Synergistic Improvement of Sweep Efficiency by Urea In-Situ Decomposition and Foaming Agent in Steam Flooding for Heavy Oil Reservoirs

Geoenergy Science and Engineering, Год журнала: 2025, Номер unknown, С. 213788 - 213788

Опубликована: Фев. 1, 2025

Язык: Английский

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Pore-scale mechanisms of the competition effects between temperature and solubility on the crude oil recovery during the CO2 huff-n-puff process

Physics of Fluids, Год журнала: 2025, Номер 37(4)

Опубликована: Апрель 1, 2025

CO2 huff-n-puff technology has been acknowledged to enhanced oil recovery in tight reservoirs by improving mobility via dissolution. Temperature fluctuations induced on the reservoir depth have an impact altering dissolution and mobility. A microscopic visualization simulation experiment was carried out under 2 MPa condition observe interactions between crude at various temperatures (30, 45, 60, 75, 90 °C). The contribution of viscosity reduction competition temperature improvement thoroughly evaluated. findings showed that dramatically lowers 30–50 °C, facilitating Oil are reduced 8.2% as a result decreasing with increasing temperature, while volume gas increases 1.3 times. At 50–60 improves significantly when increment amplitude is about two times amplitude. Temperature-induced predominates 60 °C. Furthermore, dominated matrix region low (30–60 °C) fracture high (75–90 °C), both regions weighing more than 40% ultimate recovery. Therefore, suitable range °C extraction reservoirs.

Язык: Английский

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Advancement Perspectives in Enhancing Heavy Oil Recovery Using N₂- and CO₂-Assisted Steam Injection: Exploring Molecular Interactions to Field Applications

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

Язык: Английский

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Experimental study of combined thermal flooding in improving heavy oil flowability

Energy Geoscience, Год журнала: 2024, Номер unknown, С. 100363 - 100363

Опубликована: Ноя. 1, 2024

Язык: Английский

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