油页岩资源评价关键参数及其求取方法

The Key Parameters of Oil Shale Resource Appraisement and Its Evaluating Methods

资源评价关键环节之一就是评价参数标准的确定和求取。全国首次油页岩资源评价结果表明:油页岩质量评价关键参数主要有含油率(ω)、干燥基的灰分(Ag)、干燥基的低位发热量(QgDW)及干燥基的全硫含量(SgQ);油页岩资源量评价关键参数包括矿层可采厚度(H)、矿体有效面积(S)、矿体体重(D)、矿体资源类型等。不同参数的意义和评价标准不同,在表征单个工程控制点、块段油页岩体或单层油页岩等不同地质特征时,各参数的求取方法、计算公式有一定的差异性。进行油页岩资源评价时,应根据不同的目的选取不同的参数和计算方法。

One of the key processes of the resource appraisement is to ascertain and evaluate the criterion of evaluation parameters. It is manifested by the first nationwide oil shale resource appraisement that the key parameters for the oil shale quality assessment are mainly concerned with oil yield（m）, desiccation-based ash productivity（A^8）, lower thermal value（Q^8DW） and whole sulphur percentage（S^8Q）. The key parameters of the oil shale resource appraisement consist of ore bed recoverable thickness（H）, ore- body effective area（S）, orebody weight（D） and orebody resource types, etc. Different parameters have various meanings and evaluation criterions. With respect to characterizing the different geological features of the single-project control point, massive oil shale rock or single layer oil shale, etc. , there are certain discrepancies in the methods of evaluating various parameters and calculating formulas as well. Different parameters and calculating methods should be selected according to the various purposes during the estimation of the oil shale resources.