[12] Patent
[11] Patent No.:GC0009389  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/141776
Date of the Decision to Grant the Patent:17/Dec/2018

[21] Application No.:GC 2012-31093

[22] Filing Date:6/2/2012

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
9/2/2011
13/023,728

[72] Inventor: Ali H. Dogru

[73] Owner: SAUDI ARABIAN OIL COMPANY, 1 Eastern Avenue, 31311, Dhahran , Saudi Arabia

[74] Agent: Suleiman I. Al-Ammar Law Office

  

 

  

[51]IPC:
Int. Cl.: E21B 43/00; G06F 17/16 (2006.01)

[56] Cited Documents:

-US 2011/024125 A1 (WALLACE JON M [US] ET AL) 3 February 2011
-US 2011/011595 A1 (HUANG HAO [US] ET AL) 20 January 2011
-US 2006/036418 A1 (PITA JORGE A [SA] ET AL) 16 February 2006
-US 2006/235667 A1 (FUNG LARRY s [SA] ET AL) 19 October 2006
-US 2010/191511 A1 (HSU SHENG-YUAN [US] ET AL) 29 July 2010
 
Examiner: Eng. Mohammed A. AlShamrani

[54] A SEQUENTIAL FULLY IMPLICIT WELL MODEL FOR RESERVOIR SIMULATION
[57] Abstract: A subsurface hydrocarbon reservoir with wells is simulated by simultaneous solution of reservoir and well equations which simulate flow profiles along a well without requiring an unstructured coefficient matrix for reservoir unknowns. An analytical model of the reservoir is formed using the known or measured bottom hole pressure. Where several layers in an interval in the reservoir are present between vertical flow barriers in the reservoir, and communicate vertically with others, the communicating layers are combined for analytical modeling into a single layer for that interval for simulation purposes. The matrix of equations defining the unknown pressures and saturations of the intervals of combined layers in the reservoir are solved in the computer, and a perforation rate determined for each such interval of combined layers. Rates for the intervals in the reservoir are then combined to determine total well rate.
No. of claims: 20     No. of figures: 16


 

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