Insights into Enhanced Oil Recovery by Polymer-Viscosity Reducing Surfactant Combination Flooding in Conventional Heavy Oil Reservoir

Chen, Yuqiu; He, Hong; Yu, Qingxu; Liu, Huan; Chen, Lijun; Ma, Xiaorui; Liu, Wenzheng

doi:10.1155/2021/7110414

Cited by 12 publications

(11 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The viscosity of the polymer solution is an important feature for mobility control. The polymer solution can improve water viscosity and decrease the water-oil mobility ratio, enhancing sweep efficiency [37]. The viscosity of CS and CS-g-PAM that gradually improved with the concentration of polymer solution are shown in Fig.…”

Section: Thickening Abilitymentioning

confidence: 93%

Synthesis of Cassava Starch-Grafted Polyacrylamide Hydrogel by Microwave-Assisted Method for Polymer Flooding

2022

View full text Add to dashboard Cite

Cassava starch-grafted polyacrylamide (CS-g-PAM) hydrogels were synthesized using a microwave-assisted method and K2O8S2 (KPS) as an initiator. In this study, we studied the influence of the amount of acrylamide and irradiation time on the properties of CS-g-PAM. The characterization of CS-g-PAM obtained was shown by Fourier-transform infrared (FTIR) and Scanning Electron Microscope (SEM) analysis. To predict the behavior of the samples under reservoir conditions, the properties of CS-g-PAM, such as swelling ratio, water-solubility, and viscosity were determined as a function of temperature, salt concentration, and aging time. The FTIR spectra and SEM analysis of the CS-g-PAM confirmed that the polyacrylamide chains were successfully grafted onto the cassava starch backbone. The results showed that the increasing amount of acrylamide and the longer irradiation time improved the properties of CS-g-PAM. Preparation of CS-g-PAM with 10 g of acrylamide and 180 s of irradiation time resulted in the highest grafting percentage and water solubility, which was 1565.53 and 96.06%, respectively. Its viscosity also exceeded 97% after 15 days of aging. The results showed that CS-g-PAM expressed properties such as good thickening, temperature resistance, and salt resistance according to reservoir conditions. This finding indicated that CS-g-PAM has good potential for oil recovery applications.

show abstract

Section: Thickening Abilitymentioning

confidence: 93%

Synthesis of Cassava Starch-Grafted Polyacrylamide Hydrogel by Microwave-Assisted Method for Polymer Flooding

2022

View full text Add to dashboard Cite

show abstract

“…Synthetic brine is made by dissolving NaCl powder with a concentration of 15,000 mg/L into aquadest and stir for 15 minutes [19]. Then add polymer powder with a concentration of each 200, 500, 1,000, and 2,000 mg/L into the brine and stir for 12 hours [20], [21]. The adsorption test in this study used a static method.…”

Section: Figure 3 Flowchart Of the Procedures Used In This Studymentioning

confidence: 99%

Effect of Sand Grain on Adsorption of Xanthan Gum and Polyacrylamide

Kurniadi

Fathaddin

Riswati

2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

Polymer flooding is an Enhanced oil recovery (EOR) method using chemicals, such as xanthan gum and polyacrylamide which are widely used in the field. Polymer flooding can improve the mobility of the injection fluid, but in the reservoir the polymer has an interaction with sand known as adsorption which causes some of the polymer to be bound to the surface of the pore of sand, so that it has an impact on the ineffectiveness of the injection. The purpose of this study want to determine and compare the effect of sand grain on the adsorption of xanthan gum and polyacrylamide polymer solutions. Based on the experiment results, it was found that the increase in adsorption was proportional to the increase in polymer concentration. From two polymers used, xanthan gum showed lower adsorption than polyacrylamide. Based on the sand grain, the adsorption that occurs is greater in the grain size for large sand compare small.

show abstract

“…By increasing the viscosity of the injection fluid, polymer injection can increase the sweeping efficiency thereby increasing oil recovery [12][13][14]. Oil recovery depends on microscopic and macroscopic displacement efficiency [15,16], mathematically it can be expressed as follows.…”

Section: Introductionmentioning

confidence: 99%

The Use of Natural Polymers to Enhance Oil Recovery

Fathaddin,

Maulida,

Hattu

et al. 2024

E3S Web Conf.

View full text Add to dashboard Cite

This paper reports a laboratory study on the use of natural polymers to increase oil recovery. The use of natural polymers compared to synthetic polymers is more economical due to their abundant availability, renewability, biodegradability, and non-toxicity to the environment as they do not use chemicals. The purpose of this research is to measure the aqueous solution stability test and recovery factor produced by natural polymers through core flooding tests. The natural polymers used are Shrimp Chitosan, Crab Chitosan, Cyclea Barbata Miers, Mesona Palustris, and Seaweed. The methods used in this research are aqueous solution stability test and core flooding test. The shrimp chitosan solution used had a concentration from 5,000; 10,000 and 15,000 ppm and 2 salinities between 10,000 and 20,000 ppm. The crab chitosan solution used had a concentration from 5,000; 10,000 and 15,000 ppm with 2 salinities between 10,000 and 20,000 ppm. The Cyclea barbata Miers solution used had a concentration from 1,500; 2,500 and 3,500 ppm and 2 salinities between 7,000 and 15,000 ppm. The Mesona Palustris solution used had a concentration from 500; 1,000 and 2,000 ppm and 3 salinities from 10,000; 15,000 and 20,000 ppm. The Seaweed solution used had a concentration from 1,000; 2,000 and 3,000 ppm and 3 salinities from 5,000; 10,000 and 15,000 ppm. Sandpack is used as a porous media for crab chitosan experiments, while sandstone core is used for Cyclea Barbata Miers and Mesona Palustris with crude oil 44°API. The aqueous solution stability test showed that all polymer solution samples were clear for various concentrations and salinities. Except for the solutions of Cyclea barbata Miers and Masona palustris which are greenish and blackish respectively. Transmittance for shrimp and crab chitosan solutions shows a value of more than 80%. This shows that natural polymers are compatible with brine. Flooding tests were carried out to measure oil recovery related to the use of natural polymers. The experimental results showed that the best additional oil recovery was 10.3% using crab chitosan solution injection. The chitosan solution used had a concentration of 15,000 ppm and a viscosity of 1,729 cp. We can conclude that the addition of polymer can improve recovery factor.

show abstract

Insights into Enhanced Oil Recovery by Polymer-Viscosity Reducing Surfactant Combination Flooding in Conventional Heavy Oil Reservoir

Cited by 12 publications

References 52 publications

Synthesis of Cassava Starch-Grafted Polyacrylamide Hydrogel by Microwave-Assisted Method for Polymer Flooding

Synthesis of Cassava Starch-Grafted Polyacrylamide Hydrogel by Microwave-Assisted Method for Polymer Flooding

Effect of Sand Grain on Adsorption of Xanthan Gum and Polyacrylamide

The Use of Natural Polymers to Enhance Oil Recovery

Contact Info

Product

Resources

About