Interventionless injection safety valve
AssigneeSchlumberger Technology Corporation
InventorsJustin David Elroy Lamb, Garis Mccutcheon, Francesco Vaghi, Hy Phan, Marco Quilico, Jason Henry
Life of this patent
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Abstract
A safety valve includes a housing having a bore, a flow tube, and a valve closure member. The flow tube resides in the bore, is configured to move telescopically within the bore, and is adapted to shift the valve closure member between a closed position and an open position. The safety valve also includes an annular section between an inner surface of the housing and an outer surface of the flow tube, and means for preventing fluid flowing through the bore from entering the annular section.
Claims16
A safety valve, comprising:
- a housing having a bore;
- a flow tube residing in the bore and configured to move telescopically within the bore;
- an annular section between an inner surface of the housing and an outer surface of the flow tube;
- a valve closure member, wherein the flow tube is adapted to shift the valve closure member between a closed position and an open position;
- and
- a sacrificial material disposed in the bore and configured to prevent fluid flowing through the bore from entering the annular section.
A safety valve, comprising:
- a housing having a bore, wherein the bore comprises an internal profile;
- a flow tube residing in the bore and configured to move telescopically within the bore;
- an annular section between an inner surface of the housing and an outer surface of the flow tube;
- a valve closure member, wherein the flow tube is adapted to shift the valve closure member between a closed position and an open position;
- and
- a temporary barrier that adheres to and protects the internal profile by creating a seamless and continuous diameter within the bore, wherein the temporary barrier is configured to prevent fluid flowing through the bore from entering the annular section.
Dependencies are inferred from the claim text.