Results 21 to 30 of about 4,206 (242)
Gas-wetting alteration is a versatile and effective approach for alleviating liquid-blockage that occurs when the wellbore pressure of a gas-condensate reservoir drops below the dew point. Fluorochemicals are of growing interest in gas-wetting alteration
Jiafeng Jin +9 more
doaj +1 more source
Recent studies showed the high potential of nanofluids as an enhanced oil recovery (EOR) agent in oil reservoirs. This study aimed to investigate the effects of salts and ions, the salinity of aqueous solution, total dissolved solids (TDS), scale ...
Masoud Bijani +2 more
doaj +1 more source
A critical review of carbonate reservoir wettability modification during low salinity waterflooding
The nature of carbonate reservoirs promotes the adsorption of oil onto the rock surface hence making oil recovery a challenge even with the interventions of varied chemical EOR methods.
Perekaboere Ivy Sagbana +2 more
doaj +1 more source
Surfactant-Induced Wettability Alteration
Contact of surfactant solution onto rock surface has an important impact on the wettability alteration of the rock. This phenomenon has widely received attention of researchers on the field of EOR (enhanced oil recovery), at which surfactant solution basically has been used as the main injection fluid. However, there has not yet come up with conclusive
openaire +1 more source
A Critical Review of Wettability Alteration of Retrograde Gas Condensate Reservoirs Using Nanoparticles [PDF]
Condensate and liquid blockage is a serious problem in gas condensate reservoirs as it reduces gas production. There are many methods to solve this problem, however, most of them are temporary or expensive.
Yahya Sanjoory, Mojtaba Rahimi
doaj +1 more source
Experimental Investigation of the effect ions concentration, aging temperature and pH on Wettability alteration Process in Carbonate Rocks by Contact Angle Measurement [PDF]
Naturally fractured carbonate reservoirs have very low oil recovery efficiency owing to their wettability and tightness of matrix. Recovery efficiency can be considerably improved by changing reservoir rock wettability from oil-wetting to water-wetting ...
Saeb Ahmadi +4 more
doaj +1 more source
The reservoir rock ismade up of differentminerals which contribute to the overall formation wettability. These minerals in their natural state differ in chemistry and structure, and thus behave differently in an environment of varying composition and ...
Isah Mohammed +6 more
doaj +1 more source
Numerical study of low salinity water flooding for enhancing oil recovery in sandstone reservoirs by coupling fluid flow equations with geochemical reactions of ion exchange and calcite dissolution [PDF]
Low salinity water (LSW) flooding is one of the emerging EOR methods which has recently attracted lots of attention. Wettability alteration from oil-wet to water-wet triggered by ion exchange between low salinity water and rock surface is one of the ...
Serveh Naderi, Mohammad Simjoo
doaj +1 more source
Polymer flooding, as one of the Enhanced Oil Recovery (EOR) methods, has been adopted in many oilfields in China and some other countries. Over 50% oil remains undeveloped in many oil reservoirs after polymer flooding.
Li Kewen +3 more
doaj +1 more source
Molecular dynamics simulation of surfactant induced wettability alteration of shale reservoirs
Shale oil has recently received considerable attention as a promising energy source due to its substantial reserves. However, the recovery of shale oil presents numerous challenges due to the low-porosity and low-permeability characteristics of shale ...
Debin Kong +5 more
doaj +1 more source

