摘要
不同油源样品的C7^+，其平均分子量和平均相对密度虽有很大差异，但与两者有关的Watson特征因子Kw值却稳定却在12．00±0．50的范围内，可作为检验PVT分析资料可靠性的初步标准。油气藏的C7^+和Kw平均值，可作为更严格的检验标准。这种规律对井流物、分离器液或定容衰竭过程中每级压力下的产物或碳数更高的烃类混合物都适用。
Average molecular weight and relative density of C_7^+ from different crudes are different .But the related kw values of Watson characterization factors stablize within 12.00±0.50,which can used as prelimimary standard of reliability examination of PVT data.Average Kw of C_7^+ from the reservoir can be used as a more strict examination standard.This is applicable to well stream,seperator liquid or products under each pressure stage in constant volume expansion,or hydrocarbon mixtures with C numbers.
出处
《中国海上油气（地质）》
1991年第5期36-42,共7页
China Offshore Oil and Gas(Geology)
