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HYDRODYNAMICS AND ACOUSTICS

2018 ◊ Volume 1 (91) ◊ Issue 1 ◊ p. 99-112

V. V. Yakovlev*, Yu. I. Kalugin*, N. G. Stepova*

* Institute of Hydromechanics of NAS of Ukraine, Kyiv, Ukraine

Mathematical modeling of gas recovery optimization at the stage of additional gas reservoir development

Gidrodin. akust. 2018, 1(1):99-112

https://doi.org/10.15407/jha2018.01.099

TEXT LANGUAGE: Russian

ABSTRACT

The boundary problem of optimization of the flow rate distribution between wells is formulated and solved on the base of mathematical model for 2D filtration of a multicomponent hydrocarbon mixture for the purpose of maximizing the gas recovery from natural gas reservoirs. An algorithm allowing the optimal managing of a gas reservoir development is worked out taking into account the restriction on the flow rates in certain wells and their stopping for remedial maintenance. The corresponding computer code is written for any number of layers, wells and mixture components to realize the algorithm. The efficiency of the proposed approach is illustrated by the example of a simulated gas reservoir. It is shown that pressure gradient decreases inside the area owing to the control over pressure equalization in each wellbore "feeding zone". As a result, in the best case scenario, it is possible to increase the gas recovery by 6% in a shorter period of time.

KEY WORDS

gas reservoir, gas recovery, optimization of gas development, additional gas reservoir development, mathematical model

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