Sedimentary model reconstruction and exploration significance of Permian He 8 Member in Ordos Basin,NW China
|
摘要
Based on the Late Paleozoic geological background and the latest exploration achievements of the Ordos Basin and North China platform, it is concluded that during the sedimentary period of Permian He 8 Member, the area in concern had multiple material sources, multiple river systems, flat terrain, shallow sedimentary water, widely distributed fluvial facies sand body and no continuous lake area, so alluvial river sedimentary system developed in the whole region. Based on stratigraphic correlation and division, and a large number of drilling and outcrop data, a comprehensive analysis of lithofacies and sedimentary facies types and distribution was carried out to reconstruct the ancient geographic pattern of the He 8 Member sedimentary period. The results of paleogeography restoration show that the area of Ordos Basin was the "runoff area" in the sedimentary slope in the western part of the North China platform during the sedimentary period of He 8 Member, the whole region was mainly alluvial plain sedimentation featuring alternate fluvial facies, flood plain facies and flood-plain lake facies. According to the results of flume deposition simulation experiment, a new sedimentary model of "alluvial river & flood-plain lake" is established, which reveals the genesis of large area gravel sand body in He 8 Member of this area and provides geological basis for the exploration of tight gas in the south of the basin.
Based on the Late Paleozoic geological background and the latest exploration achievements of the Ordos Basin and North China platform, it is concluded that during the sedimentary period of Permian He 8 Member, the area in concern had multiple material sources, multiple river systems, flat terrain, shallow sedimentary water, widely distributed fluvial facies sand body and no continuous lake area, so alluvial river sedimentary system developed in the whole region. Based on stratigraphic correlation and division, and a large number of drilling and outcrop data, a comprehensive analysis of lithofacies and sedimentary facies types and distribution was carried out to reconstruct the ancient geographic pattern of the He 8 Member sedimentary period. The results of paleogeography restoration show that the area of Ordos Basin was the "runoff area" in the sedimentary slope in the western part of the North China platform during the sedimentary period of He 8 Member, the whole region was mainly alluvial plain sedimentation featuring alternate fluvial facies, flood plain facies and flood-plain lake facies. According to the results of flume deposition simulation experiment, a new sedimentary model of "alluvial river & flood-plain lake" is established, which reveals the genesis of large area gravel sand body in He 8 Member of this area and provides geological basis for the exploration of tight gas in the south of the basin.
Based on the Late Paleozoic geological background and the latest exploration achievements of the Ordos Basin and North China platform, it is concluded that during the sedimentary period of Permian He 8 Member, the area in concern had multiple material sources, multiple river systems, flat terrain, shallow sedimentary water, widely distributed fluvial facies sand body and no continuous lake area, so alluvial river sedimentary system developed in the whole region. Based on stratigraphic correlation and division, and a large number of drilling and outcrop data, a comprehensive analysis of lithofacies and sedimentary facies types and distribution was carried out to reconstruct the ancient geographic pattern of the He 8 Member sedimentary period. The results of paleogeography restoration show that the area of Ordos Basin was the "runoff area" in the sedimentary slope in the western part of the North China platform during the sedimentary period of He 8 Member, the whole region was mainly alluvial plain sedimentation featuring alternate fluvial facies, flood plain facies and flood-plain lake facies. According to the results of flume deposition simulation experiment, a new sedimentary model of "alluvial river & flood-plain lake" is established, which reveals the genesis of large area gravel sand body in He 8 Member of this area and provides geological basis for the exploration of tight gas in the south of the basin.
引文
[1]YANG Hua,FU Jinhua,LIU Xinshe,et al.Accumulation conditions and exploration and development of tight gas in the Upper Paleozoic of the Ordos Basin.Petroleum Exploration and Development,2012,39(3):295-303.
