Sigma/porosity tools with neutron monitors

Simplified radon testing package

Simultaneous fluid flow and fluid density measurements using rot

Simultaneous gamma ray measurement of formation bulk density and

Simultaneous logging system for deep wells

Simultaneous neutron lifetime and oxygen activation and fluid sa

Simultaneous oxygen and silicon neutron activation well log usin

Simultaneous thermal neutron decay time and porosity logging sys

Simultaneous thermal neutron decay time and shale compensated ch

Site survey method and apparatus

Sourceless downhole X-ray tool

Spectral gain stabilization using gross shape features of largel

Spectral gamma ray logging-while-drilling system

Spectrometric gamma diagraphy system for the determination of th

Stabilized radioactive logging method and apparatus

Stand-off compensated formation measurements apparatus and metho

Stand-off compensation for nuclear MWD measurement

Standoff compensation for nuclear logging while drilling systems

Standoff compensation for nuclear measurements

Standoff compensation for nuclear measurements