公开(公告)号：US20250059092A1

公开(公告)日：2025-02-20

申请号：US18450958

申请日：2023-08-16

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Vikrant Wagle ,  Rajendra Kalgoankar ,  Abdullah Al-Yami ,  Mohammad AlHarthi

IPC: C04B28/26 ,  C09K8/504 ,  C09K8/506

Abstract: A loss circulation material (LCM) includes an alkaline nanosilica dispersion and a formate activator. The formate activator may be present in an amount in a range of 1 wt % to 40 wt % of the loss circulation material. A method of controlling loss circulation in a loss circulation zone (LCZ) in a wellbore includes introducing an alkaline nanosilica dispersion into the wellbore, introducing a formate activator solution into the wellbore, contacting the alkaline nanosilica dispersion with the formate activator, thereby forming a LCM composition, and forming a gelled solid from the LCM in the loss circulation zone. A method of controlling loss circulation in a LCZ in a wellbore includes introducing a LCM that includes an alkaline nanosilica dispersion and a formate activator into the wellbore such that they contact the LCZ, and forming a gelled solid from the LCM in the LCZ.