| 陆相断陷盆地致密油藏特征与分类 |
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| 引用本文： | 周琦.陆相断陷盆地致密油藏特征与分类[J].地质与资源,2019,28(1):30-34. |
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| 作者姓名： | 周琦 |
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| 作者单位： | 东北石油大学秦皇岛校区,河北秦皇岛,066004 |
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| 基金项目： | 国家自然科学基金“渤海湾盆地济阳拗陷古近系陆相富有机质页岩裂缝研究”项目（编号41372139）. |
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| 摘 要： | 陆相断陷盆地的致密油气成藏条件复杂，储层性质变化多，规模开发的难度很大。根据渤海湾盆地的地质、地球化学、实验分析及生产测试等资料，对比国内外拗陷盆地致密油气藏特点，综合分析断陷盆地致密油气的成藏条件和成藏特征.研究表明断陷盆地生烃洼陷中富有机质泥页岩厚度大，有机质丰度高，成熟度演化范围宽；泥页岩成分复杂或与不同岩性的致密储层频繁互层，形成了丰富的自生自储或近源聚集的致密油气资源.致密油气藏依据油藏储层岩性类型分为致密碎屑岩类油藏、致密碳酸盐岩类油藏、致密火山岩类油藏、泥页岩类油藏4类.致密碳酸盐岩类油藏成藏条件最好，最易于开发.断裂构造附近泥页岩层系的构造裂缝发育区域，也具有良好的成藏条件，是重要的勘探方向.
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| 关 键 词： | 致密油 成藏条件 储层 油藏类型 陆相断陷盆地 |
| 收稿时间： | 2018-01-26 |
CHARACTERISTICS AND CLASSIFICATION OF TIGHT RESERVOIR IN CONTINENTAL FAULT BASINS |
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| ZHOU Qi.CHARACTERISTICS AND CLASSIFICATION OF TIGHT RESERVOIR IN CONTINENTAL FAULT BASINS[J].Geology and Resources,2019,28(1):30-34. |
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| Authors: | ZHOU Qi |
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| Institution: | Northeast Petroleum University, Qinhuangdao 066004, Hebei Province, China |
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| Abstract: | Due to the complex accumulation conditions and varied reservoir properties of tight oil and gas in continental fault basins, it is very difficult to carry out large-scale development. According to the geological, geochemical, experimental analysis and production test data of Bohai Bay Basin, the paper compares the characteristics of tight reservoir in depression basins at home and abroad, and comprehensively analyzes the accumulation conditions and features of tight oil and gas in fault basins. The results show that the organic-rich shale in the hydrocarbon generation sag of fault basins is characterized by large thickness, high abundance of organic matter, and wide maturity evolution range. The shale with complex compositions are interbedded with the tight reservoir of different lithology frequently to form rich self-generated and self-stored or proximate-accumulated tight oil-gas resources. The tight reservoir can be classified into four types, namely tight clastic rocks, carbonate rocks, volcanic rocks and shale in terms of lithology, among which the carbonate rock reservoir has the best accumulation conditions, thus much easier to exploit. The structural fracture developed areas in the shale formation near the faults also have good reservoir-forming conditions for exploration. |
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| Keywords: | tight oil accumulation condition reservoir reservoir type continental fault basin |
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