A Novel X-Ray Tool for True Sourceless Density Logging

摘要

Formation bulk density is classically measured by irradiating the formation with gamma rays emitted by a Cs-137 source, and counting the Compton scattered photons returning to the gamma-ray detectors in the well-logging instrument. Finding a suitable replacement for the Cs-137 source has been difficult. The X-ray source described in this paper appears to be a robust replacement for this type of source.