Geothermal Enhanced oil Recovery, as a green EOR method

Nowadays Large quantities of heavy oil and tar sands become attractive to the industry as the world‟s conventional oil production starts to decline. In fact, nearly 70% of total world oil resources are from heavy oil, extra heavy oil, tar sand, and bitumen reservoirs. To obtain production from heavy oil reservoirs, thermal methods are usually implemented in many heavy oil fields. These involve heating reservoir fluid to decrease its viscosity. Heavy oil reservoir with thin layer or edge water isn‟t suitable for thermal recovery, also electric heating leads to considerable electrical consumption and low injection water temperature decreases reservoir temperature then increased crude oil viscosity. The prolonged temperature difference breaks up reservoir pore throat cement and framework minerals. To improve high-capacity channel communication, geothermal oil recovery method is proposed as a novel technique. Broad-sense abundant geothermal resources and existing injection water technique equipment are used, deep-seated high temperature liquid (oil-gas-water mixture) draws geothermal warming flowing layer to transit heat upward, decreases viscosity and increases fluidity. Reservoir temperature difference offers geothermal fountain. This Method is an environmentally suggestion and it doesn‟t need to any fuel to burn or release any gasses to atmosphere. It is proposed that geothermal oil recovery can enhance production environmentally

کلیدواژه ها:

Geothermal ، EOR ، Novel ، Environmentally ، Thermal