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直接用共聚焦激光扫描显微镜(CLSM)和透射电子显微镜(TEM)观察原油,并发现了原油中存在类型十分丰富的固体碎屑,原油中所含的固体碎屑绝大部分来源于生成原油的源岩.二次运移过程中混入原油的杂质只占原油固体碎屑的很少一部分,它不是原油中的固体碎屑的主要来源.因此,原油中的固体碎屑的成分和组合直接反映了源岩的性质.准噶尔盆地和吐鲁番-哈密盆地侏罗系原油中主要存在两种类型的固体碎屑组合:一种原油是含有大量的煤显微组分碎屑,这种原油可能与侏罗纪煤系形成的煤成油有关;另一种原油是含有以藻类体残渣为主的固体碎屑,这种原油可能与煤系之下二叠系的湖相地层有关.此外,CLSM下检出并测定的碎屑镜质体的反射率也可作为追溯油源关系的依据之一.
Direct observation of crude oil by confocal laser scanning microscopy (CLSM) and transmission electron microscopy (TEM) revealed the presence of abundant types of solid debris in crude oil, most of which originated from crude oil-forming Source rocks. The impurities mixed into the crude oil during secondary migration make up only a very small portion of the solid debris of crude oil and are not the primary source of solid debris in the crude oil. Therefore, the composition and combination of the solid debris in the crude oil directly reflects The nature of the source rock There are mainly two types of solid clastic assemblages in the Jurassic crude oil of the Junggar Basin and the Turpan-Hami basin: one type of crude oil contains a large amount of coal microstructure debris, which may be related to Jurassic The coal formed by the Luoji coal measures is related to the oil formation of the coal; the other crude oil contains solid debris mainly dominated by algae residues, which may be related to the Permian lacustrine strata below the coal measures.In addition, And the measured reflectance of the detrital vitrinite can also be used as a basis for tracing the relationship between oil sources.