Overcenter valve control system and method for drilling

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

255/18

E21B 44/02 (2006.01) E21B 19/086 (2006.01)

Patent

CA 2019635

A drill feed control system for controlling the force exerted on a drill string having substantial weight. A feed cylinder, which has a first end and a second end, is connected to the drill string. Fluid is pumped from a reservoir to displace the feed cylinder. A first conduit is connected to the first end while a second conduit is attached to the second end. A variable displacement pump displaces fluid from the reservoir, within the first conduit, to the first end of the feed cylinder. A feed pressure control regulates the pressure of the variable displacement pump. An overcenter valve, which is connected to the second conduit, restricts the fluid exiting the second conduit. A relief valve controls the flow of fluid to a pilot conduit which extends between the first conduit and the overcenter valve. An orifice or check valve to release the pressure is connected to the pilot conduit such that the pressure in the pressure conduit will respond to a pressure increase or decrease in the first conduit. The pressure in the pilot conduit and the second conduit interact to open the overcenter valve.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Overcenter valve control system and method for drilling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Overcenter valve control system and method for drilling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Overcenter valve control system and method for drilling will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1762552

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.