Mr Godpower Enyi's Outputs (29)

Mathematical Models for predicting CO2 Density and Viscosity for Enhanced Gas Recovery and Carbon Sequestration (2025)
Journal Article

There is limited work on mathematical correlations in place for predicting density and viscosity of supercritical carbon-dioxide (CO2), necessary for Enhanced Gas Recovery-Carbon Sequestration (EGR-CS) operations. In this work, three categories of ma... Read More about Mathematical Models for predicting CO2 Density and Viscosity for Enhanced Gas Recovery and Carbon Sequestration.

Model for Predicting Density and Viscosity of CO2 for Enhanced Gas Recovery and Carbon Sequestration in Depleted Gas Reservoir: A Case study of Niger-Delta Formation (2024)
Presentation / Conference Contribution

Flare Pollution Loads and Carbon-Dioxide Effect on Rainwater Acidity in Niger-Delta: A Review, Investigation and Model for Safe Living Quarter (2024)
Journal Article

Carbon-dioxide does not only affect climate change, but also contribute tremendously in acidification of rain water. Hazard identification and risk assessment are fundamental components of effective risk management, specifically in sensitive areas wh... Read More about Flare Pollution Loads and Carbon-Dioxide Effect on Rainwater Acidity in Niger-Delta: A Review, Investigation and Model for Safe Living Quarter.

Investigating the flow behaviour of CO2 and N2 in porous medium using core flooding experiment (2021)
Journal Article

Several researchers employed N2 to augment CH4 recovery efficiency and CO2 sequestration during the Enhanced Gas Recovery (EGR) process in consolidated rocks. To our knowledge, there has been limited data backing the reason why CO2 experienced a more... Read More about Investigating the flow behaviour of CO2 and N2 in porous medium using core flooding experiment.

The role of N2 as booter gas during Enhanced Gas Recovery by CO2 flooding in a porous medium (2021)
Journal Article

Most research on CO2 flooding is focusing on CO2 storage than CH4 recovery and mostly simulation-based. To our knowledge, there have been limited reported experimental on CO2 injections capable of unlocking a high amount of the residual methane due t... Read More about The role of N2 as booter gas during Enhanced Gas Recovery by CO2 flooding in a porous medium.

Enhanced oil recovery through integration of ultrasound and polymer flooding (2020)
Thesis
Hassan, K. Enhanced oil recovery through integration of ultrasound and polymer flooding. (Thesis). University of Salford

Initially, when an oil well is drilled the oil gushes to the surface at high pressure. However, with time the pressure declines leaving more than 50% of the oil trapped in the reservoir. Even with the introduction of current technologies, more than 4... Read More about Enhanced oil recovery through integration of ultrasound and polymer flooding.

Enhanced gas recovery by nitrogen injection : the effects of injection velocity during natural gas displacement in consolidated rocks (2020)
Journal Article

The choice of the flow velocity in EGR thus becomes important since higher injection rates could lead to premature
mixing of the fluids and lower injection rates generally provide longer resident times for the fluids in
contact and indirectly incre... Read More about Enhanced gas recovery by nitrogen injection : the effects of injection velocity during natural gas displacement in consolidated rocks.

Alternating N2 gas injection as a potential technique for enhanced gas recovery and CO2 storage in consolidated rocks : an experimental study (2020)
Journal Article

The promotion of enhanced gas recovery (EGR) and CO2 storage is still shrouded in contention, and is not well
accepted, due to the excessive in-situ CO2 mixing with the nascent natural gas. This adulterates the recovered
CH4 and thus, results in a... Read More about Alternating N2 gas injection as a potential technique for enhanced gas recovery and CO2 storage in consolidated rocks : an experimental study.

Enhancing the performance of Xanthan gum in water-based mud systems using an environmentally friendly biopolymer (2020)
Journal Article
Akpan, E., Enyi, G., & Nasr, G. (2020). Enhancing the performance of Xanthan gum in water-based mud systems using an environmentally friendly biopolymer. Journal of Petroleum Exploration and Production Technologies, 10, 1933-1948. https://doi.org/10.1007/s13202-020-00837-0

Xanthan gum is commonly used in drilling fluids to provide viscosity, solid suspension, and fluid-loss control. However, it is sensitive to high temperatures and not tolerant of field contaminants. This paper presents an experimental study on the eff... Read More about Enhancing the performance of Xanthan gum in water-based mud systems using an environmentally friendly biopolymer.

Flow characteristics through gas alternating gas injection during enhanced gas recovery (2019)
Presentation / Conference
Mohammed, N., Abbas, A., Enyi, G., & Nasr, G. (2019, October). Flow characteristics through gas alternating gas injection during enhanced gas recovery. Presented at SPE Gas & Oil Technology Showcase and Conference, Dubai, UAE

Gas and liquid flooding using carbon dioxide (CO2), nitrogen (N2), or brine solution have become one of the promising enhanced gas (EGR) and oil recovery (EOR) technologies for residual hydrocarbons (HCs) enhancement in conventional oil and gas reser... Read More about Flow characteristics through gas alternating gas injection during enhanced gas recovery.

Water-based drilling fluids for high-temperature applications and water-sensitive and dispersible shale formations (2019)
Journal Article

This study examines the effectiveness of sodium erythorbate, potassium formate, and polyethylene glycol for the formulation of high-performance water-based drilling fluids. High-performance water-based drilling fluids are environmentally-friendly, re... Read More about Water-based drilling fluids for high-temperature applications and water-sensitive and dispersible shale formations.

Stabilizing biopolymers in water-based drilling fluids at high temperature using antioxidants, a formate salt, and polyglycol (2018)
Journal Article

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

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.

Experimental investigation of methane-water and methane-brine IFT measurements using pendant drop (rising bubble) method (2018)
Journal Article

Gas hydrate formation involves low molecular gas mass transfer to a cage-like structure formed by water molecule under low temperature and high-pressure conditions. Gas hydrate is considered a problem if it develops along a pipeline. In order to solv... Read More about Experimental investigation of methane-water and methane-brine IFT measurements using pendant drop (rising bubble) method.

Economic evaluation of environmentally friendly vegetable oil-based invert emulsion (2017)
Journal Article

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.

The influence of temperature and pressure on surface tension and bubble diameter of methane (CH4) and Carbon dioxide (CO2) in water (2017)
Presentation / Conference Contribution

Surface tension is very important property in petroleum and gas operations. It provide an insight into the understanding most of multiphase fluids behaviour. In this experimental study, the surface tension of methane and carbon dioxide bubbles in a c... Read More about The influence of temperature and pressure on surface tension and bubble diameter of methane (CH4) and Carbon dioxide (CO2) in water.

Impact pressure distribution in flat fan nozzles for descaling oil wells (2016)
Journal Article
Abbas, A., Nasr, G., Nourian, A., & Enyi, G. (2016). Impact pressure distribution in flat fan nozzles for descaling oil wells. Journal of Energy and Power Engineering, 10(6), 352-357. https://doi.org/10.17265/1934-8975/2016.06.003

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 attracted wider industrial applications considering its efficiency... Read More about Impact pressure distribution in flat fan nozzles for descaling oil wells.

Utilization of egg yolk as a non-toxic emulsifier in environmentally friendly invert emulsion drilling mud (2016)
Journal Article

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.

50/50 oil-water ratio invert emulsion drilling mud using vegetable oil as continuous phase (2016)
Journal Article

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.

Inhibition performance of mild steel corrosion in the presence of Co2, HAc and MEG (2016)
Presentation / Conference Contribution

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.