| 东营凹陷乐安油田不整合与油气成藏 |
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| 引用本文： | 宁方兴.东营凹陷乐安油田不整合与油气成藏[J].甘肃地质学报,2009(1):56-59. |
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| 作者姓名： | 宁方兴 |
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| 作者单位： | 胜利油田分公司地质科学研究院; |
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| 摘 要： | 本文研究了与乐安油田油气形成有关的第三系与前第三系不整合、第三系内部古近系与新近系之间的不整合的特征,分析了不整合与油气成藏的关系：不整合改善了油气的储集空间,不整合面是油气侧向运移的良好通道,不整合面为油气聚集提供了有利场所。指出在乐安地区第三系与前第三系不整合面上部是泥岩,下面是灰岩的地方寻找潜山油藏和地层超覆油藏。在乐安地区第三系内部古近系与新近系之间的不整合面上下地层接触关系是截超关系,岩性是上泥下砂的地方寻找地层不整合遮挡油藏。指出了有利勘探方向。
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| 关 键 词： | 不整合 油气成藏 油气运移 组合样式 乐安油田 |
RELATIONSHIP BETWEEN UNCONFORMITY AND OIL-GAS RESERVOIR-FORMING IN LEAN OIL FIELD IN DONGYING DEPRESSION |
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| NING Fang-xing.RELATIONSHIP BETWEEN UNCONFORMITY AND OIL-GAS RESERVOIR-FORMING IN LEAN OIL FIELD IN DONGYING DEPRESSION[J].Acta Geologica Gansu,2009(1):56-59. |
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| Authors: | NING Fang-xing |
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| Institution: | Institute of geosciences;Branch of Shengli Oil field;Dongying 257015;China |
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| Abstract: | In this paper,unconformity types and features are researched,relationship between unconformity and oil and gas reservoir-forming is analysed,and reservoir types are controlled by unconformity.Unconformity improves oil and gas reservoir space,which is a good lateral migration path of oil and gas,and is the favorable place for oil and gas accumulation.The place at unconformity surface between Tertiary and pre-Tertiary searches buried hill reservoir and stractigraphic overlap reservoir.The place which the uppe... |
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| Keywords: | unconformity oil and gas reservoir-forming oil migration combination mode Lean oil field |
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