惠民凹陷营子街地区深层致密砂岩储层含油性预测
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摘要
惠民凹陷营子街地区致密砂岩储层埋深大,岩性、物性横向变化快,油水关系复杂,应用传统的叠后油气检测方法进行含油性识别的精度低,可靠性差。针对研究区致密砂岩储层特征,提出了储层含油性叠前综合预测方法。即根据研究区实际地质情况,优选岩石骨架混合方法,建立合理的岩石物理模型,估算井的横波速度;通过岩石物理分析,筛选出对该区致密砂岩油藏敏感的弹性参数组合(纵横波速度比和纵波阻抗),并确定区分油水层的门槛值;综合利用研究区高精度三维地震资料叠前CIP道集、层位解释数据及井资料等进行叠前弹性阻抗反演,得到敏感弹性参数融合数据体,结合油水层门槛值对研究区致密砂岩储层进行含油性预测。上述方法预测结果与实钻结果吻合率达到87%,预测有利含油面积16km2,后钻评价井验证了预测结果的正确性和可靠性。
The burial depth of tight sandstone reservoir is large in the Yingzijie area of Huiming Sag.Lateral variation of lithology and physical property is sharp and oil-water relation is complicate.Therefore,the oil-bearing detecting based on the ordinary poststack hydrocarbon detection method in this area is of low accuracy and poor reliability.In this paper,we propose a comprehensive prestack method to detect the oil-bearing properties of tight reservoir in this area.According to the actual geological conditions in the study area,we build rational petrophysics model and estimate S-wave velocity of wells by optimized rock matrix hybrid approach.Based on the petrophysics analysis,the elastic parameters that are sensitive to tight sandstone reservoir are selected as the ratio of P-wave velocity to S-wave velocity and the P-wave impedance.The thresholds that is to distinguish oil-water layers is determined.Comprehensive utilization of CIP gathers from 3Dhigh-precion prestack seismic data,horizon interpretation data and well data,prestack elastic impedance inversion is conducted and as a result integrated data volume of elastic parameters sensitive to tight sandstone reservoir is derived.We predict the oil-bearing properties of tight reservoir in the study area by integrating the thresholds of oil and water layer.The matching rate of predition results to the real drilling reaches 87% and potential tight sandstone reservoir can range up to 16km2.The posteriori drilling results prove this prediction result is accurate and effective relatively.
引文
[1]潘元林,张善文,肖焕钦.济阳断陷盆地隐蔽油气藏勘探[M].北京:石油工业出版社,2003:56-66Pan Y L,Zhang S W,Xiao H Q.The subtle trap exploration of Jiyang fault basin[M].Beijing:Petroleum Industry Press,2003:56-66
    [2]刘传虎,赵玉华,王志高.CX地区含油储层地震反射特征及油气预测效果[J].石油物探,1997,36(1):13-20Liu C H,Zhao Y H,Wang Z G.Seismic reflection characteristics and hydrocarbon prediction of oilbearing reservoirs in the CX area[J].Geophysical Prospecting for Petroleum,1997,36(1):13-20
    [3]谢凤兰,李俊珍.吸收系数在WJ构造储层横向预测中的应用[J].石油物探,1997,36(1):77-82Xie F L,Li J Z.The application of the absorption coefficient in the reservoir lateral prediction of the WJ structure[J].Geophysical Prospecting for Petroleum,1997,36(1):77-82
    [4]李国林,韩文功,王兴谋,等.AVO技术在济阳坳陷浅层气勘探中的应用[J].石油物探,1996,35(2):73-80Li G L,Han W G,Wang X M,et al.The application of AVO technique for shallow gas survey in Jiyang Depression[J].Geophysical Prospecting for Petroleum,1996,35(2):73-80
    [5]Connolly P.Elastic impedance[J].The Leading Edge,1999,18(4):438-452
    [6]唐金良,周单,王世星.基于叠前反演的缝洞型碳酸盐岩流体检测及评价技术研究[J].石油物探,2013,52(3):313-322Tang J L,Zhou D,Wang S X.Technology research on fracture-cavity type carbonate fluid detection and evaluation based on pre-stack inversion[J].Geophysical Prospecting for Petroleum,2013,52(3):313-322
    [7]王玉梅,孟宪军,慎国强.叠前地震反演技术在气层预测中的应用[J].油气地球物理,2007,5(2):33-37Wang Y M,Meng X J,Shen G Q.The application of the pre-stack seismic inversion technology in gas reservoir prediction[J].Petroleum Geophysics,2007,5(2):33-37
