Structural Characteristics of Tensional-Shear Rhomb Graben and Its Control on Hydrocarbon Accumulation: A Case Study of Huizhou Sag, Pearl River Mouth Basin
-
摘要: 拉分盆地又称菱形盆地，一般在强走滑构造环境中发育，但惠州凹陷在喜山早期张扭背景下发育了珠江口盆地独具特色的菱形地堑.基于三维地震、钻井等资料，并结合区域构造背景，对惠州凹陷这一类张扭背景下发育的菱形地堑的构造特征、成因机制及其控藏作用进行研究.惠州凹陷发育NE-SW走向拉张型、近E-W走向扭-张型及NW-SE走向张-扭型3类主干断裂，3类主干断裂在文昌组沉积期差异活化，联合控制惠西地区张扭型菱形地堑4个演化阶段：复式半地堑发育期、菱形地堑雏形期、菱形地堑拓展期、菱形地堑定型期. 惠州-北卫滩隐伏断裂带在印支-燕山期形成和发育，喜山期左行活化影响范围基本覆盖整个惠西地区. 惠西地区在珠琼运动Ⅰ幕NW-SE向拉张背景及惠州-北卫滩隐伏断裂带左行活化共同控制下，发育为张扭型菱形地堑. 同时，菱形地堑发育及演化控制了惠西地区烃源岩发育规模、大型圈闭群形成及断层封堵、油气运移等成藏条件，相关古近系圈闭油气探勘潜力大.Abstract: The pull apart basin, also known as the diamond basin, typically forms in strong strike-slip tectonic setting. However, Huizhou Sag of Pearl River Mouth Basin developed the distinctive diamond-shaped graben during the Eocene rifting period under tensional-shear setting. Base on three-dimensional seismic and drilling data, along with regional tectonic context, This study investigates the structural characteristics, genesis mechanism, and oil and gas accumulation of tensional-shear rhomb graben. Huizhou Sag developed three types of primary faults: NE-SW trending extensional faults, nearly E-W trending shear-tensional faults, and NW-SE trending tensional-shear faults. Three types of major faults activated differently during the deposition of the Wenchang Formation and jointly controlled the four evolution stages of the transtensional rhombohedral graben in the Huixi area: the development phase of the compound half graben, the embryonic stage of the rhomb graben, the expansion phase of the rhomb graben, and the definitive stage of the rhomb graben. The Huizhou Beiweitan hidden fault was formed and developed in Indosinian-Yanshanian period, and its left-lateral activation area basically covered the whole Huixi area in the Himalayan period. Controlled by the NW-SE trending extensional setting of the first episode of the Zhuqiong Movement Ⅰ and the sinistral activation of Huizhou-Beiweitan hidden fault, Huixi sag developed a basin style of tensional-shearrhomb graben. At the same time, the development and evolution of diamond shaped graben control the development scale of source rocks, the formation of large trap groups, fault sealing, oil and gas migration. The NW-SE trending Paleogene trap group has great potential for oil and gas exploration.
