Inclination Survey : A survey to obtain the angle through which the bit was deflected form the vertical during drilling operations. Usually implies a survey where n azimuth readings are taken. (Bul D20)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}