THERMAL SIMULATION STUDY OF CRUDE OIL FROM WELL S74 IN THE TARIM BASIN(Ⅰ)-GEOCHEMICAL CHARACTERISTICS OF THE SIMULATION PRODUCTS
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摘要: 对塔里木盆地S74井稠油开展了热模拟实验,对原油、模拟残渣抽提物、排出油的族组分及其碳同位素进行了测试,并对饱和烃进行了气相色谱与气相色谱—质谱分析,同时进行了烷烃气碳同位素分析。研究表明:1)模拟残渣抽提物饱和烃结构组成、甾萜烷生物标志化合物随模拟温度的变化具较大幅度的变化,而排出油除在350℃出现异常外,饱和烃结构组成、甾萜烷生标特征随模拟温度的变化不大;2)模拟残渣抽提物及其馏分碳同位素随模拟温度的增高而逐渐变重,而排出油及其馏分碳同位素随模拟温度的变化规律不明显;3)烷烃气碳同位素随模拟温度的增高而逐渐变重,各模拟温度点烷烃气碳同位素呈正常组合序列分布。Abstract: A thermal simulation experiment of the heavy crude oil from Well S74 in the Tarim Basin has been conducted.The hydrocarbon families and the isotopes of the crude oil,the residual extract and the expelled oil have been analyzed.The saturated hydrocarbons have been detected by gas chromatography and gas chromatography-mass spectrometry,and the carbon isotope analysis of the alkane gases has been carried out.The results indicate that: 1) The compositional structure of the saturated hydrocarbons and the biomarkers of sterane and terpane of the residual extract change significantly with the increase of the simulation temperature,whereas the compositional structure of the saturated hydrocarbons and the biomarkers of sterane and terpane of the expelled oil do not change so significantly with the simulation temperature,except at 350 ℃ where anomalies occur.2) The carbon isotopes of the residual extract and its fractions increase gradually with the simulation temperature,whereas those of the expelled oil do not change so regularly with the simulation temperature.3) The carbon isotopes of the alkane gases also increase gradually with the simulation temperature,and the carbon isotope values at various simulation temperature points distribute as the normal sequence.
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Key words:
- heavy crude oil /
- saturated hydrocarbon /
- sterane terpane carbon isotope /
- thermal simulation /
- the Tarim Basin /
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[1] 秦建中,刘宝泉,郑伦举等.海相碳酸盐岩烃源岩生排烃能力研究[J].石油与天然气地质,2006,27(3):349～355 [2] 秦建中,刘井旺,刘宝泉等.加温时间、加水量对模拟实验油气产率及地化参数的影响[J].石油实验地质,2002,24(2):152～157 [3] 史基安,王琪,赵欣.不同类型烃源岩气态烃生成特征研究[J].沉积学报,1999,17(2):301～305 [4] 刘全有,刘文汇,秦胜飞等.煤岩及煤岩加不同介质的热模拟地球化学实验:气态和液态产物的产率以及演化特征[J].沉积学报,2001,19(3):465～468 [5] 黄志海,张四海,钟宁宁.碳酸盐岩生气的热模拟实验[J].地质科学,2003,38(4):455～459 [6] 程克明,王兆云,钟宁宁等.碳酸盐岩油气生成理论与实践[M].北京:石油工业出版社,1996.139～175 [7] 刘宝泉,蔡冰.上元古界下马岭组页岩干酪根的油气生成模拟实验[J].石油实验地质,1990,12(2):147～161 [8] 高岗.油气生成模拟方法及其石油地质意义[J].天然气地球科学,2000,11(2):25～29 [9] 赵孟军,卢双舫.原油二次裂解气:天然气重要的生成途径[J].地质论评,2000,46(6):645～650 [10] 王振平,付晓泰,卢双舫等.原油裂解成气模拟实验、产物特征及其意义[J].天然气工业,2001,21(3):12～14 [11] 王云鹏,耿安松,刘德汉等.页岩、煤、沥青和原油的生气模拟实验研究[J].沉积学报,2004,22(增刊):106～109 [12] 赵文智,王兆云,何海清等.中国海相碳酸盐岩烃源岩成气机理[J].中国科学(D辑地球科学),2005,35(7):638～648 [13] 张林,魏国齐,吴世祥等.四川盆地震旦系-下古生界沥青产烃潜力及分布特征[J].石油实验地质,2005,27(3):276～280 [14] 王健宝,肖贤明,王汝泰.四川盆地早古生代地层中沥青的成因及其生气潜力研究[J].天然气工业,2003,23(5):127～129 [15] 王振平,赵锡嘏,付晓泰等.塔里木盆地源岩排烃模拟实验及视排油效率[J].石油实验地质,1995,17(4):372～376 [16] 刘大锰,金奎励,王凌志.塔里木盆地志留系沥青砂岩的特性及其成因[J].现代地质,1999,13(2):169～175 [17] 霍秋立,冯子辉,付丽.非烃和沥青质生烃热模拟研究[J].地质地球化学,2002,30(3):64～67 [18] 秦建中,刘宝泉.海相不同类型烃源岩生排烃模式研究[J].石油实验地质,2005,27(1):74～80 [19] 刘德汉,史继扬.高演化碳酸盐岩非常规评价方法探讨[J].石油勘探与开发,1994,21(3):113～115 [20] 陈中凯,金奎励.天然固体沥青的有机岩石学特征[J].煤田地质与勘探,1995,23(4):18～22 -
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