【摘要】 辽河西斜坡油田生油岩的 DPEP/ETIO 值随井深增大而降低,ETIO 与卟啉总量之比随井深增大而增大。油页岩卟啉以 DPEP 为主,DPEP/ETIO 值不随埋藏深度而变。根据卟啉含量及类型,可将我国原油分为4类。更多还原

【Abstract】 Porphyrins in crude oils,source rocks and oil shales in China are mainlyDPEP and ETIO.With the increase of burial depth,the ratio DPEP/ETIOof source rocks decreases gradually and high-carbon-number porphyrins(D₃₂,E₃₂)change into low-carbon-number ones.But the ratio DPEP/ETIO of oilshales does not change with burial depth.According to the contents and typesof porphyrins,the chinese crude oils can be divided into 4 kinds:biodegradedoil,immatured oil,matured oil and higher matured oil.更多还原