Abstract：Based on Bayesian theory, reservoir model building with multi-data fusion takes advantages of logging, 3D seismic and cross-well seismic data to improve the accuracy of reservoir model building. This approach provides a new way for fine reservoir description in the Chinese eastern mature oilfields. The key algorithm of the new approach is Bayesian-sequential Gaussian simulation, which utilizes small amount of high resolution logging and cross-well seismic data as condition data to realizes seismic attribute constraint. This algorithm takes advantages of logging data high vertical resolution and seismic data high horizontal resolution. We build a porosity model of Block K71 with this method. It is found out that in this model cross-well tendency is well matched with constrained data, and vertical resolution is greatly improved. This illustrates advantages of the approach. Applications show that the proposed approach can effectively enhance reservoir prediction.
Wang Xishuang,Gan Lideng,Yi Weiqi et al. Technical progress of reservoir geophysics. OGP,2006,41(5):606-613.
[2]
李阳.胜利油田油藏综合地球物理研究现状及展望.石油勘探与开发,2004,31(3):10-13.
Li Yang. Prospecting and evaluation on the comprehensive geophysics studies of reservoirs in the Shengli Oilfield. Petroleum Exploration and Development,2004,31(3):10-13.
Liu Wenling,Han Dakuang,Hu Shuiqing et al. Consideration and practice of reservoir geophysics techniques in development of mature oilfields with high water cut. Acta Petrolei Sinica,2009,30(4):550-559.
Liu Wenling. Reservoir geophysics techniques in development of mature oilfields with high water cut:A new research area of geophysical prospecting for petroleum in China. Acta Petrolei Sinica,2010,31(6):959-965.
[7]
时应敏,乔玉雷,王慧.井间地震地质分辨率浅析.油气地质与采收率,2005,12(5):33-35.
Shi Yingmin,Qiao Yulei,Wang Hui. Preliminary analysis on cross-well seismic geologic resolving ability. Oil & Gas Recovery Technology,2005,12(5):33-35.
[8]
钱志,左建军,魏国华等.井间地震在油气勘探中的应用.石油仪器,2010,24(5):25-27.
Qian Zhi,Zuo Jianjun,Wei Guohua et al. The application of the cross-well seismic in the oil field prospect. Petroleum Instruments,2010,24(5):25-27.
[9]
Behrens R A,Tran T T. Incorporating seismic data of intermediate vertical resolution into 3D reservoir models:A new method. SPE,1999,325-333.
Yin Xingyao,He Weisheng,Huang Xuri. Bayesian sequential Gaussian simulation method. Journal of the University of Petroleum(Natural Science Edtion),2005,29(5):28-32.
