IP Library › Granted Patent US 11,680,465

Granted Patent B2

US 11,680,465 · App. 16/725,115 · Granted Jun 20, 2023

Systems and methods for multiscale sector hydrocarbon reservoir simulation

Inventor: Ali Abdulrahman Albinali (Doha, SA)

Assignee: Saudi Arabian Oil Company

E21B41/0092 E21B49/08 G01V99/005 G06F30/28 E21B43/00 E21B2200/20 G01V2210/663

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Quick Facts

Patent No.: US 11,680,465
App. No.: 16/725,115
Granted: Jun 20, 2023
Kind: B2

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Abstract

Systems and methods for multiscale sectors based hydrocarbon reservoir simulation that include dividing a full-field reservoir model into regions and sub-regions, and iteratively assessing and reconnecting models of the sub-regions and regions in a sequential manner to generate an adjusted full-field model.

Claims (89)

1. A method of developing a hydrocarbon reservoir, the method comprising:

determining a full-field reservoir model of a hydrocarbon reservoir, the full-field reservoir model comprising a plurality of cells that represent a full-field of the hydrocarbon reservoir;

determining regions of the full-field reservoir model, wherein determining the regions of the full-field reservoir model comprises segmenting the full-field reservoir model into the regions based on shared characteristics of the portions of the reservoir corresponding to the regions, wherein the characteristics comprise pore-volume;

determining, for each of the regions of the full-field reservoir model, sub-regions of each of the regions;

generating, based on iterative history match based adjustment of the sub-regions, the regions of the full-field reservoir model, and the full-field of the hydrocarbon reservoir, an adjusted full-field model of the hydrocarbon reservoir, the generating of the adjusted full-field model of the hydrocarbon reservoir comprising:

for each sub-region, determining an adjusted sub-region model, the determining of the adjusted sub-region model for each sub-region comprising adjusting parameters of a sub-region model for the sub-region to history match the sub-region model to historic data for the sub-region;

for each region of the full-field reservoir model, determining an adjusted region model, the determining of the adjusted region model for each region comprising adjusting parameters of a region model for the region to history match the region model for the region to historic data for the region, the region model for the region comprising the adjusted sub-region models of the sub-regions within the region;

for the full-field of the hydrocarbon reservoir, determining an adjusted full-field model, the determining of the adjusted full-field model for the full-field comprising adjusting parameters of a full-field model for the full-field to history match the full-field model for the full-field to historic parameters for the full-field, the full-field model for the full-field comprising the adjusted region models of the regions of the full-field reservoir model; and

generating, using the adjusted full-field model, a simulation of the hydrocarbon reservoir, wherein determining the regions of the full-field reservoir model comprises verifying the regions of the full-field reservoir model, the verifying comprising:

conducting, using the full-field reservoir model of the hydrocarbon reservoir, a simulation of the hydrocarbon reservoir to determine full-field fluid fluxes for the regions;

for each of the regions:

conducting, using the region model for the region, a simulation of the region to determine region fluid fluxes for the region; and

comparing the region fluid fluxes for the region to the full-field fluid fluxes for the region to verify the region fluid fluxes for the region.

2. The method of claim 1 , wherein determining sub-regions of each of the regions of the full-field reservoir model comprises segmenting the region into sub-regions based on shared characteristics of the portions of the reservoir corresponding to the sub-regions.

3. The method of claim 2 , wherein the characteristics comprise well mismatch, well density or grid size.

4. The method of claim 1 ,

wherein adjusting parameters of the sub-region model for a sub-region to history match the sub-region model to historic data for the sub-region comprises adjusting a permeability of the sub-region model for the sub-region to match an output of the sub-region model for the sub-region to observed performance data for the sub-region,

wherein adjusting parameters of the region model for a region to history match the region model for the region to historic data for the region comprises adjusting permeability of the adjusted sub-region models of the sub-regions within the region to match an output of the adjusted sub-region models of the sub-regions within the region to observed performance data for the region, and

wherein adjusting parameters of a full-field model for the full-field to history match the full-field model for the full-field to historic parameters for the full-field comprises adjusting permeability of the adjusted region models of the regions within the full-field to match an output of the adjusted region models of the regions within the full-field to observed performance data for the full-field.

5. The method of claim 4 ,

wherein adjusting permeability of the adjusted sub-region models of the sub-regions within a region comprises adjusting the permeabilities of the adjusted sub-region models of the sub-regions within the region by a given region factor, and

wherein adjusting permeability of the adjusted region models of the regions within the full-field comprises adjusting the permeabilities of the adjusted region models of the regions within the full-field by a given full-field factor.

