US 11,993,744 B2
Solid paraffin inhibitor and corrosion inhibitor compositions
Saugata Gon, Rosenberg, TX (US); Jeremy Moloney, Katy, TX (US); Boyd Anthony Laurent, Pearland, TX (US); and Andrew Robert Neilson, Richmond, TX (US)
Assigned to ChampionX USA Inc., Sugarland, TX (US)
Filed by ChampionX LLC, Sugar Land, TX (US)
Filed on Apr. 12, 2023, as Appl. No. 18/299,214.
Claims priority of provisional application 63/362,845, filed on Apr. 12, 2022.
Prior Publication US 2023/0323188 A1, Oct. 12, 2023
Int. Cl. C09K 8/524 (2006.01); C07C 211/63 (2006.01); C07D 233/02 (2006.01); C07D 233/10 (2006.01); C09K 8/54 (2006.01)
CPC C09K 8/524 (2013.01) [C07C 211/63 (2013.01); C07D 233/02 (2013.01); C07D 233/10 (2013.01); C09K 8/54 (2013.01); C09K 2208/32 (2013.01)] 20 Claims
 
1. A solid composition comprising a paraffin inhibitor and a corrosion inhibitor, the paraffin inhibitor comprising a polymer having the structure corresponding to Formulae 1, 2, or 3

OG Complex Work Unit Chemistry
wherein
R1 and R5 are independently hydrogen, alkyl, or alkaryl;
R2 and R3 are independently selected from C10 to C30 alkyl or C10 to C30 alkenyl;
R4 and R6 are independently selected from alkyl or alkenyl;
n1 is an integer from 2 to 200;
n2 is an integer from 30-50,000;
n3 is an integer from 50-2000;
m is an integer from 1 to 12; and
the corrosion inhibitor comprising:
(i) an imidazoline compound having the structure of Formula 4:

OG Complex Work Unit Chemistry
wherein
R10 is C1 to C20 alkyl or C10 to C20 alkenyl;
R12 and R13 are independently hydrogen or C1 to C6 alkyl; and
R11 is C1 to C6 alkyl substituted with —N(R21)(R22) or —C(O)OR24,
R21 is hydrogen or —(CO)R23;
R22 is —(CO)R23;
R23 is C10 to C20 alkyl or C10 to C20alkenyl; and
R24 is hydrogen or C1 to C6 alkyl;
or a tautomer thereof;
(ii) an imidazole compound having the structure of Formula 5:

OG Complex Work Unit Chemistry
wherein
R10 is C1 to C20 alkyl or C10 to C20 alkenyl;
R12 and R13 are independently hydrogen or C1 to C6 alkyl; and
R11 and R14 are independently C1-C6 alkyl substituted with —N(R21)(R22) or —C(O)OR24;
R21 is hydrogen, —(CO)R23, or C1-C6 alkyl substituted with —C(O)OR24;
R22 is —(CO)R23 or C1-C6 alkyl substituted with —C(O)OR24;
R23 is C10 to C20 alkyl or C10 to C20 alkenyl; and
R24 is hydrogen or C1 to C6 alkyl;
or a tautomer thereof;
(iii) a quaternary ammonium compound having the structure of Formula 6

OG Complex Work Unit Chemistry
wherein
R25 is C6 to C20 alkyl or C6 to C20 alkyl wherein one or more —CH2— is replaced with —O—; or —(iv) a combination thereof.