The in-version result can reflect the transverse variation of the main layer of PI2, PI3, it provides the technique guarantee for drilling the first ladder horizontal well successfully.
反演结果能明显反映出主力油层葡I2、葡I3层的横向变化，为成功完钻大庆第一口阶梯状水平井提供了有利技术保证。
Ring pouring channel was set for pouring position. Ladder-like horizontal gate was designed for horizontal gate. Section area of ingate was calculated by the equation.
浇道位置为环形浇道，横浇道设计成扁梯形横浇道，内浇道截面面积根据公式求取。
Ring pouring channel was set for pouring position. Ladder-like horizontal gate was designed for horizontal gate. Section area of ingate was calculated by the equation.
浇道位置为环形浇道，横浇道设计成扁梯形横浇道，内浇道截面面积根据公式求取。
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