摘要
页岩中粉砂质纹层/夹层对页岩气储层的储集性能和含气性、运移疏导和压裂开发等有重要的意义。对昆明地区筇竹寺组页岩露头剖面中发育的粉砂质夹层和纹层进行了研究,结果表明:1)粉砂质夹层/纹层与黑色纯页岩层在颜色、结构、形态、粒度和矿物成分上具有明显的差异;2)在纵向上,纹层/夹层分布及单层厚度非均质较强;3)分形维数为0.702,其值较小,可能指示了页岩中粉砂质夹层/纹层厚度之间的差异更大的特点。该研究结果可用于估算相邻地区或相同环境的筇竹寺组页岩的相关参数。
The silty interlayer/laminae in shale has important significance for reservoir property,gas-bearing properties,gas migration and fracturing development of shale gas.The silty interlayer/laminae developed in Qiongzhusi Formation outcrop section in Kunming were studied.The results show that:1)the silty interlayer/laminae and pure black shale layer have obvious differences in color,structure,morphology,grain size and mineral composition;2)In the longitudinal direction,the distribution and single layer thickness of silty interlayer/laminae are relatively heterogeneous;3)The fractal dimension is0.702,which is small and may indicate the big difference between the single layer thickness of the silty interlayer/laminar in the shale.The results can be used to estimate the relevant parameters of Qiongzhusi Formation shale in adjacent areas or the same sedimentary environment.
作者
程涌
聂琪
刘聪
文义明
林吉飞
夏建波
CHENG Yong;NIE Qi;LIU Cong;WEN Yiming;LIN Jifei;XIA Jianbo(Faculty of Metallurgy and Mining Engineering,Kunming Metallurgy College,Kunming 650033,China;Faculty of Land and Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China)
出处
《昆明冶金高等专科学校学报》
CAS
2019年第4期29-35,共7页
Journal of Kunming Metallurgy College
基金
云南省应用基础研究计划“滇东北下古生界页岩储层特征及其甲烷吸附性能研究”(2015FD052)
昆明冶金高等专科学校科研基金“滇东会泽地区下寒武统筇竹寺组黑色岩系成因及成矿成藏意义”(2019XJZK08)
关键词
分形特征
分形维数
筇竹寺组
页岩气
粉砂质夹层/纹层
fractal features
fractal dimension
Qiongzhusi formation
shale gas
silty interlayer/laminae
