In this work, we extend our previous work on thermal streamline simulation to steam floods. Steam floods exhibit large volume changes and compressibility associated with the phase behavior of steam, strong gravity segregation and override, and highly coupled energy and mass transport. To overcome these challenges we implement a pressure update along the streamlines and a Glowinski θ-scheme operator splitting. We tested our streamline simulator on a 2D horizontal quarter-five-spot steam flood, a 2D vertical cross section steam flood with gravity override, and a 2D multi-well example. We compared our thermal streamline results with those computed by a commercial finite-volume thermal simulator on both accuracy and efficiency. For the cases investigated, we are able to retain solution accuracy while reducing computational cost and gaining connectivity information from the streamlines, which is useful for reservoir engineering purposes.

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