Impregnation of carbonate rock by deasphalted oil with the use of a supercritical fluid impregnation process

Гумеров, Ф. М.; Фарахов, М. И.; Khayrutdinov, Vener F.; Akhmetzyanov, Talgat R.; Габитов, Ф. Р.; Каменева, Е. Е.

doi:10.1080/10916466.2016.1249879

Cited by 3 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Increasing the power of solvents increases the yield of recovered DAO by allowing more resins and aromatic components of the feedstock to remain in the DAO product. Herein, we used prefractionation (PF) and SDA processes to generate two types of DAO products to stabilize colloidal asphaltene in the oil phase and increase reservoir oil recovery. − …”

Section: Introductionmentioning

confidence: 99%

“…The DAO refining process is the most efficient solvent-extracting option for recovering higher value products from residues’ feedstocks. DAOs are excellent feedstocks for fluid catalytic crackers and hydrocracker units. − …”

Section: Introductionmentioning

confidence: 99%

“…Herein, we used prefractionation (PF) and SDA processes to generate two types of DAO products to stabilize colloidal asphaltene in the oil phase and increase reservoir oil recovery. 31 − 33 …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Asphaltene Remediation and Improved Oil Recovery by Advanced Solvent Deasphalting Technology

Alkafeef

Al-Marri

2023

ACS Omega

View full text Add to dashboard Cite

Resin molecules play a crucial role in the stability of colloidal asphaltene particles in petroleum reservoirs. De-stabilization of the asphaltene/resin interaction due to changes in thermodynamic parameters can cause asphaltene precipitation, thus leading to petroleum field problems such as decreased in situ permeability, as well as severe plugging problems in production facilities. One remedial technology used in the oil industry involves developing synthetic resins with enhanced chemical potential to increase the stability of asphaltene in the oil phase. However, accurately predicting what synthetic resin structures are compatible with asphaltenes in this context can be difficult and ineffective. Here, we introduce a method that enhances the stability of colloidal asphaltene in petroleum fluid by increasing the concentrations of natural-state oil resins and increases reservoir oil recovery by increasing the oil’s aromatic power solvency. The stability of colloidal asphaltene and improvements in oil reservoir recovery were investigated by using an oil prefractionation process and a solvent deasphalting technology based on the residuum oil supercritical extraction process to develop three types of deasphalted oils derived from Kuwait Marrat oil. Using these methods, we found that resin concentration by volume in Marrat oil increased with the removal of more oil fractions. Asphaltene stability in the oil phase was strongly influenced by resin concentration. The deasphalted oils’ aromatic power solvency increased the oil reservoir permeability by twofold. No formation damage was observed for all DAO products in core flooding tests.

show abstract

Section: Introductionmentioning

confidence: 99%