Implementation 3D inversion of gravity data to identify potential hydrocarbon reservoir zones in West Timor Basin

A gravity survey has been carried out in the area of West Timor, East Nusa Tenggara to identify the existence of basin structures. The existence of reservoirs and trap structures are two important parameters in hydrocarbon exploration. Geologically, Timor possibly an area known to have a very comp...

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Main Authors: Rosid, Mohammad Syamsu, Cicilia Budi Saraswati
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2020
Online Access:http://journalarticle.ukm.my/15902/
http://journalarticle.ukm.my/15902/1/4.pdf
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author Rosid, Mohammad Syamsu
Cicilia Budi Saraswati,
author_facet Rosid, Mohammad Syamsu
Cicilia Budi Saraswati,
author_sort Rosid, Mohammad Syamsu
building UKM Institutional Repository
collection Online Access
description A gravity survey has been carried out in the area of West Timor, East Nusa Tenggara to identify the existence of basin structures. The existence of reservoirs and trap structures are two important parameters in hydrocarbon exploration. Geologically, Timor possibly an area known to have a very complex geological structure. This complexity can be the main factor that causes the demotivation of geologists in exploring hydrocarbons. There are many indications of hydrocarbons in the form of oil and gas seeps on the surface, especially in East Timor. But most of them are not confirmed in the field, and only a few are even found in West Timor. The method used in this study is analyzing and 3D inversion modeling gravity data. The analysis was carried out using spectrum analysis and the second vertical derivative of the complete Bouguer anomaly (CBA). From the gravity parameters confirmed by geological data, the results indicate that in the study area there are basin and basement structures thought to be formed from unconformably of andesite igneous rock and tight send sediment with a density value of about 2.5 gr/cm3 . The average basement depth is about 5.5 km with its forming structure is the reverse/thrust fault with Northeast to Southwest its strike orientation. While in the southern part, especially in the central basin area, there is indicated a layer of sand sediment that is quite thick with a density value of about 2.2 gr/cm3 and has the potential to become a hydrocarbon reservoir.
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spelling oai:generic.eprints.org:159022020-12-06T09:05:06Z http://journalarticle.ukm.my/15902/ Implementation 3D inversion of gravity data to identify potential hydrocarbon reservoir zones in West Timor Basin Rosid, Mohammad Syamsu Cicilia Budi Saraswati, A gravity survey has been carried out in the area of West Timor, East Nusa Tenggara to identify the existence of basin structures. The existence of reservoirs and trap structures are two important parameters in hydrocarbon exploration. Geologically, Timor possibly an area known to have a very complex geological structure. This complexity can be the main factor that causes the demotivation of geologists in exploring hydrocarbons. There are many indications of hydrocarbons in the form of oil and gas seeps on the surface, especially in East Timor. But most of them are not confirmed in the field, and only a few are even found in West Timor. The method used in this study is analyzing and 3D inversion modeling gravity data. The analysis was carried out using spectrum analysis and the second vertical derivative of the complete Bouguer anomaly (CBA). From the gravity parameters confirmed by geological data, the results indicate that in the study area there are basin and basement structures thought to be formed from unconformably of andesite igneous rock and tight send sediment with a density value of about 2.5 gr/cm3 . The average basement depth is about 5.5 km with its forming structure is the reverse/thrust fault with Northeast to Southwest its strike orientation. While in the southern part, especially in the central basin area, there is indicated a layer of sand sediment that is quite thick with a density value of about 2.2 gr/cm3 and has the potential to become a hydrocarbon reservoir. Penerbit Universiti Kebangsaan Malaysia 2020-09 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/15902/1/4.pdf Rosid, Mohammad Syamsu and Cicilia Budi Saraswati, (2020) Implementation 3D inversion of gravity data to identify potential hydrocarbon reservoir zones in West Timor Basin. Sains Malaysiana, 49 (9). pp. 2065-2072. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid49bil9_2020/KandunganJilid49Bil9_2020.html
spellingShingle Rosid, Mohammad Syamsu
Cicilia Budi Saraswati,
Implementation 3D inversion of gravity data to identify potential hydrocarbon reservoir zones in West Timor Basin
title Implementation 3D inversion of gravity data to identify potential hydrocarbon reservoir zones in West Timor Basin
title_full Implementation 3D inversion of gravity data to identify potential hydrocarbon reservoir zones in West Timor Basin
title_fullStr Implementation 3D inversion of gravity data to identify potential hydrocarbon reservoir zones in West Timor Basin
title_full_unstemmed Implementation 3D inversion of gravity data to identify potential hydrocarbon reservoir zones in West Timor Basin
title_short Implementation 3D inversion of gravity data to identify potential hydrocarbon reservoir zones in West Timor Basin
title_sort implementation 3d inversion of gravity data to identify potential hydrocarbon reservoir zones in west timor basin
url http://journalarticle.ukm.my/15902/
http://journalarticle.ukm.my/15902/
http://journalarticle.ukm.my/15902/1/4.pdf