E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/64
E21B 33/128 (2006.01) E21B 33/12 (2006.01) E21B 33/129 (2006.01) E21B 33/134 (2006.01)
Patent
CA 1224412
ABSTRACT REINFORCING ELEMENT AND DEMAND SENSITIVE PRESSURE INTENSIFIER FOR SEALING A WELL CASING A reinforcing element for an elastomeric sealing element for use within a well casing and passable through production tubing is formed of two metallic plate members having a plurality of radially extending projections, and the radially extending projections are bent and joined to one another to allow the reinforcing element to be passed through production tubing. A demand sensitive pressure intensifier for use with a hydraulic fluid pump and passable through production tubing has a means for compressing hydraulic fluid to a pressure which exceeds the maximum output pressure of the pump, and the compression means is selectively actuated when the output pressure of the pump reaches a predetermined pressure value.
466069
Schlumberger Canada Limited
Smart & Biggar
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