Possibilities of forward stratigraphic modeling for geological tasks of different scales on the example of the Vietnam’s southern shelf

UDK: 550.832
DOI: 10.24887/0028-2448-2022-1-36-39
Key words: Vietnam, Kuulong basin, Num Kon Son basin, forward stratigraphic modelling, exploration geology, regional geology
Authors: P.A. Shakhov (VNIIneft JSC, RF, Moscow), A.E. Desyatnikova (VNIIneft JSC, RF, Moscow), E.A. Berezovskaya (VNIIneft JSC, RF, Moscow)

Forward stratigraphic modeling is one of the modern geologist's tools, aimed at step-by-step simulation of sedimentation processes. This method creates good possibility for prediction of reservoir property trends in lateral and vertical direction in undrilled zones of the study area. The range of forward stratigraphic modeling applying determines by its results. First of all, this is the creating of reservoir property trends for basin models of hydrocarbon systems. In regional modeling cases, prerequisites also arise for the applying of its results in the search prospecting strategy. In the cases of local modeling, the method can be applied for targeting (or correction) of exploration drilling. Besides, with a sufficiently high level of detailing, we have options for use of results directly in three-dimensional geological modeling. As examples illustrating the methods and results of forward stratigraphic modeling, the article considered a regional model for the southern part of the Kyulong Basin; local model of block 12-11 located in the western part of the Nam Kon Son basin; sector models within local areas of Block 09-1 (Kyulong Basin). The shown examples confirm the effectiveness of identifying reservoir property trends after forward stratigraphic modeling and the correspondence of these results with independent materials of geophysical studies (seismic exploration).

References

1. Einsele G., Sedimentary basins. Evolution, facies and sediment budget, Springer-Verlag Berlin Heidelberg, 1992.

2. Nguyen Du Hung, Hung Van Le, Hoan Vu JOC, Hydrocarbon geology of Cuu Long Basin – Offshore Vietnam, Proceedings of AAPG International Conference, Barcelona, Spain, September 21-24, 2003, Article no. 90017.

3. Matthews S.J., Fraser A.J., Lowe S. et al., Structure stratigraphy and petroleum geology of SE Nam Con Son Basin, offshore Vietnam, Petroleum Geology of SoutheastAsia. Geological Society, London, Special Publication, 1997, V. 126, pp. 89–106, DOI:10.1144/GSL.SP.1997.126.01.07

4. Kudryashov S.I., Le V'et Khay, Fam Suan Shon et al., The White Tiger field: from the history of development to development prospects (dedicated to the 40th anniversary of the Vietsovpetro joint venture) (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2021, no. 6, pp. 6-14.

5. Geologicheskoe stroenie i neftegazonosnost' shel'fovykh neftyanykh mestorozhdeniy SP “V'etsovpetro” (Geological structure and oil and gas content of the offshore oil fields of JV "Vietsovpetro"): edited by Tu Than Nghia, Veliev M. M., St. Petersburg: Nedra Publ., 2016, 524 p.

6. Shoup R.C., Morley R.J., Swiecicki T., Clark S., Tectono-stratigraphic framework and tertiary paleogeography of Southeast Asia: Gulf of Thailand to South Vietnam Shelf,  Proceedings of AAPG International Conference and Exhibition, Singapore, September 16–19, 2012.



Attention!
To buy the complete text of article (Russian version a format - PDF) or to read the material which is in open access only the authorized visitors of the website can. .