Spontaneous imbibition characteristics of diatomite

Date

2000-03-01

Author

Akın, Serhat
Bhat, S.K.
Kovscek, A.R.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

71
views

0
downloads

A systematic investigation of fluid flow characteristics within diatomite (a high porosity, low permeability, siliceous rock) is reported. Using an X-ray computerized tomography (CT) scanner, and a novel, CT-compatible imbibition cell, we study spontaneous cocurrent water imbibition into diatomite samples. Air–water and oil–water systems are used and the initial water saturation is variable. Mercury porosimetry and a scanning electron microscope (SEM) are employed to describe diatomite pore structure and the rock framework. Diatomite exhibits a fine pore structure and significant pore-level roughness relative to sandstone thereby aiding the flow of imbibing water. Despite a marked difference in permeability and porosity as compared to sandstone, we find similar trends in saturation profiles and dimensionless weight gain vs. time functions. Although diatomite is roughly 100 times less permeable than sandstone, capillary forces result in a strong imbibition potential for water such that imbibition rates rival and surpass those for sandstone

Subject Keywords

Fuel Technology, Geotechnical Engineering and Engineering Geology

URI

https://hdl.handle.net/11511/43245

Journal

Journal of Petroleum Science and Engineering

DOI

https://doi.org/10.1016/s0920-4105(00)00010-3

Collections

Department of Petroleum and Natural Gas Engineering, Article

Suggestions

OpenMETU
Core

Multiphase-flow properties of fractured porous media Rangel-German, Edgar; Akın, Serhat; Castanier, Louis (Elsevier BV, 2006-05-16) Water-air imbibition and oil-water drainage displacements were conducted using a laboratory flow apparatus in fractured sandstone systems. During the experiments, porosity and saturation were measured along the core using a Computerized Tomography (CT) scanner. 3-D saturation images were reconstructed to observe matrix-fracture interactions. Differences in fluid saturations and relative permeabilities caused by changes of fracture width have also been analyzed. In the case of water-air imbibition, narrower ...
Alteration of permeability by drilling fluid invasion and flow reversal Iscan, A. Gurkan; Civan, Faruk; Kök, Mustafa Verşan (Elsevier BV, 2007-08-01) Permeability impairment caused by drilling fluids and subsequent cleaning and permeability enhancement by backflow are investigated by means of experimental and simulation studies. Damage caused by two different drilling fluids is measured experimentally by core tests as a function of the filtration pressure and analyzed using a simulator describing the fines migration and retention in porous media. Simulations were run both with experimental and synthetic data in forward and backward directions along the c...
Estimation of permeability and rock mechanical properties of limestone reservoir rocks under stress conditions by strain gauge Iscan, A. G.; Kök, Mustafa Verşan; Bagci, A. S. (Elsevier BV, 2006-08-01) Petroleum engineering reservoir parameter calculations are generally performed in the absence of the overburden pressure effect. This leads to serious errors in further development of a hydrocarbon-bearing reservoir. Thus, measurements under stress conditions become important vitally. The objective is to correlate the overburden pressure and the permeability to see the overburden pressure effects on the permeability of Turkish southeastern limestone reservoir rock samples. Stress was applied to four represe...
Polymer gel conformance on oil recovery in fractured medium: Visualization and verification Canbolat, Serhat; Parlaktuna, Mahmut (Elsevier BV, 2019-11-01) Due to complexity and heterogeneity of the geological patterns of fractured reservoirs recovery estimations are considered to be extremely challenging. These fractures form complicated paths for reservoir characterization and fluid movement that ultimately impacts production performance and recovery.
Analytical and visual assessment of fluid flow in fractured medium Canbolat, Serhat; Parlaktuna, Mahmut (Elsevier BV, 2019-02-01) Most reservoirs consist of natural and artificial fractures, including isolated microscopic fissures. These fractures form complicated paths for reservoir characterization and fluid movement that ultimately impacts production performance and ultimate recovery. That's why recovery estimations of fractured reservoirs are considered to be extremely challenging due to complexity and heterogeneity of the geological patterns.

Citation Formats

S. Akın, S. K. Bhat, and A. R. Kovscek, “Spontaneous imbibition characteristics of diatomite,” Journal of Petroleum Science and Engineering, pp. 149–165, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/43245.