Reham Mahmoud Farag Ahmed <br/><br/>
Improving drilling functions of the API commercial bentonite using different additives by controlling the electrokinetic properties of the suspension /  
 بإستخدام إضافات مختلفه عن طريق التحكم فى الخواص الكهروحركيه للمُعلق API تحسين وظائف الحفرللبنتونيت التجارى 
Reham Mahmoud Farag Ahmed ; Supervised Salah Eldin M. Elmofty , Adel M. Salem 
 - Cairo :   Reham Mahmoud Farag Ahmed ,   2017 
 - 73 P. :   charts , photographs ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Metallurgical Engineering 
<br/><br/> Drilling fluid is the most important element in any drilling operation. In drilling muds the most important factor is the stability of the slurry. This work aims to improve the drilling functions of the bentonite by controlling the electrokinetic properties of the suspension. A correlation between the electrokinetic and rheological properties of drilling mud was made by investigating the effect of bentonite particle size, bentonite concentration, pH and addition of different types of organic additives. Effect of bentonite particle size and concentration was investigated by using different grain sizes of 38, 45, 63, 106 æm and bentonite mixture (API) at different concentrations 
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<br/><br/><label>Subjects--Index Terms: </label>Additives Bentonite Drilling fluids