US 12,139,660 B2
Treatment of subterranean formations
Rajendra Arunkumar Kalgaonkar, Dhahran (SA); Eyad Alali, Dammam (SA); Mohammed A. Bataweel, Dhahran (SA); Nisar Ullah, Dhahran (SA); and Muhammad Mansha, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA); and King Fahd University of Petroleum & Minerals, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA); and KING FAHD UNIVERSITY OF PETROLEUM & MINERALS, Dhahran (SA)
Filed on May 1, 2023, as Appl. No. 18/310,256.
Application 18/310,256 is a division of application No. 17/509,857, filed on Oct. 25, 2021, granted, now 11,685,855.
Prior Publication US 2023/0265334 A1, Aug. 24, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C09K 8/508 (2006.01); E21B 33/138 (2006.01)
CPC C09K 8/5086 (2013.01) [E21B 33/138 (2013.01); C09K 2208/10 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A wellbore in a subterranean formation, the wellbore comprising a wellbore zone having a gel that restricts flow of fluid from the subterranean formation into the wellbore at the wellbore zone, wherein the gel comprises zwitterionic gemini surfactant and silica nanoparticles, wherein the silica nanoparticles are formed in situ from orthosilicate catalyzed by an acid.