... Abstract Smart waterflooding (SWF) is the science of injecting water of reduced salinity or modified potential determining ions (PDI) concentration in petroleum reservoirs for a specific brine/oil/rock system to obtain higher oil recovery efficiency. The study validates the surface interactions...

... of the study are 1- Wettability index and spontaneous imbibition (SI) experiments indicate a potential low salinity effect; the presence of clays, formation, and injection brine composition, presence of potential determining ions determines the impact of oil recovery for screening of fields; 2- Displacement...

... by challenges such as permeability impairment, which is triggered by the CO 2 -brine-rock interactions. Permeability impairment (or simply injectivity loss) could be influenced by the thermophysical conditions and injected CO 2 characteristics. Moreover, these factors dictate the effectiveness of CO 2 storage...

... solubility of CO 2 and H 2 O. Classical mixing rules with a temperature-dependent binary interaction parameter are used to describe the interactions between H 2 O and salt ions and between CO 2 and salt ions. A good agreement is seen with the experimental data for the CO 2 solubility in brine...

... Abstract Deep and ultradeep reservoirs are commonly characterized by high temperature and high pressure (HTHP), which poses a severe challenge to well testing operations. The requirement for high-density clear brine drives the overall cost of the well testing operations. There are only a few...

... (minimum IFT of 0.22 mN/m and contact angle of 5° in 600 seconds). Nevertheless, the conventional AS formulation exhibited better synergism with brine yielding minimum IFT of 1.52 × 10 -2 mN/m. The ETA–SCA system also exhibited the ability to emulsify crude oil and form stable emulsions, a desirable...

... using laboratory testing to describe the elemental and morphological presence of each mineral. Then, four of the core samples were high graded for evaluating the permeability by flooding with brine and oil to examine the fines migration and dispersion potential of clays and siderite. The next phase...

... Abstract Over the years, laboratory studies and a limited number of field trials have demonstrated the potential of enhancing oil recovery using controlled-salinity water flooding. The injected brine composition is one of the promising techniques that could alter the wettability of carbonate...

... polymer gel. Additional 24% of the trapped oil was recovered after treatment. It signifies the effectiveness of polymer gel with silica NP to divert the flow of water into where trapped oil is located. Good gel performance can be visualized through the dye stain on the surface of the core cut. When brine...

... experiments. For this purpose, different commercial amphoteric and amine-based switchable surfactants were utilized and their compatibility in 20 wt% brine were ensured at HPHT conditions. Initial screening was performed by conducting series of foam stability and foaming ability tests at high temperature...

... attributed the interactions between CO 2 -brine-rock to be the major cause. This research investigated the effect of CO 2 displacement schemes, reservoir rock permeability, formation brine type and concentration on CO 2 injectivity. CO 2 coreflood experiment with detailed characterization of the rock...

... by phase behavior studies using surfactants-brine-crude oil systems were obtained for selected reservoir conditions (temperature, injection water salinity, specific crude oils, and rock properties). These custom-made formulations were Winsor III microemulsions with very high oil solubilization, and an IFT...

... Abstract Seismic interpretation is one of key steps in the hydrocarbon predication. However, amplitude interpretation using post-stack data is ambiguous because P-wave, S-wave velocity and density can be given by different rock case. A high-porosity brine-filled rock can produce a response same...

... drilling fluid (NADF) is used. In addition, completion fluid costs can be significant, especially where high-density brines are required for wellbore safety. Improved cleaning efficiency can lead to significant cost savings. Wellbore cleanups in high-temperature, high-pressure (HTHP) wells can...

...-mechanical strength of the reservoir is compromised. reservoir characterization co 2 permeability limestone elastic property supercritical co 2 carbonate rock brine geo-mechanical weakening chemical flooding methods stress-strain curve dynamic elastic property wormhole upstream oil...

... composite plug in brine during the cleanup process. This eliminates multiple slickline trips or well intervention after the completion, and enables unloading and immediate production of these wells under optimized gas lift conditions. The nanostructured composite material for the smart plug is lighter than...

... of different acrylic acid concentrations on interfacial tension reduction, polymer viscosity and wettability was also investigated using hard brine with a total salinity of 59,940 ppm. Various fluid-fluid interaction tests were first performed to find an optimum ratio of acrylic acid-alkali to prevent...

... hendraningrat metal oxide nanoparticle nanoparticle concentration oil recovery enhanced recovery upstream oil & gas nanofluid stability stability observation oil displacement mechanism brine surface conductivity displacement mechanism povidone OT C06 Unlocking the Potential of Metal Oxides...

... % and 83% for nanofiltration and ultrafiltration respectively. Heated centrifugation removed 40% and oxidation degraded more than 70% of KHI polymer. Biotreatment efficiently degraded about 70% of KHI when added at 1.5% to brine. To check the effectiveness of each process, the treated KHI solutions were...

... segmented seat specimen reliability hydraulic fracturing extension test fracture fluid hitp mef roc solid seat brine hscm OTC-24868-MS Improving Reliability of Multi-Zone Fracturing Treatments While Optimizing Efficiency N.Carrejo, H.Wibowo, B.J.Salinas, Z.Xu, S.L.Gaudette, Baker Hughes...