Some problems of increasing the permeability of the formation bottomhole zone in low-permeable carbon reservoirs complicated by asphalt-resin-paraffin deposits (ARPD)
UDC: 622.276.63
DOI: 10.33285/0130-3872-2022-3(351)-49-55
Authors:
DURKIN VASILY V.
1,
SAVREY DMITRY YU.1,
TKACHENKO PAVEL E.1
1 Ukhta State Technical University, Ukhta, Russian Federation
Keywords: carbonate reservoir, bottomhole formation zone, asphalt-resin-paraffin deposits, hydrochloric acid treatment
Annotation:
On the territory of the Republic of Komi, the problem of treating the bottom-hole zone of the oil carbonate reservoirs, which is most often resinous, paraffinic, with a significant content of asphaltenes, is very acute. High-molecular hydrocarbon compounds, as fields of this category of oil are beingdeveloped, complicate the operation of production wells due to asphalt-resin-paraffin deposits (ARPD), gradually accumulated in the bottomhole formation zone and the production well, preventing the achievement of design production targets. There exist various methods of dealing with ARPD in the wellbore, however, over time, during the operation of producing wells, the effectiveness of such treatments decreases due to the significant content of ARPD in the bottomhole formation zone. This article presents a method for treating the bottomhole formation zone of a carbonate reservoir by a hydrochloric acid solutionand isopropyl alcohol to increase the formation treatment zone. The effect of these solutions on ARPD is described.
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