標題: Multilayer Perceptron Learning with Particle Swarm Optimization for Well Log Data Inversion
作者: Huang, Kou-Yuan
Shen, Liang-Chi
Chen, Kai-Ju
Huang, Ming-Che
資訊工程學系
Department of Computer Science
關鍵字: apparent conductivity (C-a);true formation conductivity (C-t);multilayer perceptron (MLP);particle swarm optimization with mutation (MPSO)
公開日期: 2012
摘要: Well log data inversion is important for the inversion of true formation. There exists a nonlinear mapping between the measured apparent conductivity (C-a) and the true formation conductivity (C-t). We adopt the multilayer perceptron (MLP) to approximate the nonlinear input-output mapping and propose the use of particle swarm optimization with mutation (MPSO) algorithm to adjust the weights in MLP. In the supervised training step, the input of the network is the measured C-a and the desired output is the C-t. MLP with optimal size 10-9-10 is chosen as the model. We have experiment in simulation and real data application. In simulation, there are 31 sets of simulated well log data, where 25 sets are used for training, and 6 sets are used for testing. After training the MLP network, input Ca, then C-t' can be inverted in testing process. Also we apply it to the inversion of real field well log data. The result is acceptable. It shows that the proposed MPSO algorithm in MLP weight adjustments can work on the well log data inversion.
URI: http://hdl.handle.net/11536/20339
ISBN: 978-1-4673-1490-9
ISSN: 1098-7576
期刊: 2012 INTERNATIONAL JOINT CONFERENCE ON NEURAL NETWORKS (IJCNN)
Appears in Collections:Conferences Paper