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首页> 外文期刊>Journal of natural gas science and engineering >Modeling of micro-bubble surfactant multi-layer drilling fluid stability based on single bubble behavior under pressure and temperature in a deviated gas well
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Modeling of micro-bubble surfactant multi-layer drilling fluid stability based on single bubble behavior under pressure and temperature in a deviated gas well

机译：基于偏气井在压力和温度下的单泡行为的微泡表面活性剂多层钻井液稳定性建模

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摘要

Micro-bubble surfactant multi-layer (MBSML) drilling fluids are included in the drilling operation of low pressure reservoirs. These fluids contain tiny dispersed micro-bubbles coated with two surfactant layers. For the stability evaluation of these fluids in operational conditions, surfactant type, concentration, pressure and temperature effects on the size of micro-bubble fluid, should be scrutinized. For investigating these variables, a diffusion model for solute transport in micro-bubble fluids was proposed with the mass transfer concept. The model included mass transfer resistance of fluid phases and interfaces. It was observed that the bubble sizes decrease as a result of adding surfactant to the fluid. However, there were pressure, temperature and surfactant concentration thresholds for the bubble stability. (C) 2015 Elsevier B.V. All rights reserved.
机译：低压储层的钻井作业中包括微泡表面活性剂多层（MBSML）钻井液。这些流体包含涂有两个表面活性剂层的微小分散微气泡。为了评估这些流体在操作条件下的稳定性，应仔细研究表面活性剂的类型，浓度，压力和温度对微泡流体尺寸的影响。为了研究这些变量，提出了具有传质概念的微气泡流体中溶质迁移的扩散模型。该模型包括流体相和界面的传质阻力。观察到，由于在流体中添加了表面活性剂，气泡尺寸减小了。但是，有气泡稳定性的压力，温度和表面活性剂浓度阈值。 （C）2015 Elsevier B.V.保留所有权利。

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