CPC C09K 8/52 (2013.01) [E21B 37/06 (2013.01); C09K 2208/22 (2013.01)] | 14 Claims |
1. A method comprising:
introducing a composition downhole, the composition comprising an imidazoline-derived compound; and
contacting the composition with a downhole fluid to inhibit formation of hydrate agglomerates, wherein the downhole fluid comprises natural gas or hydrocarbons, wherein formation of hydrate agglomerates in the downhole fluid is inhibited, and wherein the imidazoline-derived compound has the formula I or VIII::
![]() ![]() wherein R4 is C1-C30 carbon chain (linear or branched, saturated or unsaturated), C3-C8 cycloalkyl, carboxylate, or amidate;
R1 and R2 are independently a C2 linker to a carboxylic acid, ester, amide, or a ring structure; R1 is hydrogen or C1-C4 alkyl and R2 is C1-C4 alkyl; or R1 is hydrogen or —C(O)—(CH2)n-NH—(CH2)3—N(butyl)2 and R2 is —C(O)—(CH2)n-NH—(CH2)3—N(butyl)2; or R1 is hydrogen or —(CH2)3—C(O)—NH—(CH2)3—N(butyl)2 and R2 is —(CH2)3—C(O)—NH—(CH2)3—N(butyl)2; and
R3 is C1-C10 linear or branched, saturated or unsaturated carbon chain linking the imidazoline ring to the nitrogen atom.
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