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Uncertainty and Sensitivity Analysis of OIIP Estimation Based on Geological Model

Received: 3 November 2021    Accepted: 23 November 2021    Published: 24 November 2021
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Abstract

Due to the limitations of understanding of geological parameters of oil and gas reservoirs, there is an uncertainty in the results of OOIP calculation. Study the oilfield OOIP distribution probability distribution and the sensitivity of relevant key parameters are quite meaningful to make development plan. In this paper, in the process of volumetric calculation based on the oilfield geological model, according to the actual geological conditions of the oilfield, the geological parameters with uncertainty are selected as variables for the uncertainty analysis, the variable types and distribution parameters are reasonably defined. The Monte Carlo sampling method with inplantation of Latin Hypercube principle principle obtains the probability distribution of the geological reserves of the oil field, and evaluates the sensitivity of the various variables to the OOIP. The results provide the recommended P50 geological reserves. This paper shows that analyzing the key influencing parameters of OOIP calculation and setting the variables reasonably, the Monte Carlo-Latin Hypercube sampling method can provide a representative probability distribution with limited sampling count, and can effectively evaluate OOIP uncertainty. Thus, give the recommended OOIP and relivant geological models for numerical simulation research.

Published in Science Discovery (Volume 9, Issue 6)
DOI 10.11648/j.sd.20210906.26
Page(s) 371-374
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Geological model, OOIP calculation, Uncertainty analysis, Sensitivity analysis, Monte-Carlo sampling

References
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[11] 高济稷,白国平,秦养珍等.蒙特卡洛模拟法在也门马里卜夏布瓦盆地中的应用[J].石油实验地质,2010,32(3):305-306。
[12] 罗文生,孙立春,郑洪印等.蒙特卡罗法在海上某油田储量评价中的应用[J].岩性油气藏,2014,2(1):105-110。
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  • APA Style

    Zeng Xing, Song Heng, He Congge, Bo Bing, Zhao Liangdong, et al. (2021). Uncertainty and Sensitivity Analysis of OIIP Estimation Based on Geological Model. Science Discovery, 9(6), 371-374. https://doi.org/10.11648/j.sd.20210906.26

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    ACS Style

    Zeng Xing; Song Heng; He Congge; Bo Bing; Zhao Liangdong, et al. Uncertainty and Sensitivity Analysis of OIIP Estimation Based on Geological Model. Sci. Discov. 2021, 9(6), 371-374. doi: 10.11648/j.sd.20210906.26

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    AMA Style

    Zeng Xing, Song Heng, He Congge, Bo Bing, Zhao Liangdong, et al. Uncertainty and Sensitivity Analysis of OIIP Estimation Based on Geological Model. Sci Discov. 2021;9(6):371-374. doi: 10.11648/j.sd.20210906.26

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  • @article{10.11648/j.sd.20210906.26,
      author = {Zeng Xing and Song Heng and He Congge and Bo Bing and Zhao Liangdong and Liu Yunyang and Cai Rui},
      title = {Uncertainty and Sensitivity Analysis of OIIP Estimation Based on Geological Model},
      journal = {Science Discovery},
      volume = {9},
      number = {6},
      pages = {371-374},
      doi = {10.11648/j.sd.20210906.26},
      url = {https://doi.org/10.11648/j.sd.20210906.26},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20210906.26},
      abstract = {Due to the limitations of understanding of geological parameters of oil and gas reservoirs, there is an uncertainty in the results of OOIP calculation. Study the oilfield OOIP distribution probability distribution and the sensitivity of relevant key parameters are quite meaningful to make development plan. In this paper, in the process of volumetric calculation based on the oilfield geological model, according to the actual geological conditions of the oilfield, the geological parameters with uncertainty are selected as variables for the uncertainty analysis, the variable types and distribution parameters are reasonably defined. The Monte Carlo sampling method with inplantation of Latin Hypercube principle principle obtains the probability distribution of the geological reserves of the oil field, and evaluates the sensitivity of the various variables to the OOIP. The results provide the recommended P50 geological reserves. This paper shows that analyzing the key influencing parameters of OOIP calculation and setting the variables reasonably, the Monte Carlo-Latin Hypercube sampling method can provide a representative probability distribution with limited sampling count, and can effectively evaluate OOIP uncertainty. Thus, give the recommended OOIP and relivant geological models for numerical simulation research.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Uncertainty and Sensitivity Analysis of OIIP Estimation Based on Geological Model
    AU  - Zeng Xing
    AU  - Song Heng
    AU  - He Congge
    AU  - Bo Bing
    AU  - Zhao Liangdong
    AU  - Liu Yunyang
    AU  - Cai Rui
    Y1  - 2021/11/24
    PY  - 2021
    N1  - https://doi.org/10.11648/j.sd.20210906.26
    DO  - 10.11648/j.sd.20210906.26
    T2  - Science Discovery
    JF  - Science Discovery
    JO  - Science Discovery
    SP  - 371
    EP  - 374
    PB  - Science Publishing Group
    SN  - 2331-0650
    UR  - https://doi.org/10.11648/j.sd.20210906.26
    AB  - Due to the limitations of understanding of geological parameters of oil and gas reservoirs, there is an uncertainty in the results of OOIP calculation. Study the oilfield OOIP distribution probability distribution and the sensitivity of relevant key parameters are quite meaningful to make development plan. In this paper, in the process of volumetric calculation based on the oilfield geological model, according to the actual geological conditions of the oilfield, the geological parameters with uncertainty are selected as variables for the uncertainty analysis, the variable types and distribution parameters are reasonably defined. The Monte Carlo sampling method with inplantation of Latin Hypercube principle principle obtains the probability distribution of the geological reserves of the oil field, and evaluates the sensitivity of the various variables to the OOIP. The results provide the recommended P50 geological reserves. This paper shows that analyzing the key influencing parameters of OOIP calculation and setting the variables reasonably, the Monte Carlo-Latin Hypercube sampling method can provide a representative probability distribution with limited sampling count, and can effectively evaluate OOIP uncertainty. Thus, give the recommended OOIP and relivant geological models for numerical simulation research.
    VL  - 9
    IS  - 6
    ER  - 

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Author Information
  • Research Institute of Petroleum Exploration & Development, Beijing, China

  • Research Institute of Petroleum Exploration & Development, Beijing, China

  • Research Institute of Petroleum Exploration & Development, Beijing, China

  • Research Institute of Petroleum Exploration & Development, Beijing, China

  • Research Institute of Petroleum Exploration & Development, Beijing, China

  • Research Institute of Petroleum Exploration & Development, Beijing, China

  • Research Institute of Petroleum Exploration & Development, Beijing, China

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