Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Miroslav Brajanovski"'
Autor:
Miroslav Brajanovski
Publikováno v:
Science China Physics, Mechanics and Astronomy. 54:1937-1942
I present an algorithm that uses cross-dipole wireline data only in order to estimate the HTI stiffness tensor for sandstone formations under in-situ asymmetric lateral (azimuthal) stress conditions. The algorithm is based on the generalization of te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b5997cffa768bb70f7a3a99ac910fae
https://doi.org/10.1007/s11433-011-4525-4
https://doi.org/10.1007/s11433-011-4525-4
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c4422902fa5379b43b0857c5e2b3c13
https://doi.org/10.1190/1.3552703
https://doi.org/10.1190/1.3552703
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6448e0fdc44892007fe54e5ad05f9c5
https://doi.org/10.1111/j.1365-2478.2010.00917.x
https://doi.org/10.1111/j.1365-2478.2010.00917.x
Publikováno v:
Science China Physics, Mechanics and Astronomy. 53:1383-1387
In this work we interpret the data showing unusually strong velocity dispersion of P-waves (up to 30%) and attenuation in a relatively narrow frequency range. The cross-hole and VSP data were measured in a reservoir, which is in the porous zone of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f5bc59537f7db5ad7e1eb1d124d462e
https://doi.org/10.1007/s11433-010-3205-0
https://doi.org/10.1007/s11433-010-3205-0
Autor:
Tobias M. Müller, Miroslav Brajanovski, Robert J. Galvin, Boris Gurevich, Julianna Toms-Stewart
Publikováno v:
Geophysical Prospecting. 57:225-237
Natural fractures in hydrocarbon reservoirs can cause significant seismic attenuation and dispersion due to wave induced fluid flow between pores and fractures. We present two theoretical models explicitly based on the solution of Biot's equations of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a476fb7d35a54a74e1698630bc73d399
https://doi.org/10.1111/j.1365-2478.2009.00785.x
https://doi.org/10.1111/j.1365-2478.2009.00785.x
Publikováno v:
The Leading Edge. 26:1162-1168
The importance of natural fractures for development and production of hydrocarbon reservoirs requires little justification. While in clastic reservoirs fractures can cause permeability anisotropy and thus affect field development, in carbonates and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a5def1daa87e793b157da34ce6f0ebf
https://doi.org/10.1190/1.2780787
https://doi.org/10.1190/1.2780787
Publikováno v:
Geophysical Journal International. 166:574-578
SUMMARY We analyse compressional wave attenuation in fluid saturated porous material with porous inclusions having different compressibilities and very different spatial scales in comparison with the background. Such a medium exhibits significant att
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0483337f6e58f9c0cf0117499f8c6c7c
https://doi.org/10.1111/j.1365-246x.2006.03068.x
https://doi.org/10.1111/j.1365-246x.2006.03068.x
Publikováno v:
Geophysical Journal International. 163:372-384
SUMMARY Fractures in a porous rock can be modelled as very thin and highly porous layers in a porous background. First, a dispersion equation for a P wave propagating in periodically layered poroelastic medium is obtained using propagator matrix appr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39b8cfc41f4535a3880ce921d2437668
https://doi.org/10.1111/j.1365-246x.2005.02722.x
https://doi.org/10.1111/j.1365-246x.2005.02722.x
Autor:
Miroslav Brajanovski, Boris Gurevich
Publikováno v:
ASEG Extended Abstracts. 2003:1-5
One of the main issues in the characterization of any reservoir is the ability to predict the effect of fluid properties on seismic characteristics. This effect is studied by modelling fractures as very thin and highly porous layers in a porous backg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f2e42cb5bc3ecd3deb997fd45273c4f
https://doi.org/10.1071/aseg2003ab016
https://doi.org/10.1071/aseg2003ab016
Autor:
Tobias M. Müller, Miroslav Brajanovski
Publikováno v:
ASEG Extended Abstracts. 2007:1-3
A conceptually simple superposition model is presented for dispersion and attenuation of compressional waves in fractured porous rocks that are saturated by a mixture of liquid and gas. These two different types of heterogeneities are described by fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a533b9c75a920f62a2f4f3965b66c6ff
https://doi.org/10.1071/aseg2007ab178
https://doi.org/10.1071/aseg2007ab178