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在间抽试验的基础上 ,系统研究了抽油机井在间抽过程中泵抽产量、沉没度以及液面恢复时沉没度随时间的变化特点。根据泵抽过程中流压变化与电容器放电过程中电压变化的相似性 ,确立了抽油机井间抽过程中流压变化的数学模型 ,进而根据该数学模型及沃格尔方程 ,导出了间抽过程中地层渗流方程 ,根据以上方程 ,通过在坐标系中做图的方法 ,确定出了抽油机井的合理间抽区间 ,并给出了确定合理间抽制度的系统方法。根据以上系统分析 ,取得了对间抽的几点认识。
On the basis of pumping tests, the characteristics of pump pumping output, submergence, and submergence during recovery of liquid level over time were systematically studied. According to the similarities between the variation of the pressure in the pumping process and the voltage in the discharging process of the capacitor, a mathematic model of the variation of the pressure in the inter-well pumping process is established. According to the mathematical model and the Vogel equation, According to the equation above, the reasonable intervals of pumping well are determined by doing the mapping in the coordinate system, and a systematic method to determine the reasonable pumping interval is given. Based on the above system analysis, made a few understanding of the pumping between.