| Study on Expansion Properties of Composite Water-absorbent Swelling Rubber Particles in CO2 |
| Received:June 28, 2018 Revised:June 28, 2018 |
| DOI：10.12136/j.issn.1000-890X.2019.07.0521 |
| Key Words: composite water-absorbent swelling rubber；carbon dioxide；expansion property；particle size；temperature；mass fraction of rubber |
| Author Name | Affiliation | E-mail | | MA Tao* | Exploration production research institute；SINOPEC Key Laboratory of Marine Oil Gas Reservoir Production | matao1978_119@163.com |
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| Abstract: |
| The effects of particle size，temperature and mass fraction of rubber on the expansion properties of composite water-absorbent swelling rubber particles in CO2 were analyzed by high temperature and high pressure experiments.The results showed that，at the same temperature and pressure，the smaller the particle size and the higher the mass fraction of the composite water-absorbent swelling rubber were，the larger the expansion ratio in CO2 was.When the pressure and time were the same，the higher the temperature was，the bigger the expansion ratio of composite water-absorbent swelling rubber particles in CO2 was. |
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