US 12,291,937 B2
Self-setting plug
Ali Ssafwany, Safwa (SA); Ali S. Al-Mashhad, Al-Bustan (SA); and Rakan Al Yateem, Majidiyah (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on May 23, 2024, as Appl. No. 18/672,622.
Application 18/672,622 is a division of application No. 17/662,962, filed on May 11, 2022, granted, now 12,031,405.
Prior Publication US 2024/0309728 A1, Sep. 19, 2024
Int. Cl. E21B 33/134 (2006.01); E21B 31/12 (2006.01); E21B 33/13 (2006.01)
CPC E21B 33/13 (2013.01) [E21B 31/12 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method of utilizing a plug in wellbore tubing, the method comprising:
providing a plug comprising:
an internal portion;
a first external portion which surrounds the internal portion; and
a second external portion disposed axially adjacent to the first external portion, with respect to a central longitudinal axis of the plug;
displacing the plug downhole in the wellbore tubing;
expanding the second external portion to:
engage an interior surface of the wellbore tubing in response to a trigger as the plug displaces downhole through the wellbore tubing; and
create an annular gap between the second external portion and the internal portion to permit a fluid to progress in an uphole direction to the first external portion; and
expanding the first external portion to engage the wellbore tubing upon contact with the fluid.