Models and algorithms of adaptive method to detect filtra- tion flow during horizontal well testing

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Authors: Sergeev V. L., Dong V. H., Hagay D. E.

Annotation: The article presents the solution that allows identifying filtration flow during horizontal well testing. The method is based on pressure buildup curve by using models of logarithmic derivatives of bottom-hole pressure and algorithms of adaptive identification. The results of comparative analysis of graphanalytical method, analytical method and proposed adaptive diagnostic method for filtration flow are based on field data of two horizontal wells.

Keywords: filtration flows, diagnostics, well test, pressure build-up curve, adaptation, identification, integrated systems of models, a priori information