鄂尔多斯盆地富黄探区三叠系延长组高分辨率层序地层格架与古地貌恢复
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摘要
通过野外露头剖面、钻井剖面、岩心资料、地震资料的分析,对鄂尔多斯盆地南部富黄探区三叠系延长组开展层序地层研究。通过研究,识别出6个较大规模的层序界面和5个较大规模的洪泛面,由此将延长组划分为5个长期旋回。在长期旋回内部,根据次级的洪泛面及转换面特征,进一步将其划分为14个中期旋回,建立了中期旋回与砂组之间的对应关系,确定了延长组的高精度层序划分方案,明确了层序格架控制下的地层分布特征;得出了研究区地层分布具有东北、西南两个方向厚度大,其他区域厚度相对小的特点。同时,采用构造和沉积相结合研究方法,恢复了研究区的古地貌:研究区古地貌在湖盆演化的不同时期具有不同的特点,早期东北、西南高,中部低,分割性强;中期整体凹陷,差异小;晚期东北高,西南低。
Through the study of the analysis to outcrop section,drilling,core and seismic data,this paper studied in detail the sequence stratigraphic framework of the Triassic Yanchang formation in Fuhuang exploration had area in southern Ordos Basin. Six larger scale sequence boundaries and five larger scale flooding surfaces were been identified. In this research,Yanchang formation was divided into five long-term cycles,and fourteen mid-term cycles were identified in the five long-term cycles according to the characteristics of the secondary flooding surfaces and transitional surfaces. The correspondence between the mid-term cycles and the sand sets was established and the high resolution sequence delimiting of Yanchang formation was confirmed.The characteristics of stratigraphic distribution under the control of the sequence lattice are clarified,and definitely the strata distribution has characteristics that thickness in the northeast and the southwest is large and thickness in other areas is small. By the method of combination of structure and sedimentary,the palaeogeomorphology was resumed and It is believed that the paleogeomorphology of the study area has different characteristics in different periods of the lake basin evolution. In the early stage( Chang 9 and Chang 8 deposition stage),the northeastern and the southwestern areas were high and the middle area was low,the segmentation was clear. In the middle stage( Chang 7 deposition stage),the whole area was depression with little difference. In the late stage( Chang 4 + 5 and Chang 2 deposition stage),the northeastern area was high and the southwestern area was low.
Through the study of the analysis to outcrop section,drilling,core and seismic data,this paper studied in detail the sequence stratigraphic framework of the Triassic Yanchang formation in Fuhuang exploration had area in southern Ordos Basin. Six larger scale sequence boundaries and five larger scale flooding surfaces were been identified. In this research,Yanchang formation was divided into five long-term cycles,and fourteen mid-term cycles were identified in the five long-term cycles according to the characteristics of the secondary flooding surfaces and transitional surfaces. The correspondence between the mid-term cycles and the sand sets was established and the high resolution sequence delimiting of Yanchang formation was confirmed.The characteristics of stratigraphic distribution under the control of the sequence lattice are clarified,and definitely the strata distribution has characteristics that thickness in the northeast and the southwest is large and thickness in other areas is small. By the method of combination of structure and sedimentary,the palaeogeomorphology was resumed and It is believed that the paleogeomorphology of the study area has different characteristics in different periods of the lake basin evolution. In the early stage( Chang 9 and Chang 8 deposition stage),the northeastern and the southwestern areas were high and the middle area was low,the segmentation was clear. In the middle stage( Chang 7 deposition stage),the whole area was depression with little difference. In the late stage( Chang 4 + 5 and Chang 2 deposition stage),the northeastern area was high and the southwestern area was low.
引文
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[3]谢灏辰,于炳松,谭聪.鄂尔多斯盆地延长组米氏旋回分析及层序划分[J].大庆石油地质与开发,2016,35(1):43-47.
[4]熊林芳,刘池洋,王建强,等.鄂尔多斯盆地三叠系延长组沉积层序研究现状及问题[J].地层学杂志,2015,39(3):345-350.
[5]薛欢欢,李景哲,李恕军,等.INPEFA在高分辨率层序地层研究中的应用---以鄂尔多斯盆地油房庄地区长4+5油组为例[J].中国海洋大学学报(自然科学版),2015,45(7):101-106.
[6]刘犟,郑荣才,王海红,等.鄂尔多斯盆地红井子地区长9油层组层序分析与砂体预测[J].中国地质,2015,42(2):710-719.
[7]李国新,徐胜林,陈洪德,等.鄂尔多斯盆地富县地区上三叠统长6段砂体展布规律研究[J].中国地质,2012,39(4):923-930.
[8]周桂芹.鄂尔多斯盆地延长组中部层序地层格架及有利储层分布[J].油气地质与采收率,2012,19(2):16-19,112.
[9]肖玲,魏钦廉,郑荣才.鄂尔多斯盆地白豹地区长6油层组的高分辨率层序地层学研究[J].地层学杂志,2012,36(1):125-131.
