	US 12,352,146 B2
	Method for well stimulation using nanobubbles
Muhammad Majid Almajid, Qatif (SA); Amr Abdel-Fattah, Dhahran (SA); Waheed Syed Arshad, Mississauga (CA); and Afnan Mashat, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Sep. 11, 2023, as Appl. No. 18/464,455.
Prior Publication US 2025/0084740 A1, Mar. 13, 2025
Int. Cl. E21B 43/16 (2006.01); E21B 43/25 (2006.01)

CPC E21B 43/255 (2013.01) [E21B 43/164 (2013.01)]

8 Claims

1. A method for stimulating a well with nanobubbles, comprising:

injecting a stimulation fluid into a nanobubble generator, wherein the stimulation fluid is prepared by:

mixing an acid into a base fluid to form an acid solution;

adding a surfactant to the acid solution to form an acid/surfactant solution; and

adding a corrosion inhibitor to the acid/surfactant solution to form the stimulation fluid;

generating nano-sized bubbles in the stimulation fluid by the nanobubble generator to form a nanobubbles solution, wherein the nanobubbles solution has a viscosity as that of the base fluid; and

injecting the nanobubbles solution into the well.