均值为“零”的曲线重构技术在测井约束反演中的应用

The Application of Curve Reconstruction Based on Zero Mean in Constrained Log Inversion

通过特殊手段实现特征曲线重构,既反映目的层岩性变化,又较好保留了原始曲线代表的实际地质特征,较好地解决了曲线重构中存在的问题,提高了测井约束反演的可靠性。在葡萄沟地区的应用中准确地预测了该区七克台组4个砂组的平面变化。

Characteristic curves reconstruct by the special approach not only reveals lithological changes of the target zone, but also remains actual geologic features of the original curves, thus problems occurred in curve reconstruction can be solved, which improved reliability of constrained log inversion. The application of this technique in Pu Taogou region accurately predicted plane changes of four sand units of Qi Ketai formation.