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    A comparison and assessment of the modelling and simulation of the sandstone matrix acidizing process: A critical methodology study

    Access Status
    Fulltext not available
    Authors
    Leong, V.
    Ben Mahmud, H.
    Law, Ming
    Foo, H.
    Tan, I.
    Date
    2018
    Type
    Journal Article
    
    Metadata
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    Citation
    Leong, V. and Ben Mahmud, H. and Law, M. and Foo, H. and Tan, I. 2018. A comparison and assessment of the modelling and simulation of the sandstone matrix acidizing process: A critical methodology study. Journal of Natural Gas Science & Engineering. 57: pp. 52-67.
    Source Title
    Journal of Natural Gas Science & Engineering
    DOI
    10.1016/j.jngse.2018.06.044
    ISSN
    1875-5100
    School
    Curtin Malaysia
    URI
    http://hdl.handle.net/20.500.11937/69471
    Collection
    • Curtin Research Publications
    Abstract

    Sandstone matrix acidizing is a well stimulation technique to enhance the productivity of a reservoir formation. Numerous models had been developed in the past years for mud acid sandstone stimulation but little research was done for HBF4acidizing. HBF4is positively reported to be effective in sandstone acidizing due to its retardation effect, which delays the hydrolysis of HF. This has greatly enhanced penetration depth of the acid into the sandstone matrix. However, this effect is limited over a certain range of temperature. With the current knowledge, there is a lack of understanding on the effective working temperature window of HBF4acidizing. Therefore, it is crucial that numerical studies can be adopted to carry out detail investigation to characterize the temperature effect on HBF4acidizing. The aim of this study is to review the numerical and models that have been developed on matrix acidizing process. Thus, a comparison and assessment of the modelling and simulation approaches done on mud acid stimulation process through literatures was done to select the most feasible model to be implemented to model HBF4stimulation process. A detailed pros and cons evaluation is conducted on all the models developed in the past years. Considering all aspects of the models developed, the four-parameter model is the best and most representative model to simulate the sandstone acidizing process. Hence, this paper has critically reviewed the modelling methodology and selected a practical software to perform HBF4acidizing simulation. This manuscript has also spotlighted on the possible research expansion for future investigation. It is recommended to perform a comprehensive analysis to determine the optimum temperature, acid concentration and injection rate before the operation of acid stimulation.

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      Matrix acidizing is a broadly developed technique in sandstone stimulation to improve the permeability and porosity of a bottom-hole well. The most popular acid used is mud acid (HF–HCl). It is a mixture of hydrofluoric ...
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      Leong, V.; Ben Mahmud, Hisham; Law, M.; Foo, C.; Tan, I. (2018)
      A wide and comprehensive understanding of the chemical reactions and mechanisms of HBF4 is crucial as it significantly influences its performance in stimulating a sandstone formation. In general, it is well-known that ...
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      Fluoroboric acid (HBF4) serve as one of the alternatives for conventional mud acid in the application of sandstone wells stimulation. Various parameters such as formation temperature and acid injection velocity would ...
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