辽河西部凹陷欢喜岭地区沙河街组三段层序地层与沉积相研究
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摘要
利用高分辨率层序地层学方法,结合岩芯、测井和地震资料,识别辽河西部凹陷欢喜岭地区各级层序界面,建立地层层序格架,探讨地层格架下沉积相类型、演化规律以及平面展布,并就有利沉积相带分布进行了讨论。结果表明:从钻测井资料看出,层序界面识别标志主要为岩性和颜色发生突变,沉积相类型发生突变,电性特征发生明显变化等;将欢喜岭地区沙河街组划分为6个三级层序,12个四级层序;沙河街组三段发育扇三角洲、湖底扇和湖泊相等沉积相类型,其中,上亚段扇三角洲发育,中亚段广泛发育湖底扇相沉积,下亚段以深湖、滨浅湖相为主,斜坡边缘发育扇三角洲沉积;沙河街组三段中亚段湖底扇相和下亚段扇三角洲相的储集物性最好,为有利沉积相带。
With the high resolution sequence stratigraphy and the correlation analysis of cores,logs and seismic data,different orders of stratigraphic sequence interface were identified for the third member of Shahejie Formation of Huanxiling Area in the west depression of Liaohe Basin,the stratigraphic framework was built,the types of sedimentary facies,evolution and distribution of the framework were discussed,and the distribution of favorable sedimentary reservoir was forecasted.The results showed that the recognition marks of stratigraphic sequence interface were the significant changes of lithology,color,type of sedimentary facies and electricity character;Shahejie Formation of Huanxiling Area was divided into 6 three-order strata sequences and 12 four-order strata sequences;fan dalta,sublacustrine fan and lacustrine facies were developed in the third member of Shahejie Formation,fan dalta was developed in the upper subsection,sublacustrine fan was widely developed in the middle subsection,deep,littoral and shallow lacustrine facies was mainly developed in the lower subsection;reservoir physical properties of sublacustrine fan in the middle subsection of the third member of Shahejie Formation and fan dalta in the lower subsection were best,and it was the favorable sedimentary reservoir.
With the high resolution sequence stratigraphy and the correlation analysis of cores,logs and seismic data,different orders of stratigraphic sequence interface were identified for the third member of Shahejie Formation of Huanxiling Area in the west depression of Liaohe Basin,the stratigraphic framework was built,the types of sedimentary facies,evolution and distribution of the framework were discussed,and the distribution of favorable sedimentary reservoir was forecasted.The results showed that the recognition marks of stratigraphic sequence interface were the significant changes of lithology,color,type of sedimentary facies and electricity character;Shahejie Formation of Huanxiling Area was divided into 6 three-order strata sequences and 12 four-order strata sequences;fan dalta,sublacustrine fan and lacustrine facies were developed in the third member of Shahejie Formation,fan dalta was developed in the upper subsection,sublacustrine fan was widely developed in the middle subsection,deep,littoral and shallow lacustrine facies was mainly developed in the lower subsection;reservoir physical properties of sublacustrine fan in the middle subsection of the third member of Shahejie Formation and fan dalta in the lower subsection were best,and it was the favorable sedimentary reservoir.
引文
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[20]李德江,朱筱敏,董艳蕾,等.辽东湾拗陷古近系沙河街组层序地层分析[J].石油勘探与开发,2007,34(6):669-676.
[21]鞠俊成,张凤莲,喻国凡,等.辽河盆地西部凹陷南部沙三段储层沉积特征及含油气性分析[J].古地理学报,2001,3(1):63-70.
[22]林会喜,鄢继华,袁文芳,等.渤海湾盆地东营凹陷古近系沙河街组三段沉积相类型及平面分布特征[J].石油实验地质,2005,27(1):55-61.
[2]Cross T A.Stratigraphic Controls on Reservoir Attributes inContinental Strata[J].Earth Science Frontiers,2000,7(4):322-350.
[3]邓宏文.美国层序地层研究中的新学派——高分辨率层序地层学[J].石油与天然气地质,1995,16(2):89-97.
[4]侯维虹,渠永宏,张永庆,等.通过地层沉积过程进行储集层的精细描述[J].石油勘探与开发,2004,31(增刊):106-109.
[5]田景春,康建威,林小兵,等.台盆沉积体系及层序地层特征研究[J].西南石油大学学报:自然科学版,2007,29(6):39-42.
[6]范春花,王英民,陈振岩,等.陈家洼陷沙三下亚段层序地层和沉积相分析[J].西南石油大学学报:自然科学版,2009,31(2):31-35.
[7]李宏伟,朱怡翔,李胜利,等.辽河西部凹陷北部地区隐蔽油气藏预测与成藏机制分析[J].石油勘探与开发,2003,30(1):44-46.
[8]于福生,吉珍娃,杨雪,等.辽河盆地西部凹陷北部地区新生代断裂特征与圈闭类型[J].地球科学与环境学报,2007,29(2):149-153.
[9]张凤奇,庞雄奇,冷济高,等.辽河西部凹陷构造圈闭含油性定量预测模型[J].西南石油大学学报:自然科学版,2009,31(2):27-30.
[10]陈金龙,张庆龙,于兰兄,等.断层对辽河盆地杜229断块超稠油成藏与生产的影响[J].地球科学与环境学报,2006,28(3):48-52.
[11]许坤,潘耀丽,彭峰.辽河盆地下第三系层序分析[J].地层学杂志,1997,21(4):267-274.
[12]沈守文,彭大钧,颜其彬,等.层序地层学预测隐蔽油气藏的原理和方法[J].地球学报,2000,21(3):300-305.
[13]徐怀大.层序地层学理论用于我国断陷盆地分析中的问题[J].石油与天然气地质,1991,12(1):52-57.
[14]郝雪峰.陆相断陷盆地层序地层与成藏单元类比分析——以济阳拗陷为例[J].油气地质与采收率,2007,14(2):16-18.
[15]邱桂强.陆相断陷盆地高精度层序地层研究现状与思路[J].油气地质与采收率,2005,12(3):1-4.
[16]樊太亮,李卫东.层序地层应用于陆相油藏预测的成功实例[J].石油学报,1999,20(2):12-17.
[17]廖兴明,姚继峰,于天庆,等.辽河盆地构造演化与油气[M].北京:石油工业出版社,1996.
[18]高先志,李敬生,李晓光,等.辽河西部凹陷兴隆台—马圈子地区沙三段层序地层研究[C]∥匡立春,顾家裕,吕焕通,等.油气层序地层学新进展.北京:石油工业出版社,2006:68-69.
[19]袁波,陈世悦,袁文芳,等.辽西凹陷欢喜岭地区沙河街组层序格架的建立[J].西南石油大学学报:自然科学版,2008,30(2):27-30.
[20]李德江,朱筱敏,董艳蕾,等.辽东湾拗陷古近系沙河街组层序地层分析[J].石油勘探与开发,2007,34(6):669-676.
[21]鞠俊成,张凤莲,喻国凡,等.辽河盆地西部凹陷南部沙三段储层沉积特征及含油气性分析[J].古地理学报,2001,3(1):63-70.
[22]林会喜,鄢继华,袁文芳,等.渤海湾盆地东营凹陷古近系沙河街组三段沉积相类型及平面分布特征[J].石油实验地质,2005,27(1):55-61.
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