南海东部海上原油检验取样方法研究

系统介绍了南海东部海上原油外输检验各种取样方法的特点,对不同工作条件下如何选择合适的取样方法提出了建议。作为公认的最好方法,自动管线取样在不能阻止轻组分严重流失的作业环境中,样品的密度测试结果会发生较大偏差,容易引起贸易中的货量争议。根据ASTM标准相关内容,提出使用＂固定间隔手工取样并立即测试＂的方法,有效地解决了这一问题。这在海上原油外输检验领域具有一定参考价值,在原油贸易中应该引起重视。

Study on Sampling Methods at Offshore Oilfield of South China Sea

In this study,according to the standards of ASTM and GB,some sampling methods of the extraction of representative samples of crude oil are compared with each other and evaluated.It gives some advices to choose right methods in corresponding conditions.Several drawbacks of the automatic sampling method,used frequently and regarded as the best,are pointed out.This problem also has been tried to be resolved,to make the petroleum inspection and trade better and less disputable.