Accumulation condition and model of buried hill in the central uplift, Songliao Basin, China

Yi, Shiwei; Li, Mingpeng; Xu, Shan; Xu, Guangli; Bao-wen, Cui; Meng, Qingguo; Cheng, Hui; Wu, Xueqiong; Cui, Junfeng; Wang, Lixian

doi:10.1016/j.jnggs.2021.06.002

Cited by 1 publication

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“…Granite, as a dense rock formed by magma crystallization, has no primary pores. In addition, granite is hard to detect when buried thousands of metres underground, resulting in little attention to be paid during hydrocarbon exploration (Ye et al, 2020;Yi et al, 2021). However, with the development of global oil and gas exploration, breakthroughs have been made in granitic buried hills worldwide, and a few medium-to large-sized oil and gas fields have been discovered, such as the BachHo field in Vietnam, the Dongping gas field in China, the Penglai oil field in China, and the BC oilfield discovered in the Bongor Basin in Chad (Cuong and Warren, 2009;Dou et al, 2015;Chen et al, 2018;Guo et al, 2019;Li et al, 2021a;Dai et al, 2021).…”

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confidence: 99%

Predicting Granitic Buried-Hill Reservoirs Using Seismic Reflection data—A Case Study From the Bongor Basin, Southwestern Chad

Wang

Zhou

et al. 2022

Front. Earth Sci.

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Predicting the distribution of fractured and dissolved reservoirs in granitic buried hills is a prerequisite for finding high-quality hydrocarbon reservoirs and improving the success rate of exploration activities. Granitic buried-hill reservoirs in the Bongor Basin are characterized by strong heterogeneity and poor lateral continuity. Through the analysis of seismic, core, logging and dynamic production data, this study predicts the distribution of fractured reservoirs and fractured-cave reservoirs in the granitic buried hills in the BC Block of the Bongor Basin. In this study, we predict fractured reservoirs using coherence cubes and linearly enhanced attributes and identify fractured-cave reservoirs with single-frequency attribute bodies. Integrated predictions of fractured reservoirs and fractured-cave reservoirs are conducted using attribute fusion techniques. With these methods, good results have been achieved in reservoir prediction in BC buried hills. Furthermore, this study summarizes a set of granitic buried-hill reservoir prediction techniques for densely inverted rift basins in the Central African Rift System.

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