US 11,959,016 B2
Inhibiting corrosion in gas wells
Ime Bassey Obot, Dhahran (SA); Mumtaz A. Quraishi, Dhahran (SA); Ahmad A. Sorour, Dhahran (SA); Tao Chen, Dhahran (SA); Qiwei Wang, Dhahran (SA); Mohammed A. Bataweel, Dhahran (SA); and Bader Ghazi Al-Harbi, Dammam (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 Jun. 15, 2021, as Appl. No. 17/347,952.
Prior Publication US 2022/0403224 A1, Dec. 22, 2022
Int. Cl. C23F 11/14 (2006.01); C07D 471/14 (2006.01); C09K 8/54 (2006.01)
CPC C09K 8/54 (2013.01) [C07D 471/14 (2013.01); C23F 11/146 (2013.01); C23F 11/149 (2013.01); C09K 2208/32 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method comprising:
flowing a composition into a wellbore formed in a subterranean formation, thereby inhibiting corrosion in the wellbore, the composition comprising a pyrazolopyridine derivative comprising:
a pyridyl moiety;
a first pyrazole moiety bound to the pyridyl moiety, the first pyrazole moiety comprising an R2 group selected from the group consisting of an alkyl group, a thiol group, a carboxyl group, an aromatic carbonyl group, a hydroxyl group, a methyl amino group, an amide group, and an ester group;
a second pyrazole moiety bound to the pyridyl moiety, the second pyrazole moiety comprising an R3 group selected from the group consisting of an alkyl group, an amide group, an amino group, a thiol group, a hydroxyl group, an ester group, and a carboxyl group; and
a phenyl moiety bound to the pyridyl moiety; and
producing a hydrocarbon from the subterranean formation via the wellbore.