公开(公告)号：US12228010B1

公开(公告)日：2025-02-18

申请号：US18405571

申请日：2024-01-05

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Amjad Alshaarawi ,  Zahrah Marhoon ,  Abdullah Atiyah ,  Ahmed Bukhamseen ,  Thomas Heinold ,  Peter Egbe ,  Alessandro Gallelli

IPC: E21B33/14 ,  E21B33/16 ,  E21B36/04

Abstract: A method includes running a eutectic alloy system downhole in a wellbore including a first casing string and a second casing string therein, activating a differential valve tool within the second casing to generate a primary annular seal within a casing-casing annulus defined between the first casing string and second casing string, pumping a flushing fluid into the casing-casing annulus above the primary annular seal via a first ported collar, melting a eutectic alloy blanket into a molten alloy within the flushing fluid in the casing-casing annulus via a heater, solidifying the molten alloy to establish a supplemental seal above the primary annular seal in the casing-casing annulus between the first casing string and second casing string, and pumping cement into the casing-casing annulus above the supplemental seal to form a cement column in the casing-casing annulus via a second ported collar.