Facies Analysis and Depositional Environmental Interpretation of The Upper Oligocene, Block 09-2/10, Cuu Long Basin

  • Muoi Duy NGUYEN Petroleum Geology Department, Faculty of Petroleum and Energy, Ha Noi University of Mining and Geology, 18 Vien Street – Duc Thang Ward – Bac Tu Liem District – Ha Noi – Vietnam
  • Anh Ngoc LE
  • Hoa Minh NGUYEN Basin, stratigraphy and sedimentary process group (BSSP), Ha Noi University of Mining and Geology, 18 Vien Street – Duc Thang Ward – Bac Tu Liem District – Ha Noi – Vietnam
  • Ngan Thi BUI Basin, stratigraphy and sedimentary process group (BSSP), Ha Noi University of Mining and Geology, 18 Vien Street – Duc Thang Ward – Bac Tu Liem District – Ha Noi – Vietnam
DOI: https://doi.org/10.29227/IM-2023-02-24
Keywords: Cuu Long basin, upper oligocene, depositional environment, seismic facies, block 09-2/10

Abstract

The article presents the facies and environment of the Upper Oligocene sediments in the area of block 09-2/10 based on the analysis of
seismic facies and well data of the neighboring areas. The results of the interpretation of seismic data indicate that the upper Oligocene
sediments are limited by the top C, top D seismic reflectors. The environment is formed from lagoons, lakes to deep lakes. Seismological
facies analysis identified 03 facies including seismic facies with medium to poor reflection amplitude, medium continuous, low frequency
reflecting the lacustrine sediments (80%) in most of the lake center. Strong reflective seismic facies, sigmoidal clinoforms reflect the
lakeside sediments (15%) distributed in the lakeside shelf. The seismic facies with average and continuous amplitude poorly reflect alluvial
sediments (5%) in the Northwest region. The direction of sediment transport is mainly from the Northwest and Southwest in the area. The
sandstone sequences are distributed on the slopes of the lake and the lake bottom, which is potential reservoir.

Published
2023-12-30
How to Cite
NGUYEN, M. D., LE, A. N., NGUYEN, H. M., & BUI, N. T. (2023). Facies Analysis and Depositional Environmental Interpretation of The Upper Oligocene, Block 09-2/10, Cuu Long Basin. Test, 1(2 (52), 155–162. https://doi.org/10.29227/IM-2023-02-24
Issue
Vol 1 No 2 (52) (2023): Inzynieria Mineralna
Section
ARTICLES

Copyright (c) 2023 Muoi Duy NGUYEN,Anh Ngoc LE,Hoa Minh NGUYEN,Ngan Thi BUI

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