Inventor
FONTENOT JOHN E
US7 patents
⚠️ This page may combine multiple inventors who share the name “FONTENOT JOHN E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NL INDUSTRIES INC
6 patentsUS4697650AOct 6, 1987
Method for estimating formation characteristics of the exposed bottomhole formation
NL INDUSTRIES INC74 citations94
US4733733AMar 29, 1988
Method of controlling the direction of a drill bit in a borehole
NL INDUSTRIES INC56 citations93
US4570480AFeb 18, 1986
Method and apparatus for determining formation pressure
NL INDUSTRIES INC42 citations92
US4747303AMay 31, 1988
Method determining formation dip
NL INDUSTRIES INC33 citations91
US4599904AJul 15, 1986
Method for determining borehole stress from MWD parameter and caliper measurements
NL INDUSTRIES INC46 citations91
US4810459AMar 7, 1989
Method and apparatus for determining true formation porosity from measurement-while-drilling neutron porosity measurement devices
NL INDUSTRIES INC19 citations72