他拉哈西地区层序地层格架与沉积相分析
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摘要
根据层序地层学理论,研究他拉哈西地区的层序地层格架及沉积体系特征;根据层序界面岩性-电性及地震反射特征,将泉头组四段到嫩江组三段地层划分为2个二级层序、6个三级层序、17个四级层序;综合利用岩心、测井、地震等资料,确定层序内部沉积特征;根据层序发育特征,确定层序格架内的各时期沉积相平面分布规律.结果表明:研究区主要以三角洲及湖相沉积为主,西部为三角洲平原亚相沉积和三角洲前缘水下分支河道、席状砂和河口坝沉积;东部为滨浅湖、半深湖亚相沉积.砂岩发育层段受四级层序界面的控制,层序与砂组具有良好的对应关系.
Based on the theory of sequence stratigraphy,we have carried out a detailed research on the stratigraphic framework and sedimentary system of Talahaxi.According to the seismic profile's and lithology-electrical materials' characteristics of the sequence boundary,the intended zone which were member 4 of Quantou formation to member 3 of Nenjiang formation was divided into two second-order sequence,six third-order sequence and seventeen fourth-order sequence.Comprehensively using the core,well logging and seismic materials,we determined the sedimentary characteristics in the sequences.Comprehensively analysis indicated that the facies of the intended zone are mainly delta deposition and lacustrine sediments.According to the characteristics of the sequences,we determined the plane distribution rule of the intended zone.The facies of the western research area are mainly delta plain facies,distributary channel sand,sheet sand and river mouth bars,but mainly littoral and shallow lake,semi-deep lacustrine in the eastern.By the analysis of the characteristics of the system tracts in the sequence,we know that the formation mainly consisting of sandstone in sand group is obviously under the control of the fourth-order sequence boundary,the sequences and the sand groups have good corresponding relationship.
Based on the theory of sequence stratigraphy,we have carried out a detailed research on the stratigraphic framework and sedimentary system of Talahaxi.According to the seismic profile's and lithology-electrical materials' characteristics of the sequence boundary,the intended zone which were member 4 of Quantou formation to member 3 of Nenjiang formation was divided into two second-order sequence,six third-order sequence and seventeen fourth-order sequence.Comprehensively using the core,well logging and seismic materials,we determined the sedimentary characteristics in the sequences.Comprehensively analysis indicated that the facies of the intended zone are mainly delta deposition and lacustrine sediments.According to the characteristics of the sequences,we determined the plane distribution rule of the intended zone.The facies of the western research area are mainly delta plain facies,distributary channel sand,sheet sand and river mouth bars,but mainly littoral and shallow lake,semi-deep lacustrine in the eastern.By the analysis of the characteristics of the system tracts in the sequence,we know that the formation mainly consisting of sandstone in sand group is obviously under the control of the fourth-order sequence boundary,the sequences and the sand groups have good corresponding relationship.
引文
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[10]刘秋宏,卢双舫,李军辉.海拉尔盆地呼和湖凹陷南屯组层序地层与沉积体系分析[J].沉积学报,2010,28(2):227-229.
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[12]岳信东,林春明,李艳丽,等.二连盆地白音查干凹陷下白垩统腾格尔组沉积相[J].沉积学报,2008,26(4):594-599.
[2]马福建.松辽盆地北部他拉哈一英台一大安地区黑帝庙油层精细地层研究[D].大庆:大庆石油学院,2003.
[3]许承武.松辽盆地北部他拉哈地区萨葡油层储层地质研究[D].大庆:大庆石油学院,2004.
[4]舒巧,辛仁臣,章伟.松辽盆地他拉哈西地区下白垩统青山口组下部沉积微相分析[J].沉积与特提斯地质,2008,28(2):69-73.
[5]连晓亮.他拉哈-常家围子地区葡萄花油层储层沉积学研究[D].长春:吉林大学,2007.
[6]孔凡亮,王德金.他拉哈-齐家地区葡萄花油层成藏特征[J].特种油气藏,2010,17(4):21-23.
[7]孙加华.他拉哈地区油水分布规律研究[D].杭州:浙江大学,2008.
[8]张冬玲,鲍志东,杨文秀.准噶尔盆地侏罗系层序地层格架的建立及主控因素分析[J].大庆石油学院学报,2005,29(2):10-12.
[9]龚华,李忠权,陈骁,等.乌尔逊凹陷地震反射终止类型及其纵向叠置特征与不整合界面的识别[J].大庆石油学院学报,2011,35(1):8-13.
[10]刘秋宏,卢双舫,李军辉.海拉尔盆地呼和湖凹陷南屯组层序地层与沉积体系分析[J].沉积学报,2010,28(2):227-229.
[11]陈建强,周洪瑞,王训练.沉积学及古地理学教程[M].北京:地质出版社,2005.
[12]岳信东,林春明,李艳丽,等.二连盆地白音查干凹陷下白垩统腾格尔组沉积相[J].沉积学报,2008,26(4):594-599.
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