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  • Open Access


    A New Elastoplastic 3D Sand Production Model for Fractured Gas Fields

    Hongtao Liu, Hongtao Jing, Zhixiong Tu*, Shiyong Qin, Junhui Wei, Xiaotong Yu

    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.7, pp. 1851-1862, 2023, DOI:10.32604/fdmp.2023.025015

    Abstract Reservoirs characterized by high temperature, high-pressure, medium high cementation strength, low porosity, and low permeability, in general, are not affected by sand production issues. Since 2009, however, it is known that cases exists where sand is present and may represent a significant technical problem (e.g., the the Dina II condensate gas field). In the present study, the main factors affecting sand production in this type of reservoir are considered (mechanical properties, stress fields, production system, completion method and gas flow pattern changes during the production process). On this basis, a new liquid-solid coupled porous elasto-plastic More >

  • Open Access


    Sand Production Prediction and Safe Differential Pressure Determination in a Deepwater Gas Field

    Hao Qiu1, Yi Wu1, Min Wen1, Xuesong Xing1, Zening Hou1, Nan Ma1, Zizhen Zhang2, Rui Zhang2,*

    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.3, pp. 579-592, 2023, DOI:10.32604/fdmp.2022.020297

    Abstract Sand production is a critical issue during the development of offshore oil and gas fields. Certain gas fields (e.g. the AB gas field) have high porosity and high permeability, and with water at the bottom of the reservoir, the risk of sand production greatly increases at high differential pressures. Based on reservoir properties, geological conditions, production requirements, and well logging data, in this study an ultrasonic time difference method, a B index method, and a S index method are used together with a model of rock mass failure (accounting for water influx and pressure depletion)… More >

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