«Geology, geophysics and development of oil and gas fields»

Some specific features of interpreting well testing data of complexly-composed reservoirs without wells stopping – the method of well testing with variable flow rate and its competitors

UDC: 622.276.031:532.546
DOI: -

Authors:

¹ National University of Oil and Gas "Gubkin University", Moscow, Russia
² Euroasian Union of Subsoil Use Experts, Moscow, Russia

Keywords: wells hydrodynamic testing without stopping production, complexly-composed reservoir, testing of wells with variable flow rate, deconvolution, production analysis

Annotation:

The authors of the article consider modern methods of wells testing in complexly-composed reservoirs, carried out without stopping production. The main attention is paid to the methods with variable flow rates, deconvolution, production analysis and other approaches, aimed at determining reservoirs characteristics, assessing the influence of reservoir boundaries and wells interference. The conducted comparative analysis showed that the variable flow rate method is highly accurate and adaptable for working in heterogeneous reservoirs, thus allowing effectively assessing the key reservoir parameters without interrupting production.

The strengths and weaknesses of each method, their applicability depending on the geological structure are described as well as promising areas for future research are proposed, including the improvement of mathematical models and the integration of machine learning methods. The results of the work are important for improving the accuracy of wells testing data interpretation and increasing the efficiency of oil fields development with complex geological structure.

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