Schlumberger LWD Azimuthal Density Neutron (AND)tool can measure the wellbore formation density in 16 sectors and provide the well bore formation density image. This azimuthal density measurement may be used to calculate the formation dip.

• Schlumberger公司的随钻方位密度测井(ADN)可以提供井周16个方位的密度成像资料,为过井眼的地质界面产状的计算提供了方便。