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一 序言近年来我国原油孢粉研究迅速地开展起来,大量的原油孢粉研究表明,原油中含有相当多的菌、藻、孢粉化石。孢粉由于体积小,比重轻,孢粉壁不易氧化,而且石油具有一定的粘度,故油气在其运移过程中,往往将生油岩中的孢粉带进油藏,所以原油中的孢粉化石可以示踪油气运移,查明油源,判断生油岩时代,是石油地质研究的有效手段之一。沙二段是胜利油田第三系的主要含油层系之一,对其油源和油气运移研究,不仅有理论价值,而且对于油气勘探也有一定的指导意义。
A Preamble In recent years, China’s crude oil spore powder research carried out rapidly, a large number of crude oil spore powder research shows that crude oil contains considerable bacteria, algae, sporo-pollen fossils. Because of its small volume and light weight, the pollen wall is not easily oxidized and the oil has a certain viscosity. Therefore, during the migration of oil and gas, pollen grains are often introduced into reservoirs by oil and gas. Therefore, Powder fossils can trace the migration of oil and gas, ascertain the source of oil and determine the age of the source rock, which is one of the effective means of petroleum geology research. The second member of Shahejie II is one of the major oil-bearing strata in the Tertiary of Shengli Oilfield. The study of oil source and hydrocarbon migration not only has theoretical value, but also has certain guiding significance for oil and gas exploration.