南襄盆地泌阳凹陷深凹区核三段沉积特征及演化
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摘要
通过测井、录井、粒度分析资料,结合区域地质资料、前人研究成果、岩心描述和地震反射资料,认为核三段发育辫状河三角洲、近岸水下扇、滑塌浊积扇及湖泊沉积,并进一步识别出5个亚相及6个微相。其中,近岸水下扇发育于研究区西南部和东南部的控边断层处,辫状河三角洲发育于东北部,滑塌浊积扇发育于辫状河三角洲前端的半深湖-深湖区域。近岸水下扇岩性主要为灰白色中、细砾岩,砾石成分复杂,分选差,磨圆程度低。辫状河三角洲发育平行层理、交错层理及冲刷充填构造,垂向上构成间断正韵律,其岩性为浅灰色砾岩、砾质砂岩、砂岩,中-厚层或块状,自然电位曲线和电阻率曲线呈钟形或箱型。辫状河三角洲前缘砂体失稳,产生滑塌,在深湖区形成滑塌浊积扇,其岩性为细砂岩、粉砂岩、泥质粉砂岩,多呈正韵律,发育块状层理、液化变形层理、波状层理及泥岩撕裂屑、槽模、沟模构造等,电测曲线表现为钟形、箱形、漏斗形等。湖泊沉积主要发育于三角洲前缘和近岸水下扇前方的深凹区。从H38-H31研究区经历了水体由深到浅再略加深的沉积演化。
Based on logging and particle size analyses in combination with regional geological data,results of previous studies,core observation and seismic reflection data,the authors consider that braided river delta, near-shore subaqueous fan,slump turbidite fans and lacustrine sedimentary facies are developed in the He-3 Formation.On such a basis,five subfacies and six microfacies can be identified.The near-shore subaqueous fan is developed in southwest and southeast margin-controlling faults of the study area,braided river delta is developed in the northeast,and slump turbidite fan is developed at the semi-deep lake-deep lake area in front of braided river delta.The lithology of near-shore subaqueous fan is mainly the medium to fine gray conglomerate characterized by multiple composition,poor sorting and poor roundness.Braided river delta consists of medium-thick gray bedded conglomerate,pebbly sandstone,sandstone with parallel bedding,cross bedding and scour-and-fill structure. Vertically,braided river delta shows disconnected positive rhythm.Spontaneous potential and resistivity curves are bell-shaped or box-shaped.Where the sand of braided river delta front is instable,slump would occur and,at last, the slump turbidite fans would form in deep lake.The lithology of slump turbidite fans includes fine-grained sandstone,siltstone and argillaceous siltstone with positive rhythm,massive bedding,liquefied deformation bedding,wave bedding,mudstone rip-up,flute mold,furrow membrane and other structures.Electric curves show bell,box and funnel shapes.Lacustrine sedimentary facies is mainly developed in the furrow area in front of near-shore subaqueous fan and delta front.The water depth of the study area has experienced the evolution from deep to shallow and then a little deeper in H38-H31 area.
Based on logging and particle size analyses in combination with regional geological data,results of previous studies,core observation and seismic reflection data,the authors consider that braided river delta, near-shore subaqueous fan,slump turbidite fans and lacustrine sedimentary facies are developed in the He-3 Formation.On such a basis,five subfacies and six microfacies can be identified.The near-shore subaqueous fan is developed in southwest and southeast margin-controlling faults of the study area,braided river delta is developed in the northeast,and slump turbidite fan is developed at the semi-deep lake-deep lake area in front of braided river delta.The lithology of near-shore subaqueous fan is mainly the medium to fine gray conglomerate characterized by multiple composition,poor sorting and poor roundness.Braided river delta consists of medium-thick gray bedded conglomerate,pebbly sandstone,sandstone with parallel bedding,cross bedding and scour-and-fill structure. Vertically,braided river delta shows disconnected positive rhythm.Spontaneous potential and resistivity curves are bell-shaped or box-shaped.Where the sand of braided river delta front is instable,slump would occur and,at last, the slump turbidite fans would form in deep lake.The lithology of slump turbidite fans includes fine-grained sandstone,siltstone and argillaceous siltstone with positive rhythm,massive bedding,liquefied deformation bedding,wave bedding,mudstone rip-up,flute mold,furrow membrane and other structures.Electric curves show bell,box and funnel shapes.Lacustrine sedimentary facies is mainly developed in the furrow area in front of near-shore subaqueous fan and delta front.The water depth of the study area has experienced the evolution from deep to shallow and then a little deeper in H38-H31 area.
