Injecting steam for heavy oil production has the problems of limited reservoir application and excessive greenhouse gas emissions. With the increasing global requirement for energy saving and emissions reduction, new alternative technologies must be found to reduce greenhouse gas emissions. As a kind of low-carbon extraction technology for heavy oil, electrical heating technology greatly reduces greenhouse gas emissions during heavy oil thermal recovery, consistent with the concept of sustainable development. Therefore, this paper conducts a feasibility study on electrical heating technology for heavy oil reservoirs based on the convective heat transfer method. In this paper, through numerical simulation of oil reservoirs, the effect of electrical heating for oil extraction under different production methods was first compared. On this basis, technical feasibility evaluations of reservoir electrical heating were conducted. The simulation results show that the periodic well shut-in oil exploration production method is most suitable for implementing on-site electrical heating technology. Water injection measures are taken during well shut-in, and rock heat transfer and water–oil two-phase convective heat transfer to the heavy oil reduce its viscosity. The technical feasibility evaluation of reservoir electrical heating includes determining reasonable single-well injection and production parameters, namely, a water injection rate of 7 m3 d−1, heating power of 8 kW m−1, heating time of 3 mon and production time of 12 mon, as well as suitable reservoir geological boundaries, namely, a crude oil viscosity of 30,000 mPa s or less at 25 °C, a formation horizontal permeability of 750 × 10–3 μm2 or more, a large effective reservoir thickness and oil saturation greater than 0.6. Therefore, electrical heating technology has certain feasibility when targeting heavy oil reservoir extraction.