准噶尔盆地车排子地区白垩系层序地层特征及演化模式
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摘要
据层序地层学与沉积学理论,利用地震、钻井、录井、测井等资料,以覆盖研究区的三维地震资料为主要依据,识别不同级别层序界面。明确了白垩系内部层序地层格架,共发育4个三级层序,清水河组层序为三分结构,其余层序为二分结构。层序形成过程中,三分层序主要受控于古气候,二分层序主控因素是构造运动。格架约束下的沉积响应表现为:湖侵域主要发育滨浅湖滩坝,湖退域主要发育缓坡型扇三角洲。
Under the direction of principles of sequence stratigraphy and sedimentology,comprehensive use the seismic、drilling、logging and well-logging data.Based on the 3D seismic data covered the study area,identify the sequence boundary,and combine well with seismic to mutual authenticated, finally establish the sequence stratigraphic framework of cretaceous of chepaizi area.Cretaceous can be subdivided into 4 third- order sequences. The sequence of Qingshuihe Formation can be divided into 3 system tracts,and the other sequences can be divided into 2 system tracts.During the formation of sequence,climate dominate the formation of two stratified sequence,and tectonic movements dominate the formation of three stratified sequence.And in the transgressive system tracts mainly develop beach-bar sand body, in the regression system tracts mainly develop flat slope fan delta.
Under the direction of principles of sequence stratigraphy and sedimentology,comprehensive use the seismic、drilling、logging and well-logging data.Based on the 3D seismic data covered the study area,identify the sequence boundary,and combine well with seismic to mutual authenticated, finally establish the sequence stratigraphic framework of cretaceous of chepaizi area.Cretaceous can be subdivided into 4 third- order sequences. The sequence of Qingshuihe Formation can be divided into 3 system tracts,and the other sequences can be divided into 2 system tracts.During the formation of sequence,climate dominate the formation of two stratified sequence,and tectonic movements dominate the formation of three stratified sequence.And in the transgressive system tracts mainly develop beach-bar sand body, in the regression system tracts mainly develop flat slope fan delta.
引文
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[10]吴孔友,查明,王绪龙,等.准噶尔盆地构造演化与动力学背景再认识[J].地球学报,2005,26(3):217-222.
[2]陈轩,张尚锋,支东明,等.准噶尔盆地车排子地区新近系沙湾组油气突破的一些启示[J].石油天然气学报,2009,31(5):64-69.
[3]洪太元,王离迟,孟闲龙,等.准噶尔盆地西缘车排子地区油气成藏的主控因素[J].新疆地质,2007,25(4):389-393.
[4]刘传虎,王学忠.准噶尔盆地车排子地区层序地层结构及有利储集相带[J].新疆石油地质,2012,33(1):1-5.
[5]杨勇,陈世悦,向奎,等.准噶尔盆地西北缘车排子地区下白垩统层序地层与沉积演化[J].中国石油大学学报(自然科学版),2011,35(5):20-26.
[6]贺子倩,张尚锋,陈轩,等.准噶尔盆地红车断裂带白垩系层序与岩性圈闭预测[J].新疆石油地质,2008,29(6):728-731.
[7]操应长.断陷湖盆层序地层学[M].北京:地质出版社,2005:33-45.
[8]董臣强.准噶尔盆地车排子地区成藏特征分析[J].油气地球物理,2008,6(4):34-37.
[9]金鑫,陆永潮,卢林.准噶尔盆地车排子地区中、新生界沉降史分析[J].海洋石油,2007,27(3):51-56.
[10]吴孔友,查明,王绪龙,等.准噶尔盆地构造演化与动力学背景再认识[J].地球学报,2005,26(3):217-222.
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