Study of asphaltene-resin-paraffin deposits inhibitors and their effect on oil flow characteristics based on new methodic approach

Authors: V.S. Didenko, A.V. Nikolaev (Giprovostokneft OJSC, RF, Samara)

Key words: asphaltene-resin-paraffin deposits (ARPD) inhibitor, depressor, methodology, pipeline, efficiency

The article describes experience in application of methodic approaches for asphaltene-resin-paraffin deposits (ARPD) inhibitors and depressor additives (developed in Giprovostokneft OJSC) efficiency study, considering process conditions of oil field and pipeline transportation facilities’ functioning, when handling specific oil. Application of ARPD inhibitors and depressors is associated with necessity to prevent ARPD forming in oil field and pipeline systems, to improve oil’s transportable properties, to increase safe period of shutdown pipelines’ down-time and to reduce start-up pressure, when transportation is re-started. Studies are described by the example of Suzunskoye field’s oil. As the result, the selected chemical combined ARPD-inhibiting and depressor properties. Application range for these results is high-viscous and high-setting oil production, gathering and transportation facilities in order to enhance efficiency of their functioning. Use of our results supports frequency of paraffin cutting at equipment reducing by 3-4, deposits are weak and can be easily removed, fluid resistance in pipelines is reduced and cost of fluid transportation, pipeline safe shutdown time is increased and start-up pressure is reduced, when transportation is re-started, reliability and safety of all oil field and pipeline system is enhanced.

Key words: asphaltene-resin-paraffin deposits (ARPD) inhibitor, depressor, methodology, pipeline, efficiency

The article describes experience in application of methodic approaches for asphaltene-resin-paraffin deposits (ARPD) inhibitors and depressor additives (developed in Giprovostokneft OJSC) efficiency study, considering process conditions of oil field and pipeline transportation facilities’ functioning, when handling specific oil. Application of ARPD inhibitors and depressors is associated with necessity to prevent ARPD forming in oil field and pipeline systems, to improve oil’s transportable properties, to increase safe period of shutdown pipelines’ down-time and to reduce start-up pressure, when transportation is re-started. Studies are described by the example of Suzunskoye field’s oil. As the result, the selected chemical combined ARPD-inhibiting and depressor properties. Application range for these results is high-viscous and high-setting oil production, gathering and transportation facilities in order to enhance efficiency of their functioning. Use of our results supports frequency of paraffin cutting at equipment reducing by 3-4, deposits are weak and can be easily removed, fluid resistance in pipelines is reduced and cost of fluid transportation, pipeline safe shutdown time is increased and start-up pressure is reduced, when transportation is re-started, reliability and safety of all oil field and pipeline system is enhanced.


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