多孔地层的骨架岩性指数和孔隙结构指数

根据最近(1986)提出的声波地层因素公式和传统的电阻率地层因素公式,利用美国岩心分析家协会新近(1988)公布的实验数据和其它文献上发表的数据,分析对比了粒间孔隙地层的骨架岩性指数和孔隙结构指数的关系,其中包括岩性、频率、压力、温度、及岩石的各向异性等因素对两指数m的影响,发现这两种指数总是正相关的。这表明,在粒间孔隙地层中声波的传播和电流的传导确实是可类比的。

Matrix Lithology Exponent of Porous Formation Versus Porosity Exponent

Based on the acoustic formation factor formula proposed recently and the conventional resistivity formation factor formula, and by using the data published by the Society of Core Analysts of America and other papers, the relationship between matrix lithology exponent x and the porosity exponent m is studied in this paper. The main contents include effects of litho]ogy, frequency, pressure, temperature and anisotropy of rock on exponents x and m, It is found that the two exponents are correlated positively which shows that in porous formation the transmission of sonic wave and the flow of electrical current are analogous.