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Keywords: adsorption
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Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218144-MS
... adsorption concentration hydrophilicity Introduction Due to carbonate high reactivity, carbonate petroleum reservoirs present complex diagenesis that results a some specific characteristics, when compared to sandstone petroleum reservoir, such as: (1) the presence of channels and fractures, which...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218159-MS
... and low-permeability formations is challenging because of anionic polymer retention, and poor injectivity. Minimizing polymer loss due to retention and good polymer injectivity are the key factors in the economic success of polymer flooding. Polymer retention is a general term comprising adsorption...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218181-MS
... adsorption, mobility reduction during polymer injection, permeability reduction and gelation time. These parameters can be utilized in simulation work to evaluate gel treatment efficiency in a pilot. sedimentary rock waterflooding polymer concentration geologist rock type injection reduction...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218195-MS
..., gas composition, water saturation, oil saturation, and rock permeability. Surfactant adsorption on the rock and its partition in the oil phase was also measured. These results were used to estimate parameters to be entered into foam models available in commercial reservoir simulators. Other fields...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218226-MS
... retardation of foam generation/propagation due to high minimum pressure gradient (MPG) and surfactant adsorption. This study aims to minimize the transient foam state and optimize the foam process for maximizing the CO2 utilization capacity. The design of a foam process mainly focuses on the foam behavior...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218215-MS
... is the polymer adsorption. During transport, the polymer will irreversibly adsorb onto the reservoir rock, with the exact extent of adsorption depending on reservoir/polymer properties, such as the polymer composition and molecular weight, mineralogy of the reservoir, brine composition, reservoir temperature etc...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218244-MS
..., a common clay mineral in sandstone reservoirs. They observed a transition of the muscovite surface from water-wet to oil-wet over time, attributed to the adsorption of polar oil molecules on the mineral surface. Similarly, AlQuraishi et al. (2015) demonstrated wettability change towards water-wet...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218279-MS
... 2 paraffin remediation foam journal fracture wax remediation implementation surfactant operation adsorption field implementation technology spe annual technical conference chemical tracer nguyen stability workflow Introduction Gas flooding has been a well-established method...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218271-MS
... for synergism. We also conducted static adsorption and spontaneous imbibition tests to examine the effects of binary surfactants on oil recovery. We observed that the nonionic surfactant reduced the adsorption of the anionic and cationic surfactants by 53% and 28%, respectively, and increased the recovery...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218252-MS
...], while the molar fraction of component i in the free phase, is denoted by y i . ϕ f and ϕ s are the volume fractions of the free phase and solid phase, respectively, φ is the total porosity [pore volume per bulk volume], C ma is the maximum adsorption concentration in the sorbed...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, August 31–September 4, 2020
Paper Number: SPE-200331-MS
... remediation production chemistry wax inhibition waterflooding asphaltene inhibition complex reservoir calcite surface calcite powder scale inhibition eqcro adsorption mineral surface carbonate hydrocarbon oilfield chemistry asphaltene remediation upstream oil & gas modification...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, August 31–September 4, 2020
Paper Number: SPE-200445-MS
... waterflooding surface facility concept upstream oil & gas modeling & simulation field development optimization and planning adsorption viscosity asp pilot implementation polymer flood facility concept sensitivity infill drilling surfactant adsorption consideration injection mangala field...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, August 31–September 4, 2020
Paper Number: SPE-200417-MS
... obtained by using S a/c . The adsorption inhibitor (AI) was adopted to reduce the adsorption because of the high clay contained in the natural core. Dynamic adsorption was about 0.30 mg/g with addition of AI, as well as IFT kept almost unchanged before and after adsorption. In order to reduce...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, August 31–September 4, 2020
Paper Number: SPE-200441-MS
... were investigated. The polymers consisted of AMD-AA co-polymers, AMD-ATBS co-polymers and AMD-AA-ATBS ter-polymers. The polymers were studied both in their original state as they would be during the injection (initial viscosity, initial adsorption and in-situ rheology) as well as in the state which...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, August 31–September 4, 2020
Paper Number: SPE-200449-MS
... Abstract Phase equilibrium of shale fluid is highly disturbed due to liquid adsorption and capillary pressure in densely-developed organic nanopores. And the miscibility phenomenon between gas and oil is also changed during gas injection for enhanced oil recovery (EOR). Therefore...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, August 31–September 4, 2020
Paper Number: SPE-200315-MS
... temperature conditions, where CO 2 remained in the supercritical state. The performance of the amphoteric surfactant was compared with another good foamer on the basis of foam stability and strength, both in bulk and in porous media. Dynamic adsorption tests were conducted to compare the adsorption...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 14–18, 2018
Paper Number: SPE-190290-MS
... & Gas complex reservoir surfactant blend Brine IFT enhanced recovery carbonate reservoir Phase Behavior adsorption concentration Puerto composition surfactant surfactant solution formulation salinity injection surfactant concentration carboxylate foam crude oil anionic surfactant...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 14–18, 2018
Paper Number: SPE-190296-MS
... adsorption experiment seawater formulation enhanced recovery Brine reservoir rock salinity apparent viscosity flood Introduction Results Table 1 shows chemical requirements in tons/day for a hypothetical 100,000 BBL/day ASP chemical flood. It is seen that the largest chemical...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 14–18, 2018
Paper Number: SPE-190159-MS
... from laboratory testing, combined with reservoir-scale simulations and field trial surveillance, enabled the reaction and adsorption characteristics of the polymer to be estimated. Simulations of the injection pressure demonstrate that this polymer has significantly better injectivity under matrix...

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