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:
Aug. 29, 2006
Filed:
May. 07, 2002
Yu Didier Ding, Chatou, FR;
Daniel Longeron, Sartrouville, FR;
Gérard Renard, Rueil Malmaison, FR;
Annie Audibert Hayet, Croissy sur Seine, FR;
Yu Didier Ding, Chatou, FR;
Daniel Longeron, Sartrouville, FR;
Gérard Renard, Rueil Malmaison, FR;
Annie Audibert Hayet, Croissy sur Seine, FR;
Institut Francais Du Petrole, Rueil Malmaison Cedex, FR;
Abstract
The method essentially comprises acquiring initial data obtained by laboratory measurements of the values, according to the initial permeability of the formations surrounding the well, of the thickness of the cakes and of the damaged permeability and restored permeability values of this zone, as a function of the distance to the wall of the well. Then the damaged zone is discretized by a 3D cylindrical grid pattern forming blocks of small radial thickness in relation to the diameter of the well, and the diffusivity equation, modelling the flow of the fluids through the cakes, is solved in this grid pattern by taking account of the measured initial data. Finally, the evolution of the permeability is modelled as a function of the flow rates of fluids flowing through the cakes, so as to deduce therefrom the optimum conditions to be applied for producing the well.