| 延长油田郭旗西区长6储集条件及油气成藏控制因素分析 |
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| 引用本文： | 杨悦,张化安.延长油田郭旗西区长6储集条件及油气成藏控制因素分析[J].西北地质,2005,38(3):68-75. |
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| 作者姓名： | 杨悦 张化安 |
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| 作者单位： | 1. 西安石油大学,陕西,西安,710065;延长油矿管理局,陕西,延安,717208
2. 延长油矿管理局,陕西,延安,717208 |
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| 摘 要： | 通过对延长油田郭旗西区长6油层组储层的沉积微相、储层的岩石学特征、成岩作用、孔隙结构特征和物性条件研究，探讨了影响储集条件和油气成藏的主要因素.延长油田郭旗西区三叠系延长组长6早期沉积微相以三角洲前缘水下分流河道为主，长6晚期以三角洲平原分流河道沉积为主，储集层发育.受成岩后生作用影响，形成了低孔隙度、特低-超低渗透率的储集层.油藏分布主要受沉积微相和储层物性控制，为典型的岩性油藏。
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| 关 键 词： | 沉积微相 低孔低渗 岩性油藏 延长油田 |
| 文章编号： | 1009-6248(2005)03-0068-08 |
| 收稿时间： | 2005-04-12 |
| 修稿时间： | 2005-06-08 |
Oil and gas pool formation control factors and reservoir conditions of Chang-6 reservoir in west area of Guoqi,Yanchang oil field |
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| YANG Yue,ZHANG Hua-an.Oil and gas pool formation control factors and reservoir conditions of Chang-6 reservoir in west area of Guoqi,Yanchang oil field[J].Northwestern Geology,2005,38(3):68-75. |
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| Authors: | YANG Yue ZHANG Hua-an |
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| Abstract: | The authors question the main factors of influence reservoir conditions and oil-gas pool formation, by studying sedimentary microfacies , petrodistinction, diagensis, porous structural character and physical quality conditions. The main sedimentary microfacies of Triassic system Yanchang Formation incipient Chang-6 reservoir horizons in west area of Guoqi, Yanchang oil field is delta front subaqueous distributary channel deposits, and later Chang-6 mainly is distributary channel. Reservoir horizons are development, this area form reservoir horizons of low porosity and extra low permeability for diagensis influence, oil pool is the typical litho-petrolifertous-pool, distribution of oil pool is controlled by sedimentary microfacies and reservoir physical quality. |
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| Keywords: | Yanchang oil field sedimentary microfacies low porosity and permeability l litho-petroliferous-pool |
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