US 12,276,175 B1
Float shoe with anti-collapse feature for string cementation
Dautmammet Rejepov, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Oct. 27, 2023, as Appl. No. 18/496,775.
Int. Cl. E21B 33/13 (2006.01); E21B 33/05 (2006.01); E21B 33/14 (2006.01); E21B 34/06 (2006.01)
CPC E21B 33/13 (2013.01) [E21B 33/14 (2013.01); E21B 34/06 (2013.01); E21B 34/063 (2013.01); E21B 33/05 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A system for performing a cementing operation in a wellbore, the system comprising:
a stab-in stinger connected to a distal end of a drill string, wherein the stab-in stinger is configured to stab into a stab-in float shoe; and
a stab-in float shoe connected to a distal end of a casing that surrounds the drill string, wherein the stab-in float shoe is configured to permit flow a cement mixture into an annulus between the wellbore and the casing, the stab-in float shoe comprising:
a first check valve configured to prevent reverse flow of the cement mixture in the drill string,
a plug-type rupture disc housed in the stab-in float shoe, between the first check valve and an outlet of the stab-in float shoe, wherein the plug-type rupture disc is configured to rupture at a predetermined threshold pressure and, once ruptured, permits flow of the cement mixture from the annulus into the stab-in float shoe, and
a second check valve housed between the plug-type rupture disc and the outlet of the stab-in float shoe, wherein the second check valve is configured to prevent reverse flow of the cement mixture into the drill string.