Adding chemical additives with in-situ generation of foam is an approach to enhance SAGD (steam assisted gravity drainage) performance both in terms of oil production and SOR (steam-oil ratio). Simulation studies tell that, owing to gas mobility control, interfacial tension reduction and emulsification, a steam chamber profile is substantially controlled with reduced heat loss and residual oil saturation drops significantly. Strong foam accumulates along the inner boundary of a steam chamber owing to lower capillary pressure and higher nitrogen concentration. A heterogeneous model based on an Athabasca project is employed to show that bubbles are conducive to improve volumetric sweep by diverting steam into a low permeable area. Simultaneously, foam favors to reduce the influences of a top water zone and maintain bowl-shaped and uniformly-developed steam chamber growth.
| Autorius: | Ran Li, Zhangxin Chen, Keliu Wu, |
| Leidėjas: | LAP LAMBERT Academic Publishing |
| Išleidimo metai: | 2018 |
| Knygos puslapių skaičius: | 100 |
| ISBN-10: | 6202003413 |
| ISBN-13: | 9786202003414 |
| Formatas: | Knyga minkštu viršeliu |
| Kalba: | Anglų |
Parašykite atsiliepimą apie „Modeling and Simulation of Chemical Additives and Foam Assisted SAGD“
