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One of disadvantage in gravity measurement on surface is insufficient in vertical resolution. Borehole gravity method is done by measuring gravity response in certain depth interval inside a borehole to acquire better information of layer thickness caused by density contrast. Forward modeling with s...

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Main Author: HARIYADI (NIM : 12308059), WISNU
Format: Final Project
Language:Indonesia
Online Access:https://digilib.itb.ac.id/gdl/view/20619
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Institution: Institut Teknologi Bandung
Language: Indonesia
id id-itb.:20619
spelling id-itb.:206192017-10-09T10:31:17Z#TITLE_ALTERNATIVE# HARIYADI (NIM : 12308059), WISNU Indonesia Final Project INSTITUT TEKNOLOGI BANDUNG https://digilib.itb.ac.id/gdl/view/20619 One of disadvantage in gravity measurement on surface is insufficient in vertical resolution. Borehole gravity method is done by measuring gravity response in certain depth interval inside a borehole to acquire better information of layer thickness caused by density contrast. Forward modeling with synthetic models is made to identify characteristics of borehole vertical gradient response and borehole second vertical derivative (SVD) anomaly. These characteristics will be applied on real data from observation fields to determine subsurface layer and its density contrast type, in addition to estimate rock formation’s density and porosity. <br /> <br /> <br /> <br /> <br /> Results show that borehole SVD anomaly can determine subsurface layer and its density contrast type better than borehole vertical gradient response. Besides that, borehole gravity data can be used to estimate rock formation’s density and porosity, with average error value of 1,72% for interval density data to density log and 7,76% for interval porosity data to porosity log. text
institution Institut Teknologi Bandung
building Institut Teknologi Bandung Library
continent Asia
country Indonesia
Indonesia
content_provider Institut Teknologi Bandung
collection Digital ITB
language Indonesia
description One of disadvantage in gravity measurement on surface is insufficient in vertical resolution. Borehole gravity method is done by measuring gravity response in certain depth interval inside a borehole to acquire better information of layer thickness caused by density contrast. Forward modeling with synthetic models is made to identify characteristics of borehole vertical gradient response and borehole second vertical derivative (SVD) anomaly. These characteristics will be applied on real data from observation fields to determine subsurface layer and its density contrast type, in addition to estimate rock formation’s density and porosity. <br /> <br /> <br /> <br /> <br /> Results show that borehole SVD anomaly can determine subsurface layer and its density contrast type better than borehole vertical gradient response. Besides that, borehole gravity data can be used to estimate rock formation’s density and porosity, with average error value of 1,72% for interval density data to density log and 7,76% for interval porosity data to porosity log.
format Final Project
author HARIYADI (NIM : 12308059), WISNU
spellingShingle HARIYADI (NIM : 12308059), WISNU
#TITLE_ALTERNATIVE#
author_facet HARIYADI (NIM : 12308059), WISNU
author_sort HARIYADI (NIM : 12308059), WISNU
title #TITLE_ALTERNATIVE#
title_short #TITLE_ALTERNATIVE#
title_full #TITLE_ALTERNATIVE#
title_fullStr #TITLE_ALTERNATIVE#
title_full_unstemmed #TITLE_ALTERNATIVE#
title_sort #title_alternative#
url https://digilib.itb.ac.id/gdl/view/20619
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