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All Journal Journal of Geoscience, Engineering, Environment, and Technology
Lubis, Muhammad Husni Mubarak
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Earth & Planetary Sciences Engineering Environmental Science Physics

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Integrated Analysis of Seismic and Well Data to Determine CO₂ Injection Zones in “W” Field of The Talang Akar Formation, Asri Basin Ardiansyah, Muhammad Feri Edo; Lubis, Muhammad Husni Mubarak
Journal of Geoscience, Engineering, Environment, and Technology Special Issue from The 2nd International Conference on Upstream Energy Technology and Digitalization
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.1.24363

Abstract

Asri Basin is one of the most prospective areas to store CO₂ in a CCS project in Indonesia. Previously, Asri basin was one of the most prolific oil and gas provinces in the region. This study characterizes the CO₂ injection zone in the saline aquifer reservoir by analyzing seal, storage, and injectivity. A model-based seismic inversion method was used to produce an acoustic impedance volume, which was then transformed into a porosity volume and a permeability volume. Also, analysis of seismic variance attributes was also carried out to investigate the presence of faults surrounding the seal.  The results indicated that the seal quality criteria in the study area are satisfactory because no faults intersect the seal. The average distribution of porosity values in the injection target zone is 32%, with the distribution of permeability values being more than 500 mD, making the area satisfactory for CO₂ injection.
4D Seismic Analysis of Hydrocarbon Reservoir at Hugin Formation, Volve Field, North Sea Agustin, Yasinta Farania; Lubis, Muhammad Husni Mubarak
Journal of Geoscience, Engineering, Environment, and Technology Special Issue from The 2nd International Conference on Upstream Energy Technology and Digitalization
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.1.24368

Abstract

This study investigates the 4D seismic analysis of oil-filled hydrocarbon reservoirs in the Volve Field. A primary objective is to model reservoir changes resulting from water injection activities using a time-lapse model-based inversion approach. The study employs Volve 3D seismic data from 2002 as a baseline and 2010 data as a monitor. Well logs used for the inversion include injection wells F-4 and F-5 and production well F-12. Inversion of the baseline and monitor seismic volumes reveals a distribution of acoustic impedance values ranging from 6770 to 12008 (m/s)*(g/cc). Time-lapse analysis, conducted by differencing the inverted baseline and monitor acoustic impedance volumes, reveals an average increase of approximately 2.74% in acoustic impedance in the vicinity of the injection and production wells. This increase is interpreted as a response to the migration of injected fluids into the reservoir. The spatial distribution of impedance changes suggests that the injected fluids preferentially migrate within the Middle Zone, rather than the Lower Hugin Zone. This behavior is likely controlled by the increased shale content in the Lower Hugin Zone, which acts as a permeability barrier and restricts downward fluid movement.
Co-Authors Agustin, Yasinta Farania Ardiansyah, Muhammad Feri Edo