鱼卡煤田大煤沟组高分辨率层序地层特征及聚煤规律
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摘要
利用高分辨率层序地层学理论和技术方法,综合地震、测井、岩芯和煤质资料对柴达木盆地北缘鱼卡煤田中下侏罗统大煤沟组地层河湖三角洲沉积体系进行高分辨率层序地层学分析,从中识别出短期、中期、长期3个级别的基准面旋回层序,划分出向上"变深"非对称型、向上"变浅"非对称型及对称型3种短期基准面旋回基本结构类型。依据等时地层对比法则进行不同级次基准面旋回层序的联井对比,建立了大煤沟组的等时地层格架,在等时地层格架内进行了煤层对比,并在等时地层格架内分析了聚煤规律。
On the basis of integrated well data and seismic data,combined with the high resolution sequence stratigraphic data,the river-lake delta sedimentary system of the Dameigou Formation in the Yuka Coal Field in the north margin of the Qaidam Basin,was divided into short-term,middle-term and long-term base-level cycles.A short-term base-level cycle could be subdivided into asymmetric up-deepening,asymmetric up-shallowening and symmetric basic structure types.The base-level cycles of different orders are correlated in the restriction cycle isochrostratigraphy correlation.Isochronous stratigraphic frameworks are established and coal is correlated within them.Finally,the patterns of coal accumulation were analyzed within the isochronous stratigraphic frameworks.
On the basis of integrated well data and seismic data,combined with the high resolution sequence stratigraphic data,the river-lake delta sedimentary system of the Dameigou Formation in the Yuka Coal Field in the north margin of the Qaidam Basin,was divided into short-term,middle-term and long-term base-level cycles.A short-term base-level cycle could be subdivided into asymmetric up-deepening,asymmetric up-shallowening and symmetric basic structure types.The base-level cycles of different orders are correlated in the restriction cycle isochrostratigraphy correlation.Isochronous stratigraphic frameworks are established and coal is correlated within them.Finally,the patterns of coal accumulation were analyzed within the isochronous stratigraphic frameworks.
引文
邓宏文.1995.美国层序地层研究中的新学派:高分辨率层序地层学.石油与天然气地质,16(2):89—97
邓宏文,王洪亮,李熙喆.1996.层序地层地层基准面的识别、对比技术及应用.石油与天然气地质,17(3):177—184
田景春,陈洪德,覃建雄.2003.层序底界面的物质表现形式——以中国南方海相震旦系—中三叠统为例.沉积学报,21(4):675—680
尹艳树,吴胜和,尹太举.2006.濮城油田沙三中亚段高分辨率层序地层学.地层学杂志,30(1):54—59
张鹏飞.2003.含煤岩系沉积学研究的几点思考.沉积学报,21(1):125—136
郑荣才,彭军,吴朝容.2001.陆相盆地基准面旋回的级次划分和研究意义.沉积学报,19(2):249-255
郑荣才,彭军,彭光明,盘昌林,高红灿.2003.高分辨率层序分析在油藏开发工程中的应用——以百色盆地仑35块那二段油藏为例.沉积学报,21(4):654—655
郑荣才,吴朝容,叶茂才.2000.浅谈陆相盆地高分辨率层序地层研究思路.成都理工学院学报,27(3):241—244
Cross T A.1994.Stratigraphic architecture,correlation concepts,volumetric partioning,facies differention,and reservoir comp-art mentalization from the perspective of high resolution se-quence stratigraphy.Research Report ofthe Genetic Stratigra-phy Research Group,DGGE,CSM:28—41
Deng Hong-wen.1995.A newschool of thought in sequence strati-graphic studies in US:high-resolution sequence stratigraphy.Oil&Gas Geology,16(2):89—97
Deng Hong-wen,Wang Hong-liang&Li Xi-zhe.1996.Identifica-tion and correlation techniques of sequence stratigraphic base-levels and their application.Oil&Gas Geology,17(3):177—184
Saylor B Z.2003.Sequence stratigraphy and carbonate-siliciclasticmixing in terminal Proterozoic foreland basin,Urusis Forma-tion,Nama Group,Namibia.Journal of Sedimantary Re-search,73(2):264—279
Tian Jing-chun,Chen Hong-de,Tan Jian-xiong,Hou Ming-cai&Zhao Jun-xing.2003.The apparent types of sequence bottomboundary surface:taking marine Sinian systemto Middle Trias-sic Series in South China as an example.Acta SedimentologicaSinica,21(4):675—680