    [8]马中高,张金强,蔡月晖,等.大牛地气田二叠系下石盒子组致密砂岩储层含气性识别因子研究[J].石油物探,2012,51(4):414-419Ma Z G,Zhang J Q,Cai Y H,et al.Study on gas identification factor of tight sandstone reservoirs in Lower Shihezi formation from Daniudi Gas-field,Ordos Basin[J].Geophysical Prospecting for Petroleum,2012,51(4):414-419
    [9]高云,朱应科,赵华,等.叠前同时反演技术在砂砾岩体有效储层预测中的应用[J].石油物探,2013,52(2):223-228Gao Y,Zhu Y K,Zhao H,et al.Application of prestack simultaneous inversion technique in effective reservoir prediction of sand-gravel body[J].Geophysical Prospecting for Petroleum,2013,52(2):223-228
    [10]韩文功,李红梅,杨云岭,等.济阳坳陷岩心弹性和物性参数的实验室测量及分析[J].石油物探,1997,36(1):21-27Han W G,Li H M,Yang Y L,et al.The laboratorial measurement and analysis for the elastic and physical parameters of drilling cores in Jiyang Depression[J].Geophysical Prospecting for Petroleum,1997,36(1):21-27
    [11]谢月芳,张纪.岩石物理模型在横波速度估算中的应用[J].石油物探,2012,51(1):65-70Xie Y F,Zhang J.Application of rock physical model in S-wave velocity estimation[J].Geophysical Prospecting for Petroleum,2012,51(1):65-70
    [12]张元中,周开金,赵建斌,等.砂泥岩地层横波测井曲线预测方法研究[J].石油物探,2012,51(5):508-513Zhang Y Z,Zhou K J,Zhao J B,et al.Shear-wave logging curve prediction method for shaly sand formation[J].Geophysical Prospecting for Petroleum,2012,51(5):508-513
    [13]李庆忠.岩石的纵、横波速度规律[J].石油地球物理勘探,1992,27(1):1-12Li Q Z.Velocity regularities of P and S-waves in formations[J].Oil Geophysical Prospecting,1992,27(1):1-12
    [14]孙福利,杨长春,麻三怀,等.横波速度预测方法[J].地球物理学进展,2008,23(2):470-474Sun F L,Yang C C,Ma S H,et al.An S-wave velocity predicted method[J].Progress in Geophysics,2008,23(2):470-474
    [15]印兴耀,刘欣欣,曹丹平.基于Biot相洽理论的致密砂岩弹性参数计算方法[J].石油物探,2013,52(5):445-451Yin X Y,Liu X X,Cao D P.Elastic parameters calculation for tight sand reservoir based on Biot consistent theory[J].Geophysical Prospecting for Petroleum,2013,52(5):445-451
    [16]黄伟传,杨长春,范桃园,等.岩石物理分析技术在储层预测中的应用[J].地球物理学进展,2007,22(6):1791-1795Huang W C,Yang C C,Fan T Y,et al.The application of petro-physical analysis in the reservoir prediction[J].Progress in Geophysics,2007,22(6):1791-1795
    [17]管路平.地震叠前反演与直接烃类指示的探讨[J].石油物探,2008,47(3):228-234Guan L P.Pre-stack inversion and direct hydrocarbon indicator[J].Geophysical Prospecting for Petroleum,2008,47(3):228-234
    [18]许升辉,马劲风.波阻抗反演中多井条件下的子波提取方法[J].地球物理学进展,2003,18(4):623-627Xu S H,Ma J F.Wavelet extraction method of wave impedance inverse with multi-well restrictions[J].Progress in Geophysics,2003,18(4):623-627
    [19]马劲风,王学军,谢言光,等.波阻抗反演中低频分量构建的经验与技巧[J].石油物探,2000,39(1):27-34Ma J F,Wang X J,Xie Y G,et al.Experience and skill of constructing low-frequency components in impedance inversion[J].Geophysical Prospecting for Petroleum,2000,39(1):27-34
    [20]王维红,林春华,王建民,等.叠前弹性参数反演方法及其应用[J].石油物探,2009,48(5):483-487Wang W H,Lin C H,Wang J M,et al.Pre-stack elastic parameters inversion and its application[J].Geophysical Prospecting for Petroleum,2009,48(5):483-487
    [21]王小杰,印兴耀,吴国忱.基于S变换的吸收衰减技术在含气储层预测中的应用研究[J].石油物探,2012,51(1):37-42Wang X J,Yin X Y,Wu G C.The application of an S transform based absorption and attenuation technique for prediction of gas-bearing reservoir[J].Geophysical Prospecting for Petroleum,2012,51(1):37-42
    [22]龚幸林,牛刚,白文成,等.叠前弹性反演在Y研究区盐下碳酸盐岩气藏预测中的应用[J].石油物探,2011,50(1):65-68Gong X L,Niu G,Bai W C,et al.Application of prestack elastic inversion for sub-salt gas prediction in Block Y[J].Geophysical Prospecting for Petroleum,2011,50(1):65-68

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