apparent wellbore radius 井的折算半径
effective wellbore radius 油井折算半径
apparent t wellbore radius 井的折算半径
Based on mass, momentum, energy conservation and the theory of wellbore radius heat transmission, established fluid pressure and temperature distribution prediction mathematical models.
基于质量、动量和能量守恒定律及井筒径向传热理论建立了流体压力、温度分布预测数学模型。
Furthermore, formulas describing flow coefficient, fracture radius, wellbore storage factor are presented.
从而提供了求得流动系数、裂缝半径及井筒存储等参数的公式。
A sand retention screen with large radius and high permeability near the wellbore can be formed by high liquid production and the large amount of sand.
管外高压充填防砂增液技术通过高液量和大砂量在近井地带形成大半径、高渗透的挡砂屏障；
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