6. The method of claim 1 , further comprising generating a field development plan (FDP) for the hydrocarbon reservoir based on the simulation of the hydrocarbon reservoir.

7. The method of claim 1 , further comprising:

identifying well drilling parameters based on the simulation of the hydrocarbon reservoir; and

drilling a well in the hydrocarbon reservoir based on the well drilling parameters.

8. The method of claim 1 , further comprising:

identifying well operating parameters based on the simulation of the hydrocarbon reservoir; and

operating a well in the hydrocarbon reservoir based on the well operating parameters.

9. A non-transitory computer readable storage medium comprising program instructions stored thereon that are executable by a processor to perform the following operations for developing a hydrocarbon reservoir:

determining a full-field reservoir model of a hydrocarbon reservoir, the full-field reservoir model comprising a plurality of cells that represent a full-field of the hydrocarbon reservoir;

determining, for each of the regions of the full-field reservoir model, sub-regions of each of the regions;

for the full-field of they hydrocarbon reservoir, determining an adjusted full-field model, the determining of the adjusted full-field model for the full-field comprising adjusting parameters of a full-field model for the full-field to history match the full-field model for the full-field to historic parameters for the full-field, the full-field model for the full-field comprising the adjusted region models of the regions of the full-field reservoir model; and

conducting, using the full-field reservoir model of the hydrocarbon reservoir, a simulation of the hydrocarbon reservoir to determine full-field fluid fluxes for the regions;

for each of the regions:

conducting, using the region model for the region, a simulation of the region to determine region fluid fluxes for the region; and

comparing the region fluid fluxes for the region to the full-field fluid fluxes for the region to verify the region fluid fluxes for the region.

10. The medium of claim 9 , wherein determining sub-regions of a each of the regions of the full-field reservoir model comprises segmenting the region into sub-regions based on shared characteristics of the portions of the reservoir corresponding to the sub-regions.

11. The medium of claim 10 , wherein the characteristics comprise well mismatch, well density or grid size.

12. The medium of claim 9 ,

13. The medium of claim 12 ,

14. The medium of claim 9 , further comprising generating a field development plan (FDP) for the hydrocarbon reservoir based on the simulation of the hydrocarbon reservoir.

15. The medium of claim 9 , further comprising:

identifying well drilling parameters based on the simulation of the hydrocarbon reservoir; and

drilling a well in the hydrocarbon reservoir based on the well drilling parameters.

16. The medium of claim 9 , further comprising:

identifying well operating parameters based on the simulation of the hydrocarbon reservoir; and

operating a well in the hydrocarbon reservoir based on the well operating parameters.

17. A hydrocarbon reservoir development system comprising:

a hydrocarbon reservoir control system comprising non-transitory computer readable storage medium comprising program instructions stored thereon that are executable by a processor to perform the following operations for developing a hydrocarbon reservoir:

determining a full-field reservoir model of a hydrocarbon reservoir, the full-field reservoir model comprising a plurality of cells that represent a full-field of the hydrocarbon reservoir;

determining, for each of the regions of the full-field reservoir model, sub-regions of the region;

determining, for each of the regions, sub-regions of each of the regions;

conducting, using the full-field reservoir model of the hydrocarbon reservoir, a simulation of the hydrocarbon reservoir to determine full-field fluid fluxes for the regions;

for each of the regions:

conducting, using the region model for the region, a simulation of the region to determine region fluid fluxes for the region; and

comparing the region fluid fluxes for the region to the full-field fluid fluxes for the region to verify the region fluid fluxes for the region.

18. The system of claim 17 , wherein determining sub-regions of each of the regions of the full-field reservoir model comprises segmenting the region into sub-regions based on shared characteristics of the portions of the reservoir corresponding to the sub-regions.

19. The system of claim 18 , wherein the characteristics comprise well mismatch, well density or grid size.

20. The system of claim 17 ,

21. The system of claim 20 ,

22. The system of claim 17 , further comprising generating a field development plan (FDP) for the hydrocarbon reservoir based on the simulation of the hydrocarbon reservoir.

23. The system of claim 17 , further comprising:

identifying well drilling parameters based on the simulation of the hydrocarbon reservoir; and

drilling a well in the hydrocarbon reservoir based on the well drilling parameters.

24. The system of claim 17 , further comprising:

identifying well operating parameters based on the simulation of the hydrocarbon reservoir; and

operating a well in the hydrocarbon reservoir based on the well operating parameters.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 23, 2019

From: ALBINALI, ALI ABDULRAHMAN

To: SAUDI ARABIAN OIL COMPANY

Reel/Frame 051356/0464 →

Continuity (1)

Related Publication 20210189840A1 · Jun 24, 2021

Cited By (1)

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