[10]周静萍,汤军,周晓阳.鄂尔多斯盆地下寺湾地区延长组长8段高分辨率层序地层分析[J].岩性油气藏,2011,23(4):88-93.
[11]赵俊兴,申赵军,李良,等.大型内陆拗陷湖盆层序结构充填特征及其分布规律---以鄂尔多斯盆地延长组为例[J].岩石学报,2011,27(8):2318-2326.
[12]廖一,郑荣才,王成玉,等.鄂尔多斯盆地姬塬地区长8油层组高分辨率层序分析[J].沉积学报,2010,28(3):481-488.
[13]杨大超,何永波.高分辨率层序地层技术在鄂尔多斯盆地某井的应用[J].重庆科技学院学报(自然科学版),2008,10(5):40-42.
[14]党犇,赵虹,李文厚,等.鄂尔多斯盆地陕北地区上三叠统延长组不同级次层序界面的识别[J].中国地质,2007,34(3):414-421.
[15]王春宇,张志国,李兆明,等.鄂尔多斯盆地马岭油田高分辨率层序地层分析及沉积体系研究[J].地质力学学报,2007,13(1):70-77.
[16]傅强,李益.鄂尔多斯盆地三叠系延长组长8-长7油层组高分辨率层序地层格架及其地质意义[J].现代地质,2006,20(4):579-584.
[18]李凤杰,王多云.鄂尔多斯盆地西峰油田延长组高分辨率层序地层学研究[J].天然气地球科学,2006,17(3):339-344.
[19]李珊珊.鄂尔多斯盆地西北部延长组长9-10油层组沉积体系研究[D].青岛:中国石油大学(华东),2010.
[20]王宏波,郑希民,冯明.鄂尔多斯盆地三叠系延长组层序地层与生储盖组合特征[J].天然气地球科学,2006,17(5):677-681.
[21]李运振,刘震,郭彦如,等.鄂尔多斯盆地延长组层序地层特征[J].山东科技大学学报(自然科学版),2012,31(4):26-36.
[22]陈林,陆永潮,邢凤存,等.鄂尔多斯盆地南部延长组层序地层特征及充填演化模式[J].中南大学学报(自然科学版),2015,46(6):2196-2206.
[23]王宏波,郑希民,冯明.鄂尔多斯盆地三叠系延长组层序地层与生储盖组合特征[J].天然气地球科学,2006,17(5):677-681.
[24]王居峰,郭彦如,张延玲,等.鄂尔多斯盆地三叠系延长组层序地层格架与沉积相构成[J].现代地质,2009,23(5):803-808.
[25]赵天林,罗静兰,邓媛,等.鄂尔多斯盆地南梁西区延长组层序地层格架与生储盖组合特征[J].岩性油气藏,2013,25(5):49-58.
[26]周林,陈波,赵进义,等.鄂尔多斯志丹地区延长组高分辨率层序地层模式探讨[J].科学技术与工程,2014,14(1):165-169.
[27]赵俊兴,陈洪德,时志强.古地貌恢复技术方法及其研究意义---以鄂尔多斯盆地侏罗纪沉积前古地貌研究为例[J].成都理工学院学报,2001,28(6):260-266.
[28]姜正龙,邓宏文,林会喜,等.古地貌恢复方法及应用---以济阳拗陷桩西地区沙二段为例[J].现代地质,2009,23(5):865-871.
[29]杨蕾.泌阳凹陷孙岗-下二门地区地震相沉积相研究[D].西安:西安石油大学,2013.
[30]占小刚,赵俊省,欧阳甜子,等.川东北普光地区二叠系茅口组古地貌恢复研究[J].四川地质学报,2016,36(2):210-212.
[31]顾家裕,张兴阳.陆相层序地层学进展与在油气勘探开发中的应用[J].石油与天然气地质,2004,25(5):484-490.
[32]FALVEY D A,DEIGHTON I.Recent advances in burial and thermal geohistory analysis[J].The APEAJournal,1982,22:65-81.
[33]陈恭洋.地层压实恢复的定量计算[J].江汉石油学院学报,1996,18(1):1-6.
[2]谭聪,于炳松,阮壮,等.鄂尔多斯盆地西南部延长组高分辨率层序地层划分[J].吉林大学学报(地球科学版),2016,46(2):336-347.
[3]谢灏辰,于炳松,谭聪.鄂尔多斯盆地延长组米氏旋回分析及层序划分[J].大庆石油地质与开发,2016,35(1):43-47.
[4]熊林芳,刘池洋,王建强,等.鄂尔多斯盆地三叠系延长组沉积层序研究现状及问题[J].地层学杂志,2015,39(3):345-350.
[5]薛欢欢,李景哲,李恕军,等.INPEFA在高分辨率层序地层研究中的应用---以鄂尔多斯盆地油房庄地区长4+5油组为例[J].中国海洋大学学报(自然科学版),2015,45(7):101-106.
