Sutton and Roberts (1974) first heated a Berea sandstone core saturated with a Shannon Sand crude oil to 54.4° C and then cooled the outlet of the core to 21.1° C for 2 hours without any flow. The cloud point of the oil used in their experiment was 37.8° C. The paraffin and asphaltene contents of the crude oil were 4.1 and 0.7 weight percents, respectively.
Dynamic behavior of Berea sandstone for dry and water-saturated conditions Article in International Journal of Impact Engineering 26(1-10):465-474 · December 2001 with
In this study we determined the wave profiles of porous Berea sandstone and different stress-levels under shock-compression for dry and water-saturated conditions. This sandstone is well characterized under static conditions [7, 8, 9], but there is a lack of information regarding its behavior under shock compression. Futhermore, since Berea
ablerock(e.g., consolidated sandstone). Thepurposeofthis study was to examine the kinetics of microbial growth in relation to microbial penetration times through a consoli-dated Berea sandstone core. It is shown that relationships existbetweenpenetration time, penetration rate, permeabil-ity, andcore length. Furthermore, these relationships allow
Seismic attenuation in partially saturated Berea sandstone submitted to a range of confining pressures Samuel Chapman1, Nicola Tisato2,3, Beatriz Quintal1, and Klaus Holliger1 1Institute of Earth Sciences, University of Lausanne, Lausanne, Switzerland, 2Now at Jackson School of Geosciences, University of Texas, Austin, Texas, USA, 3Department of Earth Sciences, ETH Zurich, Zurich, Switzerland
An Experimental Study of CO2 Saturated Brine Reaction with Berea Sandstone Authors To investigate the stone and physical impacts of a CO 2-rich brine solution injection to a quartz rich sandstone, we flooded a Berea Sandstone core sample with CO 2-saturated synthetic brine at the elevated temperature (60°C) and pressure (20MPa). After flooding, the porosity and permeability of
Berea sandstone is a,Poisson's ratio ν and as a function of apparent frequency for the five sandstone samples saturated by water . Get Info; Effects of partial liquid/gas saturation on extensional,Effects of partial liquid/gas saturation on extensional wave attenuation in Berea,on Berea sandstone were,in partially saturated Berea
20/09/2012· Similar data for Berea sandstone are not consistent with Biot theory, since observed velocities are generally higher than predicted. Using the Biot theory, we calculate low- and high-frequency velocities for the liquid-saturated samples. “Biot dispersion” is then defined as the percent difference between the low- and high-frequency limits
We present the results of the laboratory measurements of elastic and anelastic parameters of dry and glycerol saturated Berea sandstone (71 mD permeability, 19 % porosity) conducted at seismic frequencies. The experiments were performed with a low-frequency laboratory apparatus designed to measure the complex Young’s moduli and extensional
Measurements of streaming potential and seismoelectric conversion 691 Figure 3 Typical measurement results of the streaming potential and coupling coefficient when the sample (Berea sandstone 500) is saturated with distilled water as a function of pressure. vertical water pressure.
conventionaltriaxial compressiontestsonsilicone-saturated Berea sandstone.Forspecimenstested at 10MPa effective confinement, the peak stress was 25% larger when the strain rate was increased from 2×10 4 to 2×10 3s 1, but the same increase in the strain rate at
Abstract. Penetration times and penetration rates for a motile Bacillus strain growing in nutrient-saturated Berea sandstone cores were determined. The rate of penetration was essentially independent of permeabilities above 100 mdarcys and rapidly declined for permeabilities below 100 mdarcys.
We experimentally investigate the frequency scaling of seismic attenuation in Berea sandstone saturated with two fluid phases: a liquid phase, water, and a gas phase, air, carbon dioxide or nitrogen. By changing from a heterogeneous distribution of mesoscopic gas patches to a homogeneous distribution of pore scale gas bubbles, we observe a
Pressure Evolution and Production Performance of Waterflooding in n-Heptane-Saturated Fired Berea Cores N. Rezaei and A. Firoozabadi, SPE, Reservoir Engineering Research Institute Summary This work presents experimental results and interpretation of injec-tion pressure and recovery performance of waterflooding in
We performed laboratory measurements of seismic attenuation and transient fluid pressure in a partially saturated Berea sandstone sample at room pressure and temperature. Combining these measurements is a new methodology to investigate fluid-related attenuation in rocks. The laboratory results suggested that wave-induced fluid flow on the
but not for Berea sandstone. Only two previous neutron imaging studies involving Berea sandstone were found in the literature, both of which focus on core fl ood experiments. Jasti et al. (1987) fl ooded an initially mineral oil-saturated Berea sandstone core with water to observe the migration of
Capillary pressure was measured on four strongly water-wet Berea sandstone core plugs and three chalk core plugs. The basic core properties are given in Table 4. The Berea sandstone core plugs were initially saturated 100% with brine. Initially the chalk core plugs were saturated with
simultaneous sonic and electrical measurements, on a saturated sample of Berea sandstone. A fracture based model initially presented by Stesky(1986) is adapted to describe the observed trends by incorporating pressure dependent crack compliances presented by Gao and Gibson (2012). We are
Here we present the results of forced hydrostatic and axial oscillation experiments on dry and glycerine‐saturated Berea sandstone, from which we determine the dynamic stiffness moduli and attenuation at micro‐seismic and seismic frequencies (0.004–30 Hz). We observe frequency‐dependent attenuation and the associated moduli dispersion
