METHOD AND APPARATUS TO AUTOMATICALLY RECOVER WELL GEOMETRY FROM LOW FREQUENCY ELECTROMAGNETIC SIGNAL MEASUREMENTS

摘要

A technique that is usable with a we!! includes providing a model to predict measurements that are received by receivers due to transmissions by sources based on estimated positions of the receivers relative to the sources The estimated positions each have at least two dimensions. At least some of the receivers and the sources are located in the well. On a computer, the estimated positions are automatically refined based on a comparison of the predicted measurements and actual measurements that are obtained by the receivers.