热解色谱水淹层评价技术及应用

依据热解色谱工作原理以及热解色谱判断水淹层的原理,应用热解色谱数据,开发出一种评价水淹层的新技术,并结合测井数据、试油数据以及试采数据,以扶余油田密闭取心井为例,进行水淹程度评价,通过与试采试油成果对比验证,表明此方法能够提高疑难层测井解释精度。热解色谱判断水淹层方法不适用于碳酸盐岩裂缝储集层;热解色谱方法对凝析油、轻质油、中质油进行水淹解释结果较好;对重质油和稠油解释结果与试采结果有偏差;热解色谱进行水淹解释,所用分析样品受时间影响较大;热解色谱结合荧光图像判断水淹程度方法比测井解释结果更准确。

Evaluating technology and application of water flooded formation using pyrolysis gas chromatography

According to operational principle of pyrolysis gas chromatography and its judgment on water flooded formation, the new technique of judging water flooded formation applied pyrolysis gas chromatography data, combined logging data, well testing data and test production data, and carried on evaluation on water flooded degree by using the example of Fuyu oil field closed core well. Comparing the findings in well testing and test production, this method could improve accuracy of high questioned logging interpretation. However this method can't be applied to carbonate fractured reservoir, and it has better water flooded interpretation on condensate oil, light oil and middle weight oil and it has deviation of heavy oil and viscous oil comparing with the test production result. By using this method, the sample is affected a lot by time. pyrolysis gas chromatography combining fluorescence image could provide more accurate water flooded degree than logging interpretation.