[2]TIAN Jingchun,WU Qi,WANG Feng,et al.Research on development factors and the deposition model of large area reservoir sandstones of He8 section of Xiashihezi Formation of Permian in Ordos Basin.Acta Petrologica Sinica,2011,27(8):2403-2412
[3]SHEN Yulin,GUO Yinghai,LI Zhuangfu.Sedimentary facies of the Shanxi Formation and Member8 of Xiashihezi Formation of Permian in Suligemiao area,Ordos Basin.Journal of Palaeogeography,2006,8(1):53-62
[4]WANG Chaoyong,CHEN Mengjin,WANG Zecheng,et al.Sedimentary facies of the Shanxi Formation and Member8 of Xiashihezi Formation of Permian in southern Ordos Basin.Journal of Palaeogeography,2007,9(4):369-378.
[5]LI Jie,CHEN Hongde,HOU Zhongjian,et al.Sedimentary characteristics of the braided deltas in the eighth member of the Lower Shihezi Formation in the northeastern part of the Ordos Basin.Sedimentary Geology and Tethyan Geology,2008,28(1):26-32.
[6]WEN Huaguo,ZHENG Rongcai,GAO Hongcan,et al.Sedimentary facies of the 8th Member of lower Shihezi Formationin Su6 Area,Sulige Gas Field.Acta Sedimentologica Sinica,2007,25(1):90-98.
[7]YANG Xiyan,SHEN Zhaoguo,FANG Shaoxian,et al.Sedimentary characteristics of beach and bar sand bodies in the lower sub member of Member 8 of Xiashihezi Formation of Middle Permian in Wushenqi Gas field,Ordos Basin.Journal of Palaeogeography,2007,9(2):175-182.
[8]XIAO Jianxin,SUN Fenjin,HE Naixiang,et al.Permian Shanxi Formation and Member 8 of Xiashihezi Formation in Ordos Basin:Palaeogeography and catchment area for sediments derived from north and south provenances.Journal of Palaeogeography,2008,10(4):341-354.
[9]WANG Weihong,TIAN Jingchun,ZHANG Jinquan.Research on sedimentary environment of the Member8 of Middile Permian Xiashihezi formation in Ordos Basin,China.Journal of Chengdu University of Technology(Science&Technology Edition),2016,43(2):224-232.
[10]YANG Junjie.Tectonic evolution and distribution of oil and gas distribution in Ordos Basin.Beijing:Petroleum Industry Press,2002.
[11]ZHAO Chongyuan,LIU Chiyang.Formation and evolution of north China craton sedimentary basin and its hydrocarbon accumulation.Xi'an:Northwestern University Press,1990.
[12]SHAO Longyi,DONG Daxiao,LI Mingpei,et al.Sepuencepaleogeograpgy and coal accumulation of the Carboniferous-Permian in the North China Basin.Journal of China Coal Society,2014,39(8):1725-1734.
[13]CHEN Quanhong,LI Wenhou,HU Xiaolin,et al.Tectonic setting and provenance analysis of late Paleozoic sedimentary rocks in the Ordos Basin.Acta Geologica Sinica,2012,86(7):1150-1162.
[14]CHEN Mengjin,WANG Zecheng,Guo Yanru,et al.Late Paleozoic sedimentary systems and gas potential in the south Ordos Basin.Petroleum Exploration and Development,2006,33(1):1-5.
[15]LI Yalong,YU Xinghe,SHAN Xin,et al.Provenance and sedimentary facies of He8 member of Xiashihezi formation in Southeastern Ordos Basin.Journal of Northeast Petroleum University,2016,40(3):51-60.
[16]ZHANG Zonglin,TIAN Jingchun,LUO Xiangjian,et al.Sedimentary characteristics of flood debris flow and traction current in the lower Shihezi Formation of Permian in the Northern of Ordos Basin.Journal of Earth Sciences and Environment,2014,36(7):21-30.
[17]WANG Hongzhen.Paleogeophic atlas of China.Beijing:China Cartographic Press.1985.
[18]PEI Fang.Multiple stratigraphic division and correlation of the Permo-Carboniferous of Yuzhou of Henan and Taiyuan of Shanxi.Regional Geology of China,1999,18(2):132-147.
