Cave energy storage heat transfer oil

Can salt cavern oil energy storage system be used in China?

Wei et al. (2023) conducted the salt rock mechanical experiments, and evaluated the feasibility of salt cavern oil energy storage system in China. Levin et al. (2005) pioneered a novel method for oil cooling during drawdown, while it is assumed that the oil inlet to the heat exchanger was identical to the average cavern oil temperature.

How does salt cavern oil storage work?

In the process of salt cavern oil storage, the distribution of temperature and pressure fields in the wellbore and salt cavern changes continuously with depth, leading to a gradual change in the density of crude oil along the wellbore.

What is cavern thermal energy storage?

Cavern thermal energy storage (CTES) refers to underground cavities used for thermal energy storage. These can include an insulated tank buried underground filled with water, or a pit dug, lined, and filled with water or water/gravel.

What is salt cavern strategic oil storage?

The salt cavern strategic oil storage can adopt the single well brine displacement method for oil injection and drawdown, which means pumping crude oil into the salt cavern to displace brine or injecting brine into the salt cavern to replace crude oil.

How does heat transfer affect a cavern?

The heat transfer at the cavern walls was found to highly affect the air temperature and pressure variations as compared to adiabatic conditions. In essence, heat transfer reduces the temperature and pressure fluctuations during cavern charge and discharge and effectively leads to a higher storage capacity.

Does salt cavern oil have a petroleum reserve?

Existing studies on the petroleum reserve in salt caverns are mainly focus on the stability and tightness analysis (Oliveira et al., 2023; Zhang et al., 2017, 2018). Wei et al. (2023) conducted the salt rock mechanical experiments, and evaluated the feasibility of salt cavern oil energy storage system in China.