摘要
通过理论计算表明,砂岩的分散泥质含量E对△t-φ关系的影响不大。这样,在含E时,由声波测井时差△t仍能较精确地计算砂岩的孔隙度φ。
Theoretical calculation shows that scattered clay content E in sands cffects the relation-ship between φ and △t inconsiderably. Therefore, in sands containing scatteredclay, porosity φ can be evaluated accurately from acoustic log time difference △t.
