Influence of Hematite in Sandstone Reservoir

The presence of conductive minerals in sandstone reservoir will probably influence the reservoir resistivity (Rt) response. Significant decrease of Rt, which is read by log data will also cause misinterpretation. Such situation is known as Low Resistivity Zone (LRZ) and need to be solv...

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Main Authors: Winardi, Sarju, Surjono, Sugeng Sapto, Amijaya, Donatus Hendra, Suryanto, Wiwit
Format: Article
Language:English
Published: 2018
Subjects:
Online Access:https://repository.ugm.ac.id/274959/1/49b-2018-Winardi-Surjono.pdf
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author Winardi, Sarju
Surjono, Sugeng Sapto
Amijaya, Donatus Hendra
Suryanto, Wiwit
author_facet Winardi, Sarju
Surjono, Sugeng Sapto
Amijaya, Donatus Hendra
Suryanto, Wiwit
author_sort Winardi, Sarju
collection UGM
description The presence of conductive minerals in sandstone reservoir will probably influence the reservoir resistivity (Rt) response. Significant decrease of Rt, which is read by log data will also cause misinterpretation. Such situation is known as Low Resistivity Zone (LRZ) and need to be solved using certain approach to determine the corrected water saturation or Sw. The research was conducted by laboratory measurements of some sandstone pseudo cores, were conditioned to have some hematite volume. Rt is calculated from I (current in ampere) and V (voltage in volt) of the cores. Conductive mineral volumes (hematite) and Rt values are graphically plotted for each Sw lines. Result from laboratory measurements shows the relationship between hematite and Rt for each Sw level were nonlinear (exponential) regression. Rt will decrease significantly at core samples with hematite contain of >2%. Each Sw levels provide different profiles, means that water saturation also influence the Rt response. Plot for hematite volume, Rt and Sw lines is a simple proposed method that can be used to estimate the corrected Sw.
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spelling oai:generic.eprints.org:2749592019-01-11T06:58:46Z https://repository.ugm.ac.id/274959/ Influence of Hematite in Sandstone Reservoir Winardi, Sarju Surjono, Sugeng Sapto Amijaya, Donatus Hendra Suryanto, Wiwit Petroleum and Coal Geology Sedimentology Geophysical Fluid Dynamics Geophysics not elsewhere classified The presence of conductive minerals in sandstone reservoir will probably influence the reservoir resistivity (Rt) response. Significant decrease of Rt, which is read by log data will also cause misinterpretation. Such situation is known as Low Resistivity Zone (LRZ) and need to be solved using certain approach to determine the corrected water saturation or Sw. The research was conducted by laboratory measurements of some sandstone pseudo cores, were conditioned to have some hematite volume. Rt is calculated from I (current in ampere) and V (voltage in volt) of the cores. Conductive mineral volumes (hematite) and Rt values are graphically plotted for each Sw lines. Result from laboratory measurements shows the relationship between hematite and Rt for each Sw level were nonlinear (exponential) regression. Rt will decrease significantly at core samples with hematite contain of >2%. Each Sw levels provide different profiles, means that water saturation also influence the Rt response. Plot for hematite volume, Rt and Sw lines is a simple proposed method that can be used to estimate the corrected Sw. 2018-03-12 Article PeerReviewed application/pdf en https://repository.ugm.ac.id/274959/1/49b-2018-Winardi-Surjono.pdf Winardi, Sarju and Surjono, Sugeng Sapto and Amijaya, Donatus Hendra and Suryanto, Wiwit (2018) Influence of Hematite in Sandstone Reservoir. Proceedings of the 12th SEA TUC Symposium. ISSN 2186-7631
spellingShingle Petroleum and Coal Geology
Sedimentology
Geophysical Fluid Dynamics
Geophysics not elsewhere classified
Winardi, Sarju
Surjono, Sugeng Sapto
Amijaya, Donatus Hendra
Suryanto, Wiwit
Influence of Hematite in Sandstone Reservoir
title Influence of Hematite in Sandstone Reservoir
title_full Influence of Hematite in Sandstone Reservoir
title_fullStr Influence of Hematite in Sandstone Reservoir
title_full_unstemmed Influence of Hematite in Sandstone Reservoir
title_short Influence of Hematite in Sandstone Reservoir
title_sort influence of hematite in sandstone reservoir
topic Petroleum and Coal Geology
Sedimentology
Geophysical Fluid Dynamics
Geophysics not elsewhere classified
url https://repository.ugm.ac.id/274959/1/49b-2018-Winardi-Surjono.pdf
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AT suryantowiwit influenceofhematiteinsandstonereservoir