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利用钻探资料求地质体产状,常通过同一层位上的三点求解,即所谓“三点法”.但如果利用岩心轴夹角数据,则只需要两点.斜孔时,还不要求钻孔穿过同一层位.一、利用直孔岩心轴夹角求解直孔岩心轴夹角的余角,就是地层的倾角.由于岩心在钻具中的转动,地层倾向无法知道.但岩心轴夹角将因此形成圆锥.这一圆锥的所有切面,都可能是地层的产状.两个直孔岩心轴夹角所绘圆锥的公切面,就
The use of drilling data to find the geological body shape, often through the same level on the three-point solution, the so-called “three point method.” But if you use the core axis angle data, you only need two. Does not require drilling through the same level.First, the use of angle between the straight hole mandrel axis to solve the angle between the straight hole mandrel angle, is the dip of the formation.Because the core in the drilling tool, the formation inclination can not know.But The angle between the axes of the cores will thus form a cone, and all the planes of this cone may be of the formation type.