油源对比方法简介及鄂尔多斯盆地长9油源研究现状
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摘要
油源对比是油气地质研究中必不可少的一种技术,本文对油源对比方法进行了简单介绍,其中生物标志化合物对比法是最常使用的方法。近年来鄂尔多斯盆地延长组中下组合油藏的发现使其成为勘探开发的热点话题。通过对鄂尔多斯盆地长9烃源岩发育范围、生烃潜力以及长9油层组原油地球化学特征的研究,发现鄂尔多斯盆地志丹南部地区长9油层组发育有较好的烃源岩,生烃潜力高,最大厚度可达20 m以上,通过对比发现志丹地区长9油层组的原油与长9暗色泥岩烃源岩生物标志化合物组成相似,有较近的亲缘关系;其它地区长9油层组的原油与长7油层组烃源岩具有较近的亲缘关系。因此,鄂尔多斯盆地志丹及其邻近地区长9油层组的原油有长9油层组的烃源岩贡献,其它地区绝大部分为长7油层组的烃源岩贡献,与鄂尔多斯盆地延长组长9油层组烃源岩分布是一致的。
Oil source comparison is an indispensable technology in oil and gas geology research.This paper briefly introduces the oil source comparison method,and the biomarker compound comparison method is the most commonly used method.In recent years,the discovery of the middle and lower combined reservoirs of the Yanchang Formation in the Ordos Basin has become a hot topic in exploration and development.Based on the study of the developmental range,hydrocarbon generation potential and geochemical characteristics of the Chang 9 oil-bearing group in the Ordos Basin,it is found that the Chang 9 oil-bearing formation in the southern part of the Zhidan area of the Ordos Basin has good source rocks and hydrocarbon generation potential.The high and maximum thickness can reach more than 20 meters.It is found that the crude oil of the Chang 9 oil layer group in the Zhidan area is similar to the biomarker compound of the long dark mudstone source rock in the Zhidan area,and has a close genetic relationship.In other areas,the Chang 9 oil layer group Crude oil has a close relationship with the source rocks of the Chang 7 oil formation.Therefore,the crude oil of the Chang 9 oil-bearing formation in Zhidan and its adjacent areas in the Ordos Basin has the contribution of the source rocks of the Chang 9 oil-bearing formation,and most of the other areas contribute to the source rocks of the Chang 7 oil-bearing formation,and the length of the Yanchang Formation in the Ordos Basin is 9.The distribution of source rocks in the reservoir group is consistent.
Oil source comparison is an indispensable technology in oil and gas geology research.This paper briefly introduces the oil source comparison method,and the biomarker compound comparison method is the most commonly used method.In recent years,the discovery of the middle and lower combined reservoirs of the Yanchang Formation in the Ordos Basin has become a hot topic in exploration and development.Based on the study of the developmental range,hydrocarbon generation potential and geochemical characteristics of the Chang 9 oil-bearing group in the Ordos Basin,it is found that the Chang 9 oil-bearing formation in the southern part of the Zhidan area of the Ordos Basin has good source rocks and hydrocarbon generation potential.The high and maximum thickness can reach more than 20 meters.It is found that the crude oil of the Chang 9 oil layer group in the Zhidan area is similar to the biomarker compound of the long dark mudstone source rock in the Zhidan area,and has a close genetic relationship.In other areas,the Chang 9 oil layer group Crude oil has a close relationship with the source rocks of the Chang 7 oil formation.Therefore,the crude oil of the Chang 9 oil-bearing formation in Zhidan and its adjacent areas in the Ordos Basin has the contribution of the source rocks of the Chang 9 oil-bearing formation,and most of the other areas contribute to the source rocks of the Chang 7 oil-bearing formation,and the length of the Yanchang Formation in the Ordos Basin is 9.The distribution of source rocks in the reservoir group is consistent.
引文
[1]季长军.南羌塘坳陷油藏带生物标志化合物特征及油源对比研究[D].成都:成都理工大学,2015.
[2]杨俊杰.鄂尔多斯盆地构造演化与油气分布规律[M].北京:石油工业出版社,2002.
[3]张文正,杨华,傅锁堂,等.鄂尔多斯盆地长91湖相优质烃源岩的发育机制探讨[J].中国科学:D辑,2007,37(SI):33-38.
[4]段毅,于文修,刘显阳,等.鄂尔多斯盆地长9油层组石油运聚规律研究[J].地质学报,2009,83(6):855-860.
[5]吴保祥,段毅,郑朝阳,等.鄂尔多斯盆地古峰庄-王洼子地区长9油层组流体过剩压力与油气运移研究[J].地质学报,2008,82(6):844-849.
[6]段毅,吴保祥,郑朝阳,等.鄂尔多斯盆地西峰油田油气成藏动力学特征[J].石油学报,2005,26(4):29-33.
[7]常象春,王明镇,韩作振.试论适合叠合盆地的油源对比方法[J].地球科学与环境学报,2004(4):32-36.
[8]K E 彼得斯,J M 莫尔多万.生物标记化合物指南-古代沉积物和石油中分子化石的解释[M].姜乃煌,张水昌,林永汉,等译.北京:石油工业出版社,1995.
