基于油页岩原位开采的生产实际,指出油页岩行业碳排放核算存在的问题,并将开采过程中钻井、压裂、加热、油气收集与处理、油气运输,以及废水、废弃物、生活垃圾的处置作为碳排放核算边界,确定碳排放源,构建碳排放核算模型,进一步确定排放因子.通过碳排放模型对某油页岩原位开采先导示范基地进行核算,结果表明:加热环节的排放量占比最大,为 29.44%;各环节中电力消耗产生的排放量最大.最后提出针对性减排措施.
This paper highlights the issues with the oil shale industry's carbon emission accounting based on the actual production of oil shale in-situ mining.It does this by using the drilling,fracturing,heating,oil and gas collection and processing,transportation to refineries,and treatment of wastewater,waste,and domestic waste during the mining process as the boundary of carbon emission accounting,which allows for the identification of the carbon emission source.Thus,the emission factors are ascertained and the carbon emission accounting model is developed.This paper also computes,using an accounting model,the carbon emissions for a pilot oil shale in-situ mining demonstration base.The findings indicate that,of all the links,the heating link generates the largest amount of emissions—29.44%—and that the largest source of emissions overall is electricity use.Lastly,specific steps to reduce emissions are suggested.