When steam is injected into the reservoir in its vapor phase, it transfers heat to the surrounding viscous oil primarily through conduction, thereby mobilizing the oil for production. Once the heat has been transferred, the steam condenses into liquid water, which is then produced to the surface along with the oil, forming a mixture known as an emulsion. Engineers carefully ensure that the vapor injection occurs on the appropriate side of the phase curve, based on the reservoirβs specific pressure and temperature conditions. After injection, thermodynamics govern the process, causing the steam to condense into liquid water.ββββββββββββββββββββββββββββββββββββπ«‘πͺ