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对于砂泥岩剖面,双水模型用于测井资料的解释,在理论与实践上都是比较成熟的。在双水模型和测井优化解释程序系统GCDQ的基础上,建立了新的测井优化解释数学模型。这个模型由6个非线性方程和13个不等式约束条件组成,适用于处理CLS—3600系列测井仪获得的资料,也可以用于处理斯仑贝谢仪器测的曲线。用最优化方法解决测井解释问题是一种很有发展前途的方法,解除了因数学模型复杂而无法求解的顾虑,不必再因无法求解而简化问题,忽略一些重要的影响因素。这样就可以提高测井解释的精度,使用此模型解释了大庆油田外围地区的测井资料,根据所处理的6口井62个层的统计,解释符合率达到80%。
For the sand-shale section, the dual-water model is used to interpret the logging data, which is quite mature both in theory and in practice. Based on the double-water model and Well Logging Optimization Interpreter System (GCDQ), a new mathematic model of well-logging optimization interpretation was established. The model consists of six nonlinear equations and 13 inequality constraints. It is suitable for processing data obtained from the CLS-3600 Series logging tool and can also be used to process curves from a Schlumberger instrument. The optimization method to solve the logging interpretation problem is a promising method to solve the complex mathematical model can not be solved because there is no need to simplify and solve the problem can not be ignored, ignoring some of the important factors. In this way, the accuracy of log interpretation can be improved. Using this model, logging data in the periphery of Daqing Oilfield can be interpreted. According to the statistics of 62 layers of six wells processed, the coincidence rate of interpretation reaches 80%.