脉冲注入对支撑剂在裂缝中分布的影响

Zhifeng Bai, Mingzhong Li
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引用次数: 0

摘要

支撑剂浓度和裂缝电导率的变化趋势基本一致。结合对不同位置有效支撑裂缝平均电导率的分析,可以明显看出,脉冲注入后支撑剂的分布模式变得不均匀。然而,这种分布模式在宏观上呈现出不连续的分布规律。受支撑剂分布模式的影响,不同位置的裂缝电导率表现出明显的差异。在常规注入过程中,井筒附近裂缝的电导率由近及远逐渐降低。相反,在脉冲注入过程中,支撑剂相的分布会引起裂缝电导率的波动,由近及远。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of pulse injection on proppant distribution in fracture
The trend of changes in proppant concentration and fracture conductivity is essentially identical. When combined with an analysis of the average conductivity of effectively propped fractures at different locations, it becomes evident that the proppant distribution pattern becomes uneven after pulse injection. However, this pattern displays a discontinuous distribution law on the macro level. Influenced by the proppant distribution pattern, fracture conductivity exhibits significant variation at different locations. During the conventional injection process, the conductivity of fractures near the wellbore gradually decreases from proximity to distance. Conversely, the proppant phase distribution during pulse injection induces fluctuation in fracture conductivity, transitioning from proximity to distance.
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