Zobrazeno 1 - 10
of 65
pro vyhledávání: '"M. Vafaie Sefti"'
Publikováno v:
Journal of Petroleum Science and Technology, Vol 2, Iss 2, Pp 3-11 (2012)
Among the methods available to reduce water production, injecting a gelling system composed of a polymer and a crosslinker has been widely used. In this work, a hydrogel was prepared by crosslinking of an aqueous solution containing hexamethylenetetr
Externí odkaz:
https://doaj.org/article/301fe5c7c9f142c68159a240d19df2c6
Publikováno v:
Journal of Petroleum Science and Technology, Vol 1, Iss 2, Pp 10-18 (2011)
A hydrogel was prepared by crosslinking aqueous solutions of sulfonated polyacrylamide/chromium triacetate for use in water shut off operations. Gel swelling and the effects of salinity, injection time and flow rate on residual resistance factor (Frr
Externí odkaz:
https://doaj.org/article/a78b11f4c5924543ab03c98cffad1b98
Akademický článek
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Akademický článek
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Publikováno v:
Petroleum Science and Technology. 35:653-660
Asphaltene is the heaviest fraction of oil, and if the thermodynamic conditions of oil change, it can be separated from oil precipitate. Of common methods for preventing asphaltene precipitation, using predictive methods, biological methods and injec
Autor:
M. Vafaie Sefti, Alireza Afsharpour, M. Zare Talavaki, S. Veisi, M. M. Shadman, Zeinab Taherian
Publikováno v:
Petroleum Science and Technology. 35:377-384
Asphaltene precipitation during natural depletion and miscible gas injection is a common problem in oilfields throughout the world. Therefore, predicting asphaltene phase behavior through thermodynamic modeling may help to control its precipitation a
Publikováno v:
Petroleum Science and Technology. 34:1534-1541
Asphaltene precipitation and subsequent deposition in production tubing and topside facilities present significant cost penalties to crude oil production. Therefore, it is highly desirable to predi...
Publikováno v:
Petroleum Science and Technology. 34:1233-1239
Organic deposition especially asphaltenes in reservoirs, wells, and equipment has a detrimental effect on petroleum economy. Generally, for chemically control of asphaltene precipitation using dispersants and inhibitors of precipitation or solvents o
Publikováno v:
Petroleum Science and Technology. 34:1075-1082
The precipitation tendency of heavy organics such as asphaltene has posed great challenges for petroleum industry, and thus study of asphaltene precipitation amount and formation conditions seems to be necessary. One of the most common approaches for
Publikováno v:
Energy Conversion and Management. 76:1-7
In this work, the kinetics of crystal H hydrate and two stage kinetics formation is modeled by using the chemical affinity model for the first time. The basic idea is that there is a unique path for each experiment by which the crystallization proces