干旱区生态环境知识资源中心(Arid): 库车坳陷白垩系储层的形成环境及成因分析

Arid

	库车坳陷白垩系储层的形成环境及成因分析
其他题名	Analysies for The Sedimentary Environment of Certaceous Strata and it’s Causes of Formation in the Kuqa Deression
	刘建清; 赖兴运; 于炳松
来源期刊	现代地质
ISSN	1000-8527
出版年	2004
卷号	18 期号:2 页码:249-255
中文摘要	近年来，在中国新疆库车前陆盆地中发现了克拉2等大型、特大型气田，并显示出良好的油气勘探前景。白垩系巴什基奇克、巴西盖组地层是克拉2等气田的主力储层，研究其成因并建立科学合理的预测机制具有重大的理论和现实意义。在对库车盆地的构造背景、沉积物质来源、岩石结构特征、古生物、微量元素地球化学特征、粒度分析、沉积构造、沉积体系等多侧面进行综合研究的基础上，认为该区在下白垩系储层沉积时处于干旱氧化的古气候环境，储层岩石具低成分成熟度和结构成熟度的特征，储层自下而上具典型的沉积构造和完整的沉积序列，应属扇三角洲一辫状河三角洲一湖泊沉积体系。特别是粒度资料分析表明该区的储层多呈一个过渡性的特征，它既不同于典型的浊流，又不同于典型的曲流河特征，形成了该区以辫状河为主的显著沉积特点。
英文摘要	In recent years, large-scale gas fields have been found in the Kala 2 area of the Kuqa depression, and show -well prospects in gas and oil exploration. Basjqke Formation and Baxgai Formation are the main reservoirs. The researches for the causes of their formation can establish scientific predicting system; therefore have a profound significance. Based on the analyses of tectonic, the source of the deposits, the mi-crostructure of the sandstone, the palaeontological species, the trace elements, the granularmetric character, the sedimentary structure and system, we can see that the strata are under arid-oxidizing climate during their formation, that the lithology of the reservoirs show a low-grade compositional maturity and structural maturity character, that the strata are a typical sedimentary structure and sedimentary sequence from bottom to top. It is concluded that the Cretaceous strata should be included in a braided delta, meandering river and lacustrine sedimentary system. One of the most important characters in Upper Cretaceous strata is that granularmetric character shows a transitional peculiarity, which is not only different to fluvial sediment, but also different to alluvial fan, all of which constitute a manifest character of the Cretaceous strata.
中文关键词	库车坳陷
英文关键词	the Kuqa depression
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOLOGY
WOS研究方向	Geology
CSCD记录号	CSCD:1619334
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205585
作者单位	中国地质大学(北京)地球科学与资源学院, 北京 100083, 中国
推荐引用方式 GB/T 7714	刘建清,赖兴运,于炳松. 库车坳陷白垩系储层的形成环境及成因分析[J],2004,18(2):249-255.
APA	刘建清,赖兴运,&于炳松.(2004).库车坳陷白垩系储层的形成环境及成因分析.现代地质,18(2),249-255.
MLA	刘建清,et al."库车坳陷白垩系储层的形成环境及成因分析".现代地质 18.2(2004):249-255.