引文
董艳蕾,朱筱敏,胡廷惠,罗家群,刘桂兰,罗琪.2011.泌阳凹陷核三段地震沉积学研究[J].地学前缘,18(2):284-293.
冯增昭.2004.单因素分析多因素综合作图法——定量岩相古地理重建[J].古地理学报,6(1):3-19.
胡受权,陈国能.1999.南襄盆地泌阳断陷下第三系陆相层序地层[J].地球学报,20(2):207-214.
李斌,孟自芳,李相博,卢红选,郑民.2005.泌阳凹陷下第三系构造特征与沉积体系[J].吉林大学学报(地球科学版),35(3):332-339.
李祺,陈振林,田建锋,郭启玲,郭广飞,舒克栋.2007.南襄盆地泌阳凹陷下二门油田核二段沉积微相研究[J].岩性油气藏,19(3):66-72.
刘启亮,罗顺社.2010.泌阳凹陷南部陡坡带核桃园组沉积体系研究[J].油气地球物理,8(3):59-64.
柳磊,汪立今,田继军,吴天伟,马帅.2011.新疆托克逊煤田侏罗系成煤环境及沉积特征分析[J].地球学报,32(5):549-558.
刘正锋,朱景修,刘建锋.2011.泌阳凹陷深凹区核三上亚段浊积扇成因及沉积模式[J].石油天然气学报,33(8):16-20.
罗顺社,门福信,陈晓.2009.泌阳凹陷核三下亚段物源区母岩性质研究[J].石油天然气学报,31(3):62-71.
宋春晖,方小敏,师永民,王新民.2001.青海湖现代三角洲沉积特征及形成控制因素[J].兰州大学学报(自然科学版),37(3):112-120.
孙家振,李兰斌,杨振峰,王寿庆.1995.泌阳凹陷的含油气构造特征与演化历史[J].石油学报,16(4):55-61.
王国鹏,郑浚茂,樊中海,杨道庆,邵先杰.2005.泌阳凹陷安棚鼻状构造的沉积成因及裂缝分布[J].石油学报,26(2):38-41.
王子煜,漆家福,张永华.2004.泌阳凹陷新生代构造特征与形成机制及其与油气成藏的关系[J].地质学报,78(3):332-344.
温志新,王红漫,陈春强,胡咏,李辉.2006.南襄盆地泌阳凹陷南部陡坡带隐蔽油气藏形成与分布[J].石油实验地质,28(2):117-122.
吴李泉,曹代勇.2002.藏北地区中上侏罗统接奴群沉积特征及油气远景[J].地球学报,23(5):447-452.
叶红霞,罗顺社.2010.泌阳凹陷南部陡坡带核三段古地貌研究[J].油气地球物理,8(4):49-51.
袁文芳,陈世悦,曾昌民,鄢继华.2005.柴达木盆地西部地区第三系碎屑岩粒度概率累积曲线特征[J].石油大学学报(自然科学版),29(5):12-18.
张明安,鲜本忠.2003.层序地层学在泌阳凹陷隐蔽油藏预测中的应用[J].石油实验地质,25(4):395-398,402.
