E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/18 (2006.01) E21B 47/022 (2006.01) E21B 47/06 (2006.01) E21B 47/09 (2006.01)
Patent
CA 2573524
An improved energy efficient intelligent pulser driver used for generating a mud pulse in a MWD (measurement while drilling) application. In the pulser driver, a direct current (DC) powered control circuit activates a three-phase DC brushless motor that operates a servo- valve. Opening of the servo-valve equalizes pressure in a plenum causing the operation of a main valve reducing flow area and causing a pressure spike in the mud column. Closing of the servo-valve creates a reduction in mud pressure that operates the main valve and increases the flow area causing an end to the pressure spike. The servo-valve is powered both in opening and closing operations by the motor.
Lambe Kenneth A.
Pratt Dale F.
Schmidt Axel M.
Borden Ladner Gervais Llp
Newsco Directional And Horizontal Drilling Services Inc.
LandOfFree
Intelligent efficient servo-actuator for a downhole pulser does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Intelligent efficient servo-actuator for a downhole pulser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intelligent efficient servo-actuator for a downhole pulser will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1666132