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Adib Banuboro
Institut Teknologi Sepuluh Nopember
Computer Science & IT

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3D Resistivity Data Modelling to Identify Aquifer Geometry by Qualitative Analysis (Field Study: PDAM Surabaya Groundwater Conservation Area, Pasuruan) Ayi Syaeful Bahri; Amien Widodo; Widya Utama; Dwa Desa Warnana; Pegri Rohmat Aripin; Adib Banuboro; Robi Alfaq Abdillah
IPTEK Journal of Proceedings Series No 6 (2017): The 3rd International Conference on Civil Engineering Research (ICCER) 2017
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (687.103 KB) | DOI: 10.12962/j23546026.y2017i6.3249

Abstract

The resistivity method is one of the geophysical methods used to identify the aquifer layer by utilizing the rock response to the flow of electric current. This method considered more effective and can give a good subsurface cross-section, especially the fluid response. In this research, 3D modelling for identify geometry of subsurface geological structures of this study focus in three area (Plintahan, Duren Sewu, and Karangjati) using 2D resistivity data. Data Measurement of 2D resistivity using Wenner-Schlumberger configuration with length of each line is 155 meters and the target depth is 30 meters. The purpose of this configuration is to get an inverse with a resolution that is good to the lateral and vertical. The results show that the types of rocks in the research area was clay, sand and sandy shale with resistivity value 50-150 ohm-meter where sand rocks interpreted as aquifer rocks at depths of 2-7 meters and a thickness of 2-5 meters. The result of the resulting 3D modelling showed that the aquifer layer in Plintahan area showed the geological continuity with anticline geometry, in another area the aquifer layer in Durensewu - Karang Jati area showed the aquifer geometry prediction but there is no continuity of the structure of each other.
Analysis of Seismic Attributes and Band-Limited Inversion for Re-Determining The Hydrocarbon Prospect Zone in Data F3 Netherland Ayi Syaeful Bahri; Pegri Rohmat Aripin; Adib Banuboro; Alfaq Abdillah Robi
IPTEK Journal of Proceedings Series No 6 (2017): The 3rd International Conference on Civil Engineering Research (ICCER) 2017
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2017i6.3253

Abstract

The aim of this study was to determine the prospect zone of hydrocarbons in Dutch F3 field by utilizing seismic attribute analysis and band-limited inversion. The research data used comes from open source that can be downloaded at opendtect.com. Data processing uses Humpson Russel Software (HRS) to perform well to seismic tie and inversion. Interactive Petrophysics Software for well data analysis, crossplot and potential hydrocarbon estimates, and Petrel Software for well tie load data and seismic attribute analysis. Re-determination of the hydrocarbon prospecting zone includes data selection, log and seismic data processing, horizon and fault interpretation, time structure map and depth structure map, and seismic attribute analysis. From each of these stages will be integrated analyzed on the results of workmanship and geological interpretation of the sustainability of the top reservoir target. Based on the results of clay volume analysis using IP software with Gamma Ray as input parameters, it can be seen that the well that has the biggest prospect is the well F02-1 (774-919 meters) and F06-1 (770-825 meters). This is because the volume of sand in the prospect zone of both wells is larger than the other two wells. The hydrocarbon target depth is in the time to 250 to 500 second (time map structure) or 550 meters (depth conversion) with reservoir lithology in the form of shaly sand with gas fluid as filler.
Co-Authors Alfaq Abdillah Robi Amien Widodo Bahri, Ayi Syaeful Dwa Desa Warnana Pegri Rohmat Aripin Robi Alfaq Abdillah Widya Utama