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ID:37377999
大小:1.54 MB
页数:7页
时间:2019-05-22
《叠前叠后地震多属性反演在牛东潜山油气检测中的应用》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、学兔兔www.xuetutu.com中国石油勘探第19卷第2期CHINAPETROLEUMEXPLORATION2014年3月DOI:10.3969l/j.issn.1672-7703.2014.02.006叠前叠后地震多属性反演在牛东潜山油气检测中的应用秦凤启王亚王孟华冯小英邢福松刘浩强贾敬(中国石油华北油田公司地球物理勘探研究院,河北省任丘市062552)摘要:冀中坳陷霸县凹陷牛东潜山构造带发现和探明的古潜山油气藏为古生界寒武系碳酸盐岩储层,其储集空间以孔洞、裂缝为主,物性横向变化较大。针对潜山及
2、潜山内幕碳酸盐岩储层非均质性较强的难点,开展叠前弹性反演研究,采取叠前弹性阻抗反演技术、AVO属性分析技术;并结合叠后子波分解与重构技术,预测和刻画储层缝洞体系的空间分布规律,划分储层发育有利区带,准确预测裂缝发育区、油气富集区。该区实钻结果表明,牛东潜山构造带碳酸盐岩储层裂缝发育,油气显示良好,证实了碳酸盐岩储层特征预测技术的有效性。关键词:碳酸盐岩;非均质性;叠前弹性反演;AVO属性;子波分解;牛东潜山中图分类号:P631.4文献标识码:AApplicationofPre-stackandPost
3、—stackSeismicMulti—attributeInversionforOilandGasInspectionofNiudongBuriedHillQinFnegqi,WangYa,WangMenghua,FengXiaoying,XingFusong,LiuHaoqiang,JiaJing(GeophysicalExplorationResearchInstituteofPetroChinaHuabeiOilfieMCompany,RengqiuCiHebeiProvince062552)A
4、bstract:TheancientburiedhillhydrocarbonreservoirfoundandproveninNiudongburiedhillstructuralzoneinBaxiansagofJizhongDepressionwasCambriancarbonaterockreservoirofPaleozoicerathorn.Thereservoirspaceismainlycomposedofvugsandfractures,withthephysicalproperty
5、varyinghorizontally.Thestudyofpre·stackelasticinversionwasmadeinthelightofthebottleneckthatbufedhillandbufedhillinnercurtaincarbon~erockreservoirishasastrongheterogeneity.Thepre—stackelasticimpedanceinversiontechnologyandAVOattributeanalysistechnologywe
6、readoptedincombinationwithpost—stackwaveletdecompositionandrestructuretechnologytopredictanddescribethespacedistributionlawofthefractureandvugsystemofthereservoir,dividethefhV0rabledevelopmentzonesofthereservoirandclarifythefracturaldevelopmentzoneandhy
7、drocarbonabundancezone.ThedrillingresultsinthisregionshowthecarbonaterockreservoirofNiudongburiedhillstructuralzoneseesdevelopmentof~actureswithagoodprospectforoilandgas,confirmingefectivenessofthetechnologyforpredictionofcharacteristicsofcarbonaterockr
8、eservoir.Keywords:carbonaterock,heterogeneity,pre·stackelasticinversion,AVOattributes,wavelet,Niudongbufedhill碳酸盐岩储层在中国分布广泛,其油气储量也十性十分复杂,储层分布规律难以把握[1-31。针对实际分可观。碳酸盐岩储层的非均质性极强,其外部形态地质情况开展叠前弹性反演研究,采取叠前弹性阻抗和内部结构极不规则,纵向上和横向上变化较快,有反演技
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