An interpolation method taking into account inequality constraints: II. Practical approach |
| |
Authors: | Clement Kostov and Olivier Dubrule |
| |
Institution: | (1) Applied Earth Sciences Department, Stanford University, 94305 Stanford, California;(2) 1 Lincoln Center, Sohio Petroleum Company, 5400 LBJ Freeway, Suite 1200, 75240 Dallas, Texas |
| |
Abstract: | Common features of models for interpolation, consistent with a finite number of inequality constraints on the range of values of a variablez, are discussed. A method based on constrained quadratic minimization yielding kriging estimates when no constraints exist, is presented. A computationally efficient formulation of quadratic minimization is obtained by using results on duality in quadratic programming. Relevant properties of the optimal interpolator are derived in a simple, self-contained way. The method is applied to mapping of horizon depth and estimation of thickness of an oil-bearing formation. |
| |
Keywords: | kriging mapping quadratic programming isopachs |
本文献已被 SpringerLink 等数据库收录! |
|