1004-03 | 1.6217-03 | 3.8178-03 | | 30 | 30 | -2.8386-02 | 1.1482-01 | -1.1176-03 | 2.8634-03 | 5.0909-03 | | 35 | 35 | -3.0738-02 | 1.2770-01 | -1.2102-03 | 3.1844-03 | 5.5956-03 | | 40 | 40 | -3.2838-02 | 1.4039-01 | -1.2928-03 | 3.5009-03 | 6.0759-03 | | 45 | 45 | -3.4714-02 | 1.5415-01 | -1.3667-03 | 3.8441-03 | 6.5651-03 | | 50 | 50 | -3.6462-02 | 1.6672-01 | -1.4355-03 | 4.1576-03 | 7.0146-03 | | 55 | 55 | -3.8830-02 | 1.7214-01 | -1.5287-03 | 4.2927-03 | 7.3347-03 | | 60 | 60 | -3.9602-02 | 1.8980-01 | -1.5591-03 | 4.7332-03 | 7.8343-03 | | 65 | 65 | -4.1014-02 | 2.0234-01 | -0.001614724 | 0.005045985 | 0.008256544 |
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