Hydrocarbon Accumulation Conditions and Main Controlling Factors of Intracratonic Carbonate Rocks in Russia

Xinhai Ma; Hongwei Xiao; Lei Ren; Zili Fan; He Liu; Xiyan Wang

doi:10.6919/ICJE.202606_12(6).0005

Authors

Xinhai Ma
Hongwei Xiao
Lei Ren
Zili Fan
He Liu
Xiyan Wang

DOI:

https://doi.org/10.6919/ICJE.202606_12(6).0005

Keywords:

Intracratonic Carbonate Rock; Inherited Paleo-uplift; Dual-mode Migration and Accumulation; Reef-beach Reservoir; Block S.

Abstract

Research objectives and scope: Taking intracratonic carbonate rocks in Block S as the research object, this paper aims to clarify the complex hydrocarbon accumulation rules, define the core controlling factors and hydrocarbon migration-accumulation mechanisms, and fill the research gaps in relevant fields. Research methods: Based on drilling, seismic and core test data, integrated seismic-geological interpretation, tectonic-sequence evolution restoration and accumulation element coupling analysis were adopted to systematically analyze source-reservoir-cap assemblage characteristics and hydrocarbon migration-accumulation laws. Research results and conclusions: An efficient hydrocarbon accumulation system consisting of high-quality hydrocarbon source rocks, high-energy reef-beach reservoirs and thick gypsum-salt cap rocks was identified. A dual-mode migration pathway network dominated by inherited paleo-uplifts as well as faults and unconformities was developed. Hydrocarbon accumulation was jointly controlled by the three-dimensional coupling of paleo-uplifts, reef-beach reservoirs and source-connected faults, and the corresponding hydrocarbon accumulation model was established. Innovation and application value: The established model further improves the accumulation theory of intracratonic carbonate reservoirs, provides important analogical references for the exploration of similar reservoirs in Tarim Basin, Sichuan Basin and other basins, and has important guiding significance for oil and gas exploration practice.

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References

[1] Tian, Y., Zhang, X. Y., Zhu, G. W., et al. (2016). Controlling effect of paleogeomorphology on the distribution and gas reservoir characteristics of intracratonic shoal reservoirs: A case study of the intracratonic shoal gas field in the Amu Darya Basin. Natural Gas Earth Science, 27(2), 320–329.

[2] Fa, G. F., Yuan, S. Q., Wang, Z. Q., et al. (2012). Petroleum geological characteristics and exploration potential of the Volga-Ural Basin. Special Oil & Gas Reservoirs, 19(5), 46–50.

[3] Li, B., & Zhu, X. M. (2012). Petroleum geological characteristics and exploration prospects of the Volga-Ural typical foreland basin. Special Oil & Gas Reservoirs, 34(1), 47–52.

[4] Qian, G. H. (2005). Petroleum geological characteristics and exploration directions of the Pre-Caspian Basin, Kazakhstan. China Petroleum Exploration, 10(5), 60–66.

[5] Gao, X. H., Tang, B., & Li, J. H. (2010). Petroleum geological characteristics of the Upper Magdalena Basin, Colombia. Fault-Block Oil & Gas Fields, 17(3), 262–265.

[6] Feng, J. R., Wen, Z. X., He, Z. J., et al. (2025). Evolution and lithofacies paleogeographic characteristics of the pre-Mesozoic prototype basin in the Volga-Ural Basin. Marine Oil & Gas Geology, 30(5), 447–456.

[7] He, H. B., He, D. F., Wen, Z. X., et al. (2012). Formation conditions and distribution patterns of large oil and gas fields in the Ural Foreland Basin Belt. Xinjiang Petroleum Geology, 33(2), 256–261.

[8] Wang, J. P., Deng, X. J., Wang, G., et al. (2012). Types of Ordovician reefs in China and succession of reef-building biota. Chinese Science Bulletin, 57(11), 924–932.

[9] Gong, E. P., Zhang, Y. L., Guan, C. Q., et al. (2010). Basic characteristics of Carboniferous reef development in the world. Journal of Paleogeography (Chinese Edition), 12(2), 127–139.

[10] Li, L. P., Liang, J. T., Liu, S. B., et al. (2022). Diagenesis and pore evolution of dolomite reservoirs in the Cambrian Xixiangchi Formation, central Sichuan Basin. Lithological Reservoirs, 34(3), 39–48.

[11] Du, J. M., Liu, B. Y., Zhang, Y., et al. (2023). Characteristics and hydrocarbon accumulation models of typical dolomite reservoirs in China. Lithological Reservoirs, 35(3), 86–98.