Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and apparatus for logging a borehole employing dual radiation detectors

Method and apparatus for logging a borehole employing dual radiation detectors

US Patent 4604522 · Granted Aug 5, 1986

Estimated economic value: $3,515,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Auxiliary bearing system1998
Auxiliary bearing system1998
Auxiliary bearing system1997
Zero-spaced epithermal neutron moisture detection system1996
Oxygen activation method for quantitative water flow measurements within and beh1995
Method and apparatus for measuring horizontal fluid flow in downhole formations 1991
Simultaneous fluid flow and fluid density measurements using rotameter and nucle1991
Directional gamma ray spectrometer1991
Tracer injection method1989
Gamma ray borehole logging method and apparatus having compensation for borehole1989
Multi-function natural gamma ray logging system1986
Method for logging fluid flow rate, water fraction, and/or salinity of water flo1986