Inventor
EVANS MICHAEL L
US21 patents
⚠️ This page may combine multiple inventors who share the name “EVANS MICHAEL L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
15 patentsUS5608215AMar 4, 1997
Method and apparatus for determining density of earth formations
SCHLUMBERGER TECHNOLOGY CORP112 citations98
US5804820ASep 8, 1998
Method for determining density of an earth formation
SCHLUMBERGER TECHNOLOGY CORP135 citations97
US5513528AMay 7, 1996
Logging while drilling method and apparatus for measuring standoff as a function of angular position within a borehole
SCHLUMBERGER TECHNOLOGY CORP122 citations97
US5767510AJun 16, 1998
Borehole invariant porosity measurement system
SCHLUMBERGER TECHNOLOGY CORP61 citations96
US5473158ADec 5, 1995
Logging while drilling method and apparatus for measuring formation characteristics as a function of angular position within a borehole
SCHLUMBERGER TECHNOLOGY CORP118 citations96
US5539225AJul 23, 1996
Accelerator-based methods and apparatus for measurement-while-drilling
SCHLUMBERGER TECHNOLOGY CORP86 citations94
US6285026B1Sep 4, 2001
Borehole caliper derived from neutron porosity measurements
SCHLUMBERGER TECHNOLOGY CORP28 citations91
USRE36012EDec 29, 1998
Accelerator-based methods and apparatus for measurement-while-drilling
SCHLUMBERGER TECHNOLOGY CORP39 citations91
US6944548B2Sep 13, 2005
Formation evaluation through azimuthal measurements
SCHLUMBERGER TECHNOLOGY CORP44 citations89
US5086224AFeb 4, 1992
Analysis of nuclear data for determining characteristics of earth formations traversed by a borehole
SCHLUMBERGER TECHNOLOGY CORP14 citations74
US9052404B2Jun 9, 2015
Well-logging apparatus including azimuthally-spaced, noble gas-based detectors
SCHLUMBERGER TECHNOLOGY CORP2 citations62
US6903330B2Jun 7, 2005
Multi-point subsurface measurement calibration
SCHLUMBERGER TECHNOLOGY CORP5 citations61
US10502046B2Dec 10, 2019
Sensor standoff
SCHLUMBERGER TECHNOLOGY CORP1 citations56
US8969792B2Mar 3, 2015
Apparatus and methods for measuring formation characteristics
SCHLUMBERGER TECHNOLOGY CORP0 citations52
US9268055B2Feb 23, 2016
Well-logging apparatus including azimuthally spaced radiation detectors
SCHLUMBERGER TECHNOLOGY CORP0 citations51