Relative Permeability Measurements of Composite Cores—An Experimental Approach
| Autor: | Abdulrazag Y. Zekri, Reyadh A. Almehaideb |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Capillary action
General Chemical Engineering Composite number Residual oil saturation Residual oil Energy Engineering and Power Technology Mineralogy General Chemistry Geotechnical Engineering and Engineering Geology chemistry.chemical_compound Permeability (earth sciences) Fuel Technology chemistry Carbonate Relative permeability High flow Geology |
| Zdroj: | Petroleum Science and Technology. 24:717-736 |
| ISSN: | 1532-2459 1091-6466 |
| DOI: | 10.1081/lft-200041185 |
| Popis: | Some experimental tests require floods to be carried out on longer cores, typically 1–3 feet long. When whole cores are not available, side-wall cores each measuring 3–6 inches long are put together to make a composite core. It is the prevailing practice in the industry for composite core floods to order cores in an ascending permeability order, as this is thought to lower capillary forces for high flow rates and thus lessen the capillary end-effect. Langaas et al. (1998) have demonstrated through a theoretical study that a new criteria for composite core ordering should be followed (i.e., ordering cores in a descending order). In this work, we present results of an experimental composite core flooding study that was designed to test how the properties of the individual cores in a composite core-stack influence the measured residual oil saturation and relative permeabilities for an oil–water system typical of a water flood. The study was conducted for carbonate cores, predominant in the lower Ara... |
| Databáze: | OpenAIRE |
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