Use of thermal and magnetic devices for prevention of asphaltene, resin, and wax deposits on oil equipment surfaces
Yu. Vynnykov1, A. Manhura1, O. Zimin1, А. Маtviienko2
1Poltava National Technical Yuri Kondratyuk University, Poltava, Ukraine
2SE “UKRNAUKAGEOCENTER”, Poltava, Ukraine
Min. miner. depos. 2019, 13(2):34-40
https://doi.org/10.33271/mining13.02.034
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ABSTRACT
Purpose. To substantiate the advantages of using a multi-level externally insulated complex of magneto-thermal dewaxing which is located in the oil well and improves production of the formation fluid with high content of asphaltene, resin, and wax deposits (ARWD) by heating and magnetization at certain intervals.
Methods. Experiments proved that the use of a magnetothermal dewaxing device enables (during round-the-clock operation of the well) to double the time between overhauls of the oil wells equipped with sucker-rod pumping units.
Findings. The paper provides an analytical model for calculating the power consumption parameters of the developed multi-level magnetothermal dewaxing complex and the level of the magnetic moment of the formation fluid flow elements in the tubing string pulling unit equipped with this complex. The design of the magnetothermal de-waxing device, as the main constructive link of the multi-level complex of magnetothermal dewaxing, and the material for the manufacture of external insulating casings of such complex elements are described. The design of a multi-level complex of magnetothermal dewaxing and its elements integrated into the tubing string pulling unit and equipped with external insulating casings, is presented. The analytical model for calculating operational parameters of multilevel dewaxing complex equipped with insulating casings is substantiated.
Originality.The developed designs of magnetothermal dewaxing devices will allow to use them together with the operation of deep-pumping equipment and in the case of a flowing oil well.
Practical implications. Introduction of a multi-level magnetothermal dewaxing complex on the basis of magnetothermal activators makes it possible to reduce the shortage of such equipment on the markets of oil and gas producing countries.
Keywords: ARWD, magnetic treatment, thermal-magnetic activation, dewaxing device, tubing string, insulating casing
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