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1. Tripuraneni, Gopi Chand. Performance Analysis of Enhanced Activated Sludge as Drilling Mud Additive.

Degree: 2017, University of Louisiana at Lafayette

The use of drilling fluids alone is not sufficient to reduce friction substantially, so a suitable lubricant has to be added to the drilling fluid so as to reduce the friction to an acceptable range. The lubricant reduces friction of fluid by producing a thin film of liquid that separates the solid surfaces in contact. The primary objective of this research is to evaluate the performance of enhanced activated sludge (EAS) as a lubricant in drilling fluids. Enhanced activated sludge is composed of mixed consortium of microorganisms grown under conditions that promote lipid accumulation. Experiments were conducted to evaluate (EAS) with different lipid contents. Performance of EAS as drilling fluid additive was compared with commercial lubricants in terms of lubricity and flow properties. Lubricants are evaluated using water-based drilling mud at lubricant concentrations of 1.78, 3.11, 4.43, and 6.17 pounds per barrel (ppb). Experiments were carried out in a standard lubricity meter. The Lubricity meter tests the ability of the lubricant in the drilling mud to reduce friction. Other parameters measured re plastic viscosity, gel strength, fluid loss, mud cake thickness, sand content, methylene blue test (MBT), alkalinity, and chlorides. All the lubricants studied (including EAS) lowered the coefficient of friction and significant torque reduction. EAS reduced the torque and fluid loss better than raw sludge. However, the top performers in terms of reducing the torque were the commercial lubricants. Bio Add was the best performer in the presence of both barite and bentonite. HDL+ resulted in the least coefficient of friction when the mud was prepared with only bentonite. A cost analysis was prepared to show the economics involved in using sludge (raw and EAS) as additive in drilling fluids. These findings show the potential of activated sludge for improving the properties of water-based drilling mud.

Subjects/Keywords: Chemical engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Tripuraneni, G. C. (2017). Performance Analysis of Enhanced Activated Sludge as Drilling Mud Additive. (Thesis). University of Louisiana at Lafayette. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10268960

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Tripuraneni, Gopi Chand. “Performance Analysis of Enhanced Activated Sludge as Drilling Mud Additive.” 2017. Thesis, University of Louisiana at Lafayette. Accessed October 21, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10268960.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Tripuraneni, Gopi Chand. “Performance Analysis of Enhanced Activated Sludge as Drilling Mud Additive.” 2017. Web. 21 Oct 2017.

Vancouver:

Tripuraneni GC. Performance Analysis of Enhanced Activated Sludge as Drilling Mud Additive. [Internet] [Thesis]. University of Louisiana at Lafayette; 2017. [cited 2017 Oct 21]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10268960.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tripuraneni GC. Performance Analysis of Enhanced Activated Sludge as Drilling Mud Additive. [Thesis]. University of Louisiana at Lafayette; 2017. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10268960

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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