«Onshore and offshore oil and gas well construction»

The joint influence of pulsed-opto-acoustic impact and cooling of a well bottom on the increase of oil production

UDC: 622.276.5
DOI: 10.33285/0130-3872-2023-8(368)-59-61

Authors:

¹ Research Institute "Geotechnological Problems of Oil, Gas and Chemistry", Baku, Azerbaijan

Keywords: pulsed opto-acoustic wave, well bottom cooling, Knudsen effect, oil reservoir, increase in a well productivity

Annotation:

The article notes that the acoustic impact on the oil reservoir in combination with the heating of the wellbottom formation zone in order to increase oil recovery is ineffective. The low efficiency of the last method of influencing the formation in practice is caused by the incorrect formulation of the physical and mathematical model, namely, not taking into account the emerging Knudsen effect, which significantly affects the process under study. The theoretical calculations carried out showed that when the bottom of the well is cooled (when the temperature of the oil at the well bottom and the wellhead differs little from each other), a pulsed opto-acoustic wave reaches the bottom with minimal energy loss. By refining the physical and mathematical models, it has been established that the pulsed opto-acoustic impact on the oil reservoir, in combination with the cooling of the well bottom zone, is more effective than other methods.

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