| 江汉盆地潜江凹陷王场地区古近系潜江组沉积微相及其演变 |
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| 引用本文： | 王国力,杨玉卿,张永生,漆志先,乔悦东,袁赫然.江汉盆地潜江凹陷王场地区古近系潜江组沉积微相及其演变[J].古地理学报,2004,6(2):140-150. |
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| 作者姓名： | 王国力 杨玉卿 张永生 漆志先 乔悦东 袁赫然 |
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| 作者单位： | 1.中国石化集团公司科技开发部 北京 100029
2 中海油田服务股份有限公司油田技术事业部 北京 101149
3 中国地质科学院矿产资源研究所 北京 100037
4 中国石化股份有限公司江汉分公司勘探开发研究院 湖北潜江 433124 |
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| 摘 要： | 潜江凹陷是一个中新生代断陷型盐湖盆地。其中蕴藏着丰富的石油、天然气和盐。在始新世晚期-渐新世早期潜江组沉积期，湖盆的构造活动和沉积充填作用极为活跃，形成了厚达4500 m的含盐岩系。通过对凹陷西北部王场地区王平1井、王云10-6井和王80-2井取心段共约151 m岩心的精细研究，在潜江组古盐湖韵律性含盐岩系中识别出17个典型的微相类型，并按成因与形成环境和岩类归纳为7个微相系列，对每个微相的特征与形成环境进行了分析。在潜江组淡化段中，沉积微相的纵向演变过程或组合类型复杂多变，总体上由潜四段至潜二段组成，湖盆的蒸发强度越来越大，水深越来越浅。最后，对潜江盐湖的形成条件和沉积环境演化进行了扼要分析。
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| 关 键 词： | 王场地区 沉积微相 古近系 潜江组 潜江凹陷 江汉盆地 |
| 文章编号： | 1671-1505(2004)02-0140-11 |
| 修稿时间： | 2003年2月27日 |
Sedimentary microfacies and evolution of the Qianjiang Formation of Paleogene at Wangchang area in Qianjiang Sag, Jianghan Basin |
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| Wang Guoli,Yang Yuqing,Zhang Yongsheng,Qi Zhixian,Qiao Yuedong,Yuan Heran.Sedimentary microfacies and evolution of the Qianjiang Formation of Paleogene at Wangchang area in Qianjiang Sag, Jianghan Basin[J].Journal of Palaeogeography,2004,6(2):140-150. |
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| Authors: | Wang Guoli Yang Yuqing Zhang Yongsheng Qi Zhixian Qiao Yuedong Yuan Heran |
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| Institution: | 1.Department of Science and Technology Development of China Petroleum and Chemical Corporation,Beijing 100029;2.Logging, Welltech China Oilfield Services Limited , Beijing 101149;3.Institute of Mineral and Resources of Chinese Academy of Geological Sciences, Beijing 100037;4.Institute of Exploration and Development, Jianghan Oilfield Division of China;
Petroleum and Chemical Corporation , Qianjiang 433124, Hubei |
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| Abstract: | The Qianjiang Sag is a Meso Cenozoic faulted saline basin, and bears abundant oil,gas and salt During the depositional period of the Qianjiang Formation (from Late Eocene to Early Oligocene),the tectonic activity and sedimentation infilling of the lacustrine basin were very active,thus forming the salt bearing rock series with a thickness of 4 500 m Through the detailed study on a total of about 151m thick cores in the interval of the Qianjiang Formation of wells Wangping 1,Wangyun 10-6 and Wang 80-2,of the Wangchang area,northwestern Qianjiang Sag,17 typical sedimentary microfacies are recognized,and 7 microfacies series are generalized according to origin,formation environment and rock types The characteristics of each microfacies are described,and the formation environment conditions are also analyzed The evolution process or association types of the microfacies in the intervals between the salt beds of the Qianjiang Formation is complex and various The evaporation degree of the lacustrine basin was gradually increasing,and the water depth was gradually shallower from Member 4 to Member 2 of Qianjiang Formation At last,the formation conditions of the Qianjiang saline basin and the evolution of the sedimentary environment are also analyzed briefly |
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| Keywords: | Wangchang area sedimentary microfacies Paleogene Qianjiang Formation Qianjiang Sag Jianghan Basin |
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