E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/10
E21B 29/08 (2006.01) E21B 7/06 (2006.01) E21B 43/112 (2006.01)
Patent
CA 1278509
ABSTRACT OF THE DISCLOSURE A well casing penetrator includes an elongated housing enclosing an outwardly movable hydraulic cylinder driven punch fur cutting an opening in a casing. A high pressure liquid jet nozzle is mounted on the end of a hose which moves outwardly through an axial bore in the punch when extended through the casing to cut a radially extending opening in the surrounding earth. The punch includes arcuately curved longitudinal slots along opposite sides which cause tabs to be bent back along opposite sides of the opening cut in the casing to prevent dislodging of any portion of the casing from the casing as a consequence of the operation of the punch. A spool piston is connected to a single accumulator that is pressurized to urge the spool piston toward a first position in which work fluid controlled by the spool piston retracts the hydraulic punch cylinder and a hose drive cylinder for moving the hose in the punch. When the pressure is increased the accumulator is overcome and the punch cylinder and the hose drive cylinder are activated along with apparatus supplying work fluid to the hose to initiate a penetration operation. The parts return to their original retracted position upon lowering of the work pressure.
564905
Mcqueen Robert W.
Peters Alan D.
Schellstede Herman J.
Mcqueen Robert W.
Peters Alan D.
Schellstede Herman J.
Sim & Mcburney
LandOfFree
Hydraulic well penetration apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic well penetration apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic well penetration apparatus and method will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1264900