US 11,719,063 B2
Freeing a stuck pipe from a wellbore
Najeeb Al-Abdulrahman, Dhahran (SA); Bandar S. Al-Malki, Dammam (SA); Magbel Alharbi, Dammam (SA); and Zainab Alsaihati, Saihat (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jun. 7, 2022, as Appl. No. 17/834,530.
Application 17/834,530 is a division of application No. 16/891,352, filed on Jun. 3, 2020, granted, now 11,391,104.
Prior Publication US 2022/0298880 A1, Sep. 22, 2022
Int. Cl. E21B 29/10 (2006.01); E21B 17/10 (2006.01); E21B 29/00 (2006.01); E21B 47/09 (2012.01); E21B 31/00 (2006.01); E21B 31/16 (2006.01)
CPC E21B 29/10 (2013.01) [E21B 17/1014 (2013.01); E21B 29/002 (2013.01); E21B 31/00 (2013.01); E21B 31/16 (2013.01); E21B 47/09 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of freeing a stuck pipe in a wellbore, the method comprising:
determining a stuck point along a drillstring comprising the stuck pipe; and
activating a pipe freeing tool coupled to the stuck pipe to apply a force to the stuck pipe, wherein:
the force moves the stuck pipe away from a surface of the wellbore and towards a center of the wellbore; and
the pipe freeing tool comprises a plurality of expandable disc elements, wherein:
each expandable disc element of the plurality of expandable disc elements comprises a seat within an annulus of the respective expandable disc element, and
activating the pipe freeing tool comprises seating a ball within the seat of an expandable disc element of the plurality of disc elements, wherein the ball is sized to correspond to a width of the respective seat.