	US 12,461,274 B2
	Method for obtaining geological heterogeneity trends of a geological formation
Yupeng Li, Beijing (CN); Maolin Luo, Dhahran (SA); Shouxiang Ma, Dhahran (SA); Peng Lu, Dhahran (SA); and Christopher Ayadiuno, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Appl. No. 18/247,505
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
PCT Filed Mar. 23, 2022, PCT No. PCT/CN2022/082500 § 371(c)(1), (2) Date Mar. 31, 2023, PCT Pub. No. WO2023/178553, PCT Pub. Date Sep. 28, 2023.
Prior Publication US 2024/0361490 A1, Oct. 31, 2024
Int. Cl. G01V 11/00 (2006.01); G06F 30/28 (2020.01)

CPC G01V 11/002 (2013.01) [G06F 30/28 (2020.01)]

15 Claims

1. A method for obtaining geological heterogeneity trends of a geological formation, comprising the steps:

drilling wells that penetrate the formation,

acquiring well logs for each well as function of depth intervals of the respective well,

determining a third degree tensor, where a z-dimension denotes the depths, a x-dimension denotes the well logs, and a y-dimension denotes the wells,

extracting matrices from the tensor,

clustering the matrices based on the characteristics of the corresponding well logs to a clustering result matrix,

aggregating the clustering result matrix to a cluster ensemble, and

spatial partitioning the cluster ensemble to a map that shows the geological heterogeneity trends associated with cluster types of the wells.