Understanding aqueous foam with novel CO2-soluble surfactants for controlling CO2 vertical sweep in sandstone reservoirs

Abstract The ability of a novel nonionic CO2-soluble surfactant to propagate foam in porous media was compared with that of a conventional anionic surfactant (aqueous soluble only) through core floods with Berea sandstone cores. Both simultaneous and alternating injections have been tested. The nove...

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Autores principales:	Guangwei Ren, Quoc P. Nguyen
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2017
Materias:	Foam CO2-soluble surfactant Sweep efficiency Gravity segregation Optimal injection strategy Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/232f3065efb142e3982a8682cf313861
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spelling	oai:doaj.org-article:232f3065efb142e3982a8682cf3138612021-12-02T05:09:04ZUnderstanding aqueous foam with novel CO2-soluble surfactants for controlling CO2 vertical sweep in sandstone reservoirs10.1007/s12182-017-0149-21672-51071995-8226https://doaj.org/article/232f3065efb142e3982a8682cf3138612017-03-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-017-0149-2https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract The ability of a novel nonionic CO2-soluble surfactant to propagate foam in porous media was compared with that of a conventional anionic surfactant (aqueous soluble only) through core floods with Berea sandstone cores. Both simultaneous and alternating injections have been tested. The novel foam outperforms the conventional one with respect to faster foam propagation and higher desaturation rate. Furthermore, the novel injection strategy, CO2 continuous injection with dissolved CO2-soluble surfactant, has been tested in the laboratory. Strong foam presented without delay. It is the first time the measured surfactant properties have been used to model foam transport on a field scale to extend our findings with the presence of gravity segregation. Different injection strategies have been tested under both constant rate and pressure constraints. It was showed that novel foam outperforms the conventional one in every scenario with much higher sweep efficiency and injectivity as well as more even pressure redistribution. Also, for this novel foam, it is not necessary that constant pressure injection is better, which has been concluded in previous literature for conventional foam. Furthermore, the novel injection strategy, CO2 continuous injection with dissolved CO2-soluble surfactant, gave the best performance, which could lower the injection and water treatment cost.Guangwei RenQuoc P. NguyenKeAi Communications Co., Ltd.articleFoamCO2-soluble surfactantSweep efficiencyGravity segregationOptimal injection strategyScienceQPetrologyQE420-499ENPetroleum Science, Vol 14, Iss 2, Pp 330-361 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Foam CO2-soluble surfactant Sweep efficiency Gravity segregation Optimal injection strategy Science Q Petrology QE420-499
spellingShingle	Foam CO2-soluble surfactant Sweep efficiency Gravity segregation Optimal injection strategy Science Q Petrology QE420-499 Guangwei Ren Quoc P. Nguyen Understanding aqueous foam with novel CO2-soluble surfactants for controlling CO2 vertical sweep in sandstone reservoirs
description	Abstract The ability of a novel nonionic CO2-soluble surfactant to propagate foam in porous media was compared with that of a conventional anionic surfactant (aqueous soluble only) through core floods with Berea sandstone cores. Both simultaneous and alternating injections have been tested. The novel foam outperforms the conventional one with respect to faster foam propagation and higher desaturation rate. Furthermore, the novel injection strategy, CO2 continuous injection with dissolved CO2-soluble surfactant, has been tested in the laboratory. Strong foam presented without delay. It is the first time the measured surfactant properties have been used to model foam transport on a field scale to extend our findings with the presence of gravity segregation. Different injection strategies have been tested under both constant rate and pressure constraints. It was showed that novel foam outperforms the conventional one in every scenario with much higher sweep efficiency and injectivity as well as more even pressure redistribution. Also, for this novel foam, it is not necessary that constant pressure injection is better, which has been concluded in previous literature for conventional foam. Furthermore, the novel injection strategy, CO2 continuous injection with dissolved CO2-soluble surfactant, gave the best performance, which could lower the injection and water treatment cost.
format	article
author	Guangwei Ren Quoc P. Nguyen
author_facet	Guangwei Ren Quoc P. Nguyen
author_sort	Guangwei Ren
title	Understanding aqueous foam with novel CO2-soluble surfactants for controlling CO2 vertical sweep in sandstone reservoirs
title_short	Understanding aqueous foam with novel CO2-soluble surfactants for controlling CO2 vertical sweep in sandstone reservoirs
title_full	Understanding aqueous foam with novel CO2-soluble surfactants for controlling CO2 vertical sweep in sandstone reservoirs
title_fullStr	Understanding aqueous foam with novel CO2-soluble surfactants for controlling CO2 vertical sweep in sandstone reservoirs
title_full_unstemmed	Understanding aqueous foam with novel CO2-soluble surfactants for controlling CO2 vertical sweep in sandstone reservoirs
title_sort	understanding aqueous foam with novel co2-soluble surfactants for controlling co2 vertical sweep in sandstone reservoirs
publisher	KeAi Communications Co., Ltd.
publishDate	2017
url	https://doaj.org/article/232f3065efb142e3982a8682cf313861
work_keys_str_mv	AT guangweiren understandingaqueousfoamwithnovelco2solublesurfactantsforcontrollingco2verticalsweepinsandstonereservoirs AT quocpnguyen understandingaqueousfoamwithnovelco2solublesurfactantsforcontrollingco2verticalsweepinsandstonereservoirs
_version_	1718400519091781632

Understanding aqueous foam with novel CO2-soluble surfactants for controlling CO2 vertical sweep in sandstone reservoirs

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