Stability of carbon dioxide foam and effect of polymer on its foam properties

LÜ Mingming; WANG Shuzhong

doi:10.3969/j.issn.0438-1157.2014.06.036

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Stability of carbon dioxide foam and effect of polymer on its foam properties

更新时间：2025-12-10

- Stability of carbon dioxide foam and effect of polymer on its foam properties
- CIESC Journal Issue 6, Pages: 2219-2224(2014)
- 作者机构：
  
  西安交通大学热流科学与工程教育部重点实验室,陕西,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.06.036
  CLC： E357
- Online First：05 June 2014，
  
  Published：05 June 2014
- 稿件说明：
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LÜ Mingming, WANG Shuzhong. Stability of carbon dioxide foam and effect of polymer on its foam properties[J]. CIESC Journal, 2014, (6): 2219-2224.
DOI：

LÜ Mingming, WANG Shuzhong. Stability of carbon dioxide foam and effect of polymer on its foam properties[J]. CIESC Journal, 2014, (6): 2219-2224. DOI： 10.3969/j.issn.0438-1157.2014.06.036.

摘要

基于CO2气体性质的特殊性以及CO2泡沫在多孔介质中表现出不同于其他气体泡沫的现象，利用气流法，选用十二烷基苯磺酸钠（SDBS）作为起泡剂，研究了CO2泡沫的稳定性和衰减规律，以及聚合物部分水解聚丙烯酰胺（HPAM）对CO2泡沫性能的影响。结果表明，在相同条件下，CO2泡沫的稳定性比N2泡沫差，并且CO2泡沫的稳定性基本不受表面活性剂浓度的影响；CO2泡沫的衰减曲线近似一条直线，泡沫形成后体积迅速减小。CO2在水中具有较大的溶解度，泡沫的液膜渗透率系数大，因而泡沫稳定性差，也是造成CO2泡沫在岩心内渗流规律区别于N2泡沫的一个重要原因。HPAM的加入可以在一定程度上增强CO2泡沫的稳定性，但同时也会使溶液起泡性能降低，所以实际应用时需要综合考虑泡沫特性，选择最佳的聚合物浓度。

Abstract

Considering the special nature of CO2 and the behavior of CO2 foam in the porous medium different from foams of other gases

CO2 foam stability

decay property of CO2 foam and effect of partially hydrolyzed polyacrylamide (HPAM) on CO2 foam properties were studied. The gas-flow method was used for foaming and sodium dodecyl benzene sulfonate (SDBS) was used as the foaming agent. The stability of CO2 foam was worse than that of N2 foam under the same conditions and was nearly not influenced by surfactant concentration. Besides

the decay curve of CO2 foam was approximately a straight line and the volume of CO2 foam decreased rapidly after foaming. An important factor leading to the poor stability of CO2 foam lay on the large film permeability coefficient because of higher solubility of CO2 in water

which further led to the different propagation behavior of CO2 foam from N2 foam in the core. The adding of polymer HPAM enhanced the stability of CO2 foam to a certain extent

but reduced the foaming property of surfactant solution. Therefore

both foam stability and foaming property of surfactant solution should be considered to determine the optimal concentration of polymer in the actual application.

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