Extra-Heavy Crude Oil Downhole Upgrading Process using Hydrogen Donors under Steam Injection Conditions

2001 ◽  
Author(s):  
Cesar Ovalles ◽  
Carlos Vallejos ◽  
Tito Vasquez ◽  
Jorge Martinis ◽  
Alfredo Perez-Perez ◽  
...  
Keyword(s):  
Crude Oil ◽  
Steam Injection ◽  
Heavy Crude Oil ◽  
Hydrogen Donors ◽  
Heavy Crude

Downhole Upgrading of Extra-heavy Crude Oil Using Hydrogen Donors and Methane Under Steam Injection Conditions

2003 ◽  
Vol 21 (1-2) ◽  
pp. 255-274 ◽  
Author(s):  
César Ovalles ◽  
Carlos Vallejos ◽  
Tito Vasquez ◽  
Iraima Rojas ◽  
Ursula Ehrman ◽  
...  
Keyword(s):  
Crude Oil ◽  
Steam Injection ◽  
Heavy Crude Oil ◽  
Hydrogen Donors ◽  
Heavy Crude

scholarly journals Screening of waterflooding, hot waterflooding and steam injection for extra heavy crude oil production from Tatarstan oilfield

2021 ◽  
Vol 931 (1) ◽  
pp. 012002
Author(s):  
A Pituganova ◽  
I Minkhanov ◽  
A Bolotov ◽  
M Varfolomeev
Keyword(s):  
Crude Oil ◽  
Oil Recovery ◽  
Water Injection ◽  
Oil Production ◽  
Steam Injection ◽  
Hot Water ◽  
Heavy Crude Oil ◽  
Oil Viscosity ◽  
Heavy Crude ◽  
Bulk Model

Abstract Thermal enhanced oil recovery techniques, especially steam injection, are the most successful techniques for extra heavy crude oil reservoirs. Steam injection and its variations are based on the decrease in oil viscosity with increasing temperature. The main objective of this study is the development of advanced methods for the production of extra heavy crude oil in the oilfield of the Republic of Tatarstan. The filtration experiment was carried out on a bulk model of non-extracted core under reservoir conditions. The experiment involves the injection of slugs of fresh water, hot water and steam. At the stage of water injection, no oil production was observed while during steam injection recovery factor (RF) achieved 13.4 % indicating that fraction of immobile oil and non-vaporizing residual components is high and needed to be recovered by steam assisted EORs.

Steam Injection experiments for Recovery of Heavy Crude oil of some Iranian Field

2005 ◽  
Author(s):  
Alireza Tabatabaei ◽  
Sirus Shafiei ◽  
Saeid Rajabzadeh ◽  
Amir Naser Haghlesan
Keyword(s):  
Crude Oil ◽  
Steam Injection ◽  
Heavy Crude Oil ◽  
Heavy Crude

scholarly journals Effect of Steam Quality on Extra-Heavy Crude Oil Upgrading and Oil Recovery Assisted with PdO and NiO-Functionalized Al2O3 Nanoparticles

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1009
Author(s):  
Luisana Cardona ◽  
Oscar E. Medina ◽  
Santiago Céspedes ◽  
Sergio H. Lopera ◽  
Farid B. Cortés ◽  
...  
Keyword(s):  
Crude Oil ◽  
Oil Recovery ◽  
Mass Fraction ◽  
Steam Injection ◽  
Heavy Crude Oil ◽  
Al2o3 Nanoparticles ◽  
Steam Quality ◽  
Oil Viscosity ◽  
Overburden Pressure ◽  
Heavy Crude

This work focuses on evaluating the effect of the steam quality on the upgrading and recovering extra-heavy crude oil in the presence and absence of two nanofluids. The nanofluids AlNi1 and AlNi1Pd1 consist of 500 mg·L−1 of alumina doped with 1.0% in mass fraction of Ni (AlNi1) and alumina doped with 1.0% in mass fraction of Ni and Pd (AlNi1Pd1), respectively, and 1000 mg·L−1 of tween 80 surfactant. Displacement tests are done in different stages, including (i) basic characterization, (ii) waterflooding, (iii) steam injection at 0.5 quality, (iv) steam injection at 1.0 quality, (v) batch injection of nanofluids, and (vi) steam injection after nanofluid injection at 0.5 and 1.0 qualities. The steam injection is realized at 210 °C, the reservoir temperature is fixed at 80 °C, and pore and overburden pressure at 1.03 MPa (150 psi) and 5.51 MPa (800 psi), respectively. After the steam injection at 0.5 and 1.0 quality, oil recovery is increased 3.0% and 7.0%, respectively, regarding the waterflooding stage, and no significant upgrade in crude oil is observed. Then, during the steam injection with nanoparticles, the AlNi1 and AlNi1Pd1 increase the oil recovery by 20.0% and 13.0% at 0.5 steam quality. Meanwhile, when steam is injected at 1.0 quality for both nanoparticles evaluated, no incremental oil is produced. The crude oil is highly upgraded for the AlNi1Pd1 system, reducing oil viscosity 99%, increasing the American Petroleum Institute (API)° from 6.9° to 13.3°, and reducing asphaltene content 50% at 0.5 quality. It is expected that this work will eventually help understand the appropriate conditions in which nanoparticles should be injected in a steam injection process to improve its efficiency in terms of oil recovery and crude oil quality.

Heavy Crude Oil Recovery Enhancement and In-Situ Upgrading During Steam Injection Using Ni-Co-Mo Dispersed Catalyst

2016 ◽  
Author(s):  
S. M. Shuwa ◽  
R. S. Al-Hajri ◽  
A. Mohsenzadeh ◽  
Y. M. Al-Waheibi ◽  
B. Y. Jibril
Keyword(s):  
Crude Oil ◽  
Oil Recovery ◽  
Steam Injection ◽  
Heavy Crude Oil ◽  
Heavy Crude
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