【摘要】：根據(jù)石油中的碳穩(wěn)定同位素具有母質(zhì)繼承效應(yīng),利用穩(wěn)定同位素手段對(duì)原油的油指紋進(jìn)行鑒定。對(duì)于正構(gòu)烷烴指標(biāo),在室內(nèi)對(duì)380#燃料油進(jìn)行了長(zhǎng)期風(fēng)化模擬實(shí)驗(yàn),在長(zhǎng)期風(fēng)化中δ13CPr/C19、δ13CPh/C19、δ13CPr/C20和δ13CPh/C20其相對(duì)標(biāo)準(zhǔn)偏差(RSD,relative standard deviation)小于5%,表現(xiàn)出一定的穩(wěn)定性,可作為診斷比值來(lái)進(jìn)行油指紋鑒別。對(duì)于多環(huán)芳烴,對(duì)380#燃料油和科威特原油進(jìn)行了室內(nèi)長(zhǎng)期風(fēng)化模擬實(shí)驗(yàn),燃料油和原油風(fēng)化樣的δ13Cflu和δ13Cph分別分布于-27.476‰~-26.583‰和-26.482‰~-21.914‰,各自集中于一定范圍內(nèi),利用δ13Cflu和δ13Cphe雙指標(biāo)可區(qū)分不同油品的風(fēng)化樣品。研究證明穩(wěn)定同位素作為一種追蹤油源的技術(shù)手段,可以用于風(fēng)化后的油源鑒別。
[Abstract]:According to the parent material inheritance effect of carbon stable isotopes in petroleum, the oil fingerprints of crude oil were identified by means of stable isotopes. For n-alkanes, a long-term weathering simulation experiment was carried out on 380# fuel oil in laboratory. The relative standard deviations (RSD,relative standard deviation) < 5) of 未 13 CPR / C 19, 未 13 C Phr / C 19, 未 13CPr/C20 and 未 13CPh/C20 were obtained during the long weathering. It shows certain stability and can be used as diagnostic ratio for oil fingerprint identification. For polycyclic aromatic hydrocarbons (PAHs), long term weathering experiments were carried out on 380# fuel oil and Kuwait crude oil. The 未 13Cflu and 未 13Cph of fuel oil and crude oil weathered samples were distributed in the range of -27.476 鈥，

本文編號(hào)：2368495