| 断盖配置组合下中上部油气运聚纵向分布刻画方法及其应用 |
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| 引用本文： | 付广,丁云浩.断盖配置组合下中上部油气运聚纵向分布刻画方法及其应用[J].地质论评,2024,70(3):2024030009-2024030009. |
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| 作者姓名： | 付广 丁云浩 |
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| 作者单位： | 东北石油大学，黑龙江大庆，163318 |
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| 基金项目： | 本文为国家自然科学基金资助项目“断砂配置侧向分流运聚油气机理及有利部位识别研究”（编号：42072157）的成果 |
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| 摘 要： | 为了搞清含油气盆地断盖配置组合下中上部油气纵向分布规律，在断盖配置封闭组合特征及其下油气运聚纵向分布研究的基础上，通过油源断裂输导油气部位和油源断裂与上中下区域性泥岩盖层配置封闭和不封闭部位叠合，建立了一套断盖配置组合下中上部油气运聚纵向分布的刻画方法，并利用其刻画了渤海湾盆地歧口凹陷港东断裂与沙一中亚段、东二段和明化镇组区域性泥岩盖层配置组合沙一下亚段、东三段和馆陶组油气运聚纵向分布，结果表明：港东断裂与沙一中亚段、东二段和明化镇组区域性泥岩盖层配置组合沙一下亚段油气运移纵向分布主要在其东部和西部，港东断裂与沙一中亚段、东二段和明化镇组区域性泥岩盖层配置组合东三段和馆陶组油气运聚纵向分布主要在其中部。港东断裂与沙一中亚段、东二段和明化镇组配置组合沙一下亚段油气运聚纵向分布相对发育，有利于油气运聚成藏，港东断裂与沙一中亚段、东二段和明化镇组配置组合东三段和馆陶组油气运聚纵向分布相对不发育，不利于油气运聚成藏，与目前港东断裂处沙一下亚段、东三段和馆陶组内已发现油气分布相吻合，表明该方法用于刻画断盖配置组合下中上部油气运聚纵向分布是可行的。
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| 关 键 词： | 断盖配置组合 下中上部 油气运聚 纵向分布 刻画方法 |
| 收稿时间： | 2023/8/17 0:00:00 |
| 修稿时间： | 2024/5/8 0:00:00 |
Longitudinal distribution of oil and gas transportation and gathering in the lower-middle-upper part of fault-cap configuration combinations and its application |
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| FU Guang,DING Yunhao.Longitudinal distribution of oil and gas transportation and gathering in the lower-middle-upper part of fault-cap configuration combinations and its application[J].Geological Review,2024,70(3):2024030009-2024030009. |
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| Authors: | FU Guang DING Yunhao |
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| Institution: | Northeast Petroleum University, Daqing, Heilongjiang, 163318 |
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| Abstract: | To clarify the law of vertical distribution of oil and gas in the middle and upper part of oil and gas-bearing basins under the combination of fault-cap configurations.Methods: based on the research on the characteristics of the closed combination of fault-cap configurations and the vertical distribution of oil and gas transportation and gathering under them, a set of methods for the depiction of the vertical distribution of oil and gas transportation and gathering in the middle and upper part of oil and gas-bearing basins under the combination of fault-cap configurations are established through the superposition of the source rock-rooted fault transmission and gas transmission parts, and the source rock-rooted fault and the upper, middle, and lower part of regional mudstone caprock configurations that are closed and closed parts. It was used to delineate the longitudinal distribution of oil and gas transportation and gathering in the Gangdong fault of the Qikou sag in the Bohai Bay Basin and the regional mudstone caprock configuration combination of the middle part of the 1st member of the Shahejie Formation (Es1z), the 2nd member of Dongying Formation (Ed2) and the Minghuazhen Formation (Nm) in the lower sub-member of the 1st member of the Shahejie Formation (Es1x). The 3rd member of the Dongying Formation (Ed3) and the Neoproterozoic Guantao Formation (Ng). Results: The results show that the longitudinal distribution of oil and gas transport in the Es1z, Ed2and Nm under the combination of Gangdong fault and the Es1z, Ed2 and Nm is mainly in the east and west, and the longitudinal distribution of oil and gas transport in the Es1z, Ed2 and Nm under the combination of Gangdong fault and the Es1z, Ed2 and Nm are mainly in the east and west. The vertical distribution of oil and gas transport in Ed3 and Ng under the combination of the Gangdong fault and the regional mudstone caprock configurations of Es1z, Ed2 and Nm is mainly located in the middle of them. The vertical distribution of oil and gas transportation is relatively developed in Es1x under the combination of the Gangdong fault and the configuration of Es1z, Ed2, and Nm, which is favorable for oil and gas transportation and the formation of reservoirs. The vertical distribution of hydrocarbon transport in Ed3 and Ng under the configuration combination of the Gangdong fault with Es1z, Ed2 and Nm is relatively undeveloped, which is not conducive to the formation of reservoirs by hydrocarbon transport. This coincides with the current oil and gas distribution in Es1x, Ed3 and Ng at the Gangdong fault.Conclusions: This method is feasible to delineate the longitudinal distribution of oil and gas transport under the fault-cap configuration combination. |
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| Keywords: | fault-cap configuration combinations lower-middle-upper part hydrocarbon migration and accumulation vertical distribution characterization method |
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