| 潜江盐湖盆地盐间沉积的石油地质特征 |
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| 引用本文： | 方志雄.潜江盐湖盆地盐间沉积的石油地质特征[J].沉积学报,2002,20(4):608-613. |
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| 作者姓名： | 方志雄 |
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| 作者单位： | 1 中国地质大学,武汉,430074; |
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| 摘 要： | 盐间沉积是潜江凹陷中的一种特殊盐湖盆地沉积物,它并非某种单一的岩性,而是随发育地区的不同而变化的特殊混合岩石。根据其岩石学特征难以命名。本文讨论了这种盐间沉积的岩石组分、沉积特征和油气地质意义。这类盐间沉积在化学成分和碎屑组成方面的韵律性变化具有明显的湖面升降变化含义,因而可将其韵律特性与层序地层单元进行对比分析。更重要的是,这类盐间沉积还是一种独特的集生油岩和储集岩于一体的含油气岩层,各种次生孔隙的发育使它成为一种潜在的有利储集层,近期的油气勘探已在其中获高产油气流。
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| 关 键 词： | 盐间沉积 沉积岩石学 储集层 潜江凹陷 盐湖盆地 |
| 文章编号： | 1000-0550(2002)04-0608-06 |
| 收稿时间： | 2001-07-30 |
Hydrocarbon Exploration Signification of Intersalt Sediments in Qianjiang Saline Lake Basin |
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| FANG Zhi,xiong.Hydrocarbon Exploration Signification of Intersalt Sediments in Qianjiang Saline Lake Basin[J].Acta Sedimentologica Sinica,2002,20(4):608-613. |
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| Authors: | FANG Zhi xiong |
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| Institution: | 1 Faculty of Earth Resource, China University of Geosciences, Wuhan 430074;2 Jianghang Oilfield Company of SINOPEC, Qianjiang, Hubei 433124 |
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| Abstract: | The sequence stratigraphy feature of intersalt sediments is the special rock in Qianjiang saline lake basin, which isn't simple sediments and has major changes in component and texture with basin area and geologic age. It is very difficult to name it on the basis of their petroleum characteristic. This paper discusses its component, petrology characteristic and petroleum geologic significance. Its rhythmics on petrochemical element and grain component has an important significance in lake level relative change. So the comparison and study of the intersalt nonsandstone rhythm and sequence stratigraphic units was done. By the way, the intersalt nonsandstone is a very eminent assemblage of hydrocarbon reservoir and source rocks, which is a potential good reservoir because of its more secondary porosity. Recently, a very good commercial well was drilled in the rock.sequence. |
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| Keywords: | intersalt sediments sedimentary petrology reservoir Qiangjiang Depression saline lake basin |
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