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| Titel: |
Study of the Resistivity of Coal Seams of the Jharia Coalfield, India |
| Auteur: |
Verma, R. K. Bhuin, N. C. Handu, S. K. |
| Verschenen in: |
Energy sources. Part A, Recovery utilization and environmental effects |
| Paginering: | Jaargang 6 (1982) nr. 4 pagina's 273-291 |
| Jaar: |
1982 |
| Inhoud: |
An attempt has been made to study electrical properties of coal seams of the Jharia Coalfield, India. For this purpose, variations of resistivity values with percentage of water saturation have been studied in the laboratory for 63 coal samples belonging to 16 coal seams of this coalfield. Effective porosity values for all these samples lie within 5 percent. It has been observed that the resistivity values for the samples decay exponentially with increase in percentage of water saturation. A large difference in resistivity values is seen among the coal seams, even when they are fully saturated with water. Sometimes, samples of the same coal seam also show a large difference in resistivity value under full saturation condition. On account of their complex behavior, no general and clear relationship between “depth and porosity” and “depth and resistivity at 100 percent saturation” for coal seams have been obtained. Resistivity values of coal seams decrease considerably with higher percentage of water saturation, although no clear dependence on porosity values could be established. Field results of a few Schlumberger soundings over coal seams of this coalfield have been correlated with laboratory measurements. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 4 van 5 gevonden artikelen
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