The Effects of Various Parameters on Wellbore Stability During Drilling Through Shale Formations
The Effects of Various Parameters on Wellbore Stability During Drilling Through Shale Formations
复制标题
页岩地层钻井过程中各种参数对井眼稳定性的影响
DOI：
10.1080/10916466.2011.606253
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
M. R. Pishvaie
中科院分区：
文献类型：
--
作者：
S. Rafieepour;C. Ghotbi;M. R. Pishvaie
现场证据表明井筒中的热和化学状态极大地影响井筒稳定性。本研究提出了溶质、溶剂和热量传输的通用耦合模型，包括它们对井眼稳定性的综合影响。钻井液参数优化对于井眼稳定性分析至关重要，尤其是在高压高温环境下。化学势和温度梯度对流体流动的耦合影响显着改变钻孔周围的孔隙压力和应力。研究了泥浆比重、溶质浓度梯度、页岩性质和温度梯度等各种参数对井眼稳定性的影响。
Field evidence indicates that the thermal and chemical regimes in wellbore considerably affect the wellbore stability. This study presents a general coupled model for transport of solute, solvent and heat including their combined effects on the wellbore stability. Optimization of drilling fluid parameters is crucial for wellbore stability analysis particularly in high pressure-high temperature environments. The coupled effects of chemical potential and temperature gradients on fluid flow significantly change the pore pressure and stress around a borehole. The effects of various parameters such as mud weight, solute concentration gradient, shale properties, and temperature gradient on wellbore stability have been investigated.