Inventor
HOLENKA JACQUES M
US9 patents
Patents
9 patentsUS5804820ASep 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
US5250806AOct 5, 1993
Stand-off compensated formation measurements apparatus and method
SCHLUMBERGER TECHNOLOGY CORP130 citations97
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
US4661700AApr 28, 1987
Well logging sonde with shielded collimated window
SCHLUMBERGER TECHNOLOGY CORP68 citations95
US5539225AJul 23, 1996
Accelerator-based methods and apparatus for measurement-while-drilling
SCHLUMBERGER TECHNOLOGY CORP86 citations94
USRE36012EDec 29, 1998
Accelerator-based methods and apparatus for measurement-while-drilling
SCHLUMBERGER TECHNOLOGY CORP39 citations91
US5023449AJun 11, 1991
Nuclear spectroscopy signal stabilization and calibration method and apparatus
SCHLUMBERGER TECHNOLOGY CORP42 citations86
US5635711AJun 3, 1997
Apparatus and method for the suppression of microphonic noise in proportional counters for borehole logging-while-drilling
SCHLUMBERGER TECHNOLOGY CORP9 citations72