朱筱敏,董艳蕾,胡廷慧,罗琪,王敏,杨道庆,罗家群,刘桂兰.2011.精细层序地层格架与地震沉积学研究——以泌阳凹陷核桃园组为例[J].石油与天然气地质,32(4):615-624.
朱筱敏,康安,王贵文,谢庆宾,胡庆喜.1998.三塘湖盆地侏罗系辫状河三角洲沉积特征[J].石油大学学报(自然科学版),22(1):14-17.
DONG Yan-lei,ZHU Xiao-min,HU Ting-hui,LUO Jia-qun,LIU Gui-lan,LUO Qi.2011.Research on seismic sedimentology of He-3Formation in Biyang Sag[J].Earth Science Frontiers,18(2):284-293(in Chinese with English abstract).
FENG Zeng-zhao.2004.Single factor analysis and multifactor comprehensive mapping method—reconstruction of quantita-tive lithofacies palaeogeography[J].Journal of Palaeogeogra-phy,6(1):3-19(in Chinese with English abstract).
HU Shou-quan,CHEN Guo-neng.1999.Terrigenous Sequence Analysis on Early Tertiary in Biyang Fault-depression of Nanxiang Basin[J].Acta Geoscientica Sinica,20(2):207-214(in Chinese with English abstract).
LI Bin,MENG Zi-fang,LI Xiang-bo,LU Hong-xuan,ZHENG Min.2005.The Structural Features and Depositional Systems of the Early Tertiary in the Biyang Depression[J].Journal of Jiling University(Earth Science Edition),35(3):332-339(in Chinese with English abstract).
LI Qi,CHEN Zhen-lin,TIAN Jian-feng,GUO Qi-ling,GUO Guang-fei,SHU Ke-dong.2007.Sedimentary microfacies of the second member of Hetaoyuan Formation in Xia’ermen Oilfield,Biyang Sag,Nanxiang Basin[J].Lithologic Reser-voirs,19(3):66-72(in Chinese with English abstract).
LIU Lei,WANG Li-jin,TIAN Ji-jun,WU Tian-wei,MA Shuai.2011.Sedimentary Characteristics and Coal-accumulation Pattern of the Xishanyao Formation in the Toksun Coalfield of Xinjiang[J].Acta Geoscientica Sinica,32(5):549-558(in Chi-nese with English abstract).
LIU Qi-liang,LUO Shun-she.2010.The research of sedimentary system in the Hetaoyuan Formation of Paleogene in Biyang Depression[J].Petroleum Geophysics,8(3):59-64(in Chinese with English abstract).
LIU Zheng-feng,ZHU Jing-xiu,LIU Jian-feng.2011.Genesis of Turbidite Fan and Depositional Model in the Upper Member of Eh3of Deep Area of Biyang Depression[J].Journal of Oil and Gas Technology,33(8):16-20(in Chinese with English ab-stract).
LUO Shun-she,MEN Fu-xin,CHEN Xiao.2009.The Quality of Parent Rocks of Lower Eh3Formation in Source Area of Bi-yang Depression[J].Journal of Oil and Gas Technology,31(3):62-71(in Chinese with English abstract).
SONG Chun-hui,FANG Xiao-min,SHI Yong-min,WANG Xin-min.2001.Sedimentary characteristics of modern lacustrine deltas in Qinghai Lake and their controlling factors[J].Journal of Lanzhou University(Natural Sciences),37(3):112-120(in Chinese with English abstract).
SUN Jia-zhen,LI Lan-bin,YANG Zhen-feng,WANG Shou-qing.1995.The character and evolution history of hydrocarbon bearing structure in Miyang Depression[J].Acta Petrolei Sinica,16(4):55-61(in Chinese with English abstract).
WANG Guo-peng,ZHENG Jun-mao,FAN Zhong-hai,YANG Dao-qing,SHAO Xian-jie.2005.Depositional genesis of An-peng structural nose and fractures distributed in Anpeng deep zones[J].Acta Petrolei Sinica,26(2):38-41(in Chinese with English abstract).
