USING A FLUID IN A SUPERCRITICAL STATE FOR THE CYCLING PROCESS
The calculation of the operation of a model gas condensate field with a differentiated operating cycle was carried out, taking into account the mode of maintaining reservoir pressure. A development option with injection of carbon dioxide into the reservoir is proposed. A comparison of the injection of carbon dioxide into the reservoir at normal temperature with its heating to 350 degrees K is carried out. As a result of the calculations, the dependences of reservoir and working pressure and flow rate on the time of field operation in a differentiated operating cycle are obtained. It was found that when carbon dioxide is injected into the reservoir, there is a significant difference when it is injected in the «cold» and «hot» states. The data obtained indicate that, during the injection of carbon dioxide heated to 350 degrees K, it is necessary to keep a lower pressure at the wellhead, which can lead to a significant economic effect over the entire period of field operation in the mode of maintaining reservoir pressure.
Authors: М. М. Kutia , N. V. Mukhin, Т. V. Gordinskaya
Keywords: Supercritical state of matter, gas condensate field, carbon dioxide
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