【摘要】 松辽盆地西部斜坡区分布正常原油和生物降解原油,探讨原油中含氧化合物的变化,对认识该地区油气成藏过程具有实际意义。对不同降解程度原油样品进行含氧化合物分析的结果表明:酸性非烃中的含氧化合物以正构一元链烷酸甲酯为主,主峰碳数均为C16,含量变化较小;中性非烃含氧化合物以正构链烷醇为主,碳数分布范围变化不大,一般为C8至C19,含量变化大,主要受原油降解程度的影响,随原油降解程度增加,主峰碳数逐渐前移。西部斜坡区原油非烃及含氧化合物变化反映原油从东向西的运移过程以及从东向西原油降解程度逐渐增加的特征。图3表2参9更多还原

【Abstract】 Normal oil and biodegraded oil are found in the west slope of Songliao Basin. Oxygenated compounds of oil samples with different biodegraded degrees show that the oxygenatedcompounds in acid non-hydrocarbon are mainly normal-mono-carboxylic with peak carbon of C 16. The oxygenated compounds in neutral non-hydrocarbons are mainly normal-mono-carboxylic alcohols with stable carbon number of C 8 to C 19, the content changes under the effect of biodegraded degree with the main peak carbon reducing with the increase of biodegraded degree. Characteristics of non-hydrocarbons and oxygenated compounds reflect the migration of oil and the increase of biodegraded degree from east to west.更多还原