【摘要】 水平井产出剖面测井中集流型仪器内油水两相流流型通常呈复杂多态性,正确认识流型演化规律有助于井下流量测量精度提高.在油水两相流流动环路中采集电导及电容传感器波动信号的基础上,基于非线性时间序列递归图纹理分析方法,对集流型仪器内油水两相流流型特征进行了表征.研究发现:在不同流量及含水率下,递归图纹理特征与流型之间具有较好的对应关系,可通过递归图纹理特征有效识别水平油水两相流流型.更多还原

【Abstract】 The flow patterns of oil-water two phase flow in concentrating type tool of production profile logging of horizontal well usually present complex polymorphism, and understanding the flow pattern transition is very useful for improving the precision of flow measurement underground. The oil-water two phase flow pattern in concentrating type tool was characterized by using the nonlinear time series recurrence plots based on impedance and capacitance signals acquired from the flow loop test. The research shows that in different flow rate and water cut, there is a corresponding relation between recurrence plot texture feature and flow pattern, which could be used in identifying the flow pattern of horizontal oil-water two phase flow.更多还原