Emergency release device for drilling

Details Emergency release device for drilling Emergency release device for drilling

E - Fixed Constructions

21

B

E21B 29/00 (2006.01)

Patent

CA 2062360

90-191 A B S T R A C T A system for severing anchor cable mooring lines and oil well drill pipes is disclosed in which a primary hydraulic system containing a first fluid under pressure is utilized to actuate cutters and a secondary hydraulic system containing a second fluid under pressure is used to control valves which regulate the application of the first fluid to the cutters. The system is designed to operate independently of local power sources during an emergency.

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