Inventor
BOURGOYNE DARRYL A
US7 patents
⚠️ This page may combine multiple inventors who share the name “BOURGOYNE DARRYL A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WEATHERFORD LAMB
5 patentsUS7258171B2Aug 21, 2007
Internal riser rotating control head
WEATHERFORD LAMB116 citations98
US7159669B2Jan 9, 2007
Internal riser rotating control head
WEATHERFORD LAMB169 citations98
US6913092B2Jul 5, 2005
Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling
WEATHERFORD LAMB131 citations98
US6470975B1Oct 29, 2002
Internal riser rotating control head
WEATHERFORD LAMB211 citations98
US7448454B2Nov 11, 2008
Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling
WEATHERFORD LAMB50 citations95
WEATHERFORD HOLDING U S INC
2 patentsUS6263982B1Jul 24, 2001
Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling
WEATHERFORD HOLDING U S INC169 citations98
US6138774AOct 31, 2000
Method and apparatus for drilling a borehole into a subsea abnormal pore pressure environment
WEATHERFORD HOLDING U S INC251 citations94