潜江凹陷盐湖沉积储集层分布预测
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摘要
江汉盆地潜江凹陷潜江组为典型的盐湖沉积 ,盐岩主要发育在湖盆基准面的上升早期和下降中晚期 ,储集层发育受湖平面升降旋回、古地貌和物源供给的控制 ,储集层类型有低位体系域砂体、盐湖密度流砂体、湖滨浅滩砂体以及盐间非砂岩等。建立潜江组的高分辨率等时地层格架 ,将高精度测井层序对比与地震剖面横向追踪相结合 ,预测潜江凹陷潜北断裂带的高位及低位体系域三角洲和扇三角洲砂体较发育 ,蚌湖洼陷东斜坡和西斜坡发育扇三角洲砂体 ,凹陷坡折带盐湖密度流砂体等分布较为广泛 ,具有形成隐蔽油气藏的有利条件。图 5参 8
The Qianjiang Formation in the Qianjiang Sag, Jianghan Basin is a typical saline deposit where the salt are mainly developed in the early base level rise half cycle and M-L (middle-later) base level fall half cycle. The development of reservoirs is controlled by fall-rise cycle, paleo-landscape and material supply. The reservoirs could be typed as low-sand system-sandstone, saline density current sandstone, shallow shore and no-sand bodies, etc, which causes the diversity of type and distributing in the Jianghan Basin. It is well developed about high-stand deltas (or fan deltas) and low-stand deltas (or fan deltas) in QianBei fracture belt; Banghu sag's eastern and western slope fan and saline density current sandstone at the slope break belt in depress are distributed in saline abroad, which are good at forming subtle trap reservoirs.
The Qianjiang Formation in the Qianjiang Sag, Jianghan Basin is a typical saline deposit where the salt are mainly developed in the early base level rise half cycle and M-L (middle-later) base level fall half cycle. The development of reservoirs is controlled by fall-rise cycle, paleo-landscape and material supply. The reservoirs could be typed as low-sand system-sandstone, saline density current sandstone, shallow shore and no-sand bodies, etc, which causes the diversity of type and distributing in the Jianghan Basin. It is well developed about high-stand deltas (or fan deltas) and low-stand deltas (or fan deltas) in QianBei fracture belt; Banghu sag's eastern and western slope fan and saline density current sandstone at the slope break belt in depress are distributed in saline abroad, which are good at forming subtle trap reservoirs.
引文
[1] 黄春菊,陈开远,杨香华.盐湖盆地层序地层特征[J].石油与天然气地质,2002,23(2):134138.
[2] 刘安林.江汉盐湖盆地下第三系潜江组沉积环境及其与油气的关系[J].石油勘探与开发,1986,13(3):1019.
[3] 戴世昭.江汉盐湖盆地石油地质[M].北京:石油工业出版社,1997.
[4] 邓宏文.美国层序地层学研究中的新学派———高分辨率层序地层学[J].石油与天然气地质,1995,16(2):8997.
[5] 林畅松,张燕梅,刘景彦,等.高精度层序地层学和储层预测[J].地学前缘,2000,7(3):111115.
[6] 张国防,吴德云,马金钰.盐湖相石油的早期生成[J].石油勘探与开发,1993,20(5):4248,52.
[7] 蒲秀刚,漆智先,等.盐间非砂岩油藏基本石油地质特征及资源潜力[J].石油勘探与开发,2002,29(5):2830.
[8] 宋阳,李春梅,旷理雄.江汉盐湖盆地盐间非砂岩油气运移聚集研究[J].石油勘探与开发,2000,27(4):7175.
[2] 刘安林.江汉盐湖盆地下第三系潜江组沉积环境及其与油气的关系[J].石油勘探与开发,1986,13(3):1019.
[3] 戴世昭.江汉盐湖盆地石油地质[M].北京:石油工业出版社,1997.
[4] 邓宏文.美国层序地层学研究中的新学派———高分辨率层序地层学[J].石油与天然气地质,1995,16(2):8997.
[5] 林畅松,张燕梅,刘景彦,等.高精度层序地层学和储层预测[J].地学前缘,2000,7(3):111115.
[6] 张国防,吴德云,马金钰.盐湖相石油的早期生成[J].石油勘探与开发,1993,20(5):4248,52.
[7] 蒲秀刚,漆智先,等.盐间非砂岩油藏基本石油地质特征及资源潜力[J].石油勘探与开发,2002,29(5):2830.
[8] 宋阳,李春梅,旷理雄.江汉盐湖盆地盐间非砂岩油气运移聚集研究[J].石油勘探与开发,2000,27(4):7175.
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