公开(公告)号：US20250101850A1

公开(公告)日：2025-03-27

申请号：US18474986

申请日：2023-09-26

Applicant: ARAMCO SERVICES COMPANY

Inventor： Chicheng Xu ,  Tao Lin ,  Zainab Al Ibrahim ,  Yaser Abdullah Alzayer ,  Weichang Li ,  Lei Fu

IPC: E21B44/00 ,  G01N33/24 ,  G01V5/06 ,  G06T7/32

Abstract: A method may use a core sampling system for collecting a core sample with a reference log of a first property. The method may use a wellbore logging system for recording uncalibrated well logs with a target log of the first property. The method may use a computer processor for obtaining an uncalibrated geological model, determining a bulk-shift depth correction based on a first cost function, forming a bulk-shifted log by applying the bulk-shift depth correction to the target log, identifying a plurality of log event pairs, determining, for each of the log event pairs, a local-shift depth correction based on a second cost function, forming a local-shift depth correction table from the local-shift depth correction for the log event pairs, and forming a calibrated geological model based, at least in part, on the uncalibrated geological model and the local-shift depth correction table.