三水盆地宝月区块储层孔喉特征

Reservoir characteristics of the pore throat in Sanshui basin Bao Yue block

通过对宝月区块布心组油气藏取心井样品进行实验分析,应用铸体薄片、高压压汞等实验技术,明确了其储层孔喉特征。研究表明,布心组储层孔喉半径主要分布在0.25~23.53μm,压汞曲线数据显示布心组三段Ⅳ下小层粗孔喉孔隙体积比例较高,对渗透率贡献大。

The samples were taken from coring wells in the hydrocarbon reservoir of Buxin Formation in Baoyue block for testing and analyzing by means of casing body slice and high pressure Hg injection technologies.The research in this paper shows that the radius of the pore throats are mainly in the range of 0.25-23.53μm.The data of the mercury injection curve shows that the pore volume ratio of coarse pore throat in lower Ⅳ of interval three from Buxin Formation is relatively high and it leads to higher permeability.