相对渗透率分析技术在葡西地区储集层产液性质解释评价中的应用

随着大庆油田开发的不断深入，油层含水率的不断上升，开发井油水层解释的难度越来越大，疑难储集层的评价只靠测井解释已不能满足开发的需要。为解决这一难题，开展了利用相对渗透率分析技术对葡西地区葡萄花油层进行解释评价的工作。通过总结大量的岩心油水相对渗透率分析资料的规律，得到不同孔隙度和润湿性储集层在束缚水和残余油状态时的含油饱和度数值，结合热解法计算的含油饱和度来定量解释评价油水层。符合率达85％以上。相对渗透率分析技术在葡西葡萄花油层应用情况表明，该方法对判断储集层产液性质是一种行之有效的方法，可以很好地指导油田生产与开发。

Application of the relative permeability analytical technique in the interpretation and evaluation for the reservior fluid property in Puxi region

With the further development of Daqing oilfield, the water cut of the oil layers was rising steadily, the interpretation to the oil-water layers for the development wells was becoming more and more difficult, and it can not meet the needs of the oil development that the evaluation for the complex reservoirs only depended on well logging interpretation. In order to solve this problem, we carried out a job of using relative permeability analytical technique to conduct interpretation and evaluation for the Putaohua oil layers in Puxi region. Through summing up the rule of a great deal of core oil-water relative permeability analytical data, the water saturation value was obtained from the different porosity and wettability reservoir in the state of irreducible water and residual oil. Combining with the oil saturation value, which was worked out with pyrolysis method, to quantitatively interpret and evaluate oil-water layers, the coincidence rate was over 85%. The application situation of the relative permeability analytical technique in Putaohua oil layers of Puxi region indicated that it was an effective method to judge reservoir liquid production property and could guide the oilfield production and development better.