DISPERSING SULFIDE SCALES IN OIL AND GAS PRODUCTION SYSTEMS

A homopolymer of a monomer selected from those having the general formula: (I) wherein: R1 is H or CH3; R2 is H or an alkyl group having from 1 to about 4 carbon atoms; A is a straight or branched chain alkyl group having from 1 to 10 carbon atoms; and R5, R6, and R7 each are independently an alkyl...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SALMA, TAUSEEF, FIROUZKOUHI, FAEZEH F, SQUICCIARINI, MICHAEL P, LEHMANN, MARC N
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMