松辽盆地中基性火山岩有效储层物性下限研究

综合利用岩芯物性资料、压汞资料及试气资料,采用经验统计法、中值压力法、0.1μm进汞饱和度法、最小孔喉半径法和孔隙度-渗透率交会法确定下限值,并用试气法进行验证,得出松辽盆地南部W研究区中基性火山岩的孔隙度和渗透率下限值分别为3.558%和0.008 5×10~(-3)μm~2。

Research on lower limits of effective reservoir physical properties of intermediate-basic volcanic rock in Songliao Basin

With the integration of core physical property, mercury injection data and gas test data, the authors determined the lower limit value by empirical statistics, median pressure method, 0.1 μm mercury saturation method, pore throat radius method, porosity-permeability cross-po method, and used the method of gas testing for validation. It is concluded that porosity and permeability lower limit value were 3.558% and 0.008 5×10-3 μm2 for the intermediate-basic volcanic rocks of W studied area in southern Songliao Basin.