Experimental Investigation of Synergistic Enhanced Oil Recovery by Infill Well Pattern and Chemical Flooding After Polymer Flooding [PDF]
GelsWell pattern infill adjustment combined with chemical flooding is an important technical approach for significantly improving oil recovery in high-water-cut reservoirs after polymer flooding.
Xianmin Zhang +5 more
doaj +3 more sources
The influence of permeability and heterogeneity on chemical flooding efficiency and remaining oil distribution-based on NMR displacement imaging. [PDF]
Sci Rep, 2023 To investigate the impact of permeability and heterogeneity on oil displacement efficiency and remaining oil distribution of chemical flooding, three groups of high and ultrahigh permeability core samples from an ultrahigh water-cut oilfield in western ...
Zhang Y, Gai C, Song B, Jiang J, Wang Z.
europepmc +2 more sources
Effect Evaluation and Action Mechanism Analysis of "Profile Control + Plugging Removal" after Chemical Flooding. [PDF]
Gels, 2022 The existing plugging removal operation in JZ9-3 oilfield has the disadvantages of small amount of plugging remover, fast injection speed, and short construction time.
Gao J +7 more
europepmc +2 more sources
Synthesis and Study of a New Type of Nonanionic Demulsifier for Chemical Flooding Emulsion Demulsification. [PDF]
ACS Omega, 2021 The application of chemical flooding improves the stability of the produced emulsion, which reduces the demulsification efficiency of conventional demulsifiers.
Wei L +5 more
europepmc +2 more sources
Application of horizontal well discontinuous chemical flooding technology in Bohai oilfield
Frontiers in Energy Research, 2023 Discontinuous chemical flooding technology of horizontal wells is a long-term development mechanism of horizontal wells established by combining and applying various oil displacement systems in different stages.
Zhang Jian +11 more
doaj +2 more sources
A review of crude oil emulsification and multiphase flows in chemical flooding
Energy Science & Engineering, 2023 Chemical flooding has become an important method to enhance oil recovery in high‐water cut reservoirs. Crude oil emulsification often occurs during chemical flooding, and it plays a very positive role in increasing crude oil production.
Yazhou Zhou +4 more
doaj +2 more sources
Adaptability Study of Hot Water Chemical Flooding in Offshore Heavy Oilfields
Geofluids, 2022 As a new heavy oil development technology, hot water chemistry flooding has great potential in offshore heavy oil fields development. In this paper, the adaptability of hot water chemical flooding was studied based on the typical model of offshore heavy ...
Zenghua Zhang +6 more
doaj +2 more sources
Effect of Reservoir Heterogeneity on Polymer-Surfactant Binary Chemical Flooding Efficiency in Conglomerate Reservoirs. [PDF]
Polymers (Basel)Reservoir heterogeneity significantly affects reservoir flooding efficiency and the formation and distribution of residual oil. As an effective method for enhancing recovery, polymer–surfactant (SP) flooding has a complex mechanism of action in ...
Lv J +6 more
europepmc +2 more sources
Experimental Study on Enhanced Oil Recovery Method in Tahe High-Temperature and High-Salinity Channel Sand Reservoir: Combination of Profile Control and Chemical Flooding. [PDF]
ACS Omega, 2020 On account of the intralayer and interlayer heterogeneity, high temperature (110 °C), and high salinity (224,919 mg/L) of Tahe channel sand reservoir, single profile control or chemical flooding cannot greatly enhanced oil recovery.
Jin FY, Li QH, He Y, Luo Q, Pu WF.
europepmc +2 more sources
A Review of the Seepage Mechanisms of Heavy Oil Emulsions during Chemical Flooding
Energies, 2022 Chemical flooding plays an important role in enhancing oil recovery due to many reasons, including the viscosity-increment effect of polymer, wettability alteration effect of surfactant, and the formation of emulsions, which have been known to ...
Xiuyu Wang +4 more
doaj +2 more sources