CPC C09K 8/604 (2013.01) [C09K 8/602 (2013.01); C09K 8/68 (2013.01); C09K 8/74 (2013.01); C09K 8/80 (2013.01); C09K 8/86 (2013.01); E21B 43/267 (2013.01); E21B 43/27 (2020.05); E21B 47/11 (2020.05); C09K 2208/10 (2013.01); C09K 2208/12 (2013.01); C09K 2208/26 (2013.01); C09K 2208/28 (2013.01); C09K 2208/32 (2013.01)] | 20 Claims |
1. A method for stimulating an unconventional subterranean formation with a fluid, comprising:
(a) introducing a low particle size injection fluid through a wellbore into the unconventional subterranean formation, the low particle size injection fluid comprising an aqueous-based injection fluid and a single-phase liquid surfactant package comprising an anionic surfactant comprising a hydrophobic tail comprising from 6 to 60 carbon atoms, wherein the low particle size injection fluid is aqueous stable and has a maximum particle size of less than 0.1 micrometers in diameter in particle size distribution measurements performed at a temperature and salinity of the unconventional subterranean formation;
(b) allowing the low particle size injection fluid to imbibe into a rock matrix of the unconventional subterranean formation for a period of time; and
(c) producing fluids from the unconventional subterranean formation through the wellbore.
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