LandOfFree - US Patents - Listing for Electricity: measuring and testing,Of geophysical surface or subsurface in situ,Using electrode arrays, circuits, structure, or supports

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Induced polarization method using towed cable carrying...

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Induced polarization system using towed cable carrying...

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Insulating and electrode structure for a drill string

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Insulating segment for a drill string electrode structure

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Logging apparatus for measurement of earth formation resistivity

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Logging apparatus having a wall engaging pad with longitudinally

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Logging method and apparatus for investigating geometrical chara

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Logging method and apparatus for measuring earth formation resis

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Logging method and apparatus for measuring the Grondingen effect

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Logging tool sonde sleeve

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Low noise, towed electromagnetic system for subsurface...

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Low resistance, fluid replenishing, reference cell and method fo

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Marine electromagnetic measurement system

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Marine oil and gas exploration system using telluric...

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Measurement device and support for use in a well

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Measuring and evaluating surface potentials for determining the

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Measuring focused through-casing resistivity using induction...

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Measuring pad arrangement for a logging sonde

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Measuring resistivity changes from within a first cased well to