检索结果-南通市图书馆

Formation conditions of Sinian–cambrian large lithologic gas reservoirs in the north slope area of central Sichuan Basin,SW China

引用

Petroleum Exploration and Development 2022年第5期49卷 963-976页

作者： WEI Guoqi XIE Zengye YANG Yu LI Jian YANG Wei ZHAO Luzi YANG Chunlong ZHANG Lu XIE Wuren JIANG Hua LI Zhisheng LI Jin GUO Jianying PetroChina Research Institute of Petroleum Exploration&Development Beijing 100083China Key Laboratory of Gas Reservoir Formation and Development CNPCLangfang 065007China PetroChina Southwest Oil&Gas Field Company Chengdu 610051China

Based on analyses of characteristics,hydrocarbon charging history and geological conditions for the formation of Sinian-cambrian reservoirs in the north slope area of central Sichuan paleo-uplift,the natural gas origin,accumulation evolution,accumulation pattern and formation conditions of large lithologic gas reservoirs have been investigated.Through comprehensive analyses of natural gas composition,carbon and hydrogen isotopic compositions,fluid inclusions,reservoir bitumen,and geological conditions such as lithofacies paleogeography and beach body characterization,it is concluded that:(1)The natural gas in the Sinian-cambrian of the north slope area is mainly oil cracking gas,and different contribution ratios of multiple sets of source rocks lead to different geochemical characteristics of natural gas in different reservoirs.(2)Although the both Sinian and cambrian gas reservoirs in this area are lithologic gas reservoirs under monocline background,the former has normal-pressure and the latter has high-pressure.There are three types of source-reservoir-caprock combinations:single source with lower generation and upper reservoir,double sources with lower generation and upper reservoir or with side source and lateral reservoir,double sources with lower generation and upper reservoir or with upper generation and lower reservoir.The Permian-Triassic is the main generation period of oil,Early-Middle Jurassic is the main generation period of oil cracking gas and wet gas,and Late Jurassic-Cretaceous is the main generation period of dry gas.(3)The Sinian-cambrian system of the north slope area has two favorable conditions for formation of large lithologic gas reservoirs,one is that the large scale beach facies reservoirs are located in the range of ancient oil reservoirs or near the source rocks,which is conducive to the"in-situ"large-scale accumulation of cracked gas in the paleo-oil reservoirs,the other is that the large scale mound-beach complex reservoirs and sealing layers of inter beach tight zones match effecti

关键词： lithologic gas reservoir cracking gas accumulation pattern geochemical characteristics Sinian system cambrian system Sichuan Basin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Recently Ratified and Proposed cambrian Global Standard Stratotype-section and Points

引用

Acta Geologica Sinica(English Edition) 2011年第2期85卷 296-308页

作者： PENG Shanchi ZHU Xuejian ZUO Jinxun LIN Huanling CHEN Yong＇an WANG Longwu State Key Laboratory of Paleobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology the Chinese Academy of Sciences Nanjing 210008 China Henan Institute of Geological Survey Zhengzhou 450007 China No. 405 Geological Team of Hunan Bureau of Geology and Mineral Resources Jishou 416007 China Geological Surveying Institution of Zhejiang Province Xiaoshan 311203 China

This paper briefly summarizes an officially ratified Global Standard Stratotype-section and Point （GSSP） and a proposed GSSP for global stages of the cambrian system. The Luoyixi section near Luoyixi town, Guzhang, northwestern Hunan is ratified as the boundary stratotype for the base of the global Guzhangian Stage, which is the upmost stage of an unnamed series termed provisionally as cambrian Series 3. The GSSP position lies 121.3 m above the base of the Huaqiao Formation in the section, coinciding with the first appearance of the cosmopolitan agnostoid trilobite Lejopyge leavigata.The Duibian B section at Duibian village, Jiangshan, western Zhejiang, is proposed as the boundary stratotype for the base of the proposed global Jiangshanian Stage that is the second stage of the Furongian Series. The proposed GSSP position lies 108.12 m above the base of the Huayansi Formation in the section, coinciding with the first appearance of the cosmopolitan agnostoid trilobite Agnostotes orientalius. This horizon is also with the first appearance of the cosmopolitan polymerid trilobite lrvingella angustilimbata.

关键词： Global Standard Stratotype-section and Point Guzhangian Stage Luoyixi section proposed Jiangshanian Stage Duibian B section cambrian system

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：