Laboratory measurements of seismic attenuation in sandstone: Strain versus fluid saturation effects Nicola Tisato1 and Beatriz Quintal2 ABSTRACT In the past few decades, great attention has been focused on uncovering the physics of seismic wave attenuation in fluid-saturated rocks. However, the relationship among
Complex electrical impedance measurements were performed on a brine-saturated Berea sandstone core while oil and CO 2 were injected at different pressures and temperatures. The saturations of brine, oil, and CO 2 in the core were simultaneously estimated using an X-ray computed tomography scanner. The formation factor of this Berea core and the resistivity indexes versus the brine saturations
scale and is found in Berea, Ohio. The porosity of the sandstone core is 19%. In a typical experiment, a Berea sandstone core 1 in. in diameter and 1 in. in length was vacuum saturated for 2 to 3 days in a 0.51 M (3 wt%) salt solution. The saturated Berea core was then placed inside the core holder and a
Induced rough fracture in Berea sandstone core> Zuleima T. Kapryn, Avarami S. Grader, Phillip M The experiment was performed in Berea sandstone cores with a single longitudinal fracture. The artificially created fracture was oriented parallel to the natural bedding of the rock. The sample was initially vacuum saturated with water, and oil was later injected through the longitudinal crack
of partially saturated Berea Sandstone Berea Sandstone was tested under a wide range of condi-tions. In fact, since 2009, we have collected more than 100 seismic-attenuation and velocity
Penetration times and penetration rates for a motile Bacillus strain growing in nutrient-saturated Berea sandstone cores were determined. The rate of penetration was essentially independent of permeabilities above 100 mdarcys and rapidly declined for
01/12/2001· Read "Dynamic behavior of berea sandstone for dry and water-saturated conditions, International Journal of Impact Engineering" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Berea Sandstone, also known as Berea Grit, is a sandstone formation in the U.S. states of Michigan, Ohio, Pennsylvania, West Virginia, and Kentucky.It is named after Berea, Ohio.The sandstone has been used as a building stone and is a source of oil and gas.
conventionaltriaxial compressiontestsonsilicone-saturated Berea sandstone.Forspecimenstested at 10MPa effective confinement, the peak stress was 25% larger when the strain rate was increased from 2×10 4 to 2×10 3s 1, but the same increase in the strain rate at
24/01/2013· Figure 3 shows the effective quadrature conductivity spectrum for a Berea sandstone (data from Lesmes and Frye ), which is a clayey sandstone with a very small amount of clay minerals. The properties of the Berea sandstone are summarized in Tables 1 and and2. 2.
Localization in Plane Strain Compression of Fluid-Saturated Rock Roman Y. Makhnenko and Joseph F. Labuz Abstract Localization in terms of a bifurcation from a homogeneous pattern of deformation is predicted to be different if the boundary conditions are drained or
of sandstone core samples as previously stated (Idaho Gray, Castlegate, Bentheimer, Buff Berea, Gray Berea and Parker), these sandstone types could be representative of aquifer storage formation (sites). The halite (NaCl) can be precipitated. A drastic decrease in permeability was observed. After drying all the core samples at the temperature
Berea sandstone at different water content using the manometric method at temperature of 50˚C and pressures of up to 20 MPa. Our results document that a significant quantity of CO2 was sorbed on the two types of sandstone on all wa- ter-saturated bases, which corresponded to the amount adsorbed on the air-dry basis. Also, all the wet samples
p. 1 Effect of Rock Heterogeneity and Relative Permeability on CO 2 Flow in Brine-Saturated Berea Sandstone Ljubinko Miljkovic Abstract A general consensus has been reached in the scientific community that large-scale anthropogenic emission of CO 2 will continue to cause global warming of the earth’s lower atmosphere, which is expected to have the secondary effects of raising sea level
Moreover, 4-electrode systems and its additional electronics (as compared to 4-electrode systems) is in general less suitable for high frequencies. In their measurements, done using both 4 and 2 electrodes on a Berea sandstone saturated with NaCl, found a good overlap between the two devices in the frequency range [10 2 –10 3] Hz.
Absolute permeability simulations through (a) Fontainebleau sandstone, (b) dry Berea sandstone, and (c) saturated Berea sandstone. Areas with increased velocity are shown with red streamlines and are interpreted as preferential fluid flow pathways, whilst areas
2 sorption isotherms in water-saturated and air-dry (water-free) states for Kimachi sandstone (Fig. 1(a)) and for Berea sandstone (Fig. 1(b)), respectively. All rock samples tested in water-saturated state were found to have a significantly sorption capacity as well as that in air-dry state reported
dimensional imbibition of water in an air saturated Berea sandstone core. The experiment was conducted weight gain experiment to obtain the times involved in imbibition of water, specifically to know the time scale for capturing the early dynamics of water imbibition. Results from the plot of
13/10/2016· Values of c for water-saturated Berea sandstone are of the order of 0.1 m 2 s −1. The characteristic time scale for equilibration of pore pressure inside the rock is approximately 0.1 s for water-filled sandstone and approximately 10 s for oil-filled sandstone, which is significantly smaller than the time scales of the reported tests (1000 s
Electrical resistivities of rock samples saturated with NaCl solution have been measured at 1 KHz and under 31 MPa hydrostatic pressures and at temperatures up to 350°C. Berea sandstone, Boise sandstone, cores from the Cerro Prieto geothermal field, Mexico, and
coreflood involves injection of CO2-saturated brine in the sandstone core samples of the same Berea formation. During the tests, the produced effluent brine is sampled, and pH and ionic content are analyzed. The pressure drop is recorded during the experiments to observe any potential blockage or increase in permeability.
