石油实验地质
石油實驗地質
석유실험지질
EXPERIMENTAL PETROLEUM GEOLOGY
2014年
2期
206-210,217
,共6页
张渠%宋晓莹%张志荣%腾格尔
張渠%宋曉瑩%張誌榮%騰格爾
장거%송효형%장지영%등격이
生物标志物%定量分析%原油特征%塔河油田
生物標誌物%定量分析%原油特徵%塔河油田
생물표지물%정량분석%원유특정%탑하유전
biomarkers%quantitative analysis%characteristics of crude oil%Tahe Oil Field
通过对塔河地区22个原油样品的饱和烃色质、芳烃色质和饱和烃色谱的定量分析研究表明,塔河地区中南部和东部原油的二苯并噻吩和姥鲛烷含量高于中北部地区的原油,说明前者代表碳酸盐沉积环境,而后者的缺氧程度更大;中北部地区原油的C35升藿烷含量高于东南部地区的原油,说明水体分层更明显,其还原程度更强;C29 S 构型甾烷含量越低,二苯并噻吩含量和2-甲基菲+3-甲基菲含量越高,原油的成熟度越高;中北部地区原油的25-降藿烷和二降藿烷含量高,为生物降解原油。
通過對塔河地區22箇原油樣品的飽和烴色質、芳烴色質和飽和烴色譜的定量分析研究錶明,塔河地區中南部和東部原油的二苯併噻吩和姥鮫烷含量高于中北部地區的原油,說明前者代錶碳痠鹽沉積環境,而後者的缺氧程度更大;中北部地區原油的C35升藿烷含量高于東南部地區的原油,說明水體分層更明顯,其還原程度更彊;C29 S 構型甾烷含量越低,二苯併噻吩含量和2-甲基菲+3-甲基菲含量越高,原油的成熟度越高;中北部地區原油的25-降藿烷和二降藿烷含量高,為生物降解原油。
통과대탑하지구22개원유양품적포화경색질、방경색질화포화경색보적정량분석연구표명,탑하지구중남부화동부원유적이분병새분화모교완함량고우중북부지구적원유,설명전자대표탄산염침적배경,이후자적결양정도경대;중북부지구원유적C35승곽완함량고우동남부지구적원유,설명수체분층경명현,기환원정도경강;C29 S 구형치완함량월저,이분병새분함량화2-갑기비+3-갑기비함량월고,원유적성숙도월고;중북부지구원유적25-강곽완화이강곽완함량고,위생물강해원유。
22 crude oils of the Tahe Oil Field have been quantitatively analyzed with gas chromatography ( GC) and gas chromatography-mass spectrometry ( GC-MS ) for saturate and aromatic biomarkers. The contents of dibenzothiophene ( DBT) and pristane ( Pr) of middle-south and east area oils are relatively higher than those of middle-north area, which indicates that the former has a depositional environment of carbonite and stronger re-ducing environment than the latter. The content of C35 homohopanes is higher in the oils of middle-north area than those of south-east, indicating for delamination water body of the former and stronger reducing environment. The content of C29S steranes increases with that of DBT and methyl phenanthrenes and maturity degree. The high contents of 25-norhophane and bisnorhopane in middle-north area reveal the experience of biodegradation.