Inventor
KOSTEK SERGIO
US8 patents
Patents
8 patentsUS5852587ADec 22, 1998
Method of and apparatus for sonic logging while drilling a borehole traversing an earth formation
SCHLUMBERGER TECHNOLOGY CORP117 citations95
US5475650ADec 12, 1995
Measurement of nonlinear properties of formation using sonic borehole tool while changing pressure in borehole
SCHLUMBERGER TECHNOLOGY CORP70 citations95
US5398215AMar 14, 1995
Identification of stress induced anisotropy in formations
SCHLUMBERGER TECHNOLOGY CORP100 citations95
US5796677AAug 18, 1998
Method of sonic logging while drilling a borehole traversing an earth formation
SCHLUMBERGER TECHNOLOGY CORP85 citations94
US5521882AMay 28, 1996
Measurement of formation characteristics using acoustic borehole tool having sources of different frequencies
SCHLUMBERGER TECHNOLOGY CORP100 citations94
US5485431AJan 16, 1996
Measurement of nonlinear formation parameters using sonic borehole tool
SCHLUMBERGER TECHNOLOGY CORP21 citations92
US5309404AMay 3, 1994
Receiver apparatus for use in logging while drilling
SCHLUMBERGER TECHNOLOGY CORP26 citations92
US5646379AJul 8, 1997
Attentuator for borehole acoustic waves
SCHLUMBERGER TECHNOLOGY CORP18 citations89