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[10]张枝焕,关强.新疆三塘湖盆地侏罗系油源分析[J].石油大学学报:自然科学版,1998,22(5):37-41.
[11]陈鸿平.呼和湖南屯组煤系源岩地化特征及油源对比[J].西部探矿工程,2014(1):50-54.
[12]赵文智,张光亚,何海清,等.中国海相石油地质与叠合含油气盆地[M].北京:地质出版社,2002.
[13]张文正,杨华,李善鹏.鄂尔多斯盆地长91湖相优质烃源岩成藏意义[J].石油勘探与开发,2008,35(5): 557-562.
[14]李吉军,吴慧.鄂尔多斯盆地长9烃源岩发育与排烃效率[J].吉林大学学报(地球科学版),2012(S1):26-32.
[15]李士祥,刘显阳,惠潇,等.陕北地区延长组长10油层组油源对比研究[J].低渗透油气田,2010,15(1/2):1-7.
[16]周进高,姚根顺,邓红婴,等.鄂尔多斯盆地延长组长9油层组勘探潜力分析[J].石油勘探与开发,2008(3):289-293.
[17]Zhang Wenzheng,Yang Hua,Hou Linhui,et al.Distribution and geological significance of 17α(H)-diahopanes from different hydrocarbon source rocks of Yanchang Formation in Ordos Basin[J].Science in China: Series D: Earth Science,2009,52(7):965-974.
[18]李相博,刘显阳,周世新,等.鄂尔多斯盆地下组合油气来源及成藏模式[J].石油勘探与开发,2012(2):172-180.
[19]段毅,吴保祥,张辉,等.鄂尔多斯盆地西峰油田原油地球化学特征及其成因[J].地质学报,2006,80(2):301-310.
[20]张文正,杨华,候林慧,等.鄂尔多斯盆地延长组不同烃源岩17α ( H) -重排藿烷的分布及其地质意义[J].中国科学:D辑,2009,39(10):1438-1445.
[2]杨俊杰.鄂尔多斯盆地构造演化与油气分布规律[M].北京:石油工业出版社,2002.
[3]张文正,杨华,傅锁堂,等.鄂尔多斯盆地长91湖相优质烃源岩的发育机制探讨[J].中国科学:D辑,2007,37(SI):33-38.
[4]段毅,于文修,刘显阳,等.鄂尔多斯盆地长9油层组石油运聚规律研究[J].地质学报,2009,83(6):855-860.
[5]吴保祥,段毅,郑朝阳,等.鄂尔多斯盆地古峰庄-王洼子地区长9油层组流体过剩压力与油气运移研究[J].地质学报,2008,82(6):844-849.
[6]段毅,吴保祥,郑朝阳,等.鄂尔多斯盆地西峰油田油气成藏动力学特征[J].石油学报,2005,26(4):29-33.
[7]常象春,王明镇,韩作振.试论适合叠合盆地的油源对比方法[J].地球科学与环境学报,2004(4):32-36.
[8]K E 彼得斯,J M 莫尔多万.生物标记化合物指南-古代沉积物和石油中分子化石的解释[M].姜乃煌,张水昌,林永汉,等译.北京:石油工业出版社,1995.
[9]Peters K E,Moldowan J M.生物标记化合物指南:古代沉积物和石油中分子化石的解释[M].姜乃煌,译.北京:石油工业出版社,1997.
[10]张枝焕,关强.新疆三塘湖盆地侏罗系油源分析[J].石油大学学报:自然科学版,1998,22(5):37-41.
[11]陈鸿平.呼和湖南屯组煤系源岩地化特征及油源对比[J].西部探矿工程,2014(1):50-54.
[12]赵文智,张光亚,何海清,等.中国海相石油地质与叠合含油气盆地[M].北京:地质出版社,2002.
[13]张文正,杨华,李善鹏.鄂尔多斯盆地长91湖相优质烃源岩成藏意义[J].石油勘探与开发,2008,35(5): 557-562.
[14]李吉军,吴慧.鄂尔多斯盆地长9烃源岩发育与排烃效率[J].吉林大学学报(地球科学版),2012(S1):26-32.
[15]李士祥,刘显阳,惠潇,等.陕北地区延长组长10油层组油源对比研究[J].低渗透油气田,2010,15(1/2):1-7.
[16]周进高,姚根顺,邓红婴,等.鄂尔多斯盆地延长组长9油层组勘探潜力分析[J].石油勘探与开发,2008(3):289-293.
[17]Zhang Wenzheng,Yang Hua,Hou Linhui,et al.Distribution and geological significance of 17α(H)-diahopanes from different hydrocarbon source rocks of Yanchang Formation in Ordos Basin[J].Science in China: Series D: Earth Science,2009,52(7):965-974.
[18]李相博,刘显阳,周世新,等.鄂尔多斯盆地下组合油气来源及成藏模式[J].石油勘探与开发,2012(2):172-180.
[19]段毅,吴保祥,张辉,等.鄂尔多斯盆地西峰油田原油地球化学特征及其成因[J].地质学报,2006,80(2):301-310.
[20]张文正,杨华,候林慧,等.鄂尔多斯盆地延长组不同烃源岩17α ( H) -重排藿烷的分布及其地质意义[J].中国科学:D辑,2009,39(10):1438-1445.