注蒸汽原位开采油页岩热解温度确定及可行性分析

Experimental Study on Feasibility and Proper Temperature in Situ Mining Based Overheat Steam Heating Oil Shale

利用热重仪对新疆油页岩进行不同温度下的热解实验,结果显示热解温度高低和油页岩在特定温度下的热解时间都会明显影响到油页岩的失重率,热解新疆油页岩的最佳温度值为500℃;通过高精度显微CT实验系统对热解后油页岩的细观进行测试,得到注蒸汽原位开采油页岩是完全可行的结论,这对油页岩原位开采技术的发展具有重要意义。

The pyrolysis experiments under different temperatures of Xinjiang oil shale was analyzed by means of thermal gravimetric analysis. the result shows： both the pyrolysis temperature and the duration at the temperature have a great influence on oil shale weightlessness rate,and the best pyrolysis temperature of the Xinjiang oil shale is500 ℃. Based on CT experimental analyticl system,analysis of micro state of superheated steam pyrolysis oil shale in-situ stress state. A conclusion was made： it is feasible to simulate the process of extraction of oil shale at in-situ stress state,which has important significance for the development of extraction of oil shale at in-situ stress state.