This study presents a systematic modeling approach for examining the efficiency of MEOR process based on in situ selective plugging by bacterial biopolymer production and optimization nutrient injection strategy to yield maximum oil recovery. focuses dextran that is generated Leuconostoc mesenteroides. Bacterial growth generation were described stoichiometric equation kinetic reactions using batch model simulation. Based parameters permeability reduction obtained from sandpack model, was...

By incorporating a temperature-dependent biokinetic and thermal model, the novel method, cold-water microbial enhanced oil recovery (MEOR), was developed under nonisothermal conditions. The suggested model characterized growth for Bacillus subtilis (microbe) Surfactin (biosurfactant) that were calibrated confirmed against experimental results. Several parameters obtained within approximately 2% error using cardinal temperature According to parameters, examination conducted with several...

Dimethyl ether (DME) is a compound first introduced by Shell as chemical solvent for enhanced oil recovery (EOR). This study aims to investigate the efficiency of EOR using minimum miscible pressure (MMP) and viscous gravity number when mixed CO2 DME injected. Adding water-alternating-gas process reduces MMP number. Reduction in results conditions at lower pressures, which has favorable effect on swelling viscosity reduction, leading improved mobility oil. In addition, decreases, increasing...

The effective management of drinking water sources is essential not only for maintaining their quality but also the efficient operation treatment plants. A decline in reservoirs can result increased operational costs and compromise reliability safety treated water. In this study, a deep learning model, long short-term memory (LSTM) algorithm, was employed to predict identify an optimal intake layer across various seasons years Juam Lake, Korea. comprehensive investigation conducted...

The microbial enhanced oil recovery (MEOR) method is an eco-friendly and economical alternative technology. technology involves a variety of uncertainties, its success depends on controlling growth metabolism. Though few numerical studies have been carried out to reduce the no attempt has made consider temperature, pressure, salinity in integrated manner. In this study, new modeling incorporating these environmental impacts was proposed, MEOR analysis performed. As result, accurate possible...

Water-alternating-gas (WAG) method provides superior mobility control of CO 2 and improves sweep efficiency. However, WAG process has some problems in highly viscous oil reservoir such as gravity overriding poor ratio. To examine the applicability carbon dioxide to recover from heterogeneous reservoirs, this study suggests polymer-alternating-gas (PAG) process. The involves a combination polymer flooding injection. In numerical model, high viscosity heterogeneity are main challenges. confirm...

The addition of LPG to the CO 2 stream leads minimum miscible pressure (MMP) reduction that causes more oil swelling and interfacial tension compared EOR, resulting in improved recovery. Numerical study based on compositional simulation has been performed examine injectivity efficiency transport behavior water-alternating -LPG EOR. Based oil, , prices, optimum concentration composition were designed for different wettability conditions. Results from this indicate how injected mole fraction...

CO2 flooding has been widespread as one of the effective enhanced oil recovery methods by swelling and viscosity reduction. In spite efficiencies, improvement falls short expectation, especially for immiscible because unswept zone injected still exists at bottom reservoir owing to gravity overriding phenomenon. Gas-assisted drainage (GAGD) applied use conversely improve carbon capture sequestration efficiency. During GAGD, area swept is affected greatly injector length producer well...

Abstract Conventional carbonated water injection (CWI) induces oil swelling and reduction of viscosity density. The CO2 solubility in is a key factor to determine these effects sensitive pressure, temperature, salinity. CWI has another aspect storage due trapping mechanism. Low saline favorable condition solubilize into brine salting-out phenomenon. As well, the low (LSWI) potential enhance recovery originated from wettability modification carbonate reservoir. In terms geochemical aspect,...

The minimum miscibility pressure (MMP) determines the main mechanism of CO 2 flooding, which is either an immiscible or miscible process. This paper examines recovery improvements flooding in terms both injection temperature and solvent composition. results show that a lower LPG (liquefied petroleum gas) mixture can considerably improve oil due to reduced MMP swept area caused by injected solvent. For pure at reservoir temperature, 59% after 1.0 PV injection. recoveries -LPG mixtures are...

This study proposes economic evaluation of CO 2 geological storage with enhanced oil recovery. The procedures consider capital expenditures and operating costs infrastructures revenues from recovery carbon tax credits. Extensive simulations was conducted to determine the most promising scenario among cases, where miscibility controlled by addition liquefied petroleum gas. gas into a injection stream can accelerate reduction viscosity, interfacial tension, density, which cause improved...