Design and Characterization of Silica based Mud for Shale Drilling

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Farohi, Mohammad Reza | 2016

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Type of Document: M.Sc. Thesis
Language: English
Document No: 49124 (66)
University: Sharif University of Technology, International Campus, Kish Island
Department: Science and Engineering
Advisor(s): Ramezani Saadat Abadi, Ahmad; Jamshidi, Saeed
Abstract:
Constant drilling in the shale formation causes many problems such as shale swelling and well instability. Annually many costs are spent dealing with these problems in the drilling industry. Many factors can affect this issue. The most important factor is the type of drilling fluid and its additives. The use of oil-based mud is the best option to deal with the clays instability but, due to environmental problems resulting from OBM, their use has been banned in most parts of the world. Therefore, the water-based mud is the only option for the oil industry that can modify its property by use of additives. In this study, the muds contain Nano silica have been introduced. Silicate as shale inhibition can improve the performance of water-based mud, in which the normal scale and Nano-particles are used. This type of additives has many advantages and disadvantage. In this research, the effect of Nano silica-based mud has been investigated for Asmary formation shales and the mud stability factor such as drilling fluid loss and viscosity control
Keywords:
Shale Formation ; Instability ; Silicates ; Nanoparticles ; Dilution ; Blood Mud ; Drilling Fluid ; Water-Based Drilling Fluid

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