Thermogenic Hydrocarbon Potential on Two Drop Cores Samples from The Surface Geochemical Exploration Program in The Offshores Area of Yamdena Basin, Tanimbar Islands

Nisa Nurul Ilmi, Edy Sunardi

Abstract


Seepage of hydrocarbons in near-surface sediments can be categorized into micro and macro seepage, controlled by complex geological, geochemical, and biological processes. Surface geochemical exploration programs have been widely employed to detect and analyze geochemical anomalies on the Earth's surface, which could indicate the presence of subsurface mineral or hydrocarbon deposits. This study aims to characterize two drop core samples extracted from the Yamdena Basin through organic geochemical and isotopic analysis to assess the potential for thermogenic hydrocarbons in the region. A quantitative approach was adopted, utilizing geochemical data, including stable carbon isotope analysis and organic geochemical evaluation through Gas Chromatography (GC) and Gas Chromatography-Mass Spectrometry (GC-MS). The samples analyzed consisted of two piston cores collected during a surface geochemical program conducted by TDI-Brooks International, Inc. This study relies on data from a previous TDI-Brooks International, Inc. survey, with data licensed from TGN-NOPEC Geophysical Company through the Migas Data Repository (MDR) – Pusdatin, focusing on the organic geochemical characterization of drop core samples from offshore Tanimbar Islands. The results indicate that Sample#1 and Sample#2 samples were deposited in a marine setting with varying terrestrial input and exhibited a low maturity level. Geochemical signatures reveal the presence of immature land-plant lipids, suggesting a low potential for thermogenic hydrocarbon generation. The findings highlight the value of surface geochemical exploration programs in mapping hydrocarbon prospects in frontier areas. Furthermore, detailed geochemical analyses can provide insights into the sources and potential of hydrocarbons, aiding in future exploration strategies.


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References


Abrams, M. A. (1996). Distribution of subsurface hydrocarbon seepage in near surface marine sediments. In D. Schumacher &

M. A. Abrams (Eds.), Hydrocarbon migration and its near-surface expression: AAPG Memoir 66 (pp. 1–14).

Baillie, P., Fraser, T., Hall, R., & Myers, K. (2003). Geological development of eastern Indonesia and the northern Australia collision zone: A review. Proceedings of the Timor Sea Symposium, Darwin, Northern Territory, 19–20.

Barber, P., Carter, P., Fraser, T., Baillie, P., & Myers, K. (2003). Paleozoic and Mesozoic Petroleum Systems in the Timor and Arafura Seas, Eastern Indonesia. Indonesia Petroleum Association, 29th Annual Convention, 1–16.

Barber, P. M., Carter, P. A., Fraser, T. H., Baillie, P. W., & Myers, K. (2003). Under-explored Palaeozoic and Mesozoic petroleum systems of the Timor and Arafura seas, northern Australian continental margin. Petroleum Geoscience: Proceedings of the Timor Sea Symposium, Darwin,.

Bernard, B. B., Brooks, J. M., Baillie, P., Decker, J., Teas, P. A., & Orange, D. L. (2008). Surface geochemical exploration and heat flow surveys in fifteen (15) frontier Indonesian basins. Indoesia Petroleum Association, 32nd Annual Convention Proceeding.

Bissada, K. K., Elrod, L. W., Robison, C. R., Darnell, L. M., Szymczyk, H. M., & Trostle, J. L. (1993). Geochemical inversion-a modern approach to inferring source-rock identity from characteristics of accumulated oil and gas. Energy Exploration & Exploitation, 11(3–4), 295–328.

Bjorøy, M., & L. Ferriday, I. (2006). Surface Geochemistry as an Exploration Tool in Frontier Areas Case Study From Offshore Brunei. PGCE 2006. https://doi.org/10.3997/2214-4609-pdb.256.P24

ENGLAND, W. A., MACKENZIE, A. S., MANN, D. M., & QUIGLEY, T. M. (1987). The movement and entrapment of petroleum fluids in the subsurface. Journal of the Geological Society, 144(2), 327–347. https://doi.org/10.1144/gsjgs.144.2.0327

Etiope, G. (2015). Natural Gas Seepage: The Eart’s Hydrocarbon Degassing. Springer International Publishing.

Fakhruddin, R. (2020). Pre-tertiary stratigraphy of the Tanimbar Islands, Indonesia. AIP Conference Proceedings 2245, 070008. https://doi.org/10.1063/5.0006795

Hill, G. T., Owens, L., & Norman, D. I. (2006). Surface geochemistry in exploration for a buried geothermal system, socorro, new mexico. Thirty-First Workshop on Geothermal Reservoir Engineering, SGP-TR-179.

Jiang, D., Robbins, E. I., Wang, Y., & Yang, H. (2016). Mechanisms of Petroleum Migration BT - Petrolipalynology (D. Jiang, E. I. Robbins, Y. Wang, & H. Yang (eds.); pp. 153–158). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-662-47946-9_8

Larriestra, F., Larriestra, C. N., Lanussol, D., & Davies, N. (2013). Surface Geochemical Exploration Using Bacterial and Plant Bioindicators, Northern Neuquen Basin, Argentina. AAPG Online Journal, Search and Discovery, 41194.

Metcalfe, I. (1998). Palaeozoic and Mesozoic geological evolution of the SE Asian region: multidisciplinary constraints and implications for biogeography. In R. Hall & J. . Holloway (Eds.), Biogeography and Geological Evolution of SE Asia (pp. 25–41).

Backhuys. https://doi.org/https://doi.org/10.1144/SP355.2

Milsom, J. (1991). Gravity measurements and terrane tectonics in the New Guinea region. Journal of Southeast Asian Earth Sciences, 6(3–4), 319–328. https://doi.org/10.1016/0743-9547(91)90077-B

Palmer, S. E. (1993). Effect of biodegradation and water washing on crude oil composition. In Organic Geochemistry (pp. 511–533). Springer.

Peters, K. E., Walters, C. C., & Moldowan, J. M. (2005). The Biomarker Guide: Volume 2, Biomarkers and isotopes in petroleum system and earth history. Cambridge University Press.

Saputra, A., & Ohara, M. (2016). BASIN AND PETROLEUM SYSTEM MODELING OF OFFSHORE TANIMBAR REGION: IMPLICATIONS OF STRUCTURAL DEVELOPMENT HISTORY. Indoesia Petroleum Association, Fortieth Annual Convention & Exhibition Proceeding.

Schumacher, D. (2000). Surface geochemical exploration for oil and gas: new life for an old technology. The Leading Edge, 19(3), 258–261.

Sofer, Z. (1984). Stable Carbon Isotope Compositions of Crude Oils: Application to Source Depositional Environments and Petroleum Alteration. The America Association of Petroleum Geologists Bulletin, 68(1), 31–49.

Tedesco, S. A. (2012). Surface geochemistry in petroleum exploration. Springer Science & Business Media.

Tedesco, S. A. (2021). 2 - Microseeps as pathfinder and regional filtering tool in petroleum exploration. In S. Gaci, O. Hachay, & O. B. T.-M. and A. in P. and M. E. and E. G. Nicolis (Eds.), Methods and Applications in Petroleum and Mineral Exploration and Engineering Geology (pp. 11–37). Elsevier. https://doi.org/https://doi.org/10.1016/B978-0-323-85617-1.00003-5

Tissot, B. P., & Welte, D. H. (1985). Petroleum Formation and Occurrence. In Springer-Verlag, Berlin, Germany. https://doi.org/10.1029/EO066i037p00643




DOI: https://doi.org/10.24198/gsag.v8i2.61562

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