Some Notes on Wettability and Relative Permeabilities of Carbonate Reservoir Rocks, II

Chilingar, George V.; Yen, Teh Fu

doi:10.1080/00908318308908076

Cited by 285 publications

(110 citation statements)

References 4 publications

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“…Most of the carbonate reservoirs are found to be mixed-wet or oil-wet (Chilingar and Yen 1983). At times, strongly oil-wet carbonate formations leave behind a high water-flooded residual oil saturation and have unfavorable mobility ratios.…”

Section: Heterogeneity and Characteristics Of Carbonate Reservoirsmentioning

confidence: 99%

Review of surfactant-assisted chemical enhanced oil recovery for carbonate reservoirs: challenges and future perspectives

et al. 2017

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Section: Heterogeneity and Characteristics Of Carbonate Reservoirsmentioning

confidence: 99%

Review of surfactant-assisted chemical enhanced oil recovery for carbonate reservoirs: challenges and future perspectives

et al. 2017

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“…If the correlation is obtained, it could be used in the standard scaling equation and a perfect correlation may be obtained for variation in viscosity ratios. Chilingar and Yen (1983) reported that most carbonate reservoirs were mixed-wet to strongly oil-wet by extensive research work on the wettability of carbonate reservoir cores. Understanding the effect of wettability on SI is essential to prediction of reservoir production performances and enhanced oil recovery in oil-wet fractured reservoirs.…”

Section: Fluid Viscositymentioning

confidence: 99%

A critical review on fundamental mechanisms of spontaneous imbibition and the impact of boundary condition, fluid viscosity and wettability

Meng

Liu

Wang

2017

Adv. Geo-Energ. Res.

111

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Spontaneous imbibition (SI) is one of the primary mechanisms of oil production from matrix system in fractured reservoirs. The main driving force for SI is capillary pressure. Researches relating to SI are moving fast. In the past few years, amount of literature on the development of SI with respect to many variables, such as mechanism of imbibition, scaling of imbibition data and wettability of matrix blocks. In this review, we first introduced the fundamental physics mechanism of SI through capillary tube models and micromodels. Then both conventional and more novel experimental methods of measuring oil production are discussed thoughtfully. This is followed by reviewing the oil production performance under various boundary conditions and the characteristic length in scaling equations that have been used to account for different cores shape and boundary conditions. The effect of fluid viscosity on the rate of oil production and final oil recovery as well as the development of viscosity term in the scaling equation are reported. The commonly used methods to quantitatively evaluate the wettability of cores and the SI under mix-and oil-wet conditions are introduced. And last but not least, the methods and mechanism of wettability alteration for enhanced oil recovery in mix-or oil-wet fractured reservoirs are presented.Keywords: Spontaneous imbibition, fractured reservoirs, boundary condition, viscosity ratio, wettability.Citation: Meng, Q., Liu, H., Wang, J. A critical review on fundamental mechanisms of spontaneous imbibition and the impact of boundary condition, fluid viscosity and wettability.

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“…But physical constraints such as reduced well pressure and extensive oil trapping lessen oil production which eventually ceased at one stage and caused changes in the composition of crude oil affecting the reservoir wettability (Yangming et al 2003). Chilingar and Yen (1983) thoroughly investigated different reservoir cores such as limestone, dolomite limestone, calcite dolomite and dolomite and concluded that 15 % were strongly oil wet, 65 % were oil wet, 12 % moderate oil wet and 8 % water wet. Therefore, in this point of view, it is an important issue regarding wettability for further desired oil recovery.…”

Section: Introductionmentioning

confidence: 99%

Microemulsions: a novel approach to enhanced oil recovery: a review

Bera

Mandal

2014

J Petrol Explor Prod Technol

211

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The trend of growing interest in alternative source of energy focuses on renewable products worldwide. However, the situation of petroleum industries in many countries needs much concern in improving the oil recovery technique. Chemical method, especially microemulsion flooding, plays an important role in enhanced oil recovery technique due to its ability to reduce interfacial tension between oil and water to a large extent as well as alter wettability of reservoir rocks. Surfactant-based chemical systems have been reported in many academic studies and their technological implementations are potential candidates in enhanced oil recovery activities. This paper reviews the role of different types of surfactants in enhanced oil recovery, structure of microemulsion, phase behavior of oil-brine-surfactant/cosurfactant systems with variation of different parameters such as salinity, temperature, pressure and physicochemical properties of microemulsions including solubilization capacity, interfacial tension, viscosity and density under reservoir conditions. The enhanced oil productivity by microemulsion flooding with different surfactant/cosurfactant systems has also been discussed in this paper. This review introduces a new opening in enhanced oil recovery by microemulsion flooding with some new aspects.

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Some Notes on Wettability and Relative Permeabilities of Carbonate Reservoir Rocks, II

Cited by 285 publications

References 4 publications

Review of surfactant-assisted chemical enhanced oil recovery for carbonate reservoirs: challenges and future perspectives

Review of surfactant-assisted chemical enhanced oil recovery for carbonate reservoirs: challenges and future perspectives

A critical review on fundamental mechanisms of spontaneous imbibition and the impact of boundary condition, fluid viscosity and wettability

Microemulsions: a novel approach to enhanced oil recovery: a review

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