公开(公告)号：US11940592B2

公开(公告)日：2024-03-26

申请号：US17150142

申请日：2021-01-15

Applicant: ARAMCO SERVICES COMPANY

Inventor： Yanhui Han ,  Dung Phan ,  Khalid AlRuwaili

IPC: G01V99/00 ,  E21B47/005 ,  E21B47/007 ,  E21B49/00

CPC classification number: G01V99/005 ,  E21B47/005 ,  E21B47/007 ,  E21B49/00 ,  E21B2200/20

Abstract: A method for evaluating an integrity of a liner disposed in a wellbore, that contacts a formation through a cement layer between the liner and the formation, includes computing a stress on a boundary of the liner by an iteration procedure that implements an analytical solution of stresses on a liner-cement interface and a cement-formation interface using the geometric data, performing numerical simulations using the computational numerical model to calculate a magnitude and distribution of stresses acting on the liner-cement interface and the cement-formation interface, performing numerical simulations with the actual in-situ stresses to replace the mean in-situ stress on the outer boundary of formation layer to calculate magnitude and distribution of stresses acting on the liner-cement and cement-formation interfaces using the calibrated computational mesh and applying the calculated stresses acting on the liner to a liner integrity evaluation model to determine an integrity of the liner at a plurality of stages of the wellbore.

公开(公告)号：US20220229950A1

公开(公告)日：2022-07-21

申请号：US17150142

申请日：2021-01-15

Applicant: ARAMCO SERVICES COMPANY

Inventor： Yanhui Han ,  Dung Phan ,  Khalid AlRuwaili

IPC: G06F30/20 ,  E21B47/005 ,  E21B49/00 ,  E21B47/007 ,  G01V99/00

Abstract: A method for evaluating an integrity of a liner disposed in a wellbore, that contacts a formation through a cement layer between the liner and the formation, includes computing a stress on a boundary of the liner by an iteration procedure that implements an analytical solution of stresses on a liner-cement interface and a cement-formation interface using the geometric data, performing numerical simulations using the computational numerical model to calculate a magnitude and distribution of stresses acting on the liner-cement interface and the cement-formation interface, performing numerical simulations with the actual in-situ stresses to replace the mean in-situ stress on the outer boundary of formation layer to calculate magnitude and distribution of stresses acting on the liner-cement and cement-formation interfaces using the calibrated computational mesh and applying the calculated stresses acting on the liner to a liner integrity evaluation model to determine an integrity of the liner at a plurality of stages of the wellbore.