河流相储层建模中测井和地震资料整合研究
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摘要
对于储层非均质性非常严重的河流相储层来说,如何更好的利用三维地震资料一直是一个难点,本文探讨了一种综合地震、测井、地质资料的方法,并以大港油田某区块为例建立了基于地质统计和地震反演的定量储层地质模型.首先通过对测井约束地震反演得到的波阻抗数据体分析,提取三维空间变异函数,利用具外部漂移的泛克里金模拟方法建立出砂体的分布模型;然后以此砂体模型为相控制条件,建立储层物性参数模型.经过验证表明,本方法可以避免常规建模方法中存在的物性分布与岩相分布不匹配的现象,从而获得与地质认识一致的结论.
In highly heterogeneous fluvial reservoir modeling,how to integrate 3D seismic data is a key problem.Based mainly on geostatistics and seismic inversion,a new method of integrating seismic,logging and geological data was discussed in the paper.Taking the Dagang oil field for example,the quantitative reservoir geological model was established.Through analyzing acoustic impedance volume obtained from logging constrained seismic inversion,the 3D variogram was obtained,and the distribution model of sand body was established using Universal Kringing simulation method with external drift.Taking this sand body model as facies-controlling conditions,a reservoir property model was proposed.Results indicate that this method can effectively avoid mismatches between reservoir property distribution and lithofacies distribution,which is commonly caused in conventional reservoir modeling methods,and can get reasonable conclusion in consistent with geological knowledge.
In highly heterogeneous fluvial reservoir modeling,how to integrate 3D seismic data is a key problem.Based mainly on geostatistics and seismic inversion,a new method of integrating seismic,logging and geological data was discussed in the paper.Taking the Dagang oil field for example,the quantitative reservoir geological model was established.Through analyzing acoustic impedance volume obtained from logging constrained seismic inversion,the 3D variogram was obtained,and the distribution model of sand body was established using Universal Kringing simulation method with external drift.Taking this sand body model as facies-controlling conditions,a reservoir property model was proposed.Results indicate that this method can effectively avoid mismatches between reservoir property distribution and lithofacies distribution,which is commonly caused in conventional reservoir modeling methods,and can get reasonable conclusion in consistent with geological knowledge.
引文
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[5]王仁铎,胡光道.线性地质统计学[M].北京:地质出版社,1988:68-71.
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[8]董守华,马彦良,周明.煤层厚度与振幅、频率地震属性的正演模拟[J].中国矿业大学学报,2004,33(1):29-32.DONG Shou-hua,MA Yan-liang,ZHOU Ming.For-ward modeling of relationship between coal seamthickness and seismic attributes of amplitude and fre-quency[J].Journal of China University of Mining&Technology,2004,33(1):29-32.
[9]ARAKTINGI U G,BASHORE W M,TRANT TB.Integration of seismic and well log data in reser-voir modeling[C]//Reservoir CharacterizationⅢ.Tulsa:Pennwell Publishing,1993:515-554.
[10]CHAMBERS R L.Geostatistical application for ex-ploration and development:porosity estimation from3-D seismic data calibrated to well data[J].Spe,1993,25655:3-6.
[11]ROLANDO J P.From well data to 3D models:de-termination of the critical path in the process ofcharacterization of reservoirs[J].Spe,1998,49283:1-21.
[12]王家华,张团峰.油气储层随机建模[M].北京:石油工业出版社,2001:38-39.
[13]吴胜和,金振奎,黄沧钿,等.储层建模[M].北京:石油工业出版社,1999:92-96.
[2]崇仁杰,刘静.以地震反演资料为基础的相控储层建模方法在BZ25-1油田的应用[J].中国海上油气:地质,2003,17(5):307-311.CHONG Ren-jie,LIU Jing.Application of a faciescontrolled reservoir modeling method based on seis-mic inversion data in BZ25-1 oil field[J].China Off-shore Oil and Gas:geology,2003,17(5):307-311.
[3]曹宏,齐文同,宋新民,等.储层相对稳定性及其在储层模拟中的应用[J].石油学报,2002,23(3):56-60.CAO Hong,QI Wen-tong,SONG Xin-min,et al.Concept of relative reservoir stability and its applica-tion to reservoir simulation[J].Acta Petrolei Sinca,2002,23(3):56-60.
[4]DEUTSCH C V.Geostatistical reservoir modelingac-counting for precision and scale of seismic data[J].Spe,1996,36497:9-19.
[5]王仁铎,胡光道.线性地质统计学[M].北京:地质出版社,1988:68-71.
[6]DOYEN P M.Porosity from seismic data:a geosta-tistical approach[J].Geophysics,1988,53(10):1263-1275.
[7]DOYEN P M.Seismic porosity mapping in theEkofisk Field using a new form of collocated cokrig-ing[J].Spe,1996,36498:21-30.
[8]董守华,马彦良,周明.煤层厚度与振幅、频率地震属性的正演模拟[J].中国矿业大学学报,2004,33(1):29-32.DONG Shou-hua,MA Yan-liang,ZHOU Ming.For-ward modeling of relationship between coal seamthickness and seismic attributes of amplitude and fre-quency[J].Journal of China University of Mining&Technology,2004,33(1):29-32.
[9]ARAKTINGI U G,BASHORE W M,TRANT TB.Integration of seismic and well log data in reser-voir modeling[C]//Reservoir CharacterizationⅢ.Tulsa:Pennwell Publishing,1993:515-554.
[10]CHAMBERS R L.Geostatistical application for ex-ploration and development:porosity estimation from3-D seismic data calibrated to well data[J].Spe,1993,25655:3-6.
[11]ROLANDO J P.From well data to 3D models:de-termination of the critical path in the process ofcharacterization of reservoirs[J].Spe,1998,49283:1-21.
[12]王家华,张团峰.油气储层随机建模[M].北京:石油工业出版社,2001:38-39.
[13]吴胜和,金振奎,黄沧钿,等.储层建模[M].北京:石油工业出版社,1999:92-96.
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