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All Journal Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Penelitian Pendidikan IPA (JPPIPA) Spektra: Jurnal Fisika dan Aplikasinya PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Jurnal Geosains Terapan Scientific Contributions Oil and Gas
Abdul Haris
Departemen Fisika, Fakultas Matematika Dan Ilmu Pengetahuan Alam (FMIPA) Universitas Indonesia, Depok, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics Other

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Pseudo-3D Depth Reconstruction from Multi-Vintage 2D and 3D Seismic Data in The Offshore Southeast Sumatra Dadang Ramdan; Abdul Haris; Dewi Manik Darmayanti; Permana Citra Adi; Iwan Rudiyanto; Muhamad Yanuar Mahardi
Scientific Contributions Oil and Gas Vol 49 No 2 (2026)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v49i2.2110

Abstract

The availability of legacy 2D seismic data in many mature basins offers an opportunity to generate 3D-like subsurface images without the need for expensive 3D seismic acquisition. This study proposes and demonstrates a workflow to construct a pseudo-3D seismic volume from multi-vintage 2D and 3D seismic data in Offshore Southeast Sumatra. The objective is to improve subsurface imaging and depth-structure mapping while minimizing exploration cost and time. Major challenges include variations in amplitude, frequency, phase, and time alignment across datasets acquired with different parameters, as well as determining the optimum line spacing required for reliable 3D reconstruction. The workflow begins with 2D–3D matching and amplitude balancing, followed by spatial interpolation using the 3D Sparse Radon Interpolation technique, which reconstructs coherent reflectors between 2D lines. The generated pseudo-3D volume is then merged with available 3D seismic data to create a unified volume for interpretation. Subsequent time-to-depth conversion is performed using interval velocity data, and the velocity model is iteratively updated using time-preserving tomography based on depth mis-ties between seismic horizons and well markers until convergence is achieved. The resulting depth-structure map provides improved consistency with well control and reveals subtle structural features that were not observed in the individual 2D datasets. The proposed approach demonstrates that pseudo-3D reconstruction from multi-vintage 2D seismic data can serve as a practical and cost-efficient alternative for early-stage exploration and pre-survey evaluation, especially in offshore areas where 3D seismic acquisition is economically constrained.
Co-Authors Adang Sukmatiawa Agus Riyanto Alfian Usman Ambar Rachmanto Andang Bachtiar Dadang Ramdan Dewi Manik Darmayanti Dwandari Ralanarko Fadhlur Rahman Haryono Haryono Humbang Purba Ika S. Oktavianti Iwan Rudiyanto Lucky Rinaldy Muhamad Yanuar Mahardi Muhammad Fahmi Muhammad Nafian Novrizal Permana Citra Adi Praditio Riyadi Rano Rano Ressy Sandrina Rio I. Sebayang Sri Mardiyati Supriyanto Taufan Amersia Sumotarto Tri Aji Adi Harsanto Vina Wiryadinata Wrahaspati Rulandoko