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本文应用流体力学、渗流力学、输砂力学和流体热力学等理论,通过分析混砂液在裂缝中的流动运移规律,建立了预测水力压裂造缝大小的数值模型及方法和液体渗滤模型,建立了一套压裂裂缝中的速度场、压力场和温度场(包括井筒温度场)以及混砂液在裂缝中运移分布的数值计算模型和方法,并通过实例计算验证其实用性。

Moving Distribution of the Sand-Carrying Fluid in Fractures

By applying the theories of hydto-mechanics, vadose mechanics, sand-transfer mechanics and fluid thermodynamics, etc. and through analyzing the moving law of the sand-carrying fluid in fractures, this paper establishes the numerical model and method forecasting the size of artifical fractures, a fluid percolation model and a set of numerical models an methods of the velocity field, pressure field, temperature field In artificial fractures(including temperature field in bore hole)and moving distribution of the sand-carrying fluid in fractures. Their applicability has been tested and verified by example calculation.