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China crude oil pipeline industry commonly faces with abandonment problem because of the decreasing output of oilfield and pipeline integrity problem. China released its first standard on abandoned pipeline (SY/T 7413-2018) named specifications for the disposal of abandoned oil&amp;gas pipelines and it is implemented on the April 1st 2019. Pipeline cleaning is very necessary to dispose the abandoned pipeline to eliminate the risk of environment and safety. There are many cleaning agents for abandoned pipeline in the market. This chemical cleaning agent is not suitable for china pipeline because the wax remained in china pipeline is different that of foreign pipeline. The wax content in residual of china pipeline is very high. So, preparation of cleaning agent suitable for china pipeline is very important to remove wax with low cost. In this study one kind of hydrophilic cleaning agent is prepared. The result of lab test result and cleaning project both show that the kind of cleaning have excellent performance for the abandoned pipeline.

Preparation of Cleaning Agent for Treatment of Abandoned Oil Pipeline