英买力地区寒武-奥陶系白云岩储集层勘探潜力
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摘要
通过对岩心薄片观察及多参数实验分析,认为塔里木盆地英买力地区丘里塔格组和蓬莱坝组白云岩的形成属于埋藏成因,岩性以细-中晶白云岩及颗粒白云岩为主,其他为泥粉晶白云岩和角砾白云岩,地球化学指标独特。结合古构造及成岩-孔隙演化史分析,埋藏白云岩化和埋藏岩溶作用是英买力地区丘里塔格组和蓬莱坝组白云岩储集层发育的主要成因机理。英买1-2三维地震工区油源充足,储盖层和输导条件好,气藏勘探潜力巨大。
Based on the core and thin section observation and multiple parameters experiments,it is suggested that the dolomites of Qiulitage and Penglaiba formations in Yingmaili area in Tarim basin belong to buried genesis,and the lithology is dominated by fine-medium crystalline dolomite and grain dolomite,others are dolomicrite,crystal powder dolomite and breccia dolomite,with unique geochemistry index.Combining with analysis of the paleostructure and diagenetic-pore evolution,the buried dolomitization and buried karstification are the main causes of development of dolomite reservoirs of Qiulitage and Penglaiba formations in Yingmaili area.It is concluded that Yingmai1-2 3D seismic work area is sufficient in oil source,preferable in reservoir and cap rocks and good in fluid conducting conditions,therefore the potential for gas exploration will be great.
Based on the core and thin section observation and multiple parameters experiments,it is suggested that the dolomites of Qiulitage and Penglaiba formations in Yingmaili area in Tarim basin belong to buried genesis,and the lithology is dominated by fine-medium crystalline dolomite and grain dolomite,others are dolomicrite,crystal powder dolomite and breccia dolomite,with unique geochemistry index.Combining with analysis of the paleostructure and diagenetic-pore evolution,the buried dolomitization and buried karstification are the main causes of development of dolomite reservoirs of Qiulitage and Penglaiba formations in Yingmaili area.It is concluded that Yingmai1-2 3D seismic work area is sufficient in oil source,preferable in reservoir and cap rocks and good in fluid conducting conditions,therefore the potential for gas exploration will be great.
引文
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[10]金英爱,桑洪,李毓丰,等.塔东地区英东2井钻探成果分析及其意义[J].石油天然气学报,2006,28(1):34-36.
[11]肖中尧,卢玉红,吴懿.塔里木东部满东1井志留系天然气成因与成藏期初步分析[J].地质科学,2005,40(2):362-273.
[12]张水昌,赵文智,王飞宇,等.塔里木盆地东部地区古生界原油裂解气成藏历史分析——以英南2气藏为例[J].天然气地球科学,2004,15(5):441-451.
[13]Kirkland D W,Evans R.Source rock potential of evaporitic environment[J].AAPG Bulletin,1980,65(2):139-148.
[2]张学丰,胡文,张军涛,等.塔里木盆地下奥陶统白云石化流体来源的地球化学分析[J].地学前缘,2008,15(2):80-89.
[3]何莹,鲍志东,沈安江,等.塔里木盆地牙哈-英买力地区寒武系-下奥陶统白云岩形成机理[J].沉积学报,2006,24(6):806-818.
[4]陈永权,周新源,杨文静.塔里木盆地寒武系白云岩的主要成因及其储层评价[J].海相油气地质,2009,14(4):10-17.
[5]沈昭国,陈永武,郭建华.塔里木盆地下古生界白云岩化成因机理及模式探讨[J].新疆石油地质,1995,16(4):319-324.
[6]叶德胜.塔里木盆地北部震旦系至奥陶系白云岩的岩石学及地球化学特征[J].地球化学,1993,22(1):1-8.
[7]沈安江,郑剑锋,潘文庆,等.塔里木盆地下古生界白云岩储层类型及特征[J].海相油气地质,2009,14(4):1-9.
[8]邵龙义,何宏,彭苏萍,等.塔里木盆地巴楚隆起寒武系及奥陶系白云岩类型及形成机理[J].古地理学报,2002,4(2):19-27.
[9]刘永福,殷军,孙雄伟,等.塔里木盆地东部寒武系沉积特征及优质白云岩储层成因[J].天然气地质科学,2008,19(1):126-132.
[10]金英爱,桑洪,李毓丰,等.塔东地区英东2井钻探成果分析及其意义[J].石油天然气学报,2006,28(1):34-36.
[11]肖中尧,卢玉红,吴懿.塔里木东部满东1井志留系天然气成因与成藏期初步分析[J].地质科学,2005,40(2):362-273.
[12]张水昌,赵文智,王飞宇,等.塔里木盆地东部地区古生界原油裂解气成藏历史分析——以英南2气藏为例[J].天然气地球科学,2004,15(5):441-451.
[13]Kirkland D W,Evans R.Source rock potential of evaporitic environment[J].AAPG Bulletin,1980,65(2):139-148.
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