Generalized relations between static and dynamic indices of rock deformability

Savich, A. I.

doi:10.1007/bf01426714

Cited by 9 publications

(7 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Measured elastic moduli and rheological parameters. As it is well known, the static elastic moduli of rocks measured in laboratory are different from the dynamic ones determined from wave propagation speeds [17,18,19,20,21,22]. The difference is usually attributed to various heterogeneities, like microcracks, porosity and grain structure.…”

Section: 21mentioning

confidence: 99%

See 1 more Smart Citation

Long term measurements from the Mátra Gravitational and Geophysical Laboratory

Ván

Barnaföldi

Bulik

et al. 2019

Eur. Phys. J. Spec. Top.

View full text Add to dashboard Cite

of the long term data taking, related to one of the proposed next generation ground-based gravitational detector's location is presented here. Results of seismic and infrasound noise, electromagnetic attenuation and cosmic muon radiation measurements are reported in the underground Matra Gravitational and Geophysical Laboratory near Gyöngyösoroszi, Hungary. The collected seismic data of more than two years is evaluated from the point of view of the Einstein Telescope, a proposed third generation underground gravitational wave observatory. Applying our results for the site selection will significantly improve the signal to nose ratio of the multi-messenger astrophysics era, especially at the low frequency regime.

show abstract

Section: 21mentioning

confidence: 99%

“…The influence of this property for Newtonian noise should be investigated. [17,18,19,20,21,22]. The difference is usually attributed to various heterogeneities, like microcracks, porosity and grain structure.…”

Section: The Geophysical Environment Of Mgglmentioning

confidence: 99%

Long term measurements from the Mátra Gravitational and Geophysical Laboratory

Ván

Barnaföldi

Bulik

et al. 2019

Eur. Phys. J. Spec. Top.

View full text Add to dashboard Cite

show abstract

“…The earliest suggestion that there is a discrepancy between the dynamic (E d ) and static (E s ) elastic moduli was made by Zisman [4] at Harvard University. After that, many researchers conducted some experimental or analytical studies, and most of the results showed that the dynamic elastic modulus (E d ) is larger than the static elastic modulus (E s ) [5][6][7][8][9][10][11][12][13][14]. There is an acceptable linear or nonlinear relationship between the dynamic (E d ) and static (E s ) elastic moduli.…”

Section: Introductionmentioning

confidence: 99%

“…Utilizing a large number of comparative studies on experimental data, the Institute of Geology of the Chinese Academy of Sciences proposed a linear correlation for the estimate of static elastic modulus from dynamic elastic modulus. However, this equation is only suitable for microcline and granite [7][8][9][24][25][26][27][28][29]. King [7] established a linear correlation between the dynamic and static parameters of igneous and metamorphic rocks.…”

Section: Introductionmentioning

confidence: 99%

A Comparison of the Relationship between Dynamic and Static Rock Mechanical Parameters

Shen,

Gao,

Jia

2024

Applied Sciences

View full text Add to dashboard Cite

The rock’s mechanical properties play an important role in the whole process of conventional and unconventional oil and gas exploration and progression. At present, there are two approaches to determining the mechanical parameters. One is to measure the rock sample in the laboratory (i.e., static elastic modulus Es). The other is to obtain parameters by geophysical logging data (i.e., dynamic elastic modulus Ed). In general, static parameters can more accurately reflect the mechanical properties of rock under actual geo-stresses. At the same time, their determinations are difficult. Therefore, one of the best methods is to establish the correlation between the dynamic and static parameters. This paper investigates the relation between the dynamic and static parameters using different methods for various rocks in the literature. Based on the relationship of Es=aEd+b, a correction between a and b is proposed using the multinomial form a=0.67+0.101b−0.006b2+0.0001b3. It is found that the Es can be derived from the Ed just when the parameter b is known. In terms of different types of rocks, for igneous and metamorphic rocks, the best correlation between Es and Ed obeys the power-law correlation; for sedimentary rocks, there are linear and logarithmic correlations. Theoretically, the difference between dynamic and static elastic moduli can be attributed to microcracks and pores within rocks. This study can provide guidance for engineers to predict the desired static parameters precisely using logging or seismic data.

show abstract

“…In each of the above cases, the different rock deformations scales as well as the distinct frequency range of load -unload-reload cycles, make non-trivial the dynamic-static equivalence problem. For the Brazilian Pre-Salt layer, Santos Basin, these relations were obtained from mechanical tests carried out on carbonate reservoirs core samples and for the remaining layers: Salt and Pos-Salt, were used scientific journals and reference sources relations [2] due to absence of core samples rocks from these sections.…”

Section: Introductionmentioning

confidence: 99%