Anelastic Strain Recovery and The Kaiser Effect Retention Span in the Carnmenellis Granite, U.K.

Barr, S. P.; Hunt, Dan

doi:10.1007/s006030050031

Cited by 21 publications

(10 citation statements)

References 7 publications

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“…Laboratory studies on the physical mechanism involved in ASR are rare (El Rabaa and Meadows 1986;Matsuki 1991;Wang et al 1997a;Barr and Hunt 1999). While most of the authors focussed on studies with natural rock material, Wang et al (1997) did a systematic study on strain recovery response of synthetic sandstones cemented in the laboratory with different applied stress scenarios.…”

Section: Anelastic Strain Recoverymentioning

confidence: 97%

“…While Blanton (1983) started off with a two-element model, Matsuki (1991) already used a four-element substance. Barr and Hunt (1999) applied more complex rheological models like the Generalized Kelvin substance or the Burgers model in order to explain strain-recovery curves and the Kaiser Effect retention spans (Sect. 8.2) in Carnmenellis Granite, UK.…”

Section: Anelastic Strain Recoverymentioning

confidence: 99%

“…In rock salt, however, the laboratory KE could be observed with time delays over 2 weeks (Filimonov et al 2001), and in granite up to delays of 300 days (Shin and Kanagawa 1995). The KE loss over time can be quantified by the Kaiser effect retention span (KERS) as introduced by Barr and Hunt (1999) while investigating Carnmenellis granite from UK. The KE degradation in the course of time is attributed to ASR (Michihiro et al 1992;Barr and Hunt 1999).…”

Section: Kaiser Effectmentioning

confidence: 99%

“…The KE loss over time can be quantified by the Kaiser effect retention span (KERS) as introduced by Barr and Hunt (1999) while investigating Carnmenellis granite from UK. The KE degradation in the course of time is attributed to ASR (Michihiro et al 1992;Barr and Hunt 1999). This " Alzheimer " in KE of rock is sensitive to PMS.…”

Section: Kaiser Effectmentioning

confidence: 99%

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Stress Field of the Earth’s Crust

2010

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Section: Anelastic Strain Recoverymentioning

confidence: 97%

Section: Anelastic Strain Recoverymentioning

confidence: 99%

Section: Kaiser Effectmentioning

confidence: 99%

Section: Kaiser Effectmentioning

confidence: 99%

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Stress Field of the Earth’s Crust

2010

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“…From a practical point of view, the Kaiser effect is one of the most important and interesting manifestations of the fundamental ability of rocks and materials to accumulate, to retain and to reproduce information on the peak stresses and strains experienced in the past [1][2][3]. This ability called 'stress memory' or 'endpoint-memory' has attracted attention as a possible basis for stress measurement in rocks [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study of the Kaiser effect in cyclic Brazilian tests with disk rotation

Lavrov

Vervoort

Wevers

et al. 2002

International Journal of Rock Mechanics and Mining Sciences

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Sensitivity of the Kaiser effect to the deviations of the directions of s 1 -principal stress experienced by rock in successive loading cycles has an important impact on the application of this effect for stress measurements in rocks. The paper presents an analysis of the gradual Kaiser effect degradation with increasing deviation of the principal stress axes between loading cycles in Brazilian experiments. An experimental study was carried out to investigate the Kaiser effect in cyclic loading tests of disk specimens of a brittle limestone in diametrical compression with acoustic emission measurement. Tests were performed in which disks were loaded in two cycles without or with rotations between successive cycles. The rotation angle varied between 01 and 901. The Kaiser effect became gradually less pronounced with increasing rotation angle, but remained detectable for angles o101. Rotation by more than 101 resulted in complete disappearance of the effect. These experimental results were confirmed by numerical simulations using the displacement discontinuity method. r

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Unreliable determination of in situ stress orientation by cross multipole array acoustic logging in fractured shale reservoirs

Yang

Liu

et al. 2023

Energy Science & Engineering

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With the development of shale gas exploration in China, the use of conventional logging tools has been introduced, and cross multipole array acoustic logging tools have gradually been used to determine the stress orientation in shale. The direction of fast shear waves (FSWs) is generally parallel to the horizontal maximum principal compression stress (SHmax). However, the azimuth of FSWs is found to be parallel to the main strike (but not to the SHmax) direction of structural fractures in shale reservoirs. Outcrop and image logging data indicate that the natural fractures in this area strike NE‒SW. If the shear wave anisotropy is caused by only the stress around the borehole and the FSWs are known to be NE‒SW, SHmax should be parallel to NE‒SW; however, according to statistics of land movement in adjacent areas, anelastic strain recovery, earthquake focal mechanism, borehole breakouts, hydraulic fracturing data, deviated well data, and drilling‐induced fracture data in local regions, SHmax is oriented in the NW‒SE direction, and the directions of FSWs are generally parallel to the structural fracture direction. This contradiction indicates that the development of structural fractures may affect the orientation of FSWs. Therefore, it is not reliable to use XMAC (Cross‐Multipole Array Acoustilog) logging only to determine the direction of in situ stress in fractured shale reservoirs. In addition, the direction of the FSWs in the middle of thick mudstones is NW‒SE, which may represent accurate information about the in situ stress direction.

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Anelastic Strain Recovery and The Kaiser Effect Retention Span in the Carnmenellis Granite, U.K.

Cited by 21 publications

References 7 publications

Stress Field of the Earth’s Crust

Stress Field of the Earth’s Crust

Experimental and numerical study of the Kaiser effect in cyclic Brazilian tests with disk rotation

Unreliable determination of in situ stress orientation by cross multipole array acoustic logging in fractured shale reservoirs

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