-
图 1 珠江口盆地构造单元及惠州凹陷构造纲要图
a. 珠江口盆地构造单元图；b.惠州凹陷构造纲要图；①.阳江-一统隐伏断裂带；②.惠州-北卫滩隐伏断裂带
Fig. 1. Division of tectonic units of Pearl River Mouth Basin and structural outline of Huizhou Sag
图 3 惠西地区断裂样式剖面图
a. 拉张型断裂；b. 扭-张型断裂；c.张-扭型断裂；剖面路径见图 2
Fig. 3. Fault style profile of Huixi area
图 6 惠州-北卫滩隐伏断裂带新生代活化模式图
Fig. 6. Activation model map in Cenozoic of Huizhou Beiweitan hidden fault
图 7 惠西地区恩平组圈闭分布示意图
Fig. 7. Schematic diagram of trap distribution in Enping Formation of Huixi area
表 1 珠江口盆地惠州凹陷地层层序简表
Table 1. Stratigraphy-sequence table of Huizhou Sag, the Pearl River Mouth Basin
-
Carter, A., Roques, D., Bristow, C., et al., 2001. Understanding Mesozoic Accretion in Southeast Asia: Significance of Triassic Thermotectonism (Indosinian Orogeny) in Vietnam. Geology, 29(3): 211. https://doi.org/10.1130/0091-7613(2001)0290211:umaisa>2.0.co;2 doi: 10.1130/0091-7613(2001)0290211:umaisa>2.0.co;2 Cai, D. S., Luo, Y. H., Yao, C. H., 2001. Strike-Slip and Pull-Apart Structure Study and Its Significance to Petroleum Exploration on Laizhouwan Sag, Bohai Area. Acta Petrolei Sinica, 22(2): 19-25, 120(in Chinese with English abstract). doi: 10.3321/j.issn:0253-2697.2001.02.004 Chen, C. M., 2000. Petroleum Geology and Conditions for Hydrocarbon Accumulation in the Eastern Pearl River Mouth Basin. China Offshore Oil and Gas, 12(2): 73-83(in Chinese with English abstract). Chen, H. Y., Yu, J. G., Shu, L. S., et al., 2005. The Structural Styles and Their Relation with Petroleum-Gas Resources of the Jiyang Depression, Shandong Province, China. Geological Journal of China Universities, 11(4): 622-632(in Chinese with English abstract). doi: 10.3969/j.issn.1006-7493.2005.04.020 Chen, H. Z., Wu, X. J., Zhou, D., et al., 2005. Meso-Cenozoic Faults in Zhujiang River Mouth Basin and Their Geodynamic Background. Journal of Tropical Oceanography, 24(2): 52-61(in Chinese with English abstract). doi: 10.3969/j.issn.1009-5470.2005.02.007 Chen, H. H., 2023. Advances on Relationship between Strike-Slip Structures and Hydrocarbon Accumulations in Large Superimposed Craton Basins, China. Earth Science, 48(6): 2039-2066(in Chinese with English abstract). Gao, Y. D., Liu, J., Peng, G. R., et al., 2024. New Fileds and Resouce Potential of Oil and Gas Exploration in Pearl Riiver Mouth Basin. Acta Petrolei Sinica, 45(1): 183-201(in Chinese with English abstract). doi: 10.3969/j.issn.1001-8719.2024.01.019 Gao, Y. Z., 2022. Geological Characteristics and Tectonic Settings of Mesozoic Continental Margin Magmatic Arc in Pearl River Mouth Basin. 47(7): 2317-2327. Jia, P. M., Zhang, X. T., Chen, W. T., et al., 2021. Tectonic Evolution of Huizhou 21 Buried Hill and Its Control over Deep Oil Accumulations in the Huizhou Sag of Pearl River Mouth Basin. Marine Geology Frontiers, 37(12): 27-37(in Chinese with English abstract). Liu, H. L., 2018. Rift Style Controlled by Basement Attribute and Regional Stress in Zhu I Depression, Pearl River Mouth Basin(Dissertation). China University of Geosciences, Wuhan(in Chinese