[19]CHEN Jinbiao,WU Tieshan.Regional stratigraphic in the North China.Wuhan:China University of Geosciences Press,1997:90-95.
[20]All China Commission of Stratigraphy.Chinese stratigraphic guidelines and instructions for Chinese stratigraphic guidelines.Beijing:Geology Press,2001:55-56.
[21]CHEN Shiyue,LIU Huanjie.Sequence stratigraphic framework and its characteristics of the Carboniferous-Permian in north China.Acta Sedimentologica Sinica,1999,17(1):63-70.
[22]TANG Min’an,SUN Baoling.High-resolution sequence stratigraphic analysis of Lower Shihezi Formation of Daniudi Gasfield in Ordos Basin.Petroleum Exploration and Development,2007,34(1):48-54.
[23]LIU Rui’e,XIAO Hongping,FAN Liyong,et al.A depositional mode of flood-induced braided river delta in Permian of Ordos Basin.Acta Petrolei Sinica,2013,34(S1):120-127.
[24]YU Xinghe,WANG Defa,ZHENG Junmao.Lithofacies association types or sequences and depositional system of Permian sandstones in north China.Acta Sedimentologica Sinica,1992,11(1):27-35.
[25]WANG Defa,ZHENG Junmao,DENG Hongwen.A preliminary analysis of paleogeographic environments in Carboniferous-Permian system in Northern China.Earth Science--Journal of Wuhan College of Geology,1986,11(3):267-272.
[26]CHEN Shiyue,LIU Huanjie.Carboniferous-Permian lithofacies and paleogeography in the eastern part of the North China platform.Regional Geology of China,1997,16(4):379-386.
[27]YANG Hua,LIU Xinshe,YANG Yong.Status and prospects of tight gas exploration and development in the Ordos Basin.Engineering Sciences,2012,14(6):40-48.
[2]TIAN Jingchun,WU Qi,WANG Feng,et al.Research on development factors and the deposition model of large area reservoir sandstones of He8 section of Xiashihezi Formation of Permian in Ordos Basin.Acta Petrologica Sinica,2011,27(8):2403-2412
[3]SHEN Yulin,GUO Yinghai,LI Zhuangfu.Sedimentary facies of the Shanxi Formation and Member8 of Xiashihezi Formation of Permian in Suligemiao area,Ordos Basin.Journal of Palaeogeography,2006,8(1):53-62
[4]WANG Chaoyong,CHEN Mengjin,WANG Zecheng,et al.Sedimentary facies of the Shanxi Formation and Member8 of Xiashihezi Formation of Permian in southern Ordos Basin.Journal of Palaeogeography,2007,9(4):369-378.
[5]LI Jie,CHEN Hongde,HOU Zhongjian,et al.Sedimentary characteristics of the braided deltas in the eighth member of the Lower Shihezi Formation in the northeastern part of the Ordos Basin.Sedimentary Geology and Tethyan Geology,2008,28(1):26-32.
[6]WEN Huaguo,ZHENG Rongcai,GAO Hongcan,et al.Sedimentary facies of the 8th Member of lower Shihezi Formationin Su6 Area,Sulige Gas Field.Acta Sedimentologica Sinica,2007,25(1):90-98.
[7]YANG Xiyan,SHEN Zhaoguo,FANG Shaoxian,et al.Sedimentary characteristics of beach and bar sand bodies in the lower sub member of Member 8 of Xiashihezi Formation of Middle Permian in Wushenqi Gas field,Ordos Basin.Journal of Palaeogeography,2007,9(2):175-182.
[8]XIAO Jianxin,SUN Fenjin,HE Naixiang,et al.Permian Shanxi Formation and Member 8 of Xiashihezi Formation in Ordos Basin:Palaeogeography and catchment area for sediments derived from north and south provenances.Journal of Palaeogeography,2008,10(4):341-354.
