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  1. No Access

    Article

    Detection of Bubble Flow by Cluster Analysis of Ultrasound Waves’ Spectral Properties

    As a non-invasive tool, ultrasound waves can be applied to probe gaseous content of the drilling fluid in offshore oil-drilling operations. The approach is believed to improve sensitivity and accuracy of a gas...

    Yiming Li, Peng Wang, Yiying Liu… in Chemistry and Technology of Fuels and Oils (2024)

  2. No Access

    Article

    Research of a Self-Adaptive High-Performance Re-Fracturing Technology with Knot Temporary Plugging in a Thin Reservoir with High Stress

    The K1g1 reservoir in the Jiudong Basin has many small thin layers, with strong interlayer heterogeneity and significant interlayer stress difference in the longitudinal direction. A low pum** rate and a lar...

    **ang Peng, Qingjiu Zhang, Ruijiang Yu… in Chemistry and Technology of Fuels and Oils (2023)

  3. No Access

    Article

    Method for Fracture Network Calculations in Multi-Staged Horizontal Drilling in Shale Reservoirs

    In this paper, based on the principle of superposition of acting forces, we propose a mathematical model for injected fluid-induced stress and calculate the stress distribution and SRV width vs. the stress dif...

    Jun Zhou, Cheng-yong Li, Rui Deng, Zhe Li… in Chemistry and Technology of Fuels and Oils (2018)

  4. No Access

    Article

    Plugging crossflow behind oil-well casing with nitrogen foam

    We studied plugging of crossflow behind oil-well casing with nitrogen foam under reservoir conditions. We have experimentally demonstrated the feasibility of the gas—liquid injection mode and suggest injecting...

    Zhao-Peng Yang, Shu-Sheng Gao, Yi-Ning Wang… in Chemistry and Technology of Fuels and Oils (2013)