EP 0905350 A1 19990331 - Process for conveying hydrates dispersed in production effluents
Title (en)
Process for conveying hydrates dispersed in production effluents
Title (de)
Verfahren zum Transport in Produktionsabströmungen dispergierter Hydrate
Title (fr)
Méthode pour transporter des hydrates en suspension dans des effluents de production
Publication
Application
Priority
FR 9712050 A 19970925
Abstract (en)
The addition of an amphiphilic non-ionic product, formed by the reaction between a polymerized unsaturated oil and an aminoalcohol enables the transport of suspended hydrates in fluids comprising water, gas and liquid hydrocarbons and inhibits agglomeration of the hydrates. The concentration of the incorporated additive is 0.1-5%, preferably 0.1-2%, relative to the water present. The fluid may comprise the hydrocarbons methane, ethane, ethylene, propane, propene and n-butane, possibly H2S and/or CO2, natural gas, petroleum gas and at least one liquid hydrocarbon. An Independent claim is also included for the preparation of the additive, by the reaction between a polymerized flax oil of viscosity (20 degrees C.) 5-60Pa.s. and diethanolamine. After the reaction, the product is conditioned in an aromatic solvent or one derived from an oil , vegetable or animal grease (preferably a methyl ester of colza oil) to give a mixture containing 20-80%, preferably 30-0%, of solvent.
Abstract (fr)
On décrit un procédé pour transporter des hydrates en suspension au sein d'un fluide comprenant de l'eau, du gaz et un hydrocarbure liquide, dans lequel on incorpore audit fluide au moins une composition à caractère amphiphile non-ionique obtenue par réaction d'au moins une huile végétale insaturée polymérisée avec un aminoalcool. La composition à caractère amphiphile non-ionique est introduite en général à une concentration de 0,1 à 5 % en masse par rapport à l'eau.
IPC 1-7
E21B 37/06; F17D 1/16; F17D 1/05; F17D 1/00; F15D 1/02; F17D 1/02; C10L 3/00
IPC 8 full level
B01F 17/52 (2006.01); C09K 8/52 (2006.01); C09K 23/52 (2022.01); C10L 3/00 (2006.01); C10L 3/06 (2006.01); F17D 1/16 (2006.01)
CPC (source: EP US)
C10L 3/00 (2013.01 - EP US); C10L 3/06 (2013.01 - EP US); F17D 1/16 (2013.01 - EP US); Y10S 585/95 (2013.01 - EP US)
Citation (search report)
[DA] EP 0323775 A1 19890712 - INST FRANCAIS DU PETROLE [FR]
Designated contracting state (EPC)
DK FR GB NL
DOCDB simple family (publication)
EP 0905350 A1 19990331; EP 0905350 B1 20050803; BR 9803505 A 19991207; CA 2245212 A1 19990325; CA 2245212 C 20070807; DK 0905350 T3 20051128; FR 2768637 A1 19990326; FR 2768637 B1 19991022; NO 326825 B1 20090223; NO 984457 D0 19980924; NO 984457 L 19990326; US 5958844 A 19990928
DOCDB simple family (application)
EP 98402297 A 19980917; BR 9803505 A 19980924; CA 2245212 A 19980924; DK 98402297 T 19980917; FR 9712050 A 19970925; NO 984457 A 19980924; US 16028998 A 19980925