Inventor
SUNDQUIST ROBERT W
US5 patents
Patents
5 patentsUS6371221B1Apr 16, 2002
Coring bit motor and method for obtaining a material core sample
SCHLUMBERGER TECHNOLOGY CORP70 citations94
US7581440B2Sep 1, 2009
Apparatus and methods to perform downhole measurements associated with subterranean formation evaluation
SCHLUMBERGER TECHNOLOGY CORP29 citations91
US6729416B2May 4, 2004
Method and apparatus for retaining a core sample within a coring tool
SCHLUMBERGER TECHNOLOGY CORP27 citations90
US6412575B1Jul 2, 2002
Coring bit and method for obtaining a material core sample
SCHLUMBERGER TECHNOLOGY CORP30 citations90
US7779684B2Aug 24, 2010
Apparatus and methods to perform downhole measurements associated with subterranean formation evaluation
SCHLUMBERGER TECHNOLOGY CORP12 citations83