[6]刘犟,郑荣才,王海红,等.鄂尔多斯盆地红井子地区长9油层组层序分析与砂体预测[J].中国地质,2015,42(2):710-719.
[7]李国新,徐胜林,陈洪德,等.鄂尔多斯盆地富县地区上三叠统长6段砂体展布规律研究[J].中国地质,2012,39(4):923-930.
[8]周桂芹.鄂尔多斯盆地延长组中部层序地层格架及有利储层分布[J].油气地质与采收率,2012,19(2):16-19,112.
[9]肖玲,魏钦廉,郑荣才.鄂尔多斯盆地白豹地区长6油层组的高分辨率层序地层学研究[J].地层学杂志,2012,36(1):125-131.
[10]周静萍,汤军,周晓阳.鄂尔多斯盆地下寺湾地区延长组长8段高分辨率层序地层分析[J].岩性油气藏,2011,23(4):88-93.
[11]赵俊兴,申赵军,李良,等.大型内陆拗陷湖盆层序结构充填特征及其分布规律---以鄂尔多斯盆地延长组为例[J].岩石学报,2011,27(8):2318-2326.
[12]廖一,郑荣才,王成玉,等.鄂尔多斯盆地姬塬地区长8油层组高分辨率层序分析[J].沉积学报,2010,28(3):481-488.
[13]杨大超,何永波.高分辨率层序地层技术在鄂尔多斯盆地某井的应用[J].重庆科技学院学报(自然科学版),2008,10(5):40-42.
[14]党犇,赵虹,李文厚,等.鄂尔多斯盆地陕北地区上三叠统延长组不同级次层序界面的识别[J].中国地质,2007,34(3):414-421.
[15]王春宇,张志国,李兆明,等.鄂尔多斯盆地马岭油田高分辨率层序地层分析及沉积体系研究[J].地质力学学报,2007,13(1):70-77.
[16]傅强,李益.鄂尔多斯盆地三叠系延长组长8-长7油层组高分辨率层序地层格架及其地质意义[J].现代地质,2006,20(4):579-584.
[18]李凤杰,王多云.鄂尔多斯盆地西峰油田延长组高分辨率层序地层学研究[J].天然气地球科学,2006,17(3):339-344.
[19]李珊珊.鄂尔多斯盆地西北部延长组长9-10油层组沉积体系研究[D].青岛:中国石油大学(华东),2010.
[20]王宏波,郑希民,冯明.鄂尔多斯盆地三叠系延长组层序地层与生储盖组合特征[J].天然气地球科学,2006,17(5):677-681.
[21]李运振,刘震,郭彦如,等.鄂尔多斯盆地延长组层序地层特征[J].山东科技大学学报(自然科学版),2012,31(4):26-36.
[22]陈林,陆永潮,邢凤存,等.鄂尔多斯盆地南部延长组层序地层特征及充填演化模式[J].中南大学学报(自然科学版),2015,46(6):2196-2206.
[23]王宏波,郑希民,冯明.鄂尔多斯盆地三叠系延长组层序地层与生储盖组合特征[J].天然气地球科学,2006,17(5):677-681.
[24]王居峰,郭彦如,张延玲,等.鄂尔多斯盆地三叠系延长组层序地层格架与沉积相构成[J].现代地质,2009,23(5):803-808.
[25]赵天林,罗静兰,邓媛,等.鄂尔多斯盆地南梁西区延长组层序地层格架与生储盖组合特征[J].岩性油气藏,2013,25(5):49-58.
[26]周林,陈波,赵进义,等.鄂尔多斯志丹地区延长组高分辨率层序地层模式探讨[J].科学技术与工程,2014,14(1):165-169.
[27]赵俊兴,陈洪德,时志强.古地貌恢复技术方法及其研究意义---以鄂尔多斯盆地侏罗纪沉积前古地貌研究为例[J].成都理工学院学报,2001,28(6):260-266.
[28]姜正龙,邓宏文,林会喜,等.古地貌恢复方法及应用---以济阳拗陷桩西地区沙二段为例[J].现代地质,2009,23(5):865-871.
[29]杨蕾.泌阳凹陷孙岗-下二门地区地震相沉积相研究[D].西安:西安石油大学,2013.
[30]占小刚,赵俊省,欧阳甜子,等.川东北普光地区二叠系茅口组古地貌恢复研究[J].四川地质学报,2016,36(2):210-212.
[31]顾家裕,张兴阳.陆相层序地层学进展与在油气勘探开发中的应用[J].石油与天然气地质,2004,25(5):484-490.
[32]FALVEY D A,DEIGHTON I.Recent advances in burial and thermal geohistory analysis[J].The APEAJournal,1982,22:65-81.
[33]陈恭洋.地层压实恢复的定量计算[J].江汉石油学院学报,1996,18(1):1-6.
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