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Keywords: concentration
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Proceedings Papers

Paper presented at the SPE EuropEC - Europe Energy Conference featured at the 83rd EAGE Annual Conference & Exhibition, June 6–9, 2022
Paper Number: SPE-209663-MS
...-temperature conditions, the CO 2 concentration and the dominant hydrogen compounds in the crude oil, i.e. whether they are aliphatics, aromatics, or naphtenics (cyclic structures). The PVT properties of the different CO 2 -hydrocarbon mixtures vary greatly and the available experimental data for tuning PVT...
Proceedings Papers

Paper presented at the SPE EuropEC - Europe Energy Conference featured at the 83rd EAGE Annual Conference & Exhibition, June 6–9, 2022
Paper Number: SPE-209703-MS
.... shale gas shale oil hydraulic fracturing oil shale drilling operation sichuan basin unconventional resource conference upstream oil & gas lateral complex reservoir tighter cluster brittle mineral content concentration petroleum exploration pad hx completion hydraulic fracture...
Proceedings Papers

Paper presented at the SPE EuropEC - Europe Energy Conference featured at the 83rd EAGE Annual Conference & Exhibition, June 6–9, 2022
Paper Number: SPE-209656-MS
... intensity core permeability flow in porous media concentration resistance coefficient enhanced recovery fluid dynamics micro-nano oil-displacement system mn particle expansion multiple injection test result mns2 polymer flooding expansion performance pore throat water flooding...
Proceedings Papers

Paper presented at the SPE EuropEC - Europe Energy Conference featured at the 83rd EAGE Annual Conference & Exhibition, June 6–9, 2022
Paper Number: SPE-209644-MS
... dioxide footprint sealant upstream oil & gas hc system autonomic computing caprock salt concentration ug well nacl concentration concentration cement property bwow nacl reduction cement system integrity salt cavern simulation operation slurry system cement casing shoe slurry...
Proceedings Papers

Paper presented at the SPE EuropEC - Europe Energy Conference featured at the 83rd EAGE Annual Conference & Exhibition, June 6–9, 2022
Paper Number: SPE-209676-MS
... compositions influencing GOR, water cut, CO 2 concentration and consequently Ca 2+ , alkalinity and pH. The variation of fluid compositions has an inevitable impact on the scaling potential of produced fluids and on the resulting level of scale formation and its mitigation strategy. The aim of this work...
Proceedings Papers

Paper presented at the SPE Europec featured at 82nd EAGE Conference and Exhibition, October 18–21, 2021
Paper Number: SPE-205143-MS
... results with and without wormholes showed that the significant difference was not observed in acid concentration, but ideal width distribution was lower with wormholes. It is concluded based on the observation of the study that the leakoff from acid fracture represented by a reservoir model with wormhole...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200528-MS
... conductivity of formation; U co is the whole heat transmission factor between fluid in tube and formation/cement boundary [ 11 ]. However, the temperature along the horizontal tube is unable to be calculated by only Eq.(3) , due to the situation that the concentration of the solvent is undetermined...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200534-MS
... used in the core flooding experiments. First, secondary recovery was applied on all cores by SSW injection. Then the cores were re-cleaned and re-dryed to be prepared for the secondary recovery by using 4 different types of nanofluids with the same concentration of 0.1 wt% as NFs. In this research...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200562-MS
... degrading biofilm was developed; b) adding biocide prior to mature biofilm formation. Different biocide concentrations were tested. Rest viscosity (i.e. level of biodegradation) was determined by measuring viscosity injected and produced from the sandpack columns. Various microbial (cell numbers, metabolite...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200565-MS
... the nucleation sites that are preferred for crystal growth (nucleation inhibition). As long as the scale inhibitor concentration in the aqueous phase is above the minimum inhibitor concentration (MIC), it can inhibit any further growth of scale by these two mechanisms ( Sorbie, Graham and Jordan, 2000...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200566-MS
... of surfactant adsorbed onto carbonate surface are compared. Materials After estimating each surfactant concentration obtained from both methods, the total adsorption was calculated using equation (1) below: (1) θ A   = ( φ i s u r f − φ f s u r ) * V...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200532-MS
... particle sizes (46.4-245 μm, 160-630μm, 480-1800μm, 1400-5000μm) silica sand. Isothermal experiments are carried out using 3000 ppm promoter concentration at 100 bar, 274.15°C using the rocking cell to investigate the induction time, gas uptake, hydrate saturation. Temperature is further lowered to 266.15K...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200584-MS
..., concentration and salinity tolerance of the surface active agent ( Schramm 1994 ; Da et al. 2018 ). Except taking CO 2 as the displacing phase in EOR, N 2 foam flooding is also mentioned in papers usually, and many researchers investigated the comparison of CO 2 foam and N 2 foam. Farajzadeh et al...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200578-MS
... of the various parameters as they need to be consistent with the different sets of data that are observed (e.g. pressures, oil and water production, chemical concentration at the outlet). Here, we are applying Machine Learning in a Bayesian Framework to condition parameter ranges to a multitude of observed data...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200600-MS
... the secondary fracture system, with far-reaching applications to porous media particulate transport. fracturing materials fracturing fluid Simulation particle size complex reservoir concentration profile particle proppant concentration primary channel hydraulic fracturing Upstream Oil & Gas...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200612-MS
... concentration. The flow rate and pressure drop were also recorded simultaneously during the injection of the sand. Our results show how the erosion directly affects the Cd value and the subsequent pressure drop near the perforated hole. A clear increase of the Cd magnitude becomes visible only due to a change...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200618-MS
... sand control Gravel Pack Operation Upstream Oil & Gas ULW proppant History Match gravel pack fracture pressure drilling operation diverter valve beta wave Directional Drilling concentration open hole surfactant society of petroleum engineers alpha wave Pump Rate uphill...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200629-MS
... Farajzadeh et al. [ 4 ] used filtration theory ([ 7 ]) to account for the mechanical entrapment of the polymers in porous media. Accordingly, it was assumed that the rate of entrapment is proportional to the injected polymer concentration, and its flux. Their analytical model assumed a constant...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200642-MS
... gradients. A more pronounced migration is observed when small concentrations of macromolecules are added. Our findings expand the understanding of DP migration in an extremely high salinity environment. In addition, they provide insights into the utilization of natural or induced gradients in oil...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200632-MS
..., noticeably because the higher concentration of brine resulted in higher amounts of salt precipitation. Porosity reduction ranged between 0.75% to 6% with increasing brine salinity while permeability impairment ranged from 10% to 70% of the original permeability. The SEM images of the core samples after...

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