Drilling-workover vessel having a drill string extending through at least one swivel
A Standard patent application filed on 26 October 2000 credited to Poldervaart, Leendert
;
Wille, Hein
;
Perratone, Rene
Details
Application number :
15161
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Drilling-workover vessel having a drill string extending through at least one swivel