with English abstract). Li, K., 2023. Study on Volcanic Rruption-Orogeny Process of Shenhu Formation in Huizhou A/B Structural Belt, Pearl River Mouth Basin(Dissertation). Jilin University, Changchun(in Chinese with English abstract). Li, S. W., 2020. Cenozoic Volcanic Rocks in Huizhou Sag of the Pearl River Mouth Basin: from Petrogenesis to Volcanic Reservoir. Jilin University Changchun (in Chinese with English abstract). Li, J. H., Zhang, Y. Q., Dong, S. W., et al., 2014. Cretaceous Tectonic Evolution of South China: A Preliminary Synthesis. Earth-Science Reviews, 134: 98-136. https://doi.org/10.1016/j.earscirev.2014.03.008 Liu, J., Xu, G. S., Wen, H. H., et al., 2021. Main Factors Controlling the Formation of Buried Hill-Paleogene Reservoirs in 26-6 Structure of Huizhou, Pearl River Mouth Basin. Natural Gas Industry, 41(11): 54-63(in Chinese with English abstract). Liu, Q., 1986. Important Structures in Strike-Slip Fault System: Pull-Apart Basins. Bulletin of Geological Science and Technology, 5(2): 9-16(in Chinese). Liu, X. Y., Wu, J., Zhu, D. W., et al., 2021. Superimposition of Strike-Slip Faults and Pull-Apart Basins in the Pearl River Mouth Basin: A Case Study from the Eastern Yangjiang Sag. Geotectonica et Metallogenia, 45(1): 6-19(in Chinese with English abstract). Liu, Y., 2023. Hydrocarbon Generation and Expulsion Characteristics of Paleogene Source Rocks and Their Controlling Effects on Hydrocarbon Accumulations in the Southwest of Huizhou Sag(Dissertation). China University of Petroleum, Beijing(in Chinese with English abstract). Luan, X. W., 2022. Tectonic Divisions of Southeast Asia. Advances in Earth Science, 37(3): 221-252(in Chinese with English abstract). Luo, Q., Wang, Q. J., Yang, W., et al., 2023. Internal Structural Units, Differential Characteristics of Permeability and Their Transport, Shielding and Reservoir Control Modes of Strike-Slip Faults. Earth Science, 48(6): 2342-2360(in Chinese with English abstract). Mouslopoulou, V., Nicol, A., Little, T. A., et al., 2007. Displacement Transfer between Intersecting Regional Strike-Slip and Extensional Fault Systems. Journal of Structural Geology, 29(1): 100-116. https://doi.org/10.1016/j.jsg.2006.08.002 Que, X. S., 2024. Provenance Characteristics and Sedimentary Evolution of Zhu I Depression in Paleogene: Indications from Detrital Zircon Ages. Earth Science, 49(7): 2373-2387(in Chinese with English abstract). Ren, J. Y., Tamaki, K., Li, S. T., et al., 2002. Late Mesozoic and Cenozoic Rifting and Its Dynamic Setting in Eastern China and Adjacent Areas. Tectonophysics, 344(3/4): 175-205. https://doi.org/10.1016/S0040-1951(01)00271-2 Ren, J., Lyu, D. Y., Chen, X. P., et al., 2019. Oblique Extension of Pre-Existing Structures and Its Control on Oil Accumulation in Eastern Bohai Sea. Petroleum Exploration and Development, 46(3): 553-564. https://doi.org/10.1016/S1876-3804(19)60035-2 Shen, M. R., Shan, X. L., Hao, G. L., et al., 2024. Structural Difference and Control Mechanism of Early