Inventor
MCCALVIN DAVID E
US7 patents
⚠️ This page may combine multiple inventors who share the name “MCCALVIN DAVID E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
5 patentsUS6513594B1Feb 4, 2003
Subsurface safety valve
SCHLUMBERGER TECHNOLOGY CORP60 citations95
US7231971B2Jun 19, 2007
Downhole safety valve assembly having sensing capabilities
SCHLUMBERGER TECHNOLOGY CORP33 citations90
US7866401B2Jan 11, 2011
Safety valve for use in an injection well
SCHLUMBERGER TECHNOLOGY CORP18 citations82
US7114572B2Oct 3, 2006
System and method for offshore production with well control
SCHLUMBERGER TECHNOLOGY CORP8 citations68
US7621331B2Nov 24, 2009
Fluid communication nipple having an interior passageway with an interior wall section that may be opened to establish fluid communication with the passageway
SCHLUMBERGER TECHNOLOGY CORP1 citations45