滨南油田毕家地区沙三下亚段沉积特征及沉积模式
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摘要
根据区域地质、地震、测井及岩心分析资料,对胜利油区滨南油田毕家地区沙三下亚段沉积特征及沉积模式进行研究。结果表明:毕家地区沙三下亚段具有湖泊不断扩张演化特征,为陆相断陷湖盆陡坡扇三角洲沉积,可进一步细分为扇三角洲平原、扇三角洲前缘、前扇三角洲3种亚相,以及辫状水道、辫状水道间、水下分流河道、水下分流河道间、河口坝、席状砂以及前扇三角洲泥、浊积扇8种微相类型;古地形和边界同生断层是毕家地区扇三角洲形成的重要条件。
According to regional geology,seismic,logging and core analysis data,the reservoir sedimentation characteristics and sedimentation model of the lower part of member 3 of Shahejie formation(Es3) of Bijia block in Binnan Oilfield were researched comprehensively.The results show that the area has the sedimentation evolution characteristics of the sedimentation lake enlarged continuously,and the sedimentary facies of interval is fan-delta region in continental fault-trough lake basin.The fan delta could be further separated into three subfacies including fan-delta plain,fan-delta front,former fan delta,and eight microfacies such as braided channel,braided interchannel,submerged distributary channel,submerged distributary interchannel,mouth bar,sand sheet,ante-fan delta mud and turbidite.The old topography and border contemporaneous fault are important elements for fan delta developed in Bijia area.
According to regional geology,seismic,logging and core analysis data,the reservoir sedimentation characteristics and sedimentation model of the lower part of member 3 of Shahejie formation(Es3) of Bijia block in Binnan Oilfield were researched comprehensively.The results show that the area has the sedimentation evolution characteristics of the sedimentation lake enlarged continuously,and the sedimentary facies of interval is fan-delta region in continental fault-trough lake basin.The fan delta could be further separated into three subfacies including fan-delta plain,fan-delta front,former fan delta,and eight microfacies such as braided channel,braided interchannel,submerged distributary channel,submerged distributary interchannel,mouth bar,sand sheet,ante-fan delta mud and turbidite.The old topography and border contemporaneous fault are important elements for fan delta developed in Bijia area.
引文
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[2]伍涛,武法东,陈建渝,等.滨南油田毕家断块扇三角洲储层沉积学特征[J].石油与天然气地质,2002,18(2):145-150.WU Tao,WU Fa-dong,CHEN Jian-yu,et al.Sedimen-tology of fan-deltaic reservoirs in Bijia fault block,BinnanOilfield[J].Oil&Gas Geology,2002,18(2):145-150.
[3]毕义泉.东营凹陷滨县凸起南坡砂砾岩体成因模式与成藏规律[J].石油大学学报:自然科学版,2002,26(4):12-16.BI Yi-quan.Sandbody formation models and pool-formingregulations in the southern slope of Binxian prominence ofDongying sag[J].Journal of the University of Petroleum,China(Edition of Natural Science),2002,26(4):12-16.
[4]武法东,谢凤猛,李湘军,等.利津断裂带复杂砂砾岩扇体的迁移研究[J].石油勘探与开发,2002,29(6):22-25.WU Fa-dong,XIE Feng-meng,LI Xiang-jun,et al.Astudy on the development pattern of complicated glutenitefan bodies in Lijin fault belt[J].Petroleum Explorationand Development,2002,29(6):22-25.
[5]杨剑萍,石德文.东营凹陷北部永921地区渐新世沙三段和沙四段扇三角洲沉积[J].石油大学学报:自然科学版,2000,24(1):10-17.YANG Jian-ping,SHI De-wen.Fan delta deposits ofSha-3 and Sha-4 members at oligocene Shahejie formationat Yong 921 area the north of Dongying depression[J].Journal of the University of Petroleum,China(Edition ofNatural Science),2000,24(1):10-17.
[6]焦养泉,周海民,庄新国,等.扇三角洲沉积体系及其与油气聚集关系[J].沉积学报,1998,16(1):70-75.JIAO Yang-quan,ZHOU Hai-min,ZHUANG Xing-guo,et al.Fan deltaic depositional systems and their relation-ship to oil and gas accumulation[J].Acta Sedimentolog-ica Sinica,1998,16(1):70-75.
[7]吴胜和,熊琦华,龚姚进,等.陡坡型和缓坡型扇三角洲及其油气储层意义[J].石油学报,1994,15(增刊):52-59.WU Sheng-he,XIONG Qi-hua,GONG Yao-jin,et al.Steep and gentle slope-pattern fan deltas and their poten-tial as hydrocarbon reservoir[J].Acta Petrolei Sinica,1994,15(sup):52-59.
[8]刘魁元.渤南洼陷沙三段浊积水道砂岩油藏相控储层预测[J].中国石油大学学报:自然科学版,2008,32(1):51-54.LIU Kui-yuan.Faces-controlling reservoir prediction ofturbidity channel sandstone reservoir of Es in Bonan sub-sag[J].Journal of China University of Petroleum(Editionof Natural Science),2008,32(1):51-54.
[9]徐磊,操应长,王艳忠,等.东营凹陷古近系膏盐岩成因模式及其与油气藏的关系[J].中国石油大学学报:自然科学版,2008,32(3):30-36.XU Lei,CAO Ying-chang,WANG Yan-zhong,et al.Genetic model of salt-gypsum rock of Paleogene in Dongy-ing depression and its relationship with hydrocarbon reser-voir[J].Journal of China University of Petroleum(Edi-tion of Natural Science),2008,32(3):30-36.
[10]国景星,刘媛.济阳坳陷新近系层序地层构型[J].中国石油大学学报:自然科学版,2008,32(1):1-5.GUO Jing-xing,LIU Yuan.Model of sequence stratumof Neogene of Jiyang depression[J].Journal of ChinaUniversity of Petroleum(Edition of Natural Science),2008,32(1):1-5.
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