论文部分内容阅读
原油物性和饱和烃、芳烃分析资料表明,塔里木盆地塔北隆起一带的海相原油可分为碳酸盐岩原油和泥质岩原油。前者合硫量大于0.3%,相对较高,后者则低于0.3%。碳酸盐岩原油中重排蔬烷化合物较少,Ts/Tm和C15重排二环化合物/C15补身烷的值均小于1.0,C29和C35藿烷含量较高,含硫化合物中苯并喷吩含量相对高于二苯并噻吩。泥质岩原油的这些生物标志物组成和分布特征与碳酸盐岩原油的完全不同,反映出两类原油的源岩在沉积环境和岩性方面的差异。在轮南地区,这两类原油分布呈明显的分区性。
Oil properties and saturated hydrocarbons and aromatics analysis data show that the marine oil in the Tabei uplift area of the Tarim Basin can be divided into carbonate crude oil and argillaceous crude oil. The former combined sulfur content of more than 0.3%, relatively high, which is less than 0.3%. Carbonate crude oil rearranged less vegetable compounds, Ts / Tm and C15 rearrangement of bicyclic compounds / C15 complementarity values were less than 1.0, C29 and C35 hopane content is higher, sulfur compounds Benzo-diphenyl content is relatively higher than dibenzothiophene. The composition and distribution characteristics of these biomarkers of argillaceous crude oils are completely different from that of carbonate crude oil and reflect the difference in sedimentary environment and lithology between the source rocks of the two types of crude oil. In Lunnan area, the distribution of these two types of crude oil is obviously zoning.