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Территория Нефтегаз № 6 2011

Транспорт, хранение и переработка нефти и газа

»  01.06.2011 10:00 ОПЫТ БОРЬБЫ С ОТЛОЖЕНИЯМИ АСПО В ПОДВОДНЫХ ТРУБОПРОВОДАХ ПРОЕКТА «САХАЛИН-2»
CONTROL OF WAX DEPOSITION IN SUBSEA PIPELINES OF SAKHALIN-II PROJECT
D.V. Kosyak, A.N. Markin, «Sakhalin Energy Investment Company» Transportation of crude oil in subsea pipelines where ambient temperature is below wax appearance temperature is associated with high risk of effective diameter reduction and hence sticking of the pig during cleaning operations. A complex approach has been utilized in order to estimate severity of wax deposition and predict as accurate as possible the most probable place of deposition. Furthermore, wax inhibitor was selected that fitted all criteria in terms of effectiveness and offshore logistics capabilities. Keywords: wax deposition, subsea pipelines, pigging, wax inhibitor
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