What is the RT Rate, and what is it used for?
The “RT Rate” curve is for multilayer reservoirs only. “RT” stands for Running Total. The RT Rate for a layer is the sum of the layer rates from the bottom layer up to and including the layer of interest. I found that comparing the RT Rate (and to a lesser extent, the RT Cum as well) to the corresponding values from data from multiple spinner surveys to be the best tool for simultaneous history matching of total well rate and spinner survey data. This allows me to start with the bottom layer and match two or three layers at a time by hand to get close before using automatic matching to refine the match.
