油砂储层特征及测井评价方法研究——以柴达木盆地干柴沟地区为例

柴达木盆地油砂资源丰富，但目前尚无系统的测井评价方法。 结合已有的地质和测井资料，详细分析了干柴沟地区油砂储层的矿物成分、物性特征和含油性特征，认为孔隙度与含油率是油砂含油性的主控因素。 利用测井参数建立了孔隙度与含油率计算模型，二者均具有较高精度。 通过构建含油综合指
数，结合孔隙度与含油率确定了油砂的解释图版及分类标准，实际应用效果较好，可为利用测井方法评价油砂矿等非常规能源提供一定的参考。

Reservoir characteristics of oil sands and logging evaluation methods:A case study from Ganchaigou area,Qaidam Basin

Qaidam Basin is rich in oil sand resources, but at present there is no systemic method for logging evaluation. Based on the existing geological and logging data, the mineral composition, physical properties and oiliness of the oil sand reservoirs in Ganchaigou area were analyzed. It is considered that porosity and oil content are the main factors of the oiliness of oil sands. By logging data, the calculation models of porosity and oil content were established with higher accuracy. By means of constructing the concept of synthetic oil-bearing index, combined with porosity and oil content, the interpretation charts and classification criterion of oil sands were established, and good effect was achieved in the actual production.