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Keywords: fluid pressure
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Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426212
... coupled fluid pressure diffusion processes of mesoscopic flow between gas and brine and fluid flow between brine and outer boundary. We have demonstrated that the boundary conditions significantly control the seismic wave dispersion and attenuation characteristics in partially saturated rocks. The drained...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3424536
... compressibility fluid pressure notation gassmann reservoir characterization pore pressure exploration geophysicist 10 additional parameter university poroelastic parameter upstream oil & gas undrained compressibility seg international exposition dependence equation biot...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17737040
.... , and W. W. Rubey , 1959 , Role of fluid pressure in mechanics of overthrust faulting : Bulletin of the Seismological Society of America , 70 , 115 – 166 , 10.1130/0016-7606(1959)70[115:ROFPIM]2.0.CO;2 . Jewett , J. M. , 1951 , Geologic structures in Kansas: A review...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17792031
... Continuous Active-Source Seismic Monitoring (CASSM), with cross-well geometry, to measure variation in seismic coda amplitude, as a consequence of effective stress change (in the form of changes in pore fluid pressure). To our knowledge, the presented results are the first example of such crosswell...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13820713
... element surfaces in combination with the phantom nodes which are overlain on the original real nodes in order to demonstrate the discontinuities of both displacement field and fluid pressure in a cracked element located in the porous medium. The activation of phantom node at each element edge is not...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5860317
... p-wave attenuation fracture intersection material property fluid pressure fluid velocity A simple hydro-mechanical approach to simulate squirt-type flow at any scale Beatriz Quintal*, J. Germán Rubino, Eva Caspari, and Klaus Holliger (University of Lausanne, Switzerland) Summary We propose a...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5866978
... Summary We study the effect of the uncertainty in the induced microseismic event locations and origin times on the inverted fluid pressure diffusivity. We use a probabilistic physical model that directly ties fluid pressure in the subsurface during the injection to observations of induced...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0370
... for interpretation of attenuation in the seismic frequency band. dispersion upstream oil & gas seg denver 2014 pressure diffusion attenuation frequency relative fluid-solid displacement equation fluid pressure boundary condition specific surface area patchy saturation model...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0321
... of these hydraulic signatures from seismic data. connectivity seismic data fracture connectivity seg denver 2014 fluid flow fracture network energy dissipation attenuation peak rubino reservoir characterization displacement fracture contribution fluid pressure wiff frequency...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0926
...-resonance experiments, obtained with the Broad Band Attenuation Vessel and a Berea sandstone sample, shows, however, attenuation also at lower frequencies with a peak at ~0.3 Hz. This occurs when the fluid pressure is 0.5 MPa, but this peak disappears with an increased fluid pressure, even if the effective...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0895
... Summary Geopressure (or overpressure) presents significant risks to drilling if not predicted accurately. To better understand mechanisms of abnormal fluid pressure, I choose an inclusion-based micromechanical model by using the concept of eigenstrain and characterize the microstructure of...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1065
... fluid viscosity upstream oil & gas natural fracture viscous fluid propagation direction fluid pressure particle equation of state hydraulic fracturing maximum stress direction seg denver 2014 hydraulic fracture fractured rock discrete element method Influence of the injected fluid...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1439
... and at low pore fluid pressures (=0.5 MPa). A peak in attenuation, quantified by the inverse quality factor 1/ Q , of 0.02 was observed at about 1.5 Hz. A similar experiment was performed for water-nitrogen saturation and, again, at low fluid pressures and near full water saturation, a peak in...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0249
... Summary An inedited laboratory technique combined with 3D numerical modeling was used to investigate attenuation in a partially saturated Berea sandstone sample. The workflow consists in measuring both transient fluid pressure and attenuation in extensional mode at frequencies between 1 and...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0730
... due to a lack of numerical schemes to simulate rock failures. In order to solve this problem of hydraulic fracturing, we have developed a program to simulate fracture propagation from a borehole due to increasing fluid pressure using an extended finite difference method (X-FEM), which deals with any...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1377
... the laboratory local transient fluid pressure along a partially saturated rock sample. Furthermore, we compared the laboratory results with values calculated numerically using a 3D poroelastic numerical model to approximate the partially saturated rock sample. attenuation tisato rock sample...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1484
... with high clay and kerogen tend to slip stably (Kohli and Zoback, 2011). In addition, slip along poorly-oriented faults that occurs due to reduction of normal stress by high fluid pressure is expected to propagate slowly. Taken together, stimulating slip on pre-existing, faults in response to elevated...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0070
... mathematical statistics application. The result shows the evaluation method is suitable for the low porosity and permeability reservoir. machine learning porosity qikou depression reservoir characteristic zhang permeability fluid pressure coefficient reservoir property reservoir...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-4134
... ABSTRACT In this paper, a numerical study using the distinct element method was initiated to validate understanding the relationship between fracture damage, fluid pressure and seismic velocity changes in a naturally fractured reservoir. The fracture damage zone and fluid permeable zone were...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-2991
... propagation equation membrane permeability fluid dynamics fracture fluid pressure amplitude reservoir characterization schoenberg compliant fracture thickness interface condition Poroelastic modeling of seismic boundary conditions across a fracture M.A. Schoenberg, Consultant, 5 Mountain Rd...

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