Investigation of Performance of Electromagnetic Heating with Nano-Ferro Fluid and NaCl Solution for Recovery Heavy Oil Deposits

Abstrak

In providing a solution for lifting up the viscous oil which is immensely concerned in a mature field, thermal recovery is commonly applied to recover the oil with API gravities approximately 20 by using the steam injection and in situ combustions. It had been the way out to lower enough the viscosity so that the oil would flow toward more effortless than the viscous one for the recent times. Applying electromagnetic microwave to heat up the reservoir can overcome the depth limitation which is often found in conventional thermal recovery methods. This method uses the nano-ferro fluid as a stimulant that conveniently radiates heat in a reservoir. It is important to analyze the brine formation in affecting the optimization of the thermal period while the nano-ferro fluid being directly introduced to formation fluid. Therefore, NaCl solution becomes variable which was used to represent brine formation in investigating the heating time of saturated artificial cores. Meanwhile, the optimal concentration of nano-ferro had been recognized. The microwave was also varied in the sequence of power, 378 Watt, 468 Watt, 657 Watt, 792 Watt, and 900 Watt. For example, applying 50,000 ppm, 100,000 ppm, and 350,000 ppm in performing an investigation that would give a significant performance while thermal process. When 657 Watt was set to heat up the compartment contained an artificial core, the temperature could reach up to 90 °C in 110 seconds, 82 seconds, and 54 seconds consecutively from low to high NaCl solution. In that way, the sensitivity of this variable was proved that NaCl solution greatly affects the temperature increment in times. Furthermore, this research can be a considerable study in finding out the behavior of formation fluid which contributes to optimizing nano-ferro fluid thermal recovery.