Zobrazeno 1 - 10
of 37
pro vyhledávání: '"D. Nadri"'
Publikováno v:
GEOPHYSICS. 80:A19-A24
A novel inversion method for the laboratory determination of Thomsen’s [Formula: see text] anisotropy parameter on cylindrical rock specimens from ultrasonic data has been recently reported in the literature. We further assessed this method through
Publikováno v:
ASEG Extended Abstracts. 2013:1-4
The Gippsland Basin is a potential site for CO2 storage which is dependent on the regional top seal in providing secure subsurface containment. Earlier investigations confirmed the containment potential although natural leakage of hydrocarbons was lo
Publikováno v:
ASEG Extended Abstracts. 2012:1-4
This paper presents a processing workflow to attenuate the strong tube waves from VSP surveys acquired in Perth, Western Australia. An array of 24 hydrophones spaced at 10 metre intervals is attached to a cable run down the borehole. The hydrophones
Estimation of the anisotropy parameters of transversely isotropic shales with a tilted symmetry axis
Publikováno v:
Geophysical Journal International. 190:1197-1203
SUMMARY This paper reports a new approach for the estimation of Thomsen anisotropy parameters and symmetry axis orientation from ultrasonic P-wave traveltime measurements on transversely isotropic shale samples of arbitrary geometry. This approach ca
Publikováno v:
GEOPHYSICS. 76:WA91-WA100
Our aim is to understand the stress-dependent seismic anisotropy of the overburden shale in an oil field in the North West Shelf of Western Australia. We analyze data from measurements of ultrasonic P-wave velocities in 132 directions for confining p
Publikováno v:
Geophysical Prospecting. 60:103-116
The aim of this paper is to understand the seismic anisotropy of the overburden shale in an oilfield in the North West Shelf of Western Australia. To this end, we first find the orientation of the symmetry axis of a spherical shale sample from measur
Publikováno v:
The Leading Edge. 29:808-813
Small-scale changes in rock properties, such as those resulting from centimeter-scale depositional layering, are usually undetectable in standard borehole logs (Murphy et al., 1984). Even high-resolution logs with a small sampling interval (e.g., 2 i
Publikováno v:
Proceedings.
In this study, we analyse the accuracy of layer-stripping method to use P-wave reflection traveltimes in transverse isotropic media with vertical axis of symmetry (VTI) to estimate interval anisotropic parameters that are required for seismic process
Publikováno v:
Proceedings.
In this study we have quantified the accuracy of six most common non-hyperbolic traveltime approximations for P-waves in VTI media in terms of medium anisotropy and ratio of the maximum source offset to reflector depth. Our analysis is based on the i
Publikováno v:
Scopus-Elsevier
In this paper we present a new approach to the estimation of Thomsen anisotropy parameters from laboratory data on cylindrical rock samples. Using tomography-style transducers array, ultrasonic P-wave ray velocities are measured on a transversely iso