Winstead PC
Apparatus and method for wellbore imaging in oil-based mud
An oil-based mud wellbore imaging apparatus for measuring formation permittivity and resistivity includes a reflectometry-type microwave scanning system. The system contains at least one high-Q microstrip resonator with one or more slots on the top surface. The microstrip resonator is excited by one port, which is fed with electromagnetic signals by a coaxial cable. From the phase detection of signal at the port, the formation resistivity and permittivity can be determined and corresponding borehole images can be generated.
UNIVERSITY OF HOUSTON SYSTEM
G E G E G
G01N E21B G01V E21B G01N
inventional inventional inventional inventional inventional
Xinyu David R. Jiefu
Liu Jackson Chen