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

Karina Shamilyevna Nurgalieva, Liliya Albertovna Saychenko and Masoud Riazi
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Karina Shamilyevna Nurgalieva: Department of Development and Operation of Oil and Gas Fields, Saint-Petersburg Mining University, 199106 St Petersburg, Russia
Liliya Albertovna Saychenko: Department of Development and Operation of Oil and Gas Fields, Saint-Petersburg Mining University, 199106 St Petersburg, Russia
Masoud Riazi: School of Chemical and Petroleum Engineering, Shiraz University, Shiraz 71454, Iran

Energies, 2021, vol. 14, issue 20, 1-16

Abstract: 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.

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 (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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