US 12,410,702 B2
Toe sleeves and methods of use
Sean Canning, Carrollton, TX (US); Joseph Ray Collins, Carrollton, TX (US); and Daniel Keith Moeller, Carrollton, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jan. 19, 2024, as Appl. No. 18/417,222.
Prior Publication US 2025/0237135 A1, Jul. 24, 2025
Int. Cl. E21B 47/06 (2012.01); E21B 34/06 (2006.01)
CPC E21B 47/06 (2013.01) [E21B 34/063 (2013.01); E21B 2200/08 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A toe sleeve for use downhole in a well comprises:
a housing having a longitudinal bore and one or more ports;
a sleeve having a closed position and an open position;
a degradable retention mechanism, configured to hold the sleeve in the closed position; and
a non-degradable retention mechanism, configured to hold the sleeve in the closed position;
wherein:
the one or more ports each extend radially from the bore to an exterior of the housing;
in the closed position, the sleeve closes the ports;
in the open position, the sleeve exposes the ports, thereby allowing fluid communication therethrough;
the non-degradable retention mechanism is configured with a lower opening pressure than the degradable retention mechanism; and
the degradable retention mechanism is configured to prevent movement of the sleeve and release of the non-degradable retention mechanism during pressure testing.