Determination of Archie Parameters from Omani Carbonate Cores
This paper presents a data analysis approach to determine Archie parameter a, m and n from standard resistivity measurements on carbonate rocks core samples from Omani oil fields. The constants a and m were determined from core derived porosity data and the corresponding formation resistivity factor...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
1994-01-01
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| Series: | Journal of King Saud University: Engineering Sciences |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1018363918306123 |
| _version_ | 1818193058234105856 |
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| author | G.M. Hamada N.H. El-Farsi |
| author_facet | G.M. Hamada N.H. El-Farsi |
| author_sort | G.M. Hamada |
| collection | DOAJ |
| description | This paper presents a data analysis approach to determine Archie parameter a, m and n from standard resistivity measurements on carbonate rocks core samples from Omani oil fields. The constants a and m were determined from core derived porosity data and the corresponding formation resistivity factor under different overburden pressures. Saturation exponent n of Archie’s formula was estimated by measuring resistivity index for different brine saturations. The exact determination of Archie parameters is of paramount importance for the evaluation of oil reservoir rocks. Small change of a, m and n could produce a dramatic difference in the hydrocarbon reserve estimation processes.The core analysis presented in this study for carbonate rocks showed that a is in the range of 0.74 to 1.81 with an average of 1.12 and m varies from 1.41 to 2.79 and giving an average of 2.03. Saturation exponent n has a range of 1.83 to 2.59, with an average of n 2.08, indicating that the studied reservoir is predominantly water wet. Cementation factor m and formation factor coefficient a were tested under different overburden pressure conditions. It is found that m and a are sensitive to the change of the applied overburden pressure. |
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| format | Article |
| id | doaj.art-b428830ec2d64bd387c0dd9eddfedac4 |
| institution | Directory Open Access Journal |
| issn | 1018-3639 |
| language | English |
| last_indexed | 2024-12-12T00:40:21Z |
| publishDate | 1994-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of King Saud University: Engineering Sciences |
| spelling | doaj.art-b428830ec2d64bd387c0dd9eddfedac42022-12-22T00:44:15ZengElsevierJournal of King Saud University: Engineering Sciences1018-36391994-01-0162281293Determination of Archie Parameters from Omani Carbonate CoresG.M. Hamada0N.H. El-Farsi1College of Engineering, Sultan Qaboos University Sultanate of OmanCollege of Engineering, Sultan Qaboos University Sultanate of OmanThis paper presents a data analysis approach to determine Archie parameter a, m and n from standard resistivity measurements on carbonate rocks core samples from Omani oil fields. The constants a and m were determined from core derived porosity data and the corresponding formation resistivity factor under different overburden pressures. Saturation exponent n of Archie’s formula was estimated by measuring resistivity index for different brine saturations. The exact determination of Archie parameters is of paramount importance for the evaluation of oil reservoir rocks. Small change of a, m and n could produce a dramatic difference in the hydrocarbon reserve estimation processes.The core analysis presented in this study for carbonate rocks showed that a is in the range of 0.74 to 1.81 with an average of 1.12 and m varies from 1.41 to 2.79 and giving an average of 2.03. Saturation exponent n has a range of 1.83 to 2.59, with an average of n 2.08, indicating that the studied reservoir is predominantly water wet. Cementation factor m and formation factor coefficient a were tested under different overburden pressure conditions. It is found that m and a are sensitive to the change of the applied overburden pressure.http://www.sciencedirect.com/science/article/pii/S1018363918306123 |
| spellingShingle | G.M. Hamada N.H. El-Farsi Determination of Archie Parameters from Omani Carbonate Cores Journal of King Saud University: Engineering Sciences |
| title | Determination of Archie Parameters from Omani Carbonate Cores |
| title_full | Determination of Archie Parameters from Omani Carbonate Cores |
| title_fullStr | Determination of Archie Parameters from Omani Carbonate Cores |
| title_full_unstemmed | Determination of Archie Parameters from Omani Carbonate Cores |
| title_short | Determination of Archie Parameters from Omani Carbonate Cores |
| title_sort | determination of archie parameters from omani carbonate cores |
| url | http://www.sciencedirect.com/science/article/pii/S1018363918306123 |
| work_keys_str_mv | AT gmhamada determinationofarchieparametersfromomanicarbonatecores AT nhelfarsi determinationofarchieparametersfromomanicarbonatecores |