Since there is little or even no formation fluid samples taken from heavy oilfields at present ,by analyzing the properties data and the relationship between the surface and formation fluid ,an evaluation method for formation oil viscosity at the stage of reserves evaluation of Bohai heavy oilfields was established in this paper .According to the calculated oil vis-cosity in formation ,the reservoir fluid properties can be initially determined and provide a reference for selecting the oil -field development methods ,working out the development plan ,and predicting the oil recovery factor ,etc.%针对目前海上稠油油田地层流体取样少或无取样的问题，通过分析渤海地区稠油油田地面及地层流体性质资料，从中寻找二者之间的联系，初步建立了渤海稠油油田储量评价阶段地层原油粘度评价方法。根据计算所得地层原油粘度，可以初步判断储层流体性质，为油田选择开发方式、编制开发方案及采收率预测等提供参考依据。
展开▼
