| 大庆油田杏南开发区东部过渡带原油特征及油源对比 |
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| 引用本文： | 王渝明,李士奎,何光玉,朱岩,陈汉林,杨树锋.大庆油田杏南开发区东部过渡带原油特征及油源对比[J].高校地质学报,2004,10(2):267-274. |
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| 作者姓名： | 王渝明 李士奎 何光玉 朱岩 陈汉林 杨树锋 |
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| 作者单位： | 浙江大学,理学院,地球科学系,杭州,310027;浙江大学,理学院,地球科学系,杭州,310027;浙江大学,理学院,地球科学系,杭州,310027;浙江大学,理学院,地球科学系,杭州,310027;浙江大学,理学院,地球科学系,杭州,310027;浙江大学,理学院,地球科学系,杭州,310027 |
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| 摘 要： | 杏南开发区东部过渡带的原油具有密度低、粘度低、含胶量低、含蜡量高、凝固点高的物性特征，属于典型的轻质油。其饱和烃含量、总烃含量和饱／芳比高，反映了藻类母质油源的输入特征。其正烷烃碳数分布范围为nC15—nC39，呈单峰态分布，主峰碳数为nC23，nC23。全油及族组分碳同位素值较轻。甾烷化合物含量丰富，并含有一定数量的C30—4甲基甾烷，C27，C28与C29甾烷的分布型式呈“L”字型。原油中的五环三萜类化合物含量丰富，主要有藿烷系列、升藿烷系列和r-蜡烷系列等。油源对比研究表明，研究区原油只具有与其东侧三肇凹陷中青一段泥岩大致相同的碳同位素值和甾、萜烷分布特征，表明原油主要来源于该凹陷中的青一段泥岩。
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| 关 键 词： | 原油特征 油源对比 大庆油田 |
| 文章编号： | 1006-7493(2004)02-267-08 |
| 修稿时间： | 2003年10月28 |
Research on the Properties and Origin of the Crude Oil from the Transition Zone of Southern Xingshugang District in Daqing Oil Field,Northeastern China |
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| WANG Yu-ming,LI Shi-kui,HE Guang-yu,ZHU Yan,CHEN Han-lin,YANG Shu-feng.Research on the Properties and Origin of the Crude Oil from the Transition Zone of Southern Xingshugang District in Daqing Oil Field,Northeastern China[J].Geological Journal of China Universities,2004,10(2):267-274. |
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| Authors: | WANG Yu-ming LI Shi-kui HE Guang-yu ZHU Yan CHEN Han-lin YANG Shu-feng |
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| Institution: | Department of Earth Sciences, Zhejiang University, Hangzhou, 310027, China |
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| Abstract: | The crude 0il of the southern Xingshugang district in Daqing oil field is of lower density, 1ower viscidity，lower colloid，high wax and lower freezing point，and belongs to the typical light oil type．It also has higher saturated hydrocarbon content，overall hydrocarbon content and higher saturated to aromatic hydrocarbon ratio，which indicates the input of original algae．The carbon number distribution of normal alkanes shows a range from Cl5 to C39 with a peak at nC22 or nC23．Moreover，the whole oil and its family group show a feature of light carbon isotopes．The crude oil is very rich in steranes and contains a few 4-methyl steranes．The C27 and C29 sterane compound concentrations and the C28 sterane compound concentrations are low，and the distribution of ，C28 and C29 steranes is"L"shaped．The pentacyclic triterpanes in the crude oil ale also plentifu1．They are mainly hopanes，novel hopanes and gammaceranes． The oil-source rock correlation indicates that the crude oil has the similar carbon isotope compositions，and the similar steranes，terpanes distribution with the mudstone of the Lower Qingshankou Formation in Sanzhao sag，which suggests that the crude oil in the study area was derived from the Lower Qingshankou Formation in Sanzhao sag． |
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| Keywords: | characteristics of crude oil oil and source rock correlation Daqing Oilfield |
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