Potential Impact of In-Situ Oil Shale Exploitation on Aquifer System
2018
Shuya Hu | Changlai Xiao | Xue Jiang | Xiujuan Liang
The effects of heat on physical and hydraulic properties of oil shale were investigated. The porosity and water absorption of oil shale increased with increasing pyrolysis temperature. The porosity increased by 19.048% and water absorption increased by 0.76% when oil shale was heated to 500 °C. Thus, originally impermeable oil shale was converted to a permeable rock formation, facilitating interactions between surrounding groundwater and oil. Heated oil shale was immersed in water, which showed strong alkaline properties. The content of Ca2+ remained stable and a slight decrease in SO42− content was observed. Hydrocarbon content in the water samples reached maximum concentration within three days.
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