Cenozoic Depression in Yangjiang East Sag, Pearl River Mouth Basin. Earth Science, 49(10): 3559-3575(in Chinese with English abstract). Shi, H. S., Du, J. Y., Mei, L. F., et al., 2020. Huizhou Movement and its significance in Pearl River Mouth Basin, China. Petroleum Exploration and Development, 47(3): 447-461(in Chinese with English abstract). Shi, H. S., Yu, S. M., Mei, L. F., et al., 2009. Features of Paleogene Episodic Rifting in Huizhou Fault Depression in the Pearl River Mouth Basin. Natural Gas Industry, 29(1): 35-37, 40, 133(in Chinese with English abstract). Sun, X. M., Zhang, X. Q., Zhang, G. C., et al., 2014. Texture and Tectonic Attribute of Cenozoic Basin Basement in the Northern South China Sea. Science China Earth Sciences, 57(6): 1199-1211. https://doi.org/10.1007/s11430-014-4835-2 Tong, H. M., Fan, C. W., Meng, L. J., et al., 2018. Manifestation and Origin Mechanism of the Fault System Complexity in Rift Basins in Eastern-Southern China: Case Study of the Nanbu and Weixinan Sags. Earth Science, 92(9): 1753-1765(in Chinese with English abstract). Wang, Y. J., Fan, W. M., Zhang, G. W., et al., 2013. Phanerozoic Tectonics of the South China Block: Key Observations and Controversies. Gondwana Research, 23(4): 1273-1305. https://doi.org/10.1016/j.gr.2012.02.019 Wang, W., Ye, J. R., Yang, X. H., et al., 2015. Sedment Provenance and Depositional Response to Multistage Rifting, Paleogene, Huizhou Depression, Pearl River Mouth Basin. Earth Science, 40(6): 1061-1071(in Chinese with English abstract). Wu, Z. C., Gao, J. Y., Li, J. B., et al., 2011. The Characteristics of Magnetic anomalies: Implications for Pre-Cenozoic Tectonics of the Northern South China Sea. Chinese Journal of Geophysics, 54(12): 3292-3302(in Chinese with English abstract). Xu, C. G., Gao, Y. D., Liu, J., et al., 2024. Discovery and Inspiration of Large- and Medium-Sized Glutenite-Rich Oil and Gas Fields in the Eastern South China Sea: An Example from Paleogene Enping Formation in Huizhou 26 Subsag, Pearl River Mouth Basin. Petroleum Exploration and Development, 51(1): 14-27(in Chinese with English abstract). Yao, B. C., Zhang, L., Wei, Z. Q., et al, 2011. The Mesozoic Tectonic Characteristics and Sedmentary Basins in the Eastern Margin of South China. Marine Geology & Quaternary Geology, 31(3): 47-60(in Chinese with English abstract). Yu, S. M., Shi, H. S., Mei, L. F., et al., 2009. Analysis of tense-Shearing Characteristics of Huizhou Paleogene Fault Depression in Pearl River Mouth Basin. Petroleum Geology & Experiment, 31(5): 485-489(in Chinese with English abstract). Zeng, Z. W., 2020. Source-to-Sink System Analysis of the Paleogene in the Pearl River Mouth Basin, Northern South China Sea(Dissertation). China University of Geosciences, Wuhan(in Chinese with English abstract). Zhang, X. T., Liu, P., Wang, W. Y., et al, 2021. Controlling Effect of Tectonic Transformation in Paleogene Wenchang Formation on Oil and Gas Accumulation in Zhu Ⅰ Depression, Earth Science, 46(5): 1797-1813(in Chinese with English abstract). Zhang, Y. Z., Qi, J. F., Wu, J. F., 2019. Cenozoic Faults Systems and Its Geodynamics of the Continental Margin Basins in the Northern of South China Sea. Earth Science, 44(2): 603-625(in Chinese with English abstract). Zhan, C., Lu, S. P., Fang, P. G., 2022. Multiphase Rift and Migration Mechanism in the Pearl River Mouth Basin. Earth Science Frontiers, 29(4): 307-318(in Chinese with English abstract). 