辽河断陷东部凹陷中段沙河街组砂岩储集体预测
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
本文针对东部凹陷中段砂岩储集体分布规律不清等问题 ,开展了以层序地层学为指导的砂岩储集体预测工作。通过对目标层序地震、钻井及岩心等资料的成因地层分析 ,发现同沉积断裂、古地貌及岩浆活动控制了砂岩储集体的展布。同沉积断裂的活动加大了碎屑岩在断层下降盘沉积的可容纳空间 ,为河流相砂岩储集体的发育提供了场所 ;岩浆活动形成的火山岩堆积体则占据了碎屑岩沉积的可容纳空间 ,导致火山岩堆积体之上仅发育以泥质为主的堤岸、溢岸沉积。在此地貌背景控制下 ,河流相砂岩沿火山岩堆积体侧翼的断槽一带展布。本次研究为砂岩油气藏勘探指明了方向 ,在油气勘探实践中取得了预期效果
It is necessary to do further research work on the prediction of the sandy reservoirs distributed in areas of insufficient core data. Aiming at solving the problem that the sand reservoirs were poorly developed in the target area of Central East Depression within Liaohe Basin, the authors carried out the research based on the sequence stratigraphy for the purpose of predicting the distribution of SQ2 TST sand bodies. The sand bodies in SQ2 TST are governed by paleotopography. The growth of faults and volcanic hills were studied comprehensively according to the data of 3-D seismography, wells and cores. It is shown that the accommodation space was remarkably expanded by the faulting activities, and the channel sand bodies were well developed along the surface of the sequence boundary during the rising cycle of the base level. However, the volcanic hills occupied the accommodation space of channel sediments. Therefore, the overbank flowing sediments were chiefly developed on the highs, while the channel sand bodies were distributed mainly along the lows. On the basis of the above discussions,the distribution of channel sand bodies was discovered, and the drilling engineering designed along the channels has been proved to be successful.
引文
顾家裕.1995.陆相盆地层序地层学格架及模式.石油勘探与开发,22:4~6.
    徐怀大.1997.层序地层学理论用于我国断陷盆地分析中的几个问题.石油天然气地质学,(12):3~6.
    徐怀大.1997.从地震地层学到层序地层学.北京:石油工业出版社.朱筱敏.1998.层序地层学原理及应用.北京:石油工业出版社.
    HenryW ,Posamentier.1998.Modificationsofthesequencestrati graphicmodelwithemphasisonpassivemargins,AAPG ,82:1950~1953.
    GallowayWE .1998.Siliciclasticslopeandbase of slopedepositionalsystems:componentfacis,stratigraphicarchitecture,andclassifi cation.AAPG ,82:569~595.
    GuJiayu.1995.Continentalsequencestratigraphyandmodel.PetroleumExplorationandDevelopment,22:4~6(inChinesewithEnglishabstract).
    MacEachernJA ,PembertonBA .1998.High resolutionSequenceStratigraphyofearlyTransgressivedeposits,VikingFormation,JoffreField,Alberta,Canada.AAPG ,82:729~756.
    MiallAD .1996.Thegeologyoffluvialdeposits:sedimentaryfacies,basinanalysisandpetroleumgeology.Springer,(5):580~582.
    ShanlyKW ,McCabePJ .1994.Perspectivesoncontinentalsequencestratigraphy.AAPG ,78:544~568.
    VanWagonerJC .1995.Sequencestratigraphyandmarinetonon ma rinefaciesarchitectureofforelandbasindeposits.AAPGMemoir,64:137~223.
    XuHuaida.1997.Someproblemsofsequencestratigraphyappliedintheanalysisoffaulted basin.PertroleumandNaturalGasGeology,(12):3~6(inChinesewithEnglishabstract).
    XuHuaida.1997.Seismicsandsequencestratigraphy.Beijing:PetroleumIndustryPublishingPress(inChinesewithEnglishabstract).
    ZhuXiaomin.1998.Principlesofsequencestratigraphyandapplication.Beijing:PetroleumIndustryPublishingPress(inChinesewithEng lishabstract).

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心