US 12,189,074 B2
Event continuity mapping using seismic frequency analysis
Maher I. Almarhoon, Al Qatif (SA); and Wisam AlKawai, Qatif (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Dec. 10, 2021, as Appl. No. 17/643,647.
Prior Publication US 2023/0184980 A1, Jun. 15, 2023
Int. Cl. G01V 1/50 (2006.01)
CPC G01V 1/50 (2013.01) [G01V 2210/48 (2013.01); G01V 2210/63 (2013.01)] 12 Claims
OG exemplary drawing
 
8. A system, comprising:
a seismic acquisition system configured to obtain a post-stacked seismic image of a subterranean region of interest;
a computer system configured to:
receive the post-stacked seismic image,
identify a horizon and a reference horizon within the post-stacked seismic image,
wherein the horizon and the reference horizon are different horizons,
determine a spectral section over the horizon by applying spectral decomposition within a frequency range to the post-stacked seismic image within the horizon,
determine a reference spectral section over the reference horizon by applying spectral decomposition within the frequency range to the post-stacked seismic image within the reference horizon,
detect a frequency anomaly within the spectral section by comparing the spectral section to the reference spectral section,
identify a multiple-artifact based on the frequency anomaly, and
determine a wellbore path based upon the post-stacked seismic image and the multiple-artifact; and
a drilling system configured to drill a wellbore based, at least in part, upon the wellbore path.