公开(公告)号：US20240232459A9

公开(公告)日：2024-07-11

申请号：US18128685

申请日：2023-03-30

申请人： CHINA UNIVERSITY OF GEOSCIENCES (BEIJING)

发明人： Qian SUN ,  Zhiping LI ,  Fengpeng LAI

IPC分类号： G06F30/20 ,  E21B49/02 ,  G01V99/00 ,  E21B43/26 ,  G06F111/10

CPC分类号： G06F30/20 ,  E21B49/02 ,  G01V99/005 ,  E21B43/26 ,  E21B2200/20 ,  G06F2111/10

摘要： An intelligent Ensemble Kalman Filter (EnKF)-based method and system for real-time inversion of hydraulic fractures is provided. The method includes: conducting real-time sampling on mechanical properties of rocks in a reservoir near a fracturing stage to obtain a rock mechanical property sample set; obtaining a hydrofracturing design parameter sample set according to the rock mechanical property sample set; inputting the rock mechanical property sample set and the hydrofracturing design parameter sample set into a fracture propagation-oriented machine learning model to obtain a predicted fracture propagation state; and obtaining, by EnKF, an updated fracture propagation state according to the predicted fracture propagation state and real-time observation data.

公开(公告)号：US20240135054A1

公开(公告)日：2024-04-25

申请号：US18128685

申请日：2023-03-29

申请人： CHINA UNIVERSITY OF GEOSCIENCES (BEIJING)

发明人： Qian SUN ,  Zhiping LI ,  Fengpeng LAI

IPC分类号： G06F30/20 ,  E21B49/02 ,  G01V99/00 ,  E21B43/26 ,  G06F111/10

CPC分类号： G06F30/20 ,  E21B49/02 ,  G01V99/005 ,  E21B43/26 ,  E21B2200/20 ,  G06F2111/10

摘要： An intelligent Ensemble Kalman Filter (EnKF)-based method and system for real-time inversion of hydraulic fractures is provided. The method includes: conducting real-time sampling on mechanical properties of rocks in a reservoir near a fracturing stage to obtain a rock mechanical property sample set; obtaining a hydrofracturing design parameter sample set according to the rock mechanical property sample set; inputting the rock mechanical property sample set and the hydrofracturing design parameter sample set into a fracture propagation-oriented machine learning model to obtain a predicted fracture propagation state; and obtaining, by EnKF, an updated fracture propagation state according to the predicted fracture propagation state and real-time observation data.