scholarly journals EVOLUTION OF THE COLUMN FOULING PRODUCTION IN WELLS PRODUCING OIL END GAS: CASE STUDY

2014 ◽  
Vol 12 (24) ◽  
pp. 64-70
Author(s):  
Fernando Nunes DA SILVA ◽  
Jardel Dantas DA CUNHA ◽  
Andréa Francisca Fernandes BARBOSA ◽  
Djalma Ribeiro DA SILVA
Keyword(s):  
Formation Mechanism ◽  
Temperature Increase ◽  
Water Injection ◽  
Soxhlet Extraction ◽  
Oil Industry ◽  
Scale Formation ◽  
Injection Well ◽  
Extraction Techniques ◽  
Bicarbonate Ions

In the oil industry the problem of scale formation causes a lot of damage, including the reduction in the production of liquid and thus can be cited oil, also with the increased costs for the production there of. The study of scale is then of paramount importance for the understanding of their formation mechanism and the choice of method for prevention and / or removal. Soxhlet extraction techniques EFRX, XRD and SEM were used to characterize a sample collected in the column of producing a water injection well. Through the analysis of the results was identified scale ferruginous type which its formation is associated with the presence of corrosive agents; and carbonate type, and its formation influenced by the concentration of calcium and bicarbonate ions dissolved in the water , since such formation is common in wells which have a high content of these ions , which is also favored by decreasing the pressure and temperature increase reservoir

scholarly journals Calcium Carbonate Scale Formation, Prediction and Treatment (Case Study Gumry Oilfield-PDOC)

2013 ◽  
Vol 17 ◽  
pp. 47-58 ◽  
Author(s):  
A. Saifelnasr ◽  
M. Bakheit ◽  
K. Kamal ◽  
A. Lila
Keyword(s):  
Calcium Carbonate ◽  
Produced Water ◽  
Saturation Index ◽  
Water Injection ◽  
Stability Index ◽  
Scale Formation ◽  
Injection Process ◽  
Langelier Saturation Index ◽  
Calcium Carbonate Scale

In this study the predictions and probabilities of calcium carbonate scale formation and corrosion occurrence inside Gumry Field Process Facilities (GFPF) and produced water injection process units (PWTP) was carried out. This was done calculating the Langelier Saturation Index (LSI), Ryznar Stability Index (RSI), Puckorius Scaling Index (PSI). The samples results for LSI index and PSI index were compared and found that all samples under threaten of calcium carbonate scale. The samples results for RSI index and found that all samples under formation of heavy calcium carbonate scale. Special excel computer program was designed to calculate the (LSI, RSI, PSI). The scale was cleaned and removed by 10% diluted hydrochloric acid and commercial scale inhibitor.

Water Injection Well Performance and Fracture Propagation in a Channel Sand Reservoir: An Offshore Ghana Case Study

2019 ◽  
Author(s):  
Jongsoo Hwang ◽  
Prateek Bhardwaj ◽  
Mukul Sharma ◽  
Sekhar Sathyamoorthy ◽  
Kwarteng Amaning ◽  
...  
Keyword(s):  
Water Injection ◽  
Fracture Propagation ◽  
Injection Well ◽  
Well Performance

A Case Study of Water Injection Well Stimulation in a Low Permeability Oil Reservoir

2016 ◽  
Author(s):  
J. R. Shaoul ◽  
W. J. Spitzer ◽  
S. Fekkai ◽  
L. Sepulveda
Keyword(s):  
Water Injection ◽  
Injection Well ◽  
Low Permeability ◽  
Oil Reservoir ◽  
Well Stimulation

scholarly journals Food Bioactive Compounds and Emerging Techniques for Their Extraction: Polyphenols as a Case Study

Foods ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 37 ◽  
Author(s):  
José S. Câmara ◽  
Bianca R. Albuquerque ◽  
Joselin Aguiar ◽  
Rúbia C. G. Corrêa ◽  
João L. Gonçalves ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Chemical Structure ◽  
Experimental Studies ◽  
Analytical Techniques ◽  
Convincing Evidence ◽  
Protective Effects ◽  
Extraction Techniques ◽  
Biological Impact ◽  
Preventive Effects

Experimental studies have provided convincing evidence that food bioactive compounds (FBCs) have a positive biological impact on human health, exerting protective effects against non-communicable diseases (NCD) including cancer and cardiovascular (CVDs), metabolic, and neurodegenerative disorders (NDDs). These benefits have been associated with the presence of secondary metabolites, namely polyphenols, glucosinolates, carotenoids, terpenoids, alkaloids, saponins, vitamins, and fibres, among others, derived from their antioxidant, antiatherogenic, anti-inflammatory, antimicrobial, antithrombotic, cardioprotective, and vasodilator properties. Polyphenols as one of the most abundant classes of bioactive compounds present in plant-based foods emerge as a promising approach for the development of efficacious preventive agents against NCDs with reduced side effects. The aim of this review is to present comprehensive and deep insights into the potential of polyphenols, from their chemical structure classification and biosynthesis to preventive effects on NCDs, namely cancer, CVDs, and NDDS. The challenge of polyphenols bioavailability and bioaccessibility will be explored in addition to useful industrial and environmental applications. Advanced and emerging extraction techniques will be highlighted and the high-resolution analytical techniques used for FBCs characterization, identification, and quantification will be considered.

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