US 12,404,740 B2
Sacrificial tool for plugging and abandoning a wellbore and methods thereof
Ibrahim A. Obaidi, Dhahran (SA); Nawaf S. Shammari, Dhahran (SA); and Abdulrahman K. Assiri, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Mar. 9, 2023, as Appl. No. 18/181,496.
Prior Publication US 2024/0301765 A1, Sep. 12, 2024
Int. Cl. E21B 31/18 (2006.01); E21B 33/14 (2006.01); E21B 47/10 (2012.01)
CPC E21B 33/14 (2013.01) [E21B 31/18 (2013.01); E21B 47/10 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method, comprising:
conveying a sacrificial tool into a wellbore coupled to a conveyance after a downhole tool has become stuck in the wellbore, the sacrificial tool including:
an overshot fishing tool;
a tubing operatively coupled to and extending from the overshot fishing tool; and
a liner hanger arranged at an upper end of the tubing;
conveying a fluid through the conveyance and to the sacrificial tool prior to receiving an uphole end of the downhole tool within the overshot fishing tool;
discharging the fluid into the wellbore from the overshot fishing tool prior to receiving the uphole end of the downhole tool within the overshot fishing tool;
recording one or more measurements selected from the group consisting of a surface pressure, a pick up weight, a slack off weight, and circulation flow rate prior to receiving the uphole end of the downhole tool within the overshot fishing tool;
receiving the uphole end of the downhole tool within the overshot fishing tool;
sealingly engaging the uphole end of the downhole tool;
conveying the fluid through the sacrificial tool and the downhole tool after sealingly engaging the uphole end of the downhole tool;
discharging the fluid from the downhole tool into the annulus after sealingly engaging the uphole end of the downhole tool;
confirming proper engagement of the sacrificial tool with the downhole tool upon recording an increase in the surface pressure and the pick-up weight, and recording a decrease in the slack off weight after sealingly engaging the uphole end of the downhole tool; and
circulating a cement through the sacrificial tool and the downhole tool and discharging the cement into an annulus defined between the downhole tool and an inner wall of the wellbore.