US 12,129,738 B2
Multicycle valve system
Houssem Kharrat, Houston, TX (US); Laurent Alteirac, Missouri city, TX (US); Robert M. Graham, Houston, TX (US); Chandy Benjamin, Missouri City, TX (US); and Mohd Nazri Md Noor, Kuala Lumpur (MY)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 18/260,680
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Jan. 10, 2022, PCT No. PCT/US2022/011775
§ 371(c)(1), (2) Date Jul. 7, 2023,
PCT Pub. No. WO2022/159295, PCT Pub. Date Jul. 28, 2022.
Claims priority of provisional application 63/139,541, filed on Jan. 20, 2021.
Prior Publication US 2024/0060394 A1, Feb. 22, 2024
Int. Cl. E21B 34/14 (2006.01); E21B 34/06 (2006.01); E21B 34/08 (2006.01); E21B 34/12 (2006.01)
CPC E21B 34/14 (2013.01) [E21B 34/063 (2013.01); E21B 34/08 (2013.01); E21B 34/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for use in a well, comprising:
a tubing string having a toe valve system disposed along the tubing string to control fluid flow between an interior and an exterior of the tubing string positioned in a borehole, the toe valve system comprising:
an outer housing having at least one port to enable fluid flow between the interior and the exterior of the tubing string;
a shifting sleeve slidably mounted within the outer housing, the shifting sleeve biased by a shifting tool for movement between positions opening and closing the at least one port;
a retaining mechanism configured to resist movement of the shifting sleeve from a position in which the shifting sleeve leaves the at least one port open, the shifting tool configured to bias the shifting sleeve to overcome resistance of the retaining mechanism;
a piston sleeve slidably mounted within the outer housing for movement between positions closing and opening the at least one port; and
a chamber system having an atmospheric chamber connected with a piston chamber via a passageway initially blocked by a rupture member, the piston chamber initially containing a liquid and being located between the piston sleeve and the outer housing to provide a pressure balance between an interior and an exterior of the piston sleeve while the piston sleeve is in a position closing the at least one port, wherein sufficient application of pressure within the tubing string and against the piston sleeve causes the rupture member to rupture and to thus allow flow of the liquid from the piston chamber to the atmospheric chamber as the piston sleeve is shifted to a position opening the at least one port,
wherein the outer housing includes an outer housing release profile configured to facilitate release of the shifting tool from the shifting sleeve beyond a predetermined position in a first direction.