Reservoir Identification of Bac-Man Geothermal Field Based on Gravity Anomaly Analysis and Modeling

The Bac-Man gravity modeling was carried out to describe the geological structures that control the geothermal system and estimate the area of the geothermal reservoir. A total of 125 data points were used to produce a complete Bouguer anomaly map of the area. The gravity data are separated into reg...

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Autores principales:	Muh Sarkowi, Rahmat Catur Wibowo
Formato:	article
Lenguaje:	EN
Publicado:	Tamkang University Press 2021
Materias:	bac-man field gravity modeling reservoir geothermal Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Physics QC1-999
Acceso en línea:	https://doaj.org/article/f49208558abc423c9bd06df94ed36eeb
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spelling	oai:doaj.org-article:f49208558abc423c9bd06df94ed36eeb2021-11-23T17:09:01ZReservoir Identification of Bac-Man Geothermal Field Based on Gravity Anomaly Analysis and Modeling10.6180/jase.202204_25(2).00092708-99672708-9975https://doaj.org/article/f49208558abc423c9bd06df94ed36eeb2021-11-01T00:00:00Zhttp://jase.tku.edu.tw/articles/jase-202204-25-2-0009https://doaj.org/toc/2708-9967https://doaj.org/toc/2708-9975The Bac-Man gravity modeling was carried out to describe the geological structures that control the geothermal system and estimate the area of the geothermal reservoir. A total of 125 data points were used to produce a complete Bouguer anomaly map of the area. The gravity data are separated into regional and residual components to enhance the structural features of the sedimentary and basement rocks in the study area. Gravity data were analyzed using gradient interpretation techniques for edge detection, such as vertical descent. To perform three-dimensional (3-D) modeling, a 5 × 5 km volume and a depth of 2.5 km were selected. This study presents the interpretation of various gravity anomaly maps and 3-D inversion models. The interpretation of the vertical derivative of the gravity data indicates the presence of a low gradient anomaly. The anomaly map is used to identify several faults or intrusions compared to the faults or intrusions that are mapped. The 3-D model reveals that there are 3 geothermal reservoirs, and the average block density value is 2.25 g/cc. These reservoirs are spread over the Southern area (Cawayan and Tanawon Sector), East area (Boton Sector), and Palayan-Inang Maharang area. Faults or rock intrusions are the limiting factors for the three existing reservoirs. The results obtained from this study will lead to a better understanding of the geothermal system in the study area, in particular, reservoir boundaries, and assist in future geothermal exploration.Muh SarkowiRahmat Catur WibowoTamkang University Pressarticlebac-man fieldgravitymodelingreservoirgeothermalEngineering (General). Civil engineering (General)TA1-2040Chemical engineeringTP155-156PhysicsQC1-999ENJournal of Applied Science and Engineering, Vol 25, Iss 2, Pp 329-338 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bac-man field gravity modeling reservoir geothermal Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Physics QC1-999
spellingShingle	bac-man field gravity modeling reservoir geothermal Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Physics QC1-999 Muh Sarkowi Rahmat Catur Wibowo Reservoir Identification of Bac-Man Geothermal Field Based on Gravity Anomaly Analysis and Modeling
description	The Bac-Man gravity modeling was carried out to describe the geological structures that control the geothermal system and estimate the area of the geothermal reservoir. A total of 125 data points were used to produce a complete Bouguer anomaly map of the area. The gravity data are separated into regional and residual components to enhance the structural features of the sedimentary and basement rocks in the study area. Gravity data were analyzed using gradient interpretation techniques for edge detection, such as vertical descent. To perform three-dimensional (3-D) modeling, a 5 × 5 km volume and a depth of 2.5 km were selected. This study presents the interpretation of various gravity anomaly maps and 3-D inversion models. The interpretation of the vertical derivative of the gravity data indicates the presence of a low gradient anomaly. The anomaly map is used to identify several faults or intrusions compared to the faults or intrusions that are mapped. The 3-D model reveals that there are 3 geothermal reservoirs, and the average block density value is 2.25 g/cc. These reservoirs are spread over the Southern area (Cawayan and Tanawon Sector), East area (Boton Sector), and Palayan-Inang Maharang area. Faults or rock intrusions are the limiting factors for the three existing reservoirs. The results obtained from this study will lead to a better understanding of the geothermal system in the study area, in particular, reservoir boundaries, and assist in future geothermal exploration.
format	article
author	Muh Sarkowi Rahmat Catur Wibowo
author_facet	Muh Sarkowi Rahmat Catur Wibowo
author_sort	Muh Sarkowi
title	Reservoir Identification of Bac-Man Geothermal Field Based on Gravity Anomaly Analysis and Modeling
title_short	Reservoir Identification of Bac-Man Geothermal Field Based on Gravity Anomaly Analysis and Modeling
title_full	Reservoir Identification of Bac-Man Geothermal Field Based on Gravity Anomaly Analysis and Modeling
title_fullStr	Reservoir Identification of Bac-Man Geothermal Field Based on Gravity Anomaly Analysis and Modeling
title_full_unstemmed	Reservoir Identification of Bac-Man Geothermal Field Based on Gravity Anomaly Analysis and Modeling
title_sort	reservoir identification of bac-man geothermal field based on gravity anomaly analysis and modeling
publisher	Tamkang University Press
publishDate	2021
url	https://doaj.org/article/f49208558abc423c9bd06df94ed36eeb
work_keys_str_mv	AT muhsarkowi reservoiridentificationofbacmangeothermalfieldbasedongravityanomalyanalysisandmodeling AT rahmatcaturwibowo reservoiridentificationofbacmangeothermalfieldbasedongravityanomalyanalysisandmodeling
_version_	1718416249042501632

Reservoir Identification of Bac-Man Geothermal Field Based on Gravity Anomaly Analysis and Modeling

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