The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 29, 2009
Filed:
Dec. 05, 2005
David Rowan, Abingdon, GB;
Kieran Neylon, Middlesex, GB;
Ian Pallister, Abingdon, GB;
Paul A. Fjerstad, Houston, TX (US);
David Rowan, Abingdon, GB;
Kieran Neylon, Middlesex, GB;
Ian Pallister, Abingdon, GB;
Paul A. Fjerstad, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
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.