沙雅隆起白垩系卡普沙良群层序地层与沉积模式
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摘要
综合运用钻井、测井和地震资料,对塔里木盆地沙雅隆起白垩系卡普沙良群进行了层序地层及沉积相研究。沙雅隆起处于库车前陆盆地的前隆带和隆后坳陷,卡普沙良群对应于一幕逆冲构造活动,其内细分的3个层序(SQ1-SQ3)对应前陆盆地的不同演化阶段。SQ1处于逆冲构造活动的初始期,低位体系域占主导,前隆带中部剥蚀,其两侧斜坡发育来自该剥蚀区的扇三角洲、辫状河三角洲沉积,隆后坳陷则发育来自前隆带及盆地腹部的三角洲沉积;SQ2处于逆冲构造活动增强期,湖侵体系域相对发育,前隆带整体沉降至水下,以滨浅湖沉积为主,隆后坳陷则主要发育曲流河三角洲沉积;SQ3处于逆冲构造活动减弱期和停滞期,以高位体系域的相对发育为特征,前隆带和隆后坳陷成为一体,发育曲流河三角洲和辫状河三角洲沉积。
Based on the drilling,logging and seismic data,the sequence stratigraphy and sedimentary facies of Kapushaliang group of Cretaceous are studied in Shaya uplift of Tarim basin.Shaya uplift locates in the forebulge and backage of Kuqa foreland basin,and Kapushaliang group responds to an episodic thrust structural activities of foreland basin.Kapushaliang group is divided into three strata sequences(SQ1-SQ3),which correspond to different structural evolution satges of foreland basin.SQ1 is in the intial stage of thrust activities,and the lowstand systems tract of SQ1 is dominant.The northern and southern slopes of forebulge develop fan delta and braided river delta,whose sediments come from the denuded middle forebulge.The facies of backage is delta,whose provenance is from the backage and the hinterland of Tarim basin.SQ2 is in the enhanced stage of thrust activities,and the trangressive systems tract of SQ2 is relatively developed.The whole forebulge is under water,and its facies is mainly shore-shallow lacustrine.The backage develops meandering river delta.SQ3 is in the extenuation and stagnate stages,and the highstand systems tract of SQ3 plays a dominant role.The forebulge and backage become one unit,and the facies are mainly comprised of meandering river delta and braided river delta.
Based on the drilling,logging and seismic data,the sequence stratigraphy and sedimentary facies of Kapushaliang group of Cretaceous are studied in Shaya uplift of Tarim basin.Shaya uplift locates in the forebulge and backage of Kuqa foreland basin,and Kapushaliang group responds to an episodic thrust structural activities of foreland basin.Kapushaliang group is divided into three strata sequences(SQ1-SQ3),which correspond to different structural evolution satges of foreland basin.SQ1 is in the intial stage of thrust activities,and the lowstand systems tract of SQ1 is dominant.The northern and southern slopes of forebulge develop fan delta and braided river delta,whose sediments come from the denuded middle forebulge.The facies of backage is delta,whose provenance is from the backage and the hinterland of Tarim basin.SQ2 is in the enhanced stage of thrust activities,and the trangressive systems tract of SQ2 is relatively developed.The whole forebulge is under water,and its facies is mainly shore-shallow lacustrine.The backage develops meandering river delta.SQ3 is in the extenuation and stagnate stages,and the highstand systems tract of SQ3 plays a dominant role.The forebulge and backage become one unit,and the facies are mainly comprised of meandering river delta and braided river delta.
引文
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[14]王家豪,王华,陈红汉,等.库车前陆盆地前渊带层序地层分析:以白垩系卡普沙良群为例[J].地质科技情报,2005,24(1):25-29.WANG Jiahao,WANG Hua,CHEN Honghan,et al.Sequence stratigraphy of the foredeep in Kuqaforeland basin,Xin-jiang:An example from the Cretaceous Kapushaliang group[J].Geological Science and Technology Information,2005,24(1):25-29.
[15]余一欣,汤良杰,杨文静,等.库车前陆褶皱—冲断带前缘盐构造分段差异变形特征[J].地质学报,2007,81(2):166-173.YU Yixin,TANG Liangjie,YANG Wenjing,et al.Structural segmentation of salt structures in the frontal ranges of theKuqaforeland fold and thrust belt,northern Tarim basin[J].ActaGeologicaSinica,2007,81(2):166-173.
[16]王家豪,王华,陈红汉,等.一幕完整的前陆盆地构造演化的地层记录:库车坳陷下白垩统[J].地质科技情报,2006,25(6):31-36.WANG Jiahao,WANG Hua,CHEN Honghan,et al.Stratigraphic record in awhole episode of foreland basin tectonic evo-lution:The lower Cretaceous in Kuqadepression[J].Geological Science and Technology Information,2006,25(6):31-36.
[2]严德天,王华,王家豪,等.库车坳陷东部白垩系沉积体系分析及有利油气勘探区带预测[J].地质学报,2006,80(3):382-389.YAN Detian,WANG Hua,WANG Jiahao,et al.Analysis of depositional systems and prediction of favorable regions of theCretaceous in the east part of the Kuqa depression[J].Acta Geologica Sinica,2006,80(3):382-389.
[3]朱如凯,高志勇,郭宏莉,等.塔里木盆地北部白垩系-古近系不同段、带沉积体系比较研究[J].沉积学报,2007,25(3):325-331.ZHU Rukai,GAO Zhiyong,GUO Hongli,et al.Comparative of different segmentations and zones during Cretaceous and Pa-leogene in north Tarim basin[J].Acta Sedmentologica Sinica,2007,25(3):325-331.
