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  • Open Access


    Development of a High-Temperature Thixotropic Cement Slurry System

    Ping Lv1, Jiufei Liu2, Mengran Xu3,*, Hui Tian3,4, Huajie Liu3, Yuhuan Bu3, Zhuang Cai3, Junfeng Qu5

    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.11, pp. 2907-2921, 2023, DOI:10.32604/fdmp.2023.029304

    Abstract Cementing carbonate reservoirs is generally a difficult task. The so-called thixotropic cement slurry has gained considerable attention in this regard as it can help to fix some notable problems. More precisely, it can easily fill the leakage layer; moreover, its gelling strength can grow rapidly when pumping stops, thereby increasing the resistance to gas channeling, effectively preventing this undesired phenomenon in many cases. High-temperature thixotropic cement slurry systems, however, are still in an early stage of development and additional research is needed to make them a viable option. In the present study, using a self-developed composite high-temperature thixotropic additive as… More >

  • Open Access


    Modeling and Simulation of Sealing Spray Application Using Smoothed Particle Hydrodynamics

    Robert Rundqvist1, Andreas Mark1, Fredrik Edelvik1, Johan S. Carlsson1

    FDMP-Fluid Dynamics & Materials Processing, Vol.7, No.3, pp. 259-278, 2011, DOI:10.3970/fdmp.2011.007.259

    Abstract Multiphase flow simulation using Smoothed Particle Hydrodynamics (SPH) has gained interest during recent years, mostly due to the inherent flexibility of the method and the physically rather intuitive formulation of extra constitutive equations needed when dealing with for instance non-Newtonian flows. In the work presented here, simulations based on an SPH model implemented in the flow solver IBOFlow has been used for simulation of robotic application of sealing material on a car body. Application of sealing materials is done in order to prevent water leakage into cavities of the body, and to reduce noise. In off-line programming of the robots… More >

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