Results 11 to 20 of about 425,817 (282)
Spontaneous imbibition characteristics of diatomite
Journal of Petroleum Science and Engineering, 2000 Abstract A systematic investigation of fluid flow characteristics within diatomite (a high porosity, low permeability, siliceous rock) is reported. Using an X-ray computerized tomography (CT) scanner, and a novel, CT-compatible imbibition cell, we study spontaneous cocurrent water imbibition into diatomite samples. Air–water and oil–water systems are
Akın, Serhat +3 more
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Petroleum Exploration and Development, 2017 Taking the Chang 8 tight sandstone reservoir of the Yanchang Formation of Fuxian area in Ordos Basin as an example, the influencing mechanism of permeability on imbibition recovery in tight sandstone was explored by spontaneous imbibition experiment ...
Xiaoyu GU +6 more
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Energies, 2018 In this paper, the nuclear magnetic resonance (NMR) technique is applied to exploring the spontaneous imbibition mechanism in tight sandstones under all face open (AFO) boundary conditions, which will benefit a better understanding of spontaneous ...
Chaohui Lyu +6 more
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Onset of Spontaneous Imbibition [PDF]
, 2017 The spontaneous imbibition process in porous media is an important recovery mechanism and is governed by capillary forces that arise when two immiscible fluids are present in the pore space. This thesis presents new observations where the displacement process deviates from the widespread assumption of a uniformly shaped saturation front and the square ...
Føyen, Tore Lyngås
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EnergiesThe understanding of the mechanisms that govern water spontaneous imbibition in mixed wetting capillary channels plays a significant role in operating the oil extraction and energy replenishment for the tight oil reservoirs.
Yu Pu, Erlong Yang, Di Wang
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Frontiers in Physics, 2022 Spontaneous imbibition is an effective method of tight sandstone reservoirs development. However, their underlying mechanisms are still unclear due to the representative issue caused by strong heterogeneity and complex oil-brine properties.
Dazhong Ren +5 more
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Nonlocal Dynamics of Spontaneous Imbibition Fronts [PDF]
Physical Review Letters, 2002 We have studied spontaneous imbibition fronts generated by capillary rise between two roughened glass plates, the separation d of which varied between 10 and 50 microm. Perfect agreement with Washburn's law was obtained. We have determined the roughness exponent chi of the fronts, and found chi=0.81+/-0.01 for small length scales.
Geromichalos, D. +2 more
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Geofluids, 2022 Spontaneous imbibition has been considered as a significant method to enhanced oil recovery (EOR) in unconventional reservoirs. The main impediment to comprehending the variation characteristics of spontaneous imbibition at different pore scales was the ...
Ming Yue +5 more
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The prediction of spontaneous oil-water imbibition in composite capillary
Petroleum, 2022 In view of the classical Lucas-Washburn equation, which can only describe the spontaneous imbibition of single wetted capillary, a tilted composite capillary model with circular cross section, composed of different wettability capillary wall was ...
Lin Wang +3 more
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Measurement and Modeling of Spontaneous Capillary Imbibition in Coal [PDF]
ACS Omega, 2020 Coal is a typical dual-porosity medium. The implementation process of water invasion technology in coal is actually a process of spontaneous imbibition of external water. To obtain a model of spontaneous capillary imbibition in coal, the spontaneous imbibition of water in coal samples with different production loads is conducted experimentally.
Jiwei Yue +6 more
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