Heavy oil is very viscous, range of size distribution of sand is wide, which are technical problems of desanding process.
稠油粘度大，含砂粒粒径分布范围广，成为除砂工艺中的技术难点。
Heavy oil is very viscous, range of size distribution of sand is wide, which are technical problems of desanding process.
稠油粘度大，含砂粒粒径分布范围广，成为除砂工艺中的技术难点。
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