气、水两相脉冲中子氧活化水流测井解释方法研究

Interpretation Method for Oxygen Activation Water Flow Logging of Two-phase of Gas and Water

对于产气携液井中气、水两相高速流动条件下的氧活化测井资料,常规的解释方法往往无法得到正确的结果。在分析井内流体流动状态的基础上,提出气、水两相脉冲中子氧活化水流测井解释方法,即探测器计数率比值法和两相滑脱模型解释方法。涩北气田气井氧活化找水实践表明,该解释方法具有可行性。

The key of the oxygen activation water flow logging data interpretation is accurate for deriving transition time,but this only points to symmetry and dissymmetry of single flow.For the gas wells,gas and water flow,log interpretation method is not suitable.Based on foundation of flow condition in the gas well,it adduces oxygen activation logging interpretation of the gas and water two-phase high-velocity flow.The method of DCR ratio and model of gas mix water slippage are used with good effect.