【摘要】 在综合了无约束非线性最优化问题的 Newton法及 Gauss- Newton法的基础上 ,利用非线性最优化理论和方法 ,建立了一种新的试井分析自动拟合法—L MF(L evenberg- Marquardt- Fletcher)法 ,并对其加入罚函数进行改进。其原理简单 ,易于编辑 ,拟合速度快 ,结果精度高 ,适用于试井分析中的各类求参问题更多还原

【Abstract】 Based on the integration of Newton method and Gauss-Newton method which concern non-binding and nonlinearoptimization,by use of nonlinear optimization theory and method,a new type of automatic match method for welltesting analysis-LMF (Levenberg-Marguardt-Fletcher) method is created and improved with the penaltyfunction added. This method,with simple principle,easy editing,fast match and accurate results,is applicable todifferent parameter calculation problems in well testing analysis.更多还原