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Improving the Efficiency of Oil and Gas Wells Complicated by the Formation of Asphalt–Resin–Paraffin Deposits

1
Department of Development and Operation of Oil and Gas Fields, Saint-Petersburg Mining University, 199106 St Petersburg, Russia
2
School of Chemical and Petroleum Engineering, Shiraz University, Shiraz 71454, Iran
*
Author to whom correspondence should be addressed.
Academic Editors: Alexey Mikhaylov and Dameng Liu
Energies 2021, 14(20), 6673; https://doi.org/10.3390/en14206673
Received: 14 July 2021 / Revised: 28 September 2021 / Accepted: 5 October 2021 / Published: 14 October 2021
(This article belongs to the Special Issue Sustainable Development and Renewable Energy Trends)
A number of difficulties may be encountered in the final stages of oil field exploitation, including the formation of asphalt–resin–paraffin deposits (ARPDs). It is expedient to use complex technologies to remove the already formed deposits and prevent the formation of ARPDs. This paper focuses on the complex technology of oil field exploitation. This technology combines both the removal of organic deposits and the prevention of the formation of these deposits in the well bottomhole formation zone (BHFZ) system. The calculations for determining the process parameters of selling the ARPD inhibitor solution into the BHFZ are presented in this article. This complex technology includes the process of ARPD removal by flushing the well and the subsequent injection of the developed ARPD solvent into the BHFZ. In addition, the technology is complemented by a method of preventing the formation of these deposits. This method consists of squeezing the ARPD inhibitor and then pumping it by the selling fluid from five to ten times of the volume. This article contains a detailed calculation of the methodology and provides the diagrams for the solvent and inhibitor injection. View Full-Text
Keywords: asphalt–resin–paraffin deposits; complex technology; inhibitor; ARPD solvent; bottomhole formation zone; methods for removing ARPDs; methods for preventing the formation of ARPDs; Romashkinskoye field asphalt–resin–paraffin deposits; complex technology; inhibitor; ARPD solvent; bottomhole formation zone; methods for removing ARPDs; methods for preventing the formation of ARPDs; Romashkinskoye field
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MDPI and ACS Style

Nurgalieva, K.S.; Saychenko, L.A.; Riazi, M. Improving the Efficiency of Oil and Gas Wells Complicated by the Formation of Asphalt–Resin–Paraffin Deposits. Energies 2021, 14, 6673. https://doi.org/10.3390/en14206673

AMA Style

Nurgalieva KS, Saychenko LA, Riazi M. Improving the Efficiency of Oil and Gas Wells Complicated by the Formation of Asphalt–Resin–Paraffin Deposits. Energies. 2021; 14(20):6673. https://doi.org/10.3390/en14206673

Chicago/Turabian Style

Nurgalieva, Karina S., Liliya A. Saychenko, and Masoud Riazi. 2021. "Improving the Efficiency of Oil and Gas Wells Complicated by the Formation of Asphalt–Resin–Paraffin Deposits" Energies 14, no. 20: 6673. https://doi.org/10.3390/en14206673

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