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Fracture characterization using downhole camera in deep boreholes at Southern Johor Bahru, Malaysia

Downhole camera is an effective tool to locate fractures and other geological features in boreholes although it does not quantify the characteristics of fracture directly. This study attempts to qualitatively characterize fractures in three deep boreholes, namely W1-W3 using downhole camera of R-CAM...

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主要な著者: Rathinasamy, Vynotdni, Mohamad, Edy Tonnizam, Komoo, Ibrahim, Ahmad Legiman, Mariatul Kiftiah, Nurul Amaniyah, Nurul Amaniyah, Bhatawdekar, Ramesh Murlidhar, Hanapi, Muhammad Nassir, Suparmanto, Eka Kusmawati
フォーマット: Conference or Workshop Item
出版事項: 2022
主題:
TA Engineering (General). Civil engineering (General)
オンライン･アクセス:http://eprints.utm.my/id/eprint/98537/
http://dx.doi.org/10.1007/978-981-16-9770-8_10
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spelling my.utm.985372023-01-12T09:01:57Z http://eprints.utm.my/id/eprint/98537/ Fracture characterization using downhole camera in deep boreholes at Southern Johor Bahru, Malaysia Rathinasamy, Vynotdni Mohamad, Edy Tonnizam Komoo, Ibrahim Ahmad Legiman, Mariatul Kiftiah Nurul Amaniyah, Nurul Amaniyah Bhatawdekar, Ramesh Murlidhar Hanapi, Muhammad Nassir Suparmanto, Eka Kusmawati TA Engineering (General). Civil engineering (General) Downhole camera is an effective tool to locate fractures and other geological features in boreholes although it does not quantify the characteristics of fracture directly. This study attempts to qualitatively characterize fractures in three deep boreholes, namely W1-W3 using downhole camera of R-CAM 1000 XLT as well as to investigate the geological features present at Southern Johor Bahru. The study area is underlain by Jurong Formation and Older Alluvium. Jurong Formation comprises of well cemented and consolidated volcanic-sedimentary rocks while Older Alluvium comprises of coarse, angular clayey sand with pebbles such as quartz, rhyolite, chert and argillite pebbles. The geological features encountered during the study are brecciated zone and veins such as quartz, calcite and pyrite. In addition, the fracture density in W2 (175/150 m) is found to be higher than W1 (79/165 m). Gently dipped (<20°), single set of joints with tight to open aperture (<0.1–4 cm) are dominant in both wells. Major orientation of discontinuities is north-east (0–90°) to south-west (180–270°) which is subparallel to bedding plane and lineament orientations. Meanwhile, no major structure is observed in W3. Thus, the study shows the importance of downhole camera survey in locating and characterizing fractures in rock mass qualitatively. 2022 Conference or Workshop Item PeerReviewed Rathinasamy, Vynotdni and Mohamad, Edy Tonnizam and Komoo, Ibrahim and Ahmad Legiman, Mariatul Kiftiah and Nurul Amaniyah, Nurul Amaniyah and Bhatawdekar, Ramesh Murlidhar and Hanapi, Muhammad Nassir and Suparmanto, Eka Kusmawati (2022) Fracture characterization using downhole camera in deep boreholes at Southern Johor Bahru, Malaysia. In: International Conference on Geotechnical challenges in Mining, Tunneling and Underground structures, ICGMTU 2021, 20 - 21 December 2021, Virtual, Online. http://dx.doi.org/10.1007/978-981-16-9770-8_10
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Rathinasamy, Vynotdni
Mohamad, Edy Tonnizam
Komoo, Ibrahim
Ahmad Legiman, Mariatul Kiftiah
Nurul Amaniyah, Nurul Amaniyah
Bhatawdekar, Ramesh Murlidhar
Hanapi, Muhammad Nassir
Suparmanto, Eka Kusmawati
Fracture characterization using downhole camera in deep boreholes at Southern Johor Bahru, Malaysia
description Downhole camera is an effective tool to locate fractures and other geological features in boreholes although it does not quantify the characteristics of fracture directly. This study attempts to qualitatively characterize fractures in three deep boreholes, namely W1-W3 using downhole camera of R-CAM 1000 XLT as well as to investigate the geological features present at Southern Johor Bahru. The study area is underlain by Jurong Formation and Older Alluvium. Jurong Formation comprises of well cemented and consolidated volcanic-sedimentary rocks while Older Alluvium comprises of coarse, angular clayey sand with pebbles such as quartz, rhyolite, chert and argillite pebbles. The geological features encountered during the study are brecciated zone and veins such as quartz, calcite and pyrite. In addition, the fracture density in W2 (175/150 m) is found to be higher than W1 (79/165 m). Gently dipped (<20°), single set of joints with tight to open aperture (<0.1–4 cm) are dominant in both wells. Major orientation of discontinuities is north-east (0–90°) to south-west (180–270°) which is subparallel to bedding plane and lineament orientations. Meanwhile, no major structure is observed in W3. Thus, the study shows the importance of downhole camera survey in locating and characterizing fractures in rock mass qualitatively.
format Conference or Workshop Item
author Rathinasamy, Vynotdni
Mohamad, Edy Tonnizam
Komoo, Ibrahim
Ahmad Legiman, Mariatul Kiftiah
Nurul Amaniyah, Nurul Amaniyah
Bhatawdekar, Ramesh Murlidhar
Hanapi, Muhammad Nassir
Suparmanto, Eka Kusmawati
author_facet Rathinasamy, Vynotdni
Mohamad, Edy Tonnizam
Komoo, Ibrahim
Ahmad Legiman, Mariatul Kiftiah
Nurul Amaniyah, Nurul Amaniyah
Bhatawdekar, Ramesh Murlidhar
Hanapi, Muhammad Nassir
Suparmanto, Eka Kusmawati
author_sort Rathinasamy, Vynotdni
title Fracture characterization using downhole camera in deep boreholes at Southern Johor Bahru, Malaysia
title_short Fracture characterization using downhole camera in deep boreholes at Southern Johor Bahru, Malaysia
title_full Fracture characterization using downhole camera in deep boreholes at Southern Johor Bahru, Malaysia
title_fullStr Fracture characterization using downhole camera in deep boreholes at Southern Johor Bahru, Malaysia
title_full_unstemmed Fracture characterization using downhole camera in deep boreholes at Southern Johor Bahru, Malaysia
title_sort fracture characterization using downhole camera in deep boreholes at southern johor bahru, malaysia
publishDate 2022
url http://eprints.utm.my/id/eprint/98537/
http://dx.doi.org/10.1007/978-981-16-9770-8_10
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score 13.251813

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