4503 Spring Cypress Road
Spring, TX 77388
The ANTARES 1482 Pe Spectrum Density instrument includes a pad with a Cesium source emitting gamma rays and two detectors. From the energy spectrum and count rates of the two counters, the borehole compensated formation bulk density and a photo electric absorption index are calculated.
A caliper measurement is provided, permitting compensation for borehole effects. The pad device tool can be run in any mud except in barite mud, which absorbs the Gamma Rays and therefore affects the density reading heavily. A Correction Curve indicates the influence of the borehole rugosity.