东海盆地西湖凹陷中央背斜带反转构造对油气成藏的控制作用

杨子杰; 陈冬霞; 常吟善; 王军; 陈晓意; 王福伟; 刘金水; 潘劲捷; 刘晨; 王翘楚; 王昱超; 曲洪达; 荣澜熹

doi:10.3799/dqkx.2026.119

Volume 51 Issue 7

Jul. 2026

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Article Navigation > Earth Science > 2026 > 51(7): 2682-2702

Yang Zijie, Chen Dongxia, Chang Yinshan, Wang Jun, Chen Xiaoyi, Wang Fuwei, Liu Jinshui, Pan Jinjie, Liu Chen, Wang Qiaochu, Wang Yuchao, Qu Hongda, Rong Lanxi, 2026. Control of Hydrocarbon Accumulation by Inverted Structure of Central Anticline Belt in Xihu Depression, East China Sea Basin. Earth Science, 51(7): 2682-2702. doi: 10.3799/dqkx.2026.119

Citation:

Yang Zijie, Chen Dongxia, Chang Yinshan, Wang Jun, Chen Xiaoyi, Wang Fuwei, Liu Jinshui, Pan Jinjie, Liu Chen, Wang Qiaochu, Wang Yuchao, Qu Hongda, Rong Lanxi, 2026. Control of Hydrocarbon Accumulation by Inverted Structure of Central Anticline Belt in Xihu Depression, East China Sea Basin. Earth Science, 51(7): 2682-2702. doi: 10.3799/dqkx.2026.119

Citation:

Yang Zijie, Chen Dongxia, Chang Yinshan, Wang Jun, Chen Xiaoyi, Wang Fuwei, Liu Jinshui, Pan Jinjie, Liu Chen, Wang Qiaochu, Wang Yuchao, Qu Hongda, Rong Lanxi, 2026. Control of Hydrocarbon Accumulation by Inverted Structure of Central Anticline Belt in Xihu Depression, East China Sea Basin. Earth Science, 51(7): 2682-2702. doi: 10.3799/dqkx.2026.119

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Control of Hydrocarbon Accumulation by Inverted Structure of Central Anticline Belt in Xihu Depression, East China Sea Basin

doi: 10.3799/dqkx.2026.119

Yang Zijie^{1, 2, 3
,
,},
Chen Dongxia^{1, 2, 3
,
,
,},
Chang Yinshan⁴,
Wang Jun⁴,
Chen Xiaoyi^{1, 2, 3},
Wang Fuwei^{1, 2, 3},
Liu Jinshui⁴,
Pan Jinjie^{1, 2, 3},
Liu Chen^{1, 2, 3},
Wang Qiaochu^{1, 2, 3},
Wang Yuchao^{1, 2, 3},
Qu Hongda^{1, 2, 3},
Rong Lanxi^{1, 2, 3}

1.
State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, China
2.
College of Geosciences, China University of Petroleum (Beijing), Beijing 102249, China
3.
Hainan Institute of China University of Petroleum (Beijing), Sanya 572025, China
4.
Research Institute of Shanghai Branch of CNOOC (China) Limited, Shanghai 200335, China

Received Date: 2026-01-07
Publish Date: 2026-07-25

Abstract

Abstract

The Xihu Depression underwent significant tectonic inversion during the Miocene, underscoring the importance of elucidating its coupling effects with hydrocarbon accumulation. This study utilizes various data, including 3D seismic, well logging, and employs multiple methods for a quantitative assessment of tectonic inversion intensity. The results indicate that the depression-uplift transition in the central anticline zone is pronounced, featuring the development of near EW extensional normal faults in the shallow anticline core, while early NNE-NE trending normal faults underwent activation through compressional inversion. Based on the characteristics of inversion normal faults, eight types of inverted structural styles have been classified. Through quantitative evaluations using fold amplitude ratios, fracture fractals, and fault inversion rates, it established that the central anticline belt exhibits a north-strong and south-weak pattern of tectonic inversion intensity, based on which four characteristic hydrocarbon accumulation models were established: Type I: fault-sand coupling under weak structural inversion; Type II: deep localized enrichment driven by intensive structural adjustment under moderate-to-strong inversion; Type III: vertical multi-stratigraphic enrichment facilitated by relay-style faulting under strong inversion; Type IV: large-scale enrichment preserved by non-penetrating faults under strong tectonic inversion. This research enhances the understanding of hydrocarbon accumulation mechanisms within the context of tectonic inversion in the Xihu Depression and provides valuable insights for exploration in analogous basins.
- inverted anticlines,
- tectonic inversion,
- hydrocarbon accumulation,
- Xihu Depression,
- East China Sea Basin,
- petroleum geology

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References(60)

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Control of Hydrocarbon Accumulation by Inverted Structure of Central Anticline Belt in Xihu Depression, East China Sea Basin

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