期刊文献+

鄂尔多斯盆地H8井区长6油层组砂岩储层特征 被引量:5

The reservoirCharacteristics of C6 reservoir set in H8 well area of Ordos Basin
下载PDF
导出
摘要 综合应用储层露头、岩心观察、铸体薄片、扫描电镜、压汞实验等分析资料,对鄂尔多斯盆地H8井区长6油层组储层岩石学、物性、孔隙类型及结构特征等进行综合分析。结果表明:长6油层组储层岩性主要为细粒长石砂岩,成分成熟度较低,结构成熟度属于中等-差;储层物性较差,为典型的特低孔、超低渗透储层;发育粒间孔及溶蚀孔,喉道类型主要以片状和弯片状喉道为主;长6储层可划分为三类,Ⅰ类为低门槛压力-高进汞饱和度型,物性最好,Ⅱ类为中门槛压力-中进汞饱和度型,物性次之,Ⅲ类为高门槛压力-低进汞饱和度型,物性最差。压实作用、碳酸盐岩矿物胶结是造成储层物性变差的主要原因,溶蚀作用对储层物性起改善作用。以上研究成果为H8井区下步勘探开发提供了地质依据。 The petrological characteristics of C6 oil reservoir set,physical properties,pore type and pore structure characteristics of reservoir in H8 well area of Ordos Basin are studied by means of outcrop,core observation,cast section,scanning electron microscope,pressured mercury testing data and other experimental data.The results show that,the C6 reservoir set is mainly made up of fine feldspathic sandstone with low compositional maturity and middle-poor texture maturity.The reservoir physical property is poor and it is typical super-low porosity,ultra-low permeability reservoir.The intergranular pore and dissolution pore are developed,the reservoir throat type are sheets and bent sheet throat.The C6 reservoir is classified into three types:typeⅠhas low threshold pressure and high maximum saturation of mercury,the physical property is best,typeⅡhas middle threshold pressure and middle saturation of mercury,the physical property is second,typeⅢhas high threshold pressure and low saturation of mercury,the physical property is worst.Compaction and cementation in carbonate mineral are the main factor for causing poor reservoir properties,the dissolution improves reservoir properties.The results of this study provide a geological basis for the next exploration and development for C6 oil reservoir set in H8 well area.
作者 梁卫卫 党海龙 杜林徽 尹虎 崔鹏兴 张亮 Liang Weiwei;Dang Hailong;Du Linhui;Yin Hu;Cui Pengxing;Zhang Liang(Research Institute of Shannxi Yanchang Petroleum(Group)Co.Ltd.,Xi'an,710075,China;Fuxian oil production plant,Shannxi Yanchang Oil Field Co.Ltd,Yan'an,727500,China;Shaanxi Key Laboratory of Carbon Dioxide Sequestration and Enhanced Oil Recovery,Xi'an,Shaanxi 710075,China)
出处 《非常规油气》 2019年第6期23-28,共6页 Unconventional Oil & Gas
基金 陕西省科技统筹创新工程计划项目"提高延长油田主力油层开发效果系统工程关键技术研究"(2012KTZB01-04)资助
关键词 鄂尔多斯盆地 长6油层组 储层特征 成岩作用 Ordos Basin Chang 6 oil reservoir set Reservoir Characteristics Diagenesis
  • 相关文献

参考文献15

二级参考文献132

共引文献132

同被引文献81

引证文献5

二级引证文献26

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部