公开(公告)号：US11487033B2

公开(公告)日：2022-11-01

申请号：US17137550

申请日：2020-12-30

Applicant: CGG SERVICES SAS

Inventor： Roberto Pereira ,  Adel Khalil

IPC: G01V1/28 ,  G01V1/00 ,  G01V1/30 ,  G01V1/34 ,  G01V1/36

Abstract: Seismic exploration of an underground formation uses seismic excitations to probe the formation's properties such as reflectivity that can be imaged using reverse time migration. Using an equal area spherical binning at reflection points improves and simplifies RTM imaging together with adaptability to the data acquisition geometry, while overcoming drawbacks of conventional cylindrical binning.

公开(公告)号：US11487035B2

公开(公告)日：2022-11-01

申请号：US16851825

申请日：2020-04-17

Applicant: CGG SERVICES SAS

Inventor： Adel Khalil ,  Carlos Alberto Da Costa Filho ,  Roberto Pereira ,  Gregório Goudel Azevedo

IPC: G01V1/36 ,  G01V1/28 ,  G01V1/48 ,  G06F17/17 ,  G06T7/00

Abstract: Methods and apparatuses for seismic data processing perform a least-squares reverse time migration method in which surface-attribute-independent coefficients for the surface attribute gathers are demigrated to reduce the computational cost.