论文部分内容阅读
对于低孔低渗、泥质含量较高的泥质砂岩储层,我们提出了一种新的模型来反演地层水电阻率和含水饱和度。它首先对阿尔奇公式进行了泥质校正和粘土附加导电校正,同时采用变m指数部分补偿了低孔低渗的影响,然后利用得到的模型通过规划求解的方法同时反演得到了含水饱和度和地层水电阻率。计算结果与试油资料的对比证实了该方法的可行性。
For shale sandstone reservoirs with low porosity and permeability and high shale content, we propose a new model to retrieve formation water resistivity and water saturation. Firstly, the Archie formula was corrected for shalyness and additional clay conductivity correction. At the same time, the effect of low porosity and low permeability was partially compensated by using variable m exponent, and then the obtained model was simultaneously inversed by the solution method to obtain the water saturation And formation water resistivity. The comparison of calculation results and test oil data proves the feasibility of this method.