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Nanoparticle foaming agents for major gas fields in China
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XIONG Chunming,CAO Guangqiang,ZHANG Jianjun,LI Nan,XU Wenlong,WU Junwen,LI Jun,ZHANG Na
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Table 3 Classification of nano-particle foaming agent series suitable for main gas fields in China and setting of their performance indexes.
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| Category | System | Tempera-
ture/°C | Salinity/
(mg·L-1) | CO2 content/
% | H2S concentration/
(mg·L-1) | Conden-
sate content/% | Typical
gas field | Not resistant
to condensate | High salinity-resistant system | 80 | 250 000 | / | / | / | Sebei | | High temperature-resistant and high CO2-resistant system | 160 | 50 000 | 100 | / | / | Xushen | High temperature-resistant, high CO2-resistant,
and high H2S-resistant system | 160 | 50 000 | 100 | 100 | / | Chongqing
Gas Mine | High temperature-resistant, high salinity-resistant,
high CO2-resistant, and high H2S-resistant system | 160 | 250 000 | 100 | 100 | / | Longgang,
Northeast Sichuan Gas Mine | Resistant to
condensate | High temperature-resistant and high condensate-resistant system | 160 | 50 000 | / | / | 40 | Sulige | High temperature-resistant, high salinity-resistant,
and high condensate-resistant system | 160 | 250 000 | / | / | 30 | Dongping |
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