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本文研制的LBY—80型高压毛管流变仪，可用于测定在地层条件下具有低粘度和低切速原油或其他液体的流变特性曲线。其特点是全部液体系统都置于同一气体恒温箱中，控温精度在±0.1℃以内。对粘度为0.08泊的油测得剪切率为0.03秒~(-1)。研制中采用了特制的排量为0.01毫升/小时的微量泵和精度为0.05％的测压仪表。
The LBY-80 high-pressure capillary rheometer developed in this paper can be used to determine the rheological properties of crude oil or other liquids with low viscosity and low shear rate under formation conditions. It is characterized by all the liquid systems are placed in the same gas incubator, temperature control accuracy within ± 0.1 ℃. The oil shear rate was 0.03 sec -1 for oils with a viscosity of 0.08 poise. Developed using a special displacement of 0.01 ml / h of micropumps and precision of 0.05% of the pressure gauge.