New Insights on Chemical EOR Processes for Heavy Oil

2014 ◽  
Author(s):  
Sabrina Hocine ◽  
Alisson Magnan ◽  
Guillaume Degre ◽  
David Rousseau ◽  
Nicolas Rousseau
Keyword(s):  
Heavy Oil ◽  
Chemical Eor ◽  
Eor Processes

Simulation of Chemical EOR Processes for the Ratqa Lower Fars Heavy Oil Field in Kuwait: Multi-Scenario Results and Discussions

2016 ◽  
Author(s):  
M. T. Al-Murayri ◽  
A. A. Hassan ◽  
N. M. Al-Tameemi ◽  
R. G. Lara ◽  
A. Al-Sane ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Oil Field ◽  
Chemical Eor ◽  
Eor Processes

A Feasibility Study of Hybrid Thermal and Chemical EOR Methods in a Low-Permeability Carbonate Heavy Oil Reservoir with Strong Aquifer Drive

2018 ◽  
Author(s):  
Mohammed Taha Al-Murayri ◽  
Eman Hadad Fadli ◽  
Fawziya Mohammad Al-Shati ◽  
Ali Qubian ◽  
Zhitao Li ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Heavy Oil ◽  
Low Permeability ◽  
Oil Reservoir ◽  
Chemical Eor ◽  
Heavy Oil Reservoir

scholarly journals Surfactant-Polymer Interactions in a Combined Enhanced Oil Recovery Flooding

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6520
Author(s):  
Pablo Druetta ◽  
Francesco Picchioni
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Combined Processes ◽  
Sweep Efficiency ◽  
Two Phase ◽  
Chemical Agents ◽  
Chemical Eor ◽  
Eor Processes ◽  
Adsorption Rates ◽  
Polymer Interaction

The traditional Enhanced Oil Recovery (EOR) processes allow improving the performance of mature oilfields after waterflooding projects. Chemical EOR processes modify different physical properties of the fluids and/or the rock in order to mobilize the oil that remains trapped. Furthermore, combined processes have been proposed to improve the performance, using the properties and synergy of the chemical agents. This paper presents a novel simulator developed for a combined surfactant/polymer flooding in EOR processes. It studies the flow of a two-phase, five-component system (aqueous and organic phases with water, petroleum, surfactant, polymer and salt) in porous media. Polymer and surfactant together affect each other’s interfacial and rheological properties as well as the adsorption rates. This is known in the industry as Surfactant-Polymer Interaction (SPI). The simulations showed that optimum results occur when both chemical agents are injected overlapped, with the polymer in the first place. This procedure decreases the surfactant’s adsorption rates, rendering higher recovery factors. The presence of the salt as fifth component slightly modifies the adsorption rates of both polymer and surfactant, but its influence on the phase behavior allows increasing the surfactant’s sweep efficiency.

Implementation of Chemical EOR as Huff and Puff to Improve Oil Recovery for Heavy Oil Field by Chemical Treatment SEMAR Cast Study Bamboo Oil Field

2016 ◽  
Author(s):  
Ali Farog ◽  
Haytham A.Mustafa ◽  
Enas Mukhtar ◽  
Husham Elblaoula ◽  
Badreldin A. Yassin ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Heavy Oil ◽  
Chemical Treatment ◽  
Oil Field ◽  
Chemical Eor

CT-Scan Monitoring of Combined Chemical EOR Processes in Fractured Carbonate Cores

2016 ◽  
Author(s):  
E. Rosenberg ◽  
M. Robin ◽  
B. Bourbiaux ◽  
M. Chabert ◽  
E. Chevallier ◽  
...  
Keyword(s):  
Ct Scan ◽  
Fractured Carbonate ◽  
Chemical Eor ◽  
Carbonate Cores ◽  
Eor Processes

scholarly journals Gas Pressure Cycling (GPC) and Solvent-Assisted Gas Pressure Cycling (SA-GPC) Enhanced Oil Recovery Processes in a Thin Heavy Oil Reservoir

Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5047
Author(s):  
Olusegun Ojumoola ◽  
Hongze Ma ◽  
Yongan Gu
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Gas Pressure ◽  
Oil Viscosity ◽  
Step Size ◽  
Foamy Oil ◽  
Pressure Cycling ◽  
Eor Processes ◽  
Solvent Trapping

In this paper, gas pressure cycling (GPC) and solvent-assisted gas pressure cycling (SA-GPC) were developed as two new and effective enhanced oil recovery (EOR) processes. Eight coreflood tests were conducted by using a 2-D rectangular sandpacked physical model with a one or two-well configuration. More specifically, two cyclic solvent injection (CSI), three GPC, and three SA-GPC tests were conducted after the primary production, whose pressure was declined in steps from Pi = 3.0 MPa to Pf = 0.2 MPa. It was found that the CSI tests had poor performances because of the known CSI technical shortcomings and an additional technical issue of solvent trapping found in this study. Quick heavy oil viscosity regainment resulted in the solvent-trapping zone. In contrast, C3H8-GPC test at a pressure depletion step size of ∆PEOR = 0.5 MPa and C3H8-SA-CO2-GPC test at ∆PEOR = 1.0 MPa had the highest total heavy oil recovery factors (RFs) of 41.9% and 36.6% of the original oil-in-place (OOIP) among the two respective series of GPC and SA-GPC tests. The better performances of these two tests than C3H8- or CO2-CSI test were attributed to the effective displacement of the foamy oil toward the producer in the two-well configuration. Thus the back-and-forth movements of the foamy oil in CSI test in the one-well configuration were eliminated in these GPC and SA-GPC tests. Furthermore, C3H8-GPC test outperformed C3H8-SA-CO2-GPC test in terms of the heavy oil RF and cumulative gas-oil ratio (cGOR) because of the formation of stronger foamy-oil flow and the absence of CO2, which reduced the solubility of C3H8 in the heavy oil in the latter test. In summary, different solvent-based EOR processes were ranked based on the heavy oil RFs as follows: C3H8-GPC > C3H8-SA-CO2-GPC > CO2-GPC > C3H8-CSI > CO2-CSI.

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