期刊
JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
卷 143, 期 5, 页码 -出版社
ASME
DOI: 10.1115/1.4049466
关键词
drilling; drilling fluid; annular pressure losses
资金
- Research Council of Norway [294688]
- OMV
- Equinor
The paper demonstrates the application of Herschel-Bulkley fluid model in pressure loss calculations, as well as the effectiveness of the simplified model for axial flow and turbulent flow. Experimental results indicate that measuring viscous data at relevant shear rates can improve the accuracy of pressure loss predictions.
In the paper, it is demonstrated how a Herschel-Bulkley fluid model, where the parameters are selected from relevant shear rate range of the flow and are parametrically independent, can be used for pressure loss calculations. The model is found to provide adequate pressure loss predictions for axial flow in an annulus where the inner cylinder does not rotate. It is described how one can simplify a slot model approximation of the annulus pressure loss using the Herschel-Bulkley fluid model (Founargiotakis model). This simplified model gives approximately the same accuracy as does the full Founargiotakis model. It is shown that the use of such a parallel plate model gives reasonably good fit to measured data on laminar flow of oil-based drilling fluids if the viscous data are measured at relevant shear rates for the flow. Laboratory measurements indicate that the use of the simplified pressure loss model is also valid for turbulent flow. However, the predictions should be adjusted for the surface roughness in the well.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据