US 11,965,997 B2
Determining fault surfaces from fault attribute volumes
Xuan Nam Nguyen, Katy, TX (US); and Alejandro Jaramillo, Edinburgh (GB)
Assigned to Landmark Graphics Corporation, Houston, TX (US)
Filed by Landmark Graphics Corporation, Houston, TX (US)
Filed on Oct. 19, 2021, as Appl. No. 17/505,033.
Prior Publication US 2023/0117096 A1, Apr. 20, 2023
Int. Cl. G01V 1/30 (2006.01)
CPC G01V 1/301 (2013.01) [G01V 1/306 (2013.01); G01V 1/302 (2013.01); G01V 2210/65 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a processor; and
a memory that includes instructions executable by the processor for causing the processor to:
receive a fault attribute volume for faults in a subterranean formation, the fault attribute volume comprising a plurality of traces having a plurality of trace locations;
determine a set of fault samples for each trace location of the plurality of trace locations, each fault sample of the set of fault samples comprising a plurality of fault attributes including a vertical thickness value, wherein the vertical thickness value comprises a difference between a start depth and an end depth for the fault sample at the trace location;
determine a dip value and an azimuth value for each fault sample of each trace location of the plurality of trace locations using the plurality of fault attributes;
determine fault surfaces for the faults using the plurality of fault attributes, dip value, and azimuth value for each fault sample of the set of fault samples; and
output the fault surfaces for use in a hydrocarbon extraction operation.