WANG Zi-yu,QI Jia-fu,ZHANG Yong-hua.2004.Cenozoic Structural Characteristics and Mechanism and Their Relation-ship with Oil and Gas Reservoir in the Biyang Depression[J].Acta Geologica Sinica,78(3):332-344(in Chinese with Eng-lish abstract).
WEN Zhi-xin,WANG Hong-man,CHEN Chun-qiang,HU Yong,LI Hui.2006.Formation and distribution of subtle reservoirs in the southern steep slope zone in the Biyang Sag of the Nan-xiang Basin[J].Petroleum Geology&Experiment,28(2):117-122(in Chinese with English abstract).
WU Li-quan,CAO Dai-yong.2002.Sedimentary Features and Petroleum Geological Significance of the Jienu Group in Northern Tibet[J].Acta Geoscientica Sinica,23(5):447-452(in Chinese with English abstract).
YE Hong-xia,LUO Shun-she.2010.The research on Eh3Member palaeogeomorphology of the southern actic region in Miyang Depression[J].Petroleum Geophysics,8(4):49-51(in Chinese with English abstract).
YUAN Wen-fang,CHEN Shi-yue,ZENG Chang-min,YAN Ji-hua.2005.Probability cumulative grain size curves in terrigenous of the Tertiary in west Qaidam Basin[J].Journal of the Uni-versity of Petroleum,China,29(5):12-18(in Chinese with English abstract).
ZHANG Ming-an,XIAN Ben-zhong.2003.Application of se-quence stratigraphy to the prediction of subtle reservoirs in the Biyang depression[J].Petroleum Geology&Experiment,25(4):395-398,402(in Chinese with English abstract).
ZHU Xiao-min,DONG Yan-lei,HU Ting-hui,LUO Qi,WANG Min,YANG Dao-qing,LUO Jia-qun,LIU Gui-lan.2011.Seismic sedimentology study of fine sequence stratigraphic framework:a case study of the Hetaoyuan Formation in the Biyang Sag[J].Oil&Gas Geology,32(4):615-624(in Chinese with English abstract).
ZHU Xiao-min,KANG An,WANG Gui-wen,XIE Qing-bin,HU Qing-xi.1998.Sedimentary characteristics of Jurassic braid delta in Santanghu Basin[J].Journal of the University of Pe-troleum,China,22(1):14-17(in Chinese with English abstract).
冯增昭.2004.单因素分析多因素综合作图法——定量岩相古地理重建[J].古地理学报,6(1):3-19.
胡受权,陈国能.1999.南襄盆地泌阳断陷下第三系陆相层序地层[J].地球学报,20(2):207-214.
李斌,孟自芳,李相博,卢红选,郑民.2005.泌阳凹陷下第三系构造特征与沉积体系[J].吉林大学学报(地球科学版),35(3):332-339.
李祺,陈振林,田建锋,郭启玲,郭广飞,舒克栋.2007.南襄盆地泌阳凹陷下二门油田核二段沉积微相研究[J].岩性油气藏,19(3):66-72.
刘启亮,罗顺社.2010.泌阳凹陷南部陡坡带核桃园组沉积体系研究[J].油气地球物理,8(3):59-64.
柳磊,汪立今,田继军,吴天伟,马帅.2011.新疆托克逊煤田侏罗系成煤环境及沉积特征分析[J].地球学报,32(5):549-558.
刘正锋,朱景修,刘建锋.2011.泌阳凹陷深凹区核三上亚段浊积扇成因及沉积模式[J].石油天然气学报,33(8):16-20.
罗顺社,门福信,陈晓.2009.泌阳凹陷核三下亚段物源区母岩性质研究[J].石油天然气学报,31(3):62-71.
宋春晖,方小敏,师永民,王新民.2001.青海湖现代三角洲沉积特征及形成控制因素[J].兰州大学学报(自然科学版),37(3):112-120.
