STUDY OF BIODEGRADATION EFFECT ON AROMATIC BIOMARKER PARAMETERS
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摘要: 在大多数情况下,生物降解作用是造成原油变稠的最主要原因。目前,生物降解作用对饱和烃生物标志物和含氮化合物及参数的影响研究较多,而对芳烃生物标志物及参数的研究较少。选取渤海湾盆地渤中凹陷4个不同降解程度的原油样品,采用GC-MS分析测试,初步探讨了自然条件下,生物降解作用对原油中一些芳烃生物标志物参数(主要是成熟度指标)的影响。结果表明:运用甲基萘比(MNR)计算降解原油的成熟度时,结果比降解前的实际值小;运用甲基菲比(MPR)计算降解原油的成熟度时,结果比降解前的实际值大;而运用三芳甾烷/单芳甾烷(TAS/MAS)计算降解原油的成熟度时,基本不失真。Abstract: In most cases,biodegradation is the main factors which cause the crude oil sticky.At present,biodegradation effect on saturated hydrocarbon biomarkers,nitrogen compounds and their parameters is mostly studied,with less attention is paid to the research of aromatic biomarker parameters.Four oil samples with different degraded degrees in Bozhong Sag of the Bohai Bay Basin are selected.By using GC-MS tests,the biodegradation influences on some aromatic biomarker parameters in crude oils especially on maturity indicators under natural conditions is preliminarily discussed.The results indicate that the maturity of oil degradation calculated by using methyl naphthalene ratio(MNR) is less than that before degradation,and the maturity calculated by using methyl phenanthrene ratio(MPR) is larger than that before degradation.However,the maturity of oil degradation calculated by using triaromatic steroid/monoaromatic sterane(TAS/MAS) ratio is basically undistortion.
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Key words:
- biodegradation /
- aromatic biomarker /
- maturity /
- crude oil /
- the Bohai Bay Basin
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[1] Hunt J M.Petroleum geochemistry and geology[M].San Franciso:Freeman,1979.617 [2] Williams J A,Winters J C.Microbial alteration of crude oil in the reservoir[A].158th National Meeting of the American Chemical Society[C],New York:Academic Press,1969.22~31 [3] Rubinstein I,Strausz O P,Spyckerellec C,et al.The origin of oil sand bituments of Alberta[J].Geochemical et Cosmochimica Acta 1977,41:1341~1353 [4] Connan J.Biodegradation of crude oils in reservoirs[M].London:Academic Press,1984.299~355 [5] Peters K E,Moldowan J M.Effects of source,thermal maturity,and biodegradation on the distribution and isomerization of homohopanes in petroleum[J].Organic Geochemistry,1991,15:47~61 [6] 张大江,黄第藩,李晋超.克拉玛依原油的生物降解[J].石油勘探与开发,1987,4(4):11~18 [7] 王屿涛.准噶尔盆地西北缘稠油生物降解特征[J].沉积学报,1994,12(1):81~88 [8] 苏荣国,牟伯中,王修林等.微生物对石油烃的降解机理及影响因素[J].化工环保,2001,21(4):205~208 [9] 包建平,朱翠山,马安来等.生物降解原油中生物标志物组成的定量研究[J].江汉石油学院学报,2002,24(2):22~26 [10] 王涌泉,熊永强,李芸.应用化学降解方法研究固体沥青:以川东北固体沥青为例[J].石油实验地质,2007,29(6):609~611 [11] Bailey N J L,Jobson A M,Rogers M A.Bacterial degradation of crude oil:comparison of field and experimental data[J].Chem Geol,1973,11:203~221 [12] 陈传平,梅博文,易绍金等.砂岩储层中原油微生物降解的模拟实验研究[J].沉积学报,1997,15(1):135~140 [13] 张渠,梁舒,张志荣等.原油模拟生物降解的饱和烃色谱分析[J].石油实验地质,2005,27(1):81~84 [14] 倪春华,包建平,朱翠山等.原油生物降解模拟实验研究[J].石油天然气学报,2005,27(5):574~578 [15] 罗霞,刘华,王玉林等.渤海湾盆地济阳坳陷气源岩和原油生物模拟实验研究[J].石油实验地质,2007,29(4):426~431 [16] 倪春华.渤中凹陷第三系原油地球化学特征与运聚史分析[D] :[学位论文].荆州:长江大学,2006 [17] 黄海平,杨杰,Larter S R.生物降解作用对储层抽提物中多甲基取代萘分布的影响[J].地球科学--中国地质大学学报,2003,28(3):281~288 [18] 彼得斯 K E,莫尔多万 J M.生物标记化合物指南[M].北京:石油工业出版社,1995.180~181
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