Heat and mass transfer characteristics of superheated fluid for hybrid solvent-steam process in perforated horizontal wellbores

Líu, Hao; Cheng, Linsong; Huang, Shijun; Jia, Peng; Xiong, Hao

doi:10.1016/j.ijheatmasstransfer.2018.02.005

Cited by 21 publications

(9 citation statements)

References 53 publications

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“…Also, for each solvent, this trend slows down as the distance of each subregion to the injection end increases. This is because the heat and mass transfer near the heel will be greatly affected when the solvent is added . Besides, comparing parts a and b of Figure , it can be seen that the high-to-low permeability distribution will widen the chamber edge velocity gap between the heel end and the toe end (Figure b) because of the same effect of permeability distribution and wellbore heat and mass transfer on the velocity of the chamber edge.…”

Section: Results and Discussionmentioning

confidence: 93%

“…For comparison, H 2 O is regarded as the solvent to represent the conventional SAGD. The reservoir, wellbore, and other injection properties used are the same as those in refs and .…”

Section: Results and Discussionmentioning

confidence: 99%

“…1. The perforation parameters, including phasing, density, and perforation radius, remain the same along the horizontal well …”

Section: Model Frameworkmentioning

confidence: 99%

“…During the injection process, the injected energy is transmitted in two ways: (i) flowing into the reservoir through the perforation; (ii) conducting to the reservoir near the wellbore. Thus, the energy equilibrium in the j th part can be expressed as where h m, j is the enthalpy of fluid in the j th part, which can be calculated by referring to Appendix B in the Supporting Information; r co is external radius of the casing; U co is the total heat transfer coefficient between fluid in the wellbore and the cement–formation interface; T r is the formation temperature; f ( t ) is the transitory heat-conduction time function; λ e is thermal conductivity of the reservoir.…”

Section: Model Frameworkmentioning

confidence: 99%

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Semianalytical Analysis of Chamber Growth and Energy Efficiency of Solvent-Assisted Steam-Gravity Drainage Considering the Effect of Reservoir Heterogeneity along the Horizontal Well

et al. 2020

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Solvent-assisted steam-gravity drainage (SA-SAGD) has lately been viewed as one of the most efficient alternatives to develop heavy oil reservoirs. However, there is strong evidence that reservoir heterogeneity along the horizontal well can significantly affect chamber evolution and energy efficiency which has been rarely investigated for SA-SAGD. In this study, a mathematical method is proposed for the chamber growth in the heterogeneous reservoir by considering the wellbore flow effect coupled with the effect of phase change. Subsequently, the recovery rate and the energy efficiency, defined as the steam–oil ratio (SOR) of SA-SAGD, under different permeability distributions along the horizontal well are estimated using the method. The results reveal that heterogeneous reservoirs with high-to-low permeability distribution can achieve the highest oil production from SA-SAGD, but they are still lower than those in the homogeneous reservoirs. In addition, the highest energy efficiency in the SA-SAGD project can be achieved by injecting hot fluid from the lower permeability to the higher permeability region in the heterogeneous reservoir. The findings of this paper shed light on understanding the effects of reservoir heterogeneity along the horizontal well on the SA-SAGD project evaluation and the optimal designing for the decision of the injection direction in the SA-SAGD project, which can be applied to more reliably investigate greenhouse gas emission and economic benefits in a future bitumen exploitation project.

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Section: Results and Discussionmentioning

confidence: 93%

“…For comparison, H 2 O is regarded as the solvent to represent the conventional SAGD. The reservoir, wellbore, and other injection properties used are the same as those in refs and .…”

Section: Results and Discussionmentioning

confidence: 99%

“…1. The perforation parameters, including phasing, density, and perforation radius, remain the same along the horizontal well …”

Section: Model Frameworkmentioning

confidence: 99%

Section: Model Frameworkmentioning

confidence: 99%

See 2 more Smart Citations

Semianalytical Analysis of Chamber Growth and Energy Efficiency of Solvent-Assisted Steam-Gravity Drainage Considering the Effect of Reservoir Heterogeneity along the Horizontal Well

et al. 2020

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“…This is because the large bottom water possesses a larger elastic energy which can be used for oil production when the reservoir pressure has been greatly decreased for the last few cycles. For further learning on superheated steam injection for heavy-oil recovery, the following articles are recommended (Xu et al 2013;Chen et al 2018;Kondoh et al 2016;Ajumobi et al 2018;Fan et al 2016;Liu et al 2018).…”

Section: Resultsmentioning

confidence: 99%

Effect of bottom water on performance of cyclic superheated steam stimulation using a horizontal well

Sun

Yao

2019

J Petrol Explor Prod Technol

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Horizontal well has been widely used for heavy-oil recovery in the petroleum industry. Besides, superheated steam has been proved effective in heavy-oil recovery by field practice. In this paper, a numerical model is established with the help of numerical simulator. The effect of bottom water on the productivity of cyclic superheated steam stimulation well has been studied. Some interesting findings show that: (a) the bottom water-channeling phenomenon becomes more severe when the horizontal well is approaching the bottom water. (b) The cyclic oil production fluctuates with periodic number when the horizontal well is close to the bottom water due to the fact that the injected water has an elastic push action on the bottom water. (c) A larger-bottom water size is able to supply a larger elastic energy. While the cyclic oil production of large-bottom water size for the first few cycles is smaller than that with a small-bottom water, it may be turned over for the last few cycles.

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Geothermal energy extraction in CO2 rich basin using abandoned horizontal wells

Sun

Yao

et al. 2018

Energy

131

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Heat and mass transfer characteristics of superheated fluid for hybrid solvent-steam process in perforated horizontal wellbores

Cited by 21 publications

References 53 publications

Semianalytical Analysis of Chamber Growth and Energy Efficiency of Solvent-Assisted Steam-Gravity Drainage Considering the Effect of Reservoir Heterogeneity along the Horizontal Well

Semianalytical Analysis of Chamber Growth and Energy Efficiency of Solvent-Assisted Steam-Gravity Drainage Considering the Effect of Reservoir Heterogeneity along the Horizontal Well

Effect of bottom water on performance of cyclic superheated steam stimulation using a horizontal well

Geothermal energy extraction in CO2 rich basin using abandoned horizontal wells

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