US 11,959,013 B2
Viscoelastic surfactant-based treatment fluids for use with metal oxide-based cements
Waseem Abdulrazzaq, Al-Aqrabia (SA); Ayoub Ibrahim Awaji, Dhahran (SA); Siham Kamal Fatani, Dammam (SA); and Jay Paul Deville, Spring, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jul. 16, 2021, as Appl. No. 17/378,331.
Prior Publication US 2023/0019738 A1, Jan. 19, 2023
Int. Cl. C09K 8/467 (2006.01); C04B 22/12 (2006.01); C04B 22/14 (2006.01); C04B 24/12 (2006.01); C04B 24/16 (2006.01); C04B 28/10 (2006.01); C04B 103/22 (2006.01); C04B 103/40 (2006.01); E21B 33/13 (2006.01)
CPC C09K 8/467 (2013.01) [C04B 22/124 (2013.01); C04B 22/142 (2013.01); C04B 24/123 (2013.01); C04B 24/16 (2013.01); C04B 28/105 (2013.01); E21B 33/13 (2013.01); C04B 2103/22 (2013.01); C04B 2103/40 (2013.01); C09K 2208/30 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method comprising:
introducing a treatment fluid comprising an aqueous base fluid, at least one viscoelastic surfactant, a divalent salt, magnesium sulfate heptahydrate (MgSO4·7H2O), and magnesium oxide (MgO) into a wellbore penetrating at least a portion of a subterranean formation; and
allowing the treatment fluid to at least partially set in the subterranean formation,
wherein the magnesium sulfate heptahydrate is present in a concentration of about 20% to about 35% by weight of the treatment fluid and wherein the magnesium oxide is present in a concentration of about 20% to about 35% by weight of the treatment fluid.