Non-elastomeric cement through tubing retrievable safety valve

Details Non-elastomeric cement through tubing retrievable safety valve Non-elastomeric cement through tubing retrievable safety valve

E - Fixed Constructions

21

B

E21B 34/10 (2006.01) E21B 34/08 (2006.01)

Patent

CA 2564579

The present invention generally relates to a non-elastomeric cement through tubing retrievable safety valve configured to control fluid flow through a production tubing string. In one aspect, a valve for use in a wellbore is provided. The valve includes a tubular body. The valve further includes a flow tube having a bore therethrough, wherein the flow tube is disposed in the tubular body to form an annular area therebetween. The valve further includes a flapper movable between an open position and a closed position in response to the movement of the flow tube. Additionally, the valve includes a sealing system constructed and arranged to substantially isolate the annular area from the bore, thereby substantially eliminating the potential of contaminants in the bore from entering into the annular area. In another aspect, a method of controlling fluid in a wellbore is provided.

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