孙家振,李兰斌,杨振峰,王寿庆.1995.泌阳凹陷的含油气构造特征与演化历史[J].石油学报,16(4):55-61.
王国鹏,郑浚茂,樊中海,杨道庆,邵先杰.2005.泌阳凹陷安棚鼻状构造的沉积成因及裂缝分布[J].石油学报,26(2):38-41.
王子煜,漆家福,张永华.2004.泌阳凹陷新生代构造特征与形成机制及其与油气成藏的关系[J].地质学报,78(3):332-344.
温志新,王红漫,陈春强,胡咏,李辉.2006.南襄盆地泌阳凹陷南部陡坡带隐蔽油气藏形成与分布[J].石油实验地质,28(2):117-122.
吴李泉,曹代勇.2002.藏北地区中上侏罗统接奴群沉积特征及油气远景[J].地球学报,23(5):447-452.
叶红霞,罗顺社.2010.泌阳凹陷南部陡坡带核三段古地貌研究[J].油气地球物理,8(4):49-51.
袁文芳,陈世悦,曾昌民,鄢继华.2005.柴达木盆地西部地区第三系碎屑岩粒度概率累积曲线特征[J].石油大学学报(自然科学版),29(5):12-18.
张明安,鲜本忠.2003.层序地层学在泌阳凹陷隐蔽油藏预测中的应用[J].石油实验地质,25(4):395-398,402.
朱筱敏,董艳蕾,胡廷慧,罗琪,王敏,杨道庆,罗家群,刘桂兰.2011.精细层序地层格架与地震沉积学研究——以泌阳凹陷核桃园组为例[J].石油与天然气地质,32(4):615-624.
朱筱敏,康安,王贵文,谢庆宾,胡庆喜.1998.三塘湖盆地侏罗系辫状河三角洲沉积特征[J].石油大学学报(自然科学版),22(1):14-17.
DONG Yan-lei,ZHU Xiao-min,HU Ting-hui,LUO Jia-qun,LIU Gui-lan,LUO Qi.2011.Research on seismic sedimentology of He-3Formation in Biyang Sag[J].Earth Science Frontiers,18(2):284-293(in Chinese with English abstract).
FENG Zeng-zhao.2004.Single factor analysis and multifactor comprehensive mapping method—reconstruction of quantita-tive lithofacies palaeogeography[J].Journal of Palaeogeogra-phy,6(1):3-19(in Chinese with English abstract).
HU Shou-quan,CHEN Guo-neng.1999.Terrigenous Sequence Analysis on Early Tertiary in Biyang Fault-depression of Nanxiang Basin[J].Acta Geoscientica Sinica,20(2):207-214(in Chinese with English abstract).
LI Bin,MENG Zi-fang,LI Xiang-bo,LU Hong-xuan,ZHENG Min.2005.The Structural Features and Depositional Systems of the Early Tertiary in the Biyang Depression[J].Journal of Jiling University(Earth Science Edition),35(3):332-339(in Chinese with English abstract).
LI Qi,CHEN Zhen-lin,TIAN Jian-feng,GUO Qi-ling,GUO Guang-fei,SHU Ke-dong.2007.Sedimentary microfacies of the second member of Hetaoyuan Formation in Xia’ermen Oilfield,Biyang Sag,Nanxiang Basin[J].Lithologic Reser-voirs,19(3):66-72(in Chinese with English abstract).
LIU Lei,WANG Li-jin,TIAN Ji-jun,WU Tian-wei,MA Shuai.2011.Sedimentary Characteristics and Coal-accumulation Pattern of the Xishanyao Formation in the Toksun Coalfield of Xinjiang[J].Acta Geoscientica Sinica,32(5):549-558(in Chi-nese with English abstract).
LIU Qi-liang,LUO Shun-she.2010.The research of sedimentary system in the Hetaoyuan Formation of Paleogene in Biyang Depression[J].Petroleum Geophysics,8(3):59-64(in Chinese with English abstract).
