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Keywords: salinity
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Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218186-MS
... recovery sandstone permeability surfactant concentration foam ltg injection viscosity salinity fd injection modeling & simulation saturation ltg slug experiment table Introduction Low-tension gas (LTG) is an attractive hybrid chemical EOR technique for challenging tight and high...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218134-MS
... interfacial system to generate a dataset of viscosity values as a function of different temperatures, surfactant concentrations, and salinities. The viscosity testing and training data are computationally measured using the Einstein relation of the Green-Kubo formula. Several machine learning (ML) based...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218212-MS
... Abstract Huge volumes of produced water are being generated from oil & gas fields worldwide. If this produced water can be treated for reuse as low salinity injection water, it becomes a real game changer to promote sustainability in IOR/EOR projects. In this study, the low salinity treated...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218196-MS
... Texas. The mineralogy is determined by XRD analysis. The zeta potential is measured for the drill cuttings. Contact angles are measured on core trims, and imbibition experiments are conducted to evaluate wettability alteration. The optimum salinity was determined to be produced water diluted 40 times...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218171-MS
... potential at the salinity and temperature of interest. Formulations that had both aqueous stability and solubilization potential based on observed Winsor Type I to Type III windows were chosen for coreflood experiments. Initially, two basic corefloods were performed in sand packs to establish baseline...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218166-MS
.... This contradiction hinders optimal reservoir performance (which is amplified because the dispersivity of heterogeneous reservoirs ), as the salinity resulting from alkali addition typically exceeds the desirable salinity for efficient oil recovery. The innovative addition of a hydrophilic co-surfactant introduced...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218214-MS
.... Mixing the two streams too close to the wellhead led to substantial variations in wellhead viscosity measurements. Dedicating individual pumps for injection into a given well provided desirable flexibility in controlling rates and concentrations of polymer for the well. Monitoring produced salinity...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218216-MS
... in the surfactant huff-puff dataset. The second cluster includes most of the high temperature and high salinity carbonate rocks, while the third cluster includes chalk rocks with fairly low permeability and high porosity. The first cluster contains surfactant treatments conducted with low temperature and low...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218283-MS
... with relatively high partition coefficients were shown to be better foam and emulsion breakers compared to agents with low partition coefficients. The effectiveness of a partitioning agent in breaking foam and emulsions can vary depending on both temperature and salinity. Partitioning agents such as aryl-based...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218230-MS
... Abstract Delayed polymer gel systems have been the leading in-depth water conformance control agents in enhanced oil recovery applications. However, most polymer gel systems had limitations to tolerance high temperature and high salinity conditions. The objective of this work is to develop...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218274-MS
... Abstract This study comprises an experimental evaluation of different brine compositions for waterflooding applications in carbonate reservoirs. In particular, the low-salinity wastewater obtained from a gas plant is benchmarked against the conventional high-salinity injection water...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218270-MS
... ift enhanced recovery salinity surfactant formulation novel thermal stimuli-responsive surfactant ano-1 ca-1 reservoir thermal stimuli-responsive surfactant stability geologist chemical flooding methods ca-1 interaction cationic surfactant reduce operation cost Introduction...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218151-MS
... by the larger particle size distribution within the fluid. When exposed to reservoir conditions (elevated temperature, high formation brine salinity, high divalent ion concentration), frac fluids can destabilize due to the presence of polyacrylamide acting as a flocculant. Such behavior causes phase-separation...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 25–29, 2022
Paper Number: SPE-209385-MS
... effective. The use of alkali and preflush of the soft brine helped minimize surfactant retention. upstream oil & gas flow rate salinity chemical flooding methods surfactant formulation preflush coreflood pressure drop slug enhanced recovery brine polymer slug surfactant asp flood...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 25–29, 2022
Paper Number: SPE-209452-MS
... ) ] Abstract A recently reported correlation of CO 2 −brine interfacial tension (IFT) for the full range of reservoir pressure, temperature, and formation water salinity necessary to evaluate CO 2 sequestration in hydrocarbon reservoirs has been revised and simplified. The new CO 2 −brine correlation...

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