US 12,134,954 B2
Interventionless injection safety valve
Justin David Elroy Lamb, Arcola, TX (US); Garis Mccutcheon, Missouri City, TX (US); Francesco Vaghi, Houston, TX (US); Hy Phan, Houston, TX (US); Marco Quilico, Pearland, TX (US); and Jason Henry, Houston, TX (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Appl. No. 18/002,061
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Jun. 25, 2021, PCT No. PCT/US2021/039071
§ 371(c)(1), (2) Date Dec. 16, 2022,
PCT Pub. No. WO2021/263092, PCT Pub. Date Dec. 30, 2021.
Claims priority of provisional application 63/044,750, filed on Jun. 26, 2020.
Prior Publication US 2023/0220745 A1, Jul. 13, 2023
Int. Cl. E21B 34/06 (2006.01); E21B 34/12 (2006.01); E21B 34/14 (2006.01)
CPC E21B 34/125 (2013.01) [E21B 34/063 (2013.01); E21B 34/14 (2013.01); E21B 2200/08 (2020.05)] 16 Claims
OG exemplary drawing
 
1. 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.