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| 陆相盆地水下扇扇中亚相的微相细分--以东营凹陷史南地区沙二9梁家楼水下扇为例 | |
| 引用本文： | 王冠民,钟建华,宋书君,韩忠义,牛纪凤.陆相盆地水下扇扇中亚相的微相细分--以东营凹陷史南地区沙二9梁家楼水下扇为例[J].煤田地质与勘探,2005,33(3):8-12. |
| 作者姓名： | 王冠民 钟建华 宋书君 韩忠义 牛纪凤 |
| 作者单位： | 1. 中国科学院广州地球化学研究所,广州,510640;中国科学院研究生院,北京,100039;石油大学地球资源与信息学院,山东,东营,257061 2. 中国科学院广州地球化学研究所,广州,510640;石油大学地球资源与信息学院,山东,东营,257061 3. 胜利石油股份有限公司现河采油厂,山东,东营,257068 |
| 基金项目： | 国家"十五"科技攻关项目"济阳坳陷下第三系沉积体系与油气运聚机理"(2001BA605A09) |
| 摘 要： | 通过对东营凹陷史南地区沙二^9砂层组的小层精细对比和微相细分,可以将梁家楼水下扇扇中亚相进一步划分出辫状水道、辫状砂坝、“边滩”、侧缘砂坝、侧缘分支沟道、末端砂坝、冲溢扇、低阶地、高阶地等9个微相。不同微相之间的砂体粒度变化、平面发育位置都有明显的不同,尤其是其中的辫状砂坝、“边滩”、侧缘砂坝是在水下地形较平坦,坡度较小的情况下,由辫状沟道侧向迁移形成的。对水下扇扇中亚相的微相细分和重新厘定,不仅有助于对水下扇沉积过程的进一步了解,而且也将有助于油田对水下扇砂体剩余油的分布研究和开发方案的调整。 |
| 关 键 词： | 重力流 水下扇 扇中亚相 微相 |
| 文章编号： | 1001-1986(2005)03-0008-04 |
The division to microfacies in middle-fan of subaqueous fan in continental basin:a case study from Liangjialou subaqueous fan in Shinan area of the Dongying sag |
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| WANG Guan-min,ZHONG Jian-hua,SONG Shu-jun,HAN Zhong-yi,NIU Ji-feng.The division to microfacies in middle-fan of subaqueous fan in continental basin:a case study from Liangjialou subaqueous fan in Shinan area of the Dongying sag[J].Coal Geology & Exploration,2005,33(3):8-12. | |
| Authors: | WANG Guan-min ZHONG Jian-hua SONG Shu-jun HAN Zhong-yi NIU Ji-feng |
| Institution: | WANG Guan-min 1,2,3,ZHONG Jian-hua 1,3,SONG Shu-jun4,HAN Zhong-yi4,NIU Ji-feng4 |
| Abstract: | Based on elaborate correlation to substratum of Es 29 sand group in Shinan area, Dongying sag,the middle-fan of Liangjialou subaqueous fan can be divided in 9 micro-facieses: braided channel , braided bar, "point bar", lateral bar, lateral branching channel, end bar of branching channel, washover fan, low slope, high slope. There are obviously differences in changes of sand-grain-size and plane distribution among these microfacieses, the formation of braided bar, "point bar" and lateral bar were derived from lateral migration of braided channel with little gradient and flatter subaqueous landform. The elaborate division to microfacieses can help us to realize deposition of subaqueous fan and the distribution of remaining oil, and adjust the development plan to oil field. |
| Keywords: | density flow subaqueous fan middle-fan microfacies |
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