US 12,234,404 B2
Acid matrix applications: well stimulation and completion fluids using viscoelastic surfactants and modified additives
Rigoberto C. Advincula, Knoxville, TN (US); Kunitoshi Mimura, Chiyoda-ku (JP); Daisuke Ohno, Katsushika-ku (JP); and Masahiro Shimada, Katsushika-ku (JP)
Assigned to Mitsubishi Gas Chemical Company, Inc., Chiyoda-ku (JP)
Appl. No. 17/766,977
Filed by Mitsubishi Gas Chemical Company, Inc., Chiyoda-ku (JP)
PCT Filed Oct. 7, 2020, PCT No. PCT/US2020/054584
§ 371(c)(1), (2) Date Apr. 6, 2022,
PCT Pub. No. WO2021/071952, PCT Pub. Date Apr. 15, 2021.
Claims priority of provisional application 62/911,671, filed on Oct. 7, 2019.
Prior Publication US 2024/0117234 A1, Apr. 11, 2024
Int. Cl. C09K 8/20 (2006.01)
CPC C09K 8/206 (2013.01) [C09K 2208/10 (2013.01); C09K 2208/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A composition for an oil or gas well formation, comprising:
a viscoelastic surfactant, and
a modified nanomaterial,
wherein a weight ratio of the viscoelastic surfactant to the modified nanomaterial is from 1:1 to 20:1.