Experimental studies on stability and viscoplastic modeling of colloidal gas aphron (CGA) based drilling fluids
Experimental studies on stability and viscoplastic modeling of colloidal gas aphron (CGA) based drilling fluids
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DOI：
10.1016/j.petrol.2013.12.002
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发表时间：
2014-01-01
影响因子：
--
通讯作者：
Shahri, Mojtaba Pordel
中科院分区：
文献类型：
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作者：
Arabloo, Milad;Shahri, Mojtaba Pordel
本文介绍了含CGAs钻井液的气泡尺寸分布、稳定化和流变性的统计评价结果。通过排水率测量、气泡生长速率监测和剪切应力/剪切率测量，研究了CGAS的稳定性分析。采用8种流变模型对CGA基钻井液的剪切流动行为进行了定量描述。对每个模型的适用性进行了详细的分析。最后，提出了一个综合考虑温度和剪切速率对CGA钻井液粘度影响的新模型。研究结果可为油田钻井作业中选择合适的CGA基钻井液使用程序提供参考。(C)2013爱思唯尔B.V.保留所有权利。
This paper presents results of bubble size distribution, stabilization, and statistical evaluation of rheological behavior of drilling fluids containing CGAs. The stability analysis of CGAs is investigated using drainage rate measurement, monitoring bubble growth rate and shear stress/shear rate measurement over time. Eight rheological models are also employed to make a quantitative description of the shear flow behavior of CGA based drilling fluids. The applicability of each model is examined in detail. Finally, a new model to combine the effects of temperature and shear rate on the viscosity of CGA based drilling fluids is put forward. The results of this study can be helpful in selecting the appropriate procedure for utilizing the CGA based drilling fluids in oilfield drilling operation. (C) 2013 Elsevier B.V. All rights reserved.