Relevant issues on quality evaluation of petroleum pipeline preparation for oil product transportation

Abstract

This article discusses the issue of assessment of the quality of petroleum pipeline preparation for light oil product transportation. The need to implement appropriate measures is conditioned by the requirement to maintain the quality of oil products during their transportation. We identified vulnerable indicators, which are most prone to change if oil products contact with asphaltene-resin-paraffin deposits remaining in the pipeline, as well as estimated probability of failures and emergencies if off-spec oil products are used in automotive and aviation equipment. The scope of the article includes considering variants of technical solutions for the cleanup of the line part of petroleum pipelines and process pipelines of oil pumping stations from asphaltene-resin-paraffin deposits using specially selected chemical reagents and the methodology for assessing the quality of their preparation for oil product transportation. We considered the order of estimation of the possible volume of off-spec oil products formed as a result of the oil product’s contact with residues of the cleanup products and chemical reagents located in the cavity of the pipeline and provided the results of the implementation of technical solutions to ensure the quality of petroleum pipeline cleanup at the facilities of PJSC Transneft repurposed for oil product transportation in 2014–2017.

Calculation method for the amount of contaminant oil during sequential transportation through product oil pipelines

“…(2016) studied dead oil at dead-leg sections; however, their model could be modified by considering the contamination of trailing oil at dead-legs. Sunagatullin et al. (2019) studied the quality evaluation of light oil products in pipelines and determined the indicators.…”