Abstract: Various implementations directed to an oil well simulation tool are provided. In one implementation, the oil well simulation tool may include a reservoir tank configured to contain a working fluid, where the working fluid represents a reservoir fluid in a subterranean reservoir. The oil well simulation tool may also include a constant pressure device configured to receive the working fluid from the reservoir tank, where the constant pressure device is configured to maintain a substantially constant pressure within the device. The oil well simulation tool may further include a well tank assembly configured to receive the working fluid from a pipe coupled to the constant pressure device. The oil well simulation tool may additionally include a separator tank configured to receive the working fluid from the well tank assembly and configured to store the working fluid.