鄂西渝东五峰组—龙马溪组富有机质页岩小层划分对比研究——以咸地2井为例  

Study on the Fine Development of Rich Organic Shale of Wufeng Formation-Longmaxi Formation in the Western Hubei and Eastern Chongqing

作　　者：王作华 张号 何俊 朱传伟 肖明宏 吕星 Wang Zuohua;Zhang Hao;He Jun;Zhu Chuanwei;Xiao Minghong;Lv Xing(Hubei Coal Geological Exploration Institute,Hubei Coal Geological Bureau,Wuhan,Hubei430070)

机构地区：[1]湖北煤炭地质局湖北煤炭地质勘查院,湖北武汉430070

出　　处：《资源环境与工程》2021年第1期47-52,共6页Resources Environment & Engineering

基　　金：湖北省页岩气资源调查评价项目《湖北咸丰尖山—高乐山页岩气区块有利区评价优选》(项目编号:HBCZ-17060223-170397)。

摘　　要：湖北咸丰地区咸地2井五峰组—龙马溪组页岩具有沉积厚度大、有机碳含量高、含气性好等特点。通过系统分析咸地2井钻井、录井、测井资料以及测试分析结果,对咸地2井五峰组—龙马溪组进行小层划分,共划分9个小层。重点对其岩石特性、沉积环境等作细致的研究,结合测井数据、TOC、含气量以及地化分析数据,将划分的9个开发小层与渝东地区典型开发井对比,发现咸地2井开发小层①—④与焦页1井和彭页1井的划分小层①—④具有横向可对比性,因此咸地2井小层①—④也为优先开发小层,另因咸地2井的开发小层⑧的岩性、有机碳含量、含气性好,故也被列为优先开发小层。The Xiandi 2 well in the Xianfeng area of Hubei Province show a good gas display in the Upper Ordovician Wufeng Formation-Lower Silurian Longmaxi Formation shale.The shale of the Wufeng Formation-Longmaxi Formation of the Xiandi 2 well has the characteristics of high organic carbon content,large sediment thickness and high gas content.Through systematic analysis of drilling,logging,logging data of Longmaxi formationin in Xiandi 2 well.There are nine subdivisions.Fine development substratum contrast analysis of Xiandi 2 well division,focusing on the detailed study of its rock characteristics and sedimentary environment,etc,combined with logging data,TOC,gas content and geochemical analysis data,comparing the nine development subzones with typical development wells in the eastern Chongqing area.It is found that the development sublayers①②③and④of Xiandi-2 well have horizontal comparability with those of Jiaoye-1 well and Pengye-1 well through regional fine development sublayers comparison.Therefore,sub layers①②③and④of Xiandi 2 well are also priority development sub-layers.In addition,due to the good lithology,organic carbon content and gas bearing property of development sub-layer⑧of well Xiandi 2,they are also listed as priority development sub-layers.

关 键 词：层序 小层对比 五峰组—龙马溪组 

分 类 号：TE122[石油与天然气工程—油气勘探]