粘土矿物在储层定量评价及预测中的应用——以苏北盆地台兴油田阜三段储层为例  

Application of clay mineral to quantitative evaluation and prediction of reservoir-taking Fu3 member reservoir, Taixing Oilfield, Suber Basin as an example

作　　者：程晓玲[1] 何将启[1] 梁世友[1] 

机构地区：[1]中国石化勘探开发研究院无锡石油地质研究所,江苏无锡214151

出　　处：《油气地质与采收率》2006年第1期17-19,共3页Petroleum Geology and Recovery Efficiency

基　　金：中国石化新星石油公司科研项目"台兴油藏精细描述"(XYK2001-41)

摘　　要：以苏北盆地台兴油田阜三段储层为例,根据岩心铸体薄片、普通薄片、X-衍射、扫描电镜微观图像的观察及压汞的测试数据,分析了粘土矿物类型、相对含量的变化与储层面孔率的定量关系,研究了粘土矿物对孔隙结构、岩石渗透性及产能的影响,结合其他成岩作用对储层进行定量评价和预测。分析表明,当粘土矿物在全岩中的含量为6%～10%,粘土矿物中高岭石相对含量为50%～70%,绿泥石或伊利石相对含量为13%～34%,则面孔率为10%～18%;随着高岭石相对含量减少,绿泥石、伊利石相对含量增加,面孔率及平均配位数降低,孔隙结构变差,产能由较稳定变为不稳定,产量降低较快。实际应用证实,台兴油田阜三段储层平面上由北东到西南储层物性由好变差,产能降低。Taking the reservoir in the third member of Funing group in the Taixing Oilfield of Subei Basin as an example, the quantitative relationship among clay mineral type, the change of its relative content and areal porosity of reservoir was analyzed based on observation of core cast thin section,conventional thin section,X -diffraction, microscopic image of SEM and testing data of mercury penetration. The influence of the clay mineral on the pore structure, rock permeability and productivity was discussed. The reservoirs were quantitatively evaluated and predicted combined with other diageneses. The results demonstrated that areal porosity would reach 10% - 18% while the clay mineral content in the whole rock reached 6% ~ 10% , kaolinic relative content in the clay mineral was 50% -70% .chlorite or illite relative content in the clay mineral was 13% ~ 34%. Areal porosity and average coordination number would reduce, the pores structure would become bad, productivity changed from stability to unstability, and oil production reduced more quickly along with the reduction of the kaolinic relative content and increase of the chlorite and illite relative content. Actual application proved that the physical property of the reservoir became bad and the productivity reduced from north - east to west - south in the third member of Funing group in the Taixing Oilfield.

关 键 词：粘土矿物 矿物转化 孔隙结构 岩石渗透性 产能 储层评价 

分 类 号：TE311[石油与天然气工程—油气田开发工程]