• Diljith C Dinesh
• Nasr Taha Ghanima
• Adityam Dutta

Any mature oil field with high-medium viscous, along with a low gas content-heavy oil and high mobility contrast between oil and water results in a rapid decline in production resulting in a phase where conventional oil recovery methods seem ineffective. Thus, it is necessary to develop new technologies to enhance the oil recovery from these reservoirs. In-Situ combustion (ISC) is a relatively effective technique for enhanced oil recovery of the reservoir that involves the process of the multi-phase fluid flow through porous media with the chemical and physical transition of crude oil components under the application of high temperature and pressure conditions. This study identifies and reviews the technique which is based on the principle of reducing the viscosity of heavy oil by heating oil in the reservoir itself. The process is initiated in the reservoir by injecting oxygen or air. Part of the oil is burned (oxidized) to produce heat and combustion gases that help to drive the (unburned) oil from the system. Extensive review has been put forward on the field tests conducted on small oil field in North of Thailand, Mehsana Gujarat (India), and Shengli, Liaohe, Xinjiang (China) oil regions. Results concludes that the feasibility of ISC technology for heavy oil reservoirs in similar oil fields. The work also provides developments, adaptability, and advantages of ISC technology for heavy oil reservoirs in the fields.

In-Situ Combustion (ISC), Enhanced Oil Recovery (EOR), Heavy oil reservoir, Combustion Override Split Production Horizontal Well (COSH), Toe-to-Heel Air Injection (THAI), Combustion Assisted Gravity Drainage (CAGD)

"Performance Evaluation Of In Situ Combustion Enhanced Oil Recovery Methods For Heavy Oil Recovery", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 5, page no.b374-b379, May-2021, Available :http://www.jetir.org/papers/JETIR2105178.pdf

"Performance Evaluation Of In Situ Combustion Enhanced Oil Recovery Methods For Heavy Oil Recovery", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 5, page no. ppb374-b379, May-2021, Available at : http://www.jetir.org/papers/JETIR2105178.pdf