Experimental Investigation on Temperature-Resistant CO 2 Foam Flooding in a Heterogenous Reservoir

Mei Tian, Yi Wu, Yuhua Shi, Guohua Cao, Yu Sun, Maozhu Li, Wei Wang, Li Gao, Zhipeng Wang and Yiqiang Li ()
Additional contact information
Mei Tian: Research Institute of Exploration and Development, Liaohe Oilfield Company, PetroChina, Panjin 124010, China
Yi Wu: Research Institute of Exploration and Development, Liaohe Oilfield Company, PetroChina, Panjin 124010, China
Yuhua Shi: Research Institute of Exploration and Development, Liaohe Oilfield Company, PetroChina, Panjin 124010, China
Guohua Cao: Research Institute of Exploration and Development, Liaohe Oilfield Company, PetroChina, Panjin 124010, China
Yu Sun: State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, China
Maozhu Li: State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, China
Wei Wang: Research Institute of Exploration and Development, Liaohe Oilfield Company, PetroChina, Panjin 124010, China
Li Gao: Research Institute of Exploration and Development, Liaohe Oilfield Company, PetroChina, Panjin 124010, China
Zhipeng Wang: State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, China
Yiqiang Li: State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, China

Energies, 2024, vol. 18, issue 1, 1-14

Abstract: Gas channeling treatment is a huge challenge for oil displacement and CO 2 sequestration in the practical CO 2 flooding process. The foaming agents can be used in the gas flooding process, which presents good application potential for gas channeling blockage. However, high temperature can affect surfactant foaming properties. This work takes a high-temperature heterogenous sandstone oil reservoir as an example; the foaming performance of different surfactants was evaluated via foamability, thermal stability, crude oil tolerance ability, and dynamic blocking capacity. The profile control performance of the optimized foaming agent was investigated via dual-core gas flooding experiments. (1) The results show that QPJ-c featured good foaming stability, which made it present the largest foam comprehensive index, although its foaming volume was slightly lower than that of QPJ-b. Its foaming volume retention rate was 83.2%, and its half-life retention rate remained 88.9% after 30 days aging at a temperature of 110 °C. (2) The foam resistance factor increased from 7 to 17 when the core permeability increased from 2 mD to 20 mD. This indicated that the high-permeability zone could be preferentially blocked by foam during the foam injection. (3) The dual-core flooding experiments verified that the fractional flow of the high-permeability core severely decreased due to the blockage of foam. The incremental oil recovery of the low-permeability core was 27.1% when the permeability ratio was 5. It increased to 40% when the permeability ratio was increased to 10. (4) Our work indicates that temperature-resistant CO 2 foam could be a good candidate for profile control during CO 2 flooding in the target reservoir.

Keywords: CO 2 flooding; gas channeling; CO 2 foam; dual-core flooding; foam property evaluation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/18/1/89/pdf (application/pdf)
https://www.mdpi.com/1996-1073/18/1/89/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:18:y:2024:i:1:p:89-:d:1555727

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().