公开(公告)号：US11734479B2

公开(公告)日：2023-08-22

申请号：US16652619

申请日：2019-05-09

Applicant: Landmark Graphics Corporation

Inventor： Shang Zhang ,  Greg Daniel Brumbaugh ,  Hailun Ni ,  Gaetan Pierre Louis Bardy ,  Harold Grayson Walters

IPC: G06F30/27 ,  E21B43/26 ,  G06F113/08 ,  E21B41/00 ,  G01V99/00 ,  G06F30/23

CPC classification number: G06F30/27 ,  E21B41/00 ,  E21B43/26 ,  G01V99/005 ,  E21B2200/20 ,  E21B2200/22 ,  G06F30/23 ,  G06F2113/08

Abstract: The disclosure presents a technique to generate a fracture model using a differential stress map and model inputs. The technique simulates the fracture model using fracture fronts, initiated at perforations of a perforation stage of a hydraulic fracturing (HF) wellbore. Each fracture front is evaluated using a propagation step of a fracture model process. Using the relative differential stress states, a fracture pattern is composited to the fracture model. At each propagation step, the total energy available from the simulated HF fluid being pumped into the wellbore location is reduced by the amount necessary to generate the computed fractures. Once the remaining energy is reduced to a level where no further fractures can be created, or if a map boundary is encountered, the fracture model process terminates. The generated fracture model can be communicated to update HF job plans, wellbore placements, and other uses of the fracture model.

公开(公告)号：US20210256183A1

公开(公告)日：2021-08-19

申请号：US16652619

申请日：2019-05-09

Applicant: Landmark Graphics Corporation

Inventor： Shang Zhang ,  Greg Daniel Brumbaugh ,  Hailun Ni ,  Gaetan Pierre Louis Bardy ,  Harold Grayson Walters

IPC: G06F30/27 ,  E21B43/26

Abstract: The disclosure presents a technique to generate a fracture model using a differential stress map and model inputs. The technique simulates the fracture model using fracture fronts, initiated at perforations of a perforation stage of a hydraulic fracturing (HF) wellbore. Each fracture front is evaluated using a propagation step of a fracture model process. Using the relative differential stress states, a fracture pattern is composited to the fracture model. At each propagation step, the total energy available from the simulated fluid being pumped into the wellbore location is reduced by the amount necessary to generate the computed fractures. Once the remaining energy is reduced to a level where no further fractures can be created, or if a map boundary is encountered, the fracture model process terminates. The generated fracture model can be communicated to update HF job plans, wellbore placements, and other uses of the fracture model.