[4]林畅松,王清华,肖建新.库车坳陷白垩纪沉积层序构成及充填响应模式[J].中国科学(D辑),2004,34(增1):74-82.LIN Changsong,WANG Qinghua,XIAO Jianxin,et al.Depositional sequence architecture and filling response model of theCretaceous in the Kuqa depression,Tarim basin[J].Science in China:Ser.D,2004,34(S1):74-82.
[5]旷理雄,郭建华,黄太柱.塔里木盆地阿克库勒凸起于奇地区哈拉哈塘组油气成藏机制[J].吉林大学学报:地球科学版,2008,38(2):249-254.KUANG Lixiong,GUO Jianhua,HUANG Taizhu.Forming mechanism of hydrocarbon reservoirs of Halahatang formationin Yuqi block in Akekule arch,Tarim basin[J].Journal of Jilin University:Earth Science Edition,2008,38(2):249-254.
[6]赵迎月,顾汉明,蔡成国.塔河油田三叠系砂岩储层地震正演响应特征[J].天然气工业,2008,28(6):52-55.ZHAO Yingyue,GU Hanming,CAI Chengguo.Characteristics of seismic response to Triassic sandstone reservoirs in theTahe oilfield[J].Natural Gas Industry,2008,28(6):52-55.
[7]朱美衡,郭建华,石媛媛,等.塔河地区石炭系层序地层及与邻区的对比[J].石油勘探与开发,2005,32(3):23-26.ZHU Meiheng,GUO Jianhua,SHI Yuanyuan,et al.Carboniferous sequence stratigraphic correlation of Tahe and adjacentareas,Tarim Basin[J].Petroleum Exploration and Development,2005,32(3):23-26.
[8]刘勇,王振宇,马青.英买力地区白垩系沉积特征及沉积相类型[J].新疆石油地质,2007,28(1):20-24.LIU Yong,WANG Zhenyu,MA Qing.Characteristics and types of sedimentary facies of Cretaceous in Yinmaili area[J].Xinjiang Petroleum Geology,2007,28(1):20-24.
[9]赵敖山,丁勇,赵胜利.塔北沙西—轮台地区亚格列木组砂岩沉积相及储层评价[J].新疆地质,1999,17(3):263-269.ZHAO Aoshan,DING Yong,ZHAO Shengli.Sediment facies and reservoir appreciation of sandstone of Yageliemu formationfrom Shaxi-Luntai zone of northern Tarim basin[J].Xinjiang Geology,1999,17(3):263-269.
[10]徐才文,李宗杰,杨子川.天然气储层预测技术及应用:以雅克拉地区卡普沙良群底块砂岩储层为例[J].勘探地球物理进展,2008,31(5):392-397.XU Caiwen,LI Zongjie,YANG Zichuan.Techniques and application of gas reservoir prediction:Taking the sandstone reser-voir of Kapushaliang group in Yakelaareaas an example[J].Progress in Exploration Geophysics,2008,31(5):392-397.
[11]何发岐,梅廉夫,费琪,等.前陆盆地前缘隆起带圈闭的形成及其含油气性:以塔里木盆地沙雅隆起为例[J].石油实验地质,2006,28(5):418-422.HE Faqi,MEI Lianfu,FEI Qi,et al.The formation and petroleum-bearing capacity of traps in the frontal uplift of the fore-land basin:Taking the Shayauplift of the Tarim basin as an example[J].Petroleum Geology&Experiment,2006,28(5):418-422.
[12]王家豪,王华,赵忠新,等.库车前陆盆地东部白垩系:古近系层序地层及其构造响应研究[M].武汉:中国地质大学出版社,2006.
[13]严德天,王华,王家豪,等.库车前陆盆地白垩系层序地层样式及控制因素分析[J].沉积学报,2006,24(6):841-848.YAN Detian,WANG Hua,WANG Jiahao,et al.Analysis of the Cretaceous sequence-stratigraphic pattern and controllingfactors in Kuqaforeland basin[J].ActaSedmentologicaSinica,2006,24(6):841-848.
[14]王家豪,王华,陈红汉,等.库车前陆盆地前渊带层序地层分析:以白垩系卡普沙良群为例[J].地质科技情报,2005,24(1):25-29.WANG Jiahao,WANG Hua,CHEN Honghan,et al.Sequence stratigraphy of the foredeep in Kuqaforeland basin,Xin-jiang:An example from the Cretaceous Kapushaliang group[J].Geological Science and Technology Information,2005,24(1):25-29.
[15]余一欣,汤良杰,杨文静,等.库车前陆褶皱—冲断带前缘盐构造分段差异变形特征[J].地质学报,2007,81(2):166-173.YU Yixin,TANG Liangjie,YANG Wenjing,et al.Structural segmentation of salt structures in the frontal ranges of theKuqaforeland fold and thrust belt,northern Tarim basin[J].ActaGeologicaSinica,2007,81(2):166-173.
[16]王家豪,王华,陈红汉,等.一幕完整的前陆盆地构造演化的地层记录:库车坳陷下白垩统[J].地质科技情报,2006,25(6):31-36.WANG Jiahao,WANG Hua,CHEN Honghan,et al.Stratigraphic record in awhole episode of foreland basin tectonic evo-lution:The lower Cretaceous in Kuqadepression[J].Geological Science and Technology Information,2006,25(6):31-36.
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