US 11,718,779 B2
Naphthenate inhibition
Carl Engelbert Reiners, GH Borne (NL); Emma Catherine Harvey, BA Enschede (NL); and Gerrit Beert van Dijk, KV Delden (NL)
Assigned to ChampionX USA Inc., Sugar Land, TX (US)
Appl. No. 16/623,493
Filed by ChampionX USA Inc., Sugarland, TX (US)
PCT Filed May 25, 2018, PCT No. PCT/IB2018/053743
§ 371(c)(1), (2) Date Dec. 17, 2019,
PCT Pub. No. WO2018/234907, PCT Pub. Date Dec. 27, 2018.
Claims priority of application No. 1709767 (GB), filed on Jun. 19, 2017.
Prior Publication US 2020/0199438 A1, Jun. 25, 2020
Int. Cl. C09K 8/524 (2006.01)
CPC C09K 8/524 (2013.01) [C09K 2208/32 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of inhibiting the formation of naphthenic deposits, comprising adding a monocarboxylic acid to a fluid comprising crude oil to form an inhibited fluid, wherein the monocarboxylic acid consists of a branched C8-C12 monocarboxylic acid; and wherein the formation of naphthenic deposits is inhibited, wherein naphthenic deposits comprise deposits formed from naturally occurring carboxylate species present in crude oil including deposits comprising carboxylate salt precipitates and water-in-oil emulsions stabilized by carboxylates.