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Analysis on Causes of Water Production from Horizontal Wells in the Early Stage of Development in Offshore X Block

Received: May 31, 2022    Accepted:     Published: Jun. 01, 2022
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Abstract

The offshore x block is a new exploration and development block, which is belongs to Shahejie Formation.In order to improve the development efficiency, batch drilling is applied. The horizontal well gravel packing + electric pump lifting completion process is adopted for unified completion. After the new wells are put into operation in batches, the problem of rapid rise of water ratio in varying degrees occurs in a short time. The production time, oil production and water cut of 8 oil wells in block X are counted. Draw the rising curve of water ratio. The dimensionless cumulative oil production is used to normalize the production data. Combined with geological data and production data, the internal and external factors affecting the rise of water ration of horizontal wells in block X are analyzed. It is considered that reservoir heterogeneity, edge and bottom water, toe following effect of horizontal well, length of horizontal well, water avoidance height, production system are the main reasons affecting the rise of water ratio of horizontal well in the initial stage of block x. At the same time, the situation of block x is summarized and suggestions are made in order to provide reference for the development scheme of similar blocks.

DOI 10.11648/j.sd.20221003.18
Published in Science Discovery ( Volume 10, Issue 3, June 2022 )
Page(s) 132-137
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), 2024. Published by Science Publishing Group

Keywords

X Block, Water Ratio, Outflow Analysis, Dimensionless Oil Recovery

References
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  • APA Style

    Du Weigang, Liu Xiaoqiang, Zhang Mi, Qian Xurui, Guan Liyong. (2022). Analysis on Causes of Water Production from Horizontal Wells in the Early Stage of Development in Offshore X Block. Science Discovery, 10(3), 132-137. https://doi.org/10.11648/j.sd.20221003.18

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    ACS Style

    Du Weigang; Liu Xiaoqiang; Zhang Mi; Qian Xurui; Guan Liyong. Analysis on Causes of Water Production from Horizontal Wells in the Early Stage of Development in Offshore X Block. Sci. Discov. 2022, 10(3), 132-137. doi: 10.11648/j.sd.20221003.18

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    AMA Style

    Du Weigang, Liu Xiaoqiang, Zhang Mi, Qian Xurui, Guan Liyong. Analysis on Causes of Water Production from Horizontal Wells in the Early Stage of Development in Offshore X Block. Sci Discov. 2022;10(3):132-137. doi: 10.11648/j.sd.20221003.18

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  • @article{10.11648/j.sd.20221003.18,
      author = {Du Weigang and Liu Xiaoqiang and Zhang Mi and Qian Xurui and Guan Liyong},
      title = {Analysis on Causes of Water Production from Horizontal Wells in the Early Stage of Development in Offshore X Block},
      journal = {Science Discovery},
      volume = {10},
      number = {3},
      pages = {132-137},
      doi = {10.11648/j.sd.20221003.18},
      url = {https://doi.org/10.11648/j.sd.20221003.18},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.sd.20221003.18},
      abstract = {The offshore x block is a new exploration and development block, which is belongs to Shahejie Formation.In order to improve the development efficiency, batch drilling is applied. The horizontal well gravel packing + electric pump lifting completion process is adopted for unified completion. After the new wells are put into operation in batches, the problem of rapid rise of water ratio in varying degrees occurs in a short time. The production time, oil production and water cut of 8 oil wells in block X are counted. Draw the rising curve of water ratio. The dimensionless cumulative oil production is used to normalize the production data. Combined with geological data and production data, the internal and external factors affecting the rise of water ration of horizontal wells in block X are analyzed. It is considered that reservoir heterogeneity, edge and bottom water, toe following effect of horizontal well, length of horizontal well, water avoidance height, production system are the main reasons affecting the rise of water ratio of horizontal well in the initial stage of block x. At the same time, the situation of block x is summarized and suggestions are made in order to provide reference for the development scheme of similar blocks.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Analysis on Causes of Water Production from Horizontal Wells in the Early Stage of Development in Offshore X Block
    AU  - Du Weigang
    AU  - Liu Xiaoqiang
    AU  - Zhang Mi
    AU  - Qian Xurui
    AU  - Guan Liyong
    Y1  - 2022/06/01
    PY  - 2022
    N1  - https://doi.org/10.11648/j.sd.20221003.18
    DO  - 10.11648/j.sd.20221003.18
    T2  - Science Discovery
    JF  - Science Discovery
    JO  - Science Discovery
    SP  - 132
    EP  - 137
    PB  - Science Publishing Group
    SN  - 2331-0650
    UR  - https://doi.org/10.11648/j.sd.20221003.18
    AB  - The offshore x block is a new exploration and development block, which is belongs to Shahejie Formation.In order to improve the development efficiency, batch drilling is applied. The horizontal well gravel packing + electric pump lifting completion process is adopted for unified completion. After the new wells are put into operation in batches, the problem of rapid rise of water ratio in varying degrees occurs in a short time. The production time, oil production and water cut of 8 oil wells in block X are counted. Draw the rising curve of water ratio. The dimensionless cumulative oil production is used to normalize the production data. Combined with geological data and production data, the internal and external factors affecting the rise of water ration of horizontal wells in block X are analyzed. It is considered that reservoir heterogeneity, edge and bottom water, toe following effect of horizontal well, length of horizontal well, water avoidance height, production system are the main reasons affecting the rise of water ratio of horizontal well in the initial stage of block x. At the same time, the situation of block x is summarized and suggestions are made in order to provide reference for the development scheme of similar blocks.
    VL  - 10
    IS  - 3
    ER  - 

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Author Information
  • Tianjin Branch, CNPC Offshore Engineering Company Ltd. Tianjin Branch, Tianjin, China

  • Tianjin Branch, CNPC Offshore Engineering Company Ltd. Tianjin Branch, Tianjin, China

  • Engineering & Design Institure, CNPC Offshore Engineering Company Ltd. Beijing, China

  • Tianjin Branch, CNPC Offshore Engineering Company Ltd. Tianjin Branch, Tianjin, China

  • Tianjin Branch, CNPC Offshore Engineering Company Ltd. Tianjin Branch, Tianjin, China

  • Section