Device and method for locating an inground object and a housing
Device and method for measurement by guided waves on a metal...
Device and method for measurement of resistivity outside of...
Device and process for determination of the resistivity of a...
Device for automatically compensating the magnetism of drill str
Device for determining depth and direction of buried objects
Device for direct and continuous receiving and measuring of elec
Device for electrode-type electrical logging tools and tool inco
Device for locating objects that emit electromagnetic signals
Device for locating steel rods buried in high-density reinforced
Device for measuring an electrical parameter through...
Device for measuring electrical field gradient componets of the
Device for measuring shifts in mountains
Device for measuring soil conductivity
Device for monitoring of oil-water interface
Device for scanning or detecting electromagnetic waves
Device for the detection of objects, especially explosive object
Device including plural wire detecting coils having faulty coil
Dielectric constant well logging with current and voltage electr
Dielectric methods and apparatus for in situ prediction of poros