[9]WANG Weihong,TIAN Jingchun,ZHANG Jinquan.Research on sedimentary environment of the Member8 of Middile Permian Xiashihezi formation in Ordos Basin,China.Journal of Chengdu University of Technology(Science&Technology Edition),2016,43(2):224-232.
[10]YANG Junjie.Tectonic evolution and distribution of oil and gas distribution in Ordos Basin.Beijing:Petroleum Industry Press,2002.
[11]ZHAO Chongyuan,LIU Chiyang.Formation and evolution of north China craton sedimentary basin and its hydrocarbon accumulation.Xi'an:Northwestern University Press,1990.
[12]SHAO Longyi,DONG Daxiao,LI Mingpei,et al.Sepuencepaleogeograpgy and coal accumulation of the Carboniferous-Permian in the North China Basin.Journal of China Coal Society,2014,39(8):1725-1734.
[13]CHEN Quanhong,LI Wenhou,HU Xiaolin,et al.Tectonic setting and provenance analysis of late Paleozoic sedimentary rocks in the Ordos Basin.Acta Geologica Sinica,2012,86(7):1150-1162.
[14]CHEN Mengjin,WANG Zecheng,Guo Yanru,et al.Late Paleozoic sedimentary systems and gas potential in the south Ordos Basin.Petroleum Exploration and Development,2006,33(1):1-5.
[15]LI Yalong,YU Xinghe,SHAN Xin,et al.Provenance and sedimentary facies of He8 member of Xiashihezi formation in Southeastern Ordos Basin.Journal of Northeast Petroleum University,2016,40(3):51-60.
[16]ZHANG Zonglin,TIAN Jingchun,LUO Xiangjian,et al.Sedimentary characteristics of flood debris flow and traction current in the lower Shihezi Formation of Permian in the Northern of Ordos Basin.Journal of Earth Sciences and Environment,2014,36(7):21-30.
[17]WANG Hongzhen.Paleogeophic atlas of China.Beijing:China Cartographic Press.1985.
[18]PEI Fang.Multiple stratigraphic division and correlation of the Permo-Carboniferous of Yuzhou of Henan and Taiyuan of Shanxi.Regional Geology of China,1999,18(2):132-147.
[19]CHEN Jinbiao,WU Tieshan.Regional stratigraphic in the North China.Wuhan:China University of Geosciences Press,1997:90-95.
[20]All China Commission of Stratigraphy.Chinese stratigraphic guidelines and instructions for Chinese stratigraphic guidelines.Beijing:Geology Press,2001:55-56.
[21]CHEN Shiyue,LIU Huanjie.Sequence stratigraphic framework and its characteristics of the Carboniferous-Permian in north China.Acta Sedimentologica Sinica,1999,17(1):63-70.
[22]TANG Min’an,SUN Baoling.High-resolution sequence stratigraphic analysis of Lower Shihezi Formation of Daniudi Gasfield in Ordos Basin.Petroleum Exploration and Development,2007,34(1):48-54.
[23]LIU Rui’e,XIAO Hongping,FAN Liyong,et al.A depositional mode of flood-induced braided river delta in Permian of Ordos Basin.Acta Petrolei Sinica,2013,34(S1):120-127.
[24]YU Xinghe,WANG Defa,ZHENG Junmao.Lithofacies association types or sequences and depositional system of Permian sandstones in north China.Acta Sedimentologica Sinica,1992,11(1):27-35.
[25]WANG Defa,ZHENG Junmao,DENG Hongwen.A preliminary analysis of paleogeographic environments in Carboniferous-Permian system in Northern China.Earth Science--Journal of Wuhan College of Geology,1986,11(3):267-272.
[26]CHEN Shiyue,LIU Huanjie.Carboniferous-Permian lithofacies and paleogeography in the eastern part of the North China platform.Regional Geology of China,1997,16(4):379-386.
[27]YANG Hua,LIU Xinshe,YANG Yong.Status and prospects of tight gas exploration and development in the Ordos Basin.Engineering Sciences,2012,14(6):40-48.