oil recovery
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Fuel ◽  
2022 ◽  
Vol 312 ◽  
pp. 122941
Nidhal Badrouchi ◽  
Hui Pu ◽  
Steven Smith ◽  
Foued Badrouchi

2022 ◽  
Vol 8 ◽  
pp. 1013-1025
Zeta Nur Muhammad Yahya ◽  
Nadya Puteri Puspaseruni ◽  
Rani Kurnia ◽  
Deana Wahyuningrum ◽  
Irma Mulyani ◽  

Fuel ◽  
2022 ◽  
Vol 314 ◽  
pp. 123115
Svetlana Rudyk ◽  
Usman Taura ◽  
Mohammed Al-Jahwary

Fuel ◽  
2022 ◽  
Vol 312 ◽  
pp. 122867
Omid Tavakkoli ◽  
Hesam Kamyab ◽  
Mahdi Shariati ◽  
Abdeliazim Mustafa Mohamed ◽  
Radzuan Junin

Fuel ◽  
2022 ◽  
Vol 310 ◽  
pp. 122299
Cláudia K.B. de Vasconcelos ◽  
Felipe S. Medeiros ◽  
Bruna R.S. Diniz ◽  
Marcelo M. Viana ◽  
Vinicius Caliman ◽  

Energy ◽  
2022 ◽  
Vol 240 ◽  
pp. 122802
Xiao-Tong Wang ◽  
Bin Liu ◽  
Xi-Zhe Li ◽  
Wei Lin ◽  
Dong-An Li ◽  
Waxy Oil ◽  

2022 ◽  
Vol 14 (2) ◽  
pp. 986
Donatus Ephraim Edem ◽  
Muhammad Kabir Abba ◽  
Amir Nourian ◽  
Meisam Babaie ◽  
Zainab Naeem

Salt precipitation during CO2 storage in deep saline aquifers can have severe consequences on injectivity during carbon storage. Extensive studies have been carried out on CO2 solubility with individual or mixed salt solutions; however, to the best of the authors’ knowledge, there is no substantial study to consider pressure decay rate as a function of CO2 solubility in brine, and the range of brine concentration for effective CO2 storage. This study presents an experimental core flooding of the Bentheimer sandstone sample under simulated reservoir conditions to examine the effect of four different types of brine at a various ranges of salt concentration (5 to 25 wt.%) on CO2 storage. Results indicate that porosity and permeability reduction, as well as salt precipitation, is higher in divalent brines. It is also found that, at 10 to 20 wt.% brine concentrations in both monovalent and divalent brines, a substantial volume of CO2 is sequestered, which indicates the optimum concentration ranges for storage purposes. Hence, the magnitude of CO2 injectivity impairment depends on both the concentration and type of salt species. The findings from this study are directly relevant to CO2 sequestration in deep saline aquifers as well as screening criteria for carbon storage with enhanced gas and oil recovery processes.

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 534
Fateh Bouchaala ◽  
Mohammed Y. Ali ◽  
Jun Matsushima ◽  
Youcef Bouzidi ◽  
Mohammed S. Jouini ◽  

Previous studies performed in Abu Dhabi oilfields, United Arab Emirates, revealed the direct link of seismic wave attenuation to petrophysical properties of rocks. However, all those studies were based on zero offset VSP data, which limits the attenuation estimation at one location only. This is due to the difficulty of estimating attenuation from 3D seismic data, especially in carbonate rocks. To overcome this difficulty, we developed a workflow based on the centroid frequency shift method and Gabor transform which is optimized by using VSP data. The workflow was applied on 3D Ocean Bottom Cable seismic data. Distinct attenuation anomalies were observed in highly heterogeneous and saturated zones, such as the reservoirs and aquifers. Scattering shows significant contribution in attenuation anomalies, which is unusual in sandstones. This is due to the complex texture and heterogeneous nature of carbonate rocks. Furthermore, attenuation mechanisms such as frictional relative movement between fluids and solid grains, are most likely other important causes of attenuation anomalies. The slight lateral variation of attenuation reflects the lateral homogeneous stratigraphy of the oilfield. The results demonstrate the potential of seismic wave attenuation for delineating heterogeneous zones with high fluid content, which can substantially help for enhancing oil recovery.

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