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油层孔隙压力自动扫描是利用数字测井数据进行油层孔隙压力解释的一项新技术。该项技术研究从自然电位测井原理出发 ,分析自然电位的构成因素 ,利用过滤电位与压差的相关性建立压力解释数学模型 ,应用 RFT实测数据确定参数系列。采用计算机自动将所需各曲线的数据按对应深度读值后赋给数学模型 ,并附加必要的边界条件 ,进行逐点计算 ,形成孔隙压力剖面线。通过自动扫描软件即可实现测井现场孔隙压力剖面的计算和打印。也可在室内针对某些单层进行孔隙压力解释。该方法具有计算精度高 ,生成速度快 ,成本低 ,可操作性强的特点 ,解释成果可以广泛应用于油田加密钻井和开发调整各个方面。
The automatic scanning of reservoir pore pressure is a new technique to interpret the pore pressure of the reservoir by using digital well logging data. Based on the principle of natural potential well logging, this technology study analyzes the components of natural potential, establishes the mathematical model of pressure interpretation by using the correlation between filtration potential and pressure drop, and determines the parameter series by using RFT measured data. The computer automatically assigns the required curve data to the mathematical model according to the corresponding depth reading, and adds the necessary boundary conditions to perform the point-by-point calculation to form the pore pressure profile line. Through the automatic scanning software logging pore pressure section can be calculated and printed. Pore pressure can also be interpreted indoors for some monolayers. The method has the characteristics of high calculation precision, fast generation speed, low cost and strong operability. The interpretation results can be widely applied in all aspects of oilfield drilling and development and adjustment.