Yin Yan-shu,Wu Sheng-he&Yin Tai-ju.2006.High resolution se-quence stratigraphy of Es32in Pucheng Oilfield,Dongpu Depres-sion.Journal of Stratigraphy,30(1):54—59
Zhang Peng-fei.2003.Some considerations on coal measures sedim-entology.Acta Sedimentologica Sinica,21(1):125—136
Zheng Rong-cai,Peng Jun&Wu Chao-rong.2001.Grade division ofbase-level cycles of terrigenous basin and its implications.ActaSedimentologica Sinica,19(2):249-255
Zheng Rong-cai,Peng Jun,Peng Guang-ming,Pan Chang-lin&Gao Hong-can.2003.Analysis of high-resolution sequencestratigraphy of the Second Member of Nadu Formation in Lun-35Block of Baise Basin andits applicationin development of oilreservoir.Acta Sedimentologica Sinica,21(4):654—655
Zheng Rong-cai,Wu Chao-rong&Ye Mao-cai.2000.Researchthinking of high-resolution sequence stratigraphy about a terrig-enous basin.Journal of Chengdu University of Technology,27(3):241—244
邓宏文,王洪亮,李熙喆.1996.层序地层地层基准面的识别、对比技术及应用.石油与天然气地质,17(3):177—184
田景春,陈洪德,覃建雄.2003.层序底界面的物质表现形式——以中国南方海相震旦系—中三叠统为例.沉积学报,21(4):675—680
尹艳树,吴胜和,尹太举.2006.濮城油田沙三中亚段高分辨率层序地层学.地层学杂志,30(1):54—59
张鹏飞.2003.含煤岩系沉积学研究的几点思考.沉积学报,21(1):125—136
郑荣才,彭军,吴朝容.2001.陆相盆地基准面旋回的级次划分和研究意义.沉积学报,19(2):249-255
郑荣才,彭军,彭光明,盘昌林,高红灿.2003.高分辨率层序分析在油藏开发工程中的应用——以百色盆地仑35块那二段油藏为例.沉积学报,21(4):654—655
郑荣才,吴朝容,叶茂才.2000.浅谈陆相盆地高分辨率层序地层研究思路.成都理工学院学报,27(3):241—244
Cross T A.1994.Stratigraphic architecture,correlation concepts,volumetric partioning,facies differention,and reservoir comp-art mentalization from the perspective of high resolution se-quence stratigraphy.Research Report ofthe Genetic Stratigra-phy Research Group,DGGE,CSM:28—41
Deng Hong-wen.1995.A newschool of thought in sequence strati-graphic studies in US:high-resolution sequence stratigraphy.Oil&Gas Geology,16(2):89—97
Deng Hong-wen,Wang Hong-liang&Li Xi-zhe.1996.Identifica-tion and correlation techniques of sequence stratigraphic base-levels and their application.Oil&Gas Geology,17(3):177—184
Saylor B Z.2003.Sequence stratigraphy and carbonate-siliciclasticmixing in terminal Proterozoic foreland basin,Urusis Forma-tion,Nama Group,Namibia.Journal of Sedimantary Re-search,73(2):264—279
Tian Jing-chun,Chen Hong-de,Tan Jian-xiong,Hou Ming-cai&Zhao Jun-xing.2003.The apparent types of sequence bottomboundary surface:taking marine Sinian systemto Middle Trias-sic Series in South China as an example.Acta SedimentologicaSinica,21(4):675—680
Yin Yan-shu,Wu Sheng-he&Yin Tai-ju.2006.High resolution se-quence stratigraphy of Es32in Pucheng Oilfield,Dongpu Depres-sion.Journal of Stratigraphy,30(1):54—59
Zhang Peng-fei.2003.Some considerations on coal measures sedim-entology.Acta Sedimentologica Sinica,21(1):125—136
Zheng Rong-cai,Peng Jun&Wu Chao-rong.2001.Grade division ofbase-level cycles of terrigenous basin and its implications.ActaSedimentologica Sinica,19(2):249-255
Zheng Rong-cai,Peng Jun,Peng Guang-ming,Pan Chang-lin&Gao Hong-can.2003.Analysis of high-resolution sequencestratigraphy of the Second Member of Nadu Formation in Lun-35Block of Baise Basin andits applicationin development of oilreservoir.Acta Sedimentologica Sinica,21(4):654—655
Zheng Rong-cai,Wu Chao-rong&Ye Mao-cai.2000.Researchthinking of high-resolution sequence stratigraphy about a terrig-enous basin.Journal of Chengdu University of Technology,27(3):241—244
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