In situ combustion methods: Applicability to heavy oil reservoirs in the Niger Delta

Ossai, Patrick Godwin Oyindobra; Ohia, Nnaemeka Princewill; Obah, Boniface; Duru, Ugochukwu Ilozurike

doi:10.1080/10916466.2016.1247172

Cited by 2 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Revival of interest in the ISC method has been attained due to some commercial success and considerable technological improvements in recent years. () A combustion process in porous medium is quite complicated with uncertainties mostly dependent on stability and propagation of combustion front …”

Section: Introductionmentioning

confidence: 99%

“…7 Revival of interest in the ISC method has been attained due to some commercial success and considerable technological improvements in recent years. 8,9 A combustion process in porous medium is quite complicated with uncertainties mostly dependent on stability and propagation of combustion front. 10 Three groups of oxidation reactions during ISC processes have been identified by researchers and accepted universally, namely, high-temperature oxidation (HTO), pyrolysis, and low-temperature oxidation (LTO).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced in situ combustion of heavy crude oil by nickel oxide nanoparticles

2019

View full text Add to dashboard Cite

Summary Nickel oxide nanoparticles were synthesized by microemulsion method and characterized by powder X‐ray diffraction, dynamic light scattering, and scanning electron microscopy. Thermal analyses were performed to identify the influence of nickel oxide nanoparticles on the in situ combustion of Liaohe heavy oil. Low‐temperature oxidation and coking process were investigated by analysing the effluent gases and the fractions of saturates, aromatics, resins, and asphaltenes. Combustion tube tests were also conducted to evaluate the catalytic performance of nickel oxide nanoparticles. Compared with the runs without catalysts, the effective activation energies were reduced by 4.22%, 20.57%, and 35.75% in terms of low‐temperature oxidation, pyrolysis, and high‐temperature oxidation, respectively. The reduction in O2 fraction and the increase in CO2 and O2 uptake were also confirmed. The overall trend presented the increase of saturates and aromatics fraction and the decline of resins and asphaltenes fraction while temperature was increased during low‐temperature oxidation. Adding nickel oxide nanoparticles led to the reduction in the fuel deposit during pyrolysis. Compared with the base combustion tube runs, combustion time in catalytic experiment was shortened by 12.1%, combustion front movement was accelerated by 9.1%, oil recovery was enhanced by 4.0%, and oil viscosity was reduced by 61.2%.

show abstract

Section: Introductionmentioning

confidence: 99%