三维地震解释技术及其在储层描述中的应用——以松辽盆地杏树岗油田X56区块为例
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
针对大庆长垣油田高含水后期井-震结合储层描述的目标尺度小、精度要求高、井网密等特点,以松辽盆地杏树岗油田X56区块为研究区,在精细地质研究成果的基础上,充分利用三维地震资料,形成了一套大庆长垣油田井-震结合构造解释、断层识别、储层预测配套技术。通过容量维分形技术,识别了断距5 m左右的小断层,解决了井间小断层识别难题;利用井-震结合构造解释成果,搞清了断层的平面组合特征及延伸范围,落实了微幅度构造及其与油气分布关系;采用地震随机反演技术,对葡一组储层砂体厚度进行了平面预测和井间砂体连通性分析,2 m以上砂体预测符合率达到75%以上。在此基础上,进一步修正了仅用井孔资料绘制的沉积微相图,精细刻画了河道砂体的平面展布特征。井-震结合三维地震技术在长垣油田多个区块应用,效果明显。
Well-seismic integrated reservoir characterization of Daqing Changyuan oilfield at late high water cut development stage faces the challenges of small scale of description target,high requirement for predication accuracy and dense well pattern.Taking Block X56 of Xingshugang oilfield in the Songliao Basin as an example,we developed a set of technologies consisting of well-seismic integrated structure interpretation,fault identification and reservoir prediction by utilizing 3D seismic data and fine geologic study results.The capacity-dimension fractal technology is applied to recognize small faults with throw of about 5 m,solving problems of small faults identification between wells.The plane combination characteristics and extensions of faults are defined and the relationship between low amplitude structure and oil-gas distribution is determined by using well-seismic integrated structure interpretation technology.Reservoir sandbody thickness in the 1st member of Putaohua Formation is mapped and the sandbody connectivity between wells is analyzed with the stochastic inversion technology.The coincidence rate of prediction of sandbodies with thicknes above 2 meters is more than 75%.On this basis,sedimentary microfacies map drawn only by borehole data is further revised,and the planar distribution features of channel sandbody are characterized.The well-seismic integrated 3D seismic interpretation technology has been applied in several blocks of Changyuan oilfield and the results are satisfactory.
引文
[1]甘利灯,戴晓峰,张昕,等.高含水油田地震油藏描述关键技术[J].石油勘探与开发,2012,39(3):365-376.Gan Lideng,Dai Xiaofeng,Zhang Xin,et al.Key technologies for theseismic reservoir characterization of high water-cut oilfields[J].Petroleum Exploration and Development,2012,39(3):365-376.
    [2]邓维森,林承焰.葡萄花和敖包塔油田葡Ⅰ组油层低级序断层的地震识别[J].石油物探,2010,49(1):79-84.Deng Weisen,Lin Chengyan.Seismic identification of low-level faultsin PuⅠreservoir of Putaohua and Aobaota oilfields[J].GeophysicalProspecting for Petroleum,2010,49(1):79-84.
    [3]张昕,甘利灯,刘文岭,等.密井网条件下井震联合低级序断层识别方法[J].石油地球物理勘探,2012,47(3):462-468.Zhang Xin,Gan Lideng,Liu Wenling,et al.Joint well-seismic inter-pretation of low-grade faults in dense well pattern block[J].Oil Geo-physical Prospecting,2012,47(3):462-468.
    [4]何光明,高如曾.分形理论在裂缝预测中的尝试[J].石油物探,1993,32(2):1-13.He Guangming,Gao Ruzeng.Attempt to predict the fracture with fractaltheory[J].Geophysical Prospecting for Petroleum,1993,32(2):1-13.
    [5]乐友喜,王才经.计算地震道关联维的G-P方法研究[J].石油地球物理勘探,1996,31(1):14-20.Le Youxi,Wang Caijing.Research on G-P method for computing theassociative dimension of seismic traces[J].Oil Geophysical Prospecting,1996,31(1):14-20.
