鄂尔多斯盆地大17-70井区山1-3单砂体展布特征及三维地质模型研究

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中图分类号：TE122 文献标识码：A 文章编号：2097-5465（2025）03-0054-09

Abstract：Asoneof thedevelopmentlayersintheDal7-7OwellblockoftheDaniudigasfield，theShanllayerhasalowdegree of gasreservoirutilizationlargeremaining potential.Therearealsoproblemssuchasuncleargasreservoirdescription，single sbodydistribution，remaininggasrecognition.Thisstudyanalyzedthesedimentarycharacteristicsof the Shan1 -3 （2 reservoir，preciselydepictedthedistributioncharacteristicsofsinglesbodies，establishedathredimensionalgeological model.The results show that：1） The Shanl -3 submember in the Da17 -70 well area isa delta plain deposit with distributary chanelinterdistributarybaymicrofacies，correspondingtofivetypicalGRcurves；Shan1-3issubdivdedintoShan-- Shan1-3-2 singles bodies.Shan1-3-1s bodiesare generalldevelopedwithanaveragethickness of 3，2m .Theoverall sbodydevelopmentof Shan1 -3-2 ispoor， the average s body thicknessis 1，8m .2）Based on the analysis of individualsbodiessedimentarfacies，athredimensionalgeoogicalmodelisestablishedthecharacteristicsofigh yieldwellreservoirsareanalyzed，ndthefavorableareasofShanl-3throughoptimizationaredivided.Themodelisverifiedby therealdrillng trackofthehorizontalsectionofthenewwell.Themodelhasahighcoincidenceratewiththerealdrillng lithology，which canoptimize the trajectory adjustment of the new well guide the production plan.

Keyword;Dal7-7Owellarea；sedimentaryfacies；sedimentarycharacteristics；singlesbody；three-dimensionalgeological modeling

来稿日期：2024-12-18 DOI：10.13937/j.cnki.hbdzdxxb.2025.03.008作者简介：戴亚威（1995—），男，河南商丘人，硕士、工程师，主要研究领域为油气田开发地质。（剩余6768字）