US 12,000,238 B2
Latching tool float valve in combination with cement retainer
Ahmed Abdulaziz Al-Mousa, Dhahran (SA); Saad M. Budair, Dhahran (SA); and Hashim A. Awwami, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Jul. 31, 2023, as Appl. No. 18/362,580.
Application 18/362,580 is a division of application No. 17/682,408, filed on Feb. 28, 2022, granted, now 11,767,733.
Prior Publication US 2023/0374886 A1, Nov. 23, 2023
Int. Cl. E21B 33/14 (2006.01)
CPC E21B 33/14 (2013.01) 5 Claims
OG exemplary drawing
 
1. A method for cementing an annulus of a casing string, wherein a portion of the annulus is void of cement and a portion of the casing string has perforations in fluid communication with the portion of the annulus, the method comprising:
inserting an upper stinger bottom end of an upper stinger into a retainer aperture of a cement retainer, wherein a unidirectional flow valve is located within the retainer aperture;
running a tubing string, attached to an upper stinger top end of the upper stinger, into the casing string;
setting the cement retainer within the casing string above the portion of the annulus that is void of cement;
pumping cement through the tubing string, the upper stinger, the casing string, and the perforations into the portion of the annulus that is void of the cement;
disengaging the upper stinger from the cement retainer; and
reverse circulating the cement out of the tubing string through the upper stinger.