Abstract: A method for treating a tar sands formation includes providing heated fluid to a first section of the hydrocarbon layer while providing heat to a second section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The second section is vertically displaced from the first section. Heat is allowed to transfer from the heaters and heated water to at least a portion of the formation. Fluids are allowed to gravity drain to a third section of the hydrocarbon formation. Fluids are produced from the formation through at least one production well that is located in the third section of the formation.

Abstract: A method for enhanced oil recovery, comprising selecting a target reservoir comprising hydrocarbons; inputting a plurality of parameters concerning the reservoir and the hydrocarbons into a simulator; and modeling an enhanced oil recovery technique with the simulator using dynamic local grid refinement to provide additional model resolution of a front between an enhanced oil recovery injectant and the hydrocarbons.

Abstract: A method for simulating fluid flow in an underground reservoir formation with uncertain properties comprises: a) building an object oriented reservoir simulation model with embedded uncertainty descriptors for the uncertain properties; b) using the uncertainty descriptors to define probability distributions and parameterizations for data objects associated with the uncertain properties; c) providing each uncertainty descriptor with functionality to display a probability distribution to associated parameterized data objects to a user; and d) processing the reservoir simulation model in a reservoir flow simulator with a graphical user interface, which displays user selected uncertainty descriptors, parameterized data objects and/or resulting spread of reservoir flow simulation results.