Laser induced phosphorescence uranium analysis

Lithology determination from the calcium and magnesium activatio

Locating underground uranium deposits

Log-inject-log in sand consolidation

Logging apparatus and method

Logging apparatus and method

Logging apparatus and method

Logging apparatus and method for determining absolute elemental

Logging device having bimetallic insulating flask

Logging method and apparatus for correcting natural gamma ray me

Logging method and apparatus using a pad to measure density

Logging subsurface formations for porosity

Logging technique for assaying for uranium in earth formations

Logging tool for measuring the macroscopic thermal neutron captu

Logging tool with a parasitic radiation shield and method of...

Logging tool with response invariant to changes in borehole...

Logging type subsidence detector

Logging while drilling method and apparatus for measuring format

Logging-while-drilling optical apparatus

Long life oil well logging assembly