    [6]朱剑兵,纪友亮,李储华.利用分形维数定量表征断裂发育程度[J].石油学报,2005,26(5):53-56.Zhu Jianbing,Ji Youliang,Li Chuhua.Quantitative characterization ofdevelopment degree of fractures in fault system by fractal dimension[J].Acta Petrolei Sinica,2005,26(5):53-56.
    [7]崔若飞,徐东.利用分形技术和人工神经网络技术检测小断层[J].中国矿业大学学报,1999,28(3):258-261.Cui Ruofei,Xu Dong.Detection of minor faults using both fractal andartificial neural network techniques[J].Journal of China Universityof Mining&Technology,1999,28(3):258-261.
    [8]Mandelbrot B B.Fractal Geometry of Nature[M].New York:W HFreeman and company,1982.
    [9]李传江,葛玉辉,李林山.大庆榆树林油田地震资料反演技术应用评价[J].世界地质,2008,27(3):291-297.Li Chuanjiang,Ge Yuhui,Li Linshan.Evaluation of seismic inversiontechnique in Yushulin oilfield of Daqing[J].Global Geology,2008,27(3):291-297.
    [10]赵斌,刘维永,黄江波,等.地震综合解释技术在渤海A油田开发中的应用[J].石油地质与工程,2010,24(5):80-83.Zhao bin,Liu Weiyong,Huang Jiangbo,et al.The application of geo-physical technology in Bohai A oilfield development[J].PetroleumGeology and Engineering,2010,24(5):80-83.
    [11]安鸿伟,李正文,李仁甫,等.稀疏脉冲波阻抗反演在YX油田开发中的应用[J].石油物探,2002,41(1):56-60.An Hongwei,Li Zhengwen,Li Renpu,et al.Application of sparse im-pulse impedance inversion in YX oil field[J].Geophysical Prospectingfor Petroleum,2002,41(1):56-60.
    [12]王香文,刘红,滕彬彬,等.地质统计学反演技术在薄储层预测中的应用[J].石油与天然气地质,2012,33(5):730-735.Wang Xiangwen,Liu Hong,Teng Binbin,et al.Application of geosta-tistical inversion to thin reservoir prediction[J].Oil&Gas Geology,2012,33(5):730-735.
    [13]易平,林桂康.随机地震反演技术及在文昌13-1油田的应用[J].石油地球物理勘探,2005,40(1):87-91.Yi Ping,Lin Guikang.Seismic stochastic inversion and its applicationin Wenchang 13-1 oilfield[J].Oil Geophysical Prospecting,2005,40(1):87-91.
    [14]慎国强,孟宪军,王玉梅,等.随机地震反演方法及其在埕北35井区的应用[J].石油地球物理勘探,2004,39(1):75-81.Shen Guoqiang,Meng Xianjun,Wang Yumei,et al.Random seismicinversion and its application in Chengbei No.35 well zone[J].OilGeophysical Prospecting,2004,39(1):75-81.
    [15]王健,谢华锋,董洪奎,等.随机地震反演在岩性油气藏储层预测中的应用[J].科学技术与工程,2011,11(12):2640-2643.Wang Jian,Xie Huafeng,Dong Hongkui,et al.An application of seis-mic stochastic invention to lithologlic reservoir prediction[J].ScienceTechnology and Engineering,2011,11(12):2640-2643.
    [16]李占东,赵伟,李阳,等.开发地震反演可行性研究及应用——以大庆长垣北部油田为例[J].石油与天然气地质,2011,32(5):797-806.Li Zhandong,Zhao Wei,Li Yang,et al.Feasibility study and applica-tion of development seismic inversion—a case study from northernChangyuan oilfield of Daqing[J].Oil&Gas Geology,2011,32(5):797-806.
    [17]江青春,王海,李丹,等.地震波形分类技术应用条件及其在葡北地区沉积微相研究中的应用[J].石油与天然气地质,2012,33(1):135-140.Jiang Qingchun,Wang Hai,Li Dan.Application conditions of seismicwaveform classification technique and its use in the study of sedimen-tary microfacies of Pubei area[J].Oil&Gas Geology,2012,33(1):135-140.

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