Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Electromagnetic wave logging dipmeter

Electromagnetic wave logging dipmeter

US Patent 4422043 · Granted Dec 20, 1983

Estimated economic value: $7,639,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Retrievable, formation resistivity tool, having a slotted collar2002
Well logging system arranged for stable, high-sensitivity reception of propagati1997
Method and apparatus for logging-while-drilling with improved performance throug1995
High sensitivity well logging system having dual transmitter antennas and interm1992
Drill stem logging with electromagnetic waves and electrostatically-shielded and1988
System for monitoring formation spontaneous potential and polarization constant 1986
Dielectric well logging system with at least three transmitter coils and at leas1986
Transformer cable connector1986
Electrical resistivity measurement of a flowing drilling fluid using eddy curren1985
Dielectric well logging system with electrostatically shielded coils1985
Crude oil production stream analyzer1984
Logging tool and method for measuring resistivity of different radial zones at a1984