# Seismic signatures of reservoir transport properties and pore fluid distribution

@inproceedings{Akbar1993SeismicSO, title={Seismic signatures of reservoir transport properties and pore fluid distribution}, author={N. Akbar and G. Mavko and A. Nur and J. Dvorkin}, year={1993} }

We investigate the effects of permeability, frequency, and fluid distribution on the viscoelastic behavior of rock. The viscoelastic response of rock to seismic waves depends on the relative motion of pore fluid with respect to the solid phase. Fluid motion depends, in part, on the internal wave‐induced pore pressure distribution that relates to the pore micro‐structure of rock and the scales of saturation. We consider wave‐induced squirt fluid flow at two scales: (1) local microscopic flow at… Expand

#### 34 Citations

Elastic wave velocities in partially saturated rocks: Saturation hysteresis

- Geology
- 1996

An effective medium approach (differential self-consistent scheme) has been used to calculate elastic wave velocities in rocks containing spherical pores and ellipsoidal cracks with two fluid phases.… Expand

Computational rock physics: wave propagation velocities in partially saturated rocks

- Geology
- 2012

Summary The effect of single-phase fluid saturation on the seismic bulk modulus of a rock is well understood; however, the behavior becomes more complex when multiple fluids are present. Several… Expand

Bounds on low‐frequency seismic velocities in partially saturated rocks

- Geology
- 1998

The most common technique for estimating seismic velocities in rocks with mixed pore fluid saturations is to use Gassmann’s relations with an effective fluid whose density and compressibility are… Expand

Effects of pore fluids in the subsurface on ultrasonic wave propagation

- Materials Science
- 1998

This thesis investigates ultrasonic wave propagation in unconsolidated sands in the presence of different pore fluids. Laboratory experiments have been conducted in the sub-MHz range using quartz… Expand

Absorption of strain waves in porous media at seismic frequencies

- 1996

An understanding of strain wave propagation in fluid containing porous rocks is important in reservoir geophysics and in the monitoring in underground water in the vicinity of nuclear and toxic waste… Expand

Pore-Scale Simulation Of Experimentally Realizable, Oscillatory Flow In Porous Rock

- Engineering
- 1999

We report new simulations of oscillating flow in porous rock. Our goal is to better understand the frequency dependence of pore-scale fluid motion, which should ultimately help us to interpret… Expand

Analysis of multiscale scattering and poroelastic attenuation in a real sedimentary rock sequence

- Geology, Medicine
- The Journal of the Acoustical Society of America
- 2000

The results suggest that a high permeability network of sediments or fractures in a lower permeability host rock may have a distinct separable attenuation signature, even if the overall volume of high permeable material is low. Expand

Impact of flow-simulation parameters on saturation scales and seismic velocity

- Geology
- 2003

Scales of fluid saturation below seismic resolution introduce uncertainties in the interpretation of seismic velocity. A “coarse‐scale” or “patchy” distribution always has a higher effective seismic… Expand

Influence of fluid chemistry on shear-wave attenuation and velocity in sedimentary rocks

- Geology
- 1995

SUMMARY
Measurements of shear-wave attenuation Qs−1 and velocity Vs were made in a sample of Massilon sandstone and a sample of Brauvilliers oolitic limestone in the kilohertz frequency range… Expand

Elastic modeling of seismic wave propagation in partially saturated rocks

- Geology
- 2012

Summary The effect of single-phase fluid saturation on a rock’s bulk modulus is well understood using Gassmann’s equation. However when multiple fluids are involved the behaviour is not as well… Expand

#### References

SHOWING 1-10 OF 18 REFERENCES

FLUID SATURATION EFFECTS ON DYNAMIC ELASTIC PROPERTIES OF SEDIMENTARY ROCKS

- Geology
- 1976

The influence of saturation by water, oil, gas, and mixtures of these fluids on the densities, velocities, reflection coefficients, and elastic moduli of consolidated sedimentary rocks was determined… Expand

Pore fluids and frequency‐dependent wave propagation in rocks

- Materials Science
- 1986

Attenuation is the anelastic process which dissipates seismic energy by conversion to heat, thus decreasing the amplitude and modifying the frequency and phase content of a propagating wavelet.… Expand

Dynamic poroelasticity: A unified model with the squirt and the Biot mechanisms

- Geology
- 1993

The velocities and attenuation of seismic and acoustic waves in rocks with fluids are affected by the two most important modes of fluid/solid interaction: (1) the Biot mechanism where the fluid is… Expand

Seismic attenuation: Effects of pore fluids and frictional-sliding

- Geology
- 1982

Seismic wave attenuation in rocks was studied experimentally, with particular attention focused on frictional sliding and fluid flow mechanisms. Sandstone bars were resonated at frequencies from 500… Expand

Estimating grain-scale fluid effects on velocity dispersion in rocks

- Materials Science
- 1991

The magnitude of the grain‐scale local flow effect on velocity dispersion in saturated rocks is quantified, by estimating the high‐frequency unrelaxed shear and bulk frame moduli, which are then… Expand

Viscoelastic properties of fluid-saturated cracked solids

- Geology
- 1977

The effective elastic moduli of a fluid-saturated solid containing thin cracks depend on the degree of interconnection between the cracks. Three separate regimes may be identified: (1) dry (drained),… Expand

Sample boundary effect in acoustic attenuation of fluid‐saturated porous cylinders

- Physics
- 1987

It was shown previously, by using Biot theory, that there exists an attenuation in the low‐frequency elastic modulus measurement on fluid‐saturated porous rock cylinders caused by the open‐pore… Expand

A laboratory study of the dependence of elastic wave velocities on pore scale fluid distribution

- Geology
- 1990

Laboratory data have been collected during a continuous imbibition/drainage experiment that show a clear dependence of elastic wave velocities on the details of the pore scale distribution of water… Expand

Bulk elastic wave propagation in partially saturated porous solids

- Physics
- 1988

The linear equations of motion that describe the behavior of small disturbances in a porous solid containing both liquid and gas are solved for bulk wave propagation. The equations have been… Expand

Relationships among compressional wave attenuation, porosity, clay content, and permeability in sandstones

- Geology
- 1990

Anelastic attenuation is the process by which rocks convert compressional waves into heat and thereby modify the amplitude and phase of the waves. Understanding the causes of compressional wave… Expand