Abstract The automation towards drilling fluid properties’ measurement has been pursued in the recent years in order to increase drilling efficiency with less human intervention. Adequately monitoring and adjusting density and rheology of drilling fluids are fundamental responsibilities of mud engineers. In this study, experimental tests that automatically characterize fluids were conducted. The basic objective is to measure the differential pressures along two sections of the pipes: one horizontal section and one vertical section. Using such measuring data, mathematical algorithms are then proposed to estimate fluids’ density and subsequently viscosity with respect to flow regimes, laminar and turbulence. The results were compared and validated with the values measured on rotational rheometers. With the help of models and numerical schemes, the work presented in the paper reveals a good opportunity to improve the accuracy and precision of continuous-measuring and monitoring fluids’ properties.

中文翻译：

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使用实验室设置自动表征非牛顿流体

摘要 近年来，为了在减少人工干预的情况下提高钻井效率，人们一直在追求钻井液性质测量的自动化。充分监测和调整钻井液的密度和流变性是泥浆工程师的基本职责。在这项研究中，进行了自动表征流体的实验测试。基本目标是测量管道两段的压差：一个水平段和一个垂直段。使用这些测量数据，然后提出数学算法来估计流体的密度以及随后相对于流态、层流和湍流的粘度。将结果与在旋转流变仪上测量的值进行比较和验证。借助模型和数值方案，