Data processing: structural design – modeling – simulation – and em – Simulating nonelectrical device or system – Fluid
Reexamination Certificate
2005-12-05
2009-12-29
Jones, Hugh (Department: 2128)
Data processing: structural design, modeling, simulation, and em
Simulating nonelectrical device or system
Fluid
C703S002000
Reexamination Certificate
active
07640149
ABSTRACT:
A new adjoint method for calculating and using adjoint gradients in a Reservoir Simulator comprises: calculating adjoint gradients of an objective function with respect to changes in valve settings taking into account the modeling of pressure drop and fluid flow along a wellbore, and using the adjoint gradients to calculate sensitivities of a reservoir to changes in parameterization of downhole devices and using of these sensitivities in optimal control of the wells to optimize some objective function subject to production constraints.
REFERENCES:
patent: 6230101 (2001-05-01), Wallis
patent: WO 99/57418 (1999-11-01), None
Pytlak et al.; Optimal scheduling of reservoir releases during flood: Deterministic optimization problem, part 1, procedure; Journal of Optimization Theory and Applications; 1989; pp. 409-432.
Pytlak et al.; Optimal scheduling of reservoir releases during flood: Deterministic optimization problem, part 2, case study; Journal of Optimization Theory and Applications; 1989; pp. 433-449.
Fjerstad Paul A.
Neylon Kieran
Pallister Ian
Rowan David
Jones Hugh
Osha & Liang LLP
Schlumberger Technology Corporation
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