蔡东升, 罗毓晖, 姚长华, 2001. 渤海莱州湾走滑拉分凹陷的构造研究及其石油勘探意义. 石油学报, 22(2): 19-25, 120. 陈长民, 2000. 珠江口盆地东部石油地质及油气藏形成条件初探. 中国海上油气地质, 12(2): 73-83. 陈海云, 于建国, 舒良树, 等, 2005. 济阳坳陷构造样式及其与油气关系. 高校地质学报, 11(4): 622-632. 陈汉宗, 吴湘杰, 周蒂, 等, 2005. 珠江口盆地中新生代主要断裂特征和动力背景分析. 热带海洋学报, 24(2): 52-61. 陈红汉, 2023. 我国大型克拉通叠合盆地的走滑构造与油气聚集研究进展. 地球科学, 48(6): 2039-2066. doi: 10.3799/dqkx.2023.094 高阳东, 刘军, 彭光荣, 等, 2024. 珠江口盆地油气勘探新领域及资源潜力. 石油学报, 45(1): 183-201. 高阳东, 张向涛, 张丽丽, 等, 2022. 珠江口盆地中生代陆缘岩浆弧地质特征及构造背景. 地球科学, 47(7): 2317-2327. doi: 10.3799/dqkx.2021.247 贾培蒙, 张向涛, 陈维涛, 等, 2021. 珠江口盆地惠州凹陷惠州21古潜山的形成演化及其对深层油气成藏的控制. 海洋地质前沿, 37(12): 27-37. 刘海伦, 2018. 珠江口盆地珠一坳陷裂陷结构: 基底属性与区域应力联合制约(博士学位论文). 武汉: 中国地质大学. 李康, 2023. 珠江口盆地惠州A/B构造带神狐组火山岩喷发-成山过程研究(博士学位论文). 长春: 吉林大学. 李思伟, 2020. 珠江口盆地惠州凹陷新生代火山岩: 从岩石成因到火山岩储层(博士学位论文). 长春: 吉林大学. 刘杰, 徐国盛, 温华华, 等, 2021. 珠江口盆地惠州26-6构造古潜山-古近系油气成藏主控因素. 天然气工业, 41(11): 54-63. 刘庆, 1986. 走滑断裂系中的重要构造: 拉分盆地. 地质科技情报, 5(2): 7-14. 刘欣颖, 吴静, 朱定伟, 等, 2021. 珠江口盆地多期走滑构造与叠合型拉分盆地: 以阳江东凹为例. 大地构造与成矿学, 45(1): 6-19. 刘阳, 2023. 惠州凹陷西南部古近系烃源岩生排烃特征及其控油气作用(博士学位论文). 北京: 中国石油大学(北京). 栾锡武, 2022. 东南亚构造分区. 地球科学进展, 37(3): 221-252. 罗群, 王千军, 杨威, 等, 2023. 走滑断裂内部结构渗透差异特征及其输导控藏模式. 地球科学, 48(6): 2342-2360. doi: 10.3799/dqkx.2023.092 阙晓铭, 舒誉, 汪旭东, 等, 2024. 珠一坳陷古近纪物源特征及其沉积演化: 来自碎屑锆石年龄的指示. 地球科学, 49(7): 2373-2387. doi: 10.3799/dqkx.2022.428 任健, 吕丁友, 陈兴鹏, 等, 2019. 渤海东部先存构造斜向拉伸作用及其石油地质意义. 石油勘探与开发, 46(3): 530-541. 沈梦蓉, 单玄龙, 郝国丽, 等, 2024. 珠江口盆地阳江东凹早新生代洼陷结构差异及其控制机制分析. 地球科学, 49(10): 3559-3575. doi: 10.3799/dqkx.2022.078 施和生, 于水明, 梅廉夫, 等, 2009. 珠江口盆地惠州凹陷古近纪幕式裂陷特征. 天然气工业, 29(1): 35-37, 40, 133. 施和生, 杜家元, 梅廉夫, 等, 2020. 珠江口盆地惠州运动及其意义. 石油勘探与开发, 47(3): 447-461. 孙晓猛, 张旭庆, 张功成, 等, 2014. 南海北部新生代盆地基底结构及构造属性. 中国科学: 地球科学, 44(6): 1312-1323. 童亨茂, 范彩伟, 孟令箭, 等, 2018. 中国东-南部裂陷盆地断裂系统复杂性的表现形式及成因机制: 以南堡凹陷和涠西南凹陷为例. 地质学报, 92(9): 1753-1765. 王维, 叶加仁, 杨香华, 等, 2015. 珠江口盆地惠州凹陷古近纪多幕裂陷旋回的沉积物源响应. 地球科学, 40(6): 1061-1071. doi: 10.3799/dqkx.2015.088 吴招才, 高金耀, 李家彪, 等, 2011. 南海北部磁异常特征及对前新生代构造的指示. 地球物理学报, 54(12): 3292-3302. 徐长贵, 高阳东, 刘军, 等, 2024. 南海东部富砂砾型大中型油气田发现与启示: 以珠江口盆地惠州26洼古近系恩平组为例. 石油勘探与开发, 51(1): 14-27. 姚伯初, 张莉, 韦振权, 等, 2011. 华南东部中生代构造特征及沉积盆地. 海洋地质与第四纪地质, 31(3): 47-60. 于水明, 施和生, 梅廉夫, 等, 2009. 过渡动力学背景下的张扭性断陷: 以珠江口盆地惠州凹陷古近纪断陷为例. 石油实验地质, 31(5): 485-489. 曾智伟, 2020. 南海北部珠江口盆地古近纪源-汇系统耦合研究(博士学位论文). 武汉: 中国地质大学. 张向涛, 刘培, 王文勇, 等, 2021. 珠一坳陷古近系文昌期构造转变对油气成藏的控制作用. 地球科学, 46(5): 1797-1813. 张远泽, 漆家福, 吴景富, 2019. 南海北部新生代盆地断裂系统及构造动力学影响因素. 地球科学, 44(2): 603-625. doi: 10.3799/dqkx.2018.542 詹诚, 卢绍平, 方鹏高, 2022. 汇聚背景下的多幕裂陷作用及其迁移机制: 以南海北部珠江口盆地为例. 地学前缘, 29(4): 307-318. -
下载:
点击查看大图
图(7) / 表(1)
计量
- 文章访问数: 741
- HTML全文浏览量: 393
- PDF下载量: 69
- 被引次数: 0
