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Stabilizing biopolymers in water-based drilling fluids at high temperature using antioxidants, a formate salt, and polyglycol (2018)
Journal Article
Akpan, E., Enyi, G., Nasr, G., & Yahaya, A. (2018). Stabilizing biopolymers in water-based drilling fluids at high temperature using antioxidants, a formate salt, and polyglycol. Journal of Engineering Technology, 7(2), 469-486

Biopolymers degrade in water-based drilling fluids when exposed to high temperatures for some time, thus leading to hole-cleaning problems such as stuck pipe. To stabilise biopolymers in drilling fluids, the mechanisms by which they degrade at elevat... Read More about Stabilizing biopolymers in water-based drilling fluids at high temperature using antioxidants, a formate salt, and polyglycol.

Compressed natural gas : gas distribution option for Sub-Saharan West Africa (2018)
Journal Article
Enyi, G., Welekwe, D., & Appah, D. (2018). Compressed natural gas : gas distribution option for Sub-Saharan West Africa. Journal of Engineering Technology, 7(2), 356-376

Natural gas production in Sub-Saharan West African is projected to grow annually by 5% from 2010 to 2040. The distribution of this gas is vital to economic growth in the sub region. Compressed Natural Gas (CNG) which is natural gas that has been comp... Read More about Compressed natural gas : gas distribution option for Sub-Saharan West Africa.

Economic evaluation of environmentally friendly vegetable oil-based invert emulsion (2017)
Journal Article
Ihenacho, P., Burby, M., Nasr, G., & Enyi, G. (2017). Economic evaluation of environmentally friendly vegetable oil-based invert emulsion. Journal of Engineering Technology, 6(2), 776-783

Stringent environmental regulations and technical requirements of difficult formations such as shale demand the use of functional mud system to complete a well safely and economically.
The economic viability of 50/50 oil-water ratio invert emulsion... Read More about Economic evaluation of environmentally friendly vegetable oil-based invert emulsion.

Inhibition performance of mild steel corrosion in the presence of Co2, HAc and MEG (2016)
Presentation / Conference
Ikeh, L., Enyi, G., & Nasr, G. (2016, May). Inhibition performance of mild steel corrosion in the presence of Co2, HAc and MEG. Presented at SPE International Oilfield Corrosion Conference and Exhibition, Aberdeen, Scotland, UK

The formation of hydrate and scale deposition is a major challenge in the petroleum industry.To avoid corrosion and hydrate formation, monoethylene glycol (MEG) is been utilized in the pipeline as an antifreeze and anticorrosion agent. It has been ob... Read More about Inhibition performance of mild steel corrosion in the presence of Co2, HAc and MEG.

Utilization of egg yolk as a non-toxic emulsifier in environmentally friendly invert emulsion drilling mud (2016)
Journal Article
Ihenacho, P., Burby, M., Nasr, G., & Enyi, G. (2016). Utilization of egg yolk as a non-toxic emulsifier in environmentally friendly invert emulsion drilling mud. Journal of petroleum engineering & technology (Online), 6(1),

Vegetable oil such as Jatropha has been shown to be a comparable alternative to diesel and mineral oils for environmentally friendly oil based drilling mud. However compatibility of the vegetable oils with the usual chemical additives is still a majo... Read More about Utilization of egg yolk as a non-toxic emulsifier in environmentally friendly invert emulsion drilling mud.

The effects of dissolved Sodium Chloride (NaCl) on well injectivity during CO2 storage into saline aquifers (2016)
Journal Article
Beinashor, R., Nourian, A., Nasr, G., & Enyi, G. (2016). The effects of dissolved Sodium Chloride (NaCl) on well injectivity during CO2 storage into saline aquifers. Journal of petroleum engineering & technology (Online), 6(2),

Saline aquifer formations seem to be promising candidates for carbon dioxide (CO2) storage due to their wide availability as well they have large storage capacity. Once CO2 is injected into saline aquifer variety of processes will take place, among o... Read More about The effects of dissolved Sodium Chloride (NaCl) on well injectivity during CO2 storage into saline aquifers.

50/50 oil-water ratio invert emulsion drilling mud using vegetable oil as continuous phase (2016)
Journal Article
Ihenacho, P., Burby, M., Nasr, G., & Enyi, G. (2016). 50/50 oil-water ratio invert emulsion drilling mud using vegetable oil as continuous phase

Formulation of a low oil-water ratio drilling mud with vegetable oil continuous phase without adversely affecting the mud rheology and stability has been a major challenge. A low oil-water ratio is beneficial in producing low fluid loss which is esse... Read More about 50/50 oil-water ratio invert emulsion drilling mud using vegetable oil as continuous phase.

Impact pressure distribution in flat fan nozzles for descaling oil wells (2015)
Presentation / Conference
Abbas, A., Nasr, G., Nourian, A., & Enyi, G. (2015, August). Impact pressure distribution in flat fan nozzles for descaling oil wells. Presented at 13th Triennial International Conference on Liquid Atomization and Spray Systems, Tainan, Taiwan

The suitability of High pressure nozzles in terms of impact upon targeted surfaces has indicated its effectiveness for the cleaning of oil production tubing scale, which has recently attract wider industrial applications considering its efficiency,... Read More about Impact pressure distribution in flat fan nozzles for descaling oil wells.

Integration of Nano CT and SEM in study of Marcellus Shale Heterogeneity (2015)
Journal Article
Amadi, F., Enyi, G., & Nasr, G. (2015). Integration of Nano CT and SEM in study of Marcellus Shale Heterogeneity. Journal of petroleum engineering & technology (Online), 5(3), 39-51

The increase in exploration and production in Shale gas reservoir, and few studies so far reported regarding the general topology of tight reservoir, it is now imperative to critically understand the complexities surrounding the geology of Shale rese... Read More about Integration of Nano CT and SEM in study of Marcellus Shale Heterogeneity.

Optimization of multi-zone unconventional (shale) gas reservoir using hydraulic fracturing technique (2015)
Journal Article
Amadi, F., Enyi, G., & Nasr, G. (2015). Optimization of multi-zone unconventional (shale) gas reservoir using hydraulic fracturing technique

Hydraulic fracturing is one of the most important stimulation techniques available to the petroleum engineer to extract hydrocarbons in tight gas sandstones. It allows more oil and gas production in tight reservoirs as compared to conventional means.... Read More about Optimization of multi-zone unconventional (shale) gas reservoir using hydraulic fracturing technique.