LIU Zheng-feng,ZHU Jing-xiu,LIU Jian-feng.2011.Genesis of Turbidite Fan and Depositional Model in the Upper Member of Eh3of Deep Area of Biyang Depression[J].Journal of Oil and Gas Technology,33(8):16-20(in Chinese with English ab-stract).
LUO Shun-she,MEN Fu-xin,CHEN Xiao.2009.The Quality of Parent Rocks of Lower Eh3Formation in Source Area of Bi-yang Depression[J].Journal of Oil and Gas Technology,31(3):62-71(in Chinese with English abstract).
SONG Chun-hui,FANG Xiao-min,SHI Yong-min,WANG Xin-min.2001.Sedimentary characteristics of modern lacustrine deltas in Qinghai Lake and their controlling factors[J].Journal of Lanzhou University(Natural Sciences),37(3):112-120(in Chinese with English abstract).
SUN Jia-zhen,LI Lan-bin,YANG Zhen-feng,WANG Shou-qing.1995.The character and evolution history of hydrocarbon bearing structure in Miyang Depression[J].Acta Petrolei Sinica,16(4):55-61(in Chinese with English abstract).
WANG Guo-peng,ZHENG Jun-mao,FAN Zhong-hai,YANG Dao-qing,SHAO Xian-jie.2005.Depositional genesis of An-peng structural nose and fractures distributed in Anpeng deep zones[J].Acta Petrolei Sinica,26(2):38-41(in Chinese with English abstract).
WANG Zi-yu,QI Jia-fu,ZHANG Yong-hua.2004.Cenozoic Structural Characteristics and Mechanism and Their Relation-ship with Oil and Gas Reservoir in the Biyang Depression[J].Acta Geologica Sinica,78(3):332-344(in Chinese with Eng-lish abstract).
WEN Zhi-xin,WANG Hong-man,CHEN Chun-qiang,HU Yong,LI Hui.2006.Formation and distribution of subtle reservoirs in the southern steep slope zone in the Biyang Sag of the Nan-xiang Basin[J].Petroleum Geology&Experiment,28(2):117-122(in Chinese with English abstract).
WU Li-quan,CAO Dai-yong.2002.Sedimentary Features and Petroleum Geological Significance of the Jienu Group in Northern Tibet[J].Acta Geoscientica Sinica,23(5):447-452(in Chinese with English abstract).
YE Hong-xia,LUO Shun-she.2010.The research on Eh3Member palaeogeomorphology of the southern actic region in Miyang Depression[J].Petroleum Geophysics,8(4):49-51(in Chinese with English abstract).
YUAN Wen-fang,CHEN Shi-yue,ZENG Chang-min,YAN Ji-hua.2005.Probability cumulative grain size curves in terrigenous of the Tertiary in west Qaidam Basin[J].Journal of the Uni-versity of Petroleum,China,29(5):12-18(in Chinese with English abstract).
ZHANG Ming-an,XIAN Ben-zhong.2003.Application of se-quence stratigraphy to the prediction of subtle reservoirs in the Biyang depression[J].Petroleum Geology&Experiment,25(4):395-398,402(in Chinese with English abstract).
ZHU Xiao-min,DONG Yan-lei,HU Ting-hui,LUO Qi,WANG Min,YANG Dao-qing,LUO Jia-qun,LIU Gui-lan.2011.Seismic sedimentology study of fine sequence stratigraphic framework:a case study of the Hetaoyuan Formation in the Biyang Sag[J].Oil&Gas Geology,32(4):615-624(in Chinese with English abstract).
ZHU Xiao-min,KANG An,WANG Gui-wen,XIE Qing-bin,HU Qing-xi.1998.Sedimentary characteristics of Jurassic braid delta in Santanghu Basin[J].Journal of the University of Pe-troleum,China,22(1):14-17(in Chinese with English abstract).
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