Kombinationsvorrichtung für Bohrlochmessung

摘要

The invention concerns a combination well logging device adapted to be moved inside a borehole to measure the properties of geological formations through which the borehole passes. The device according to the invention comprises a series of elongate logging sections mounted end to end, including a first section (15) adapted to be maintained with a generatrix applied against the wall of the borehole, a second section (17) comprising a body and a measurement pad (21) adapted to be spaced radially from the body for application against said wall, a third section (18) adapted to be kept space from said wall, and first and second hinges (23,25) connecting the second section (17) to the first (15) and third sections (18) respectively in order to allow respective angles of inclination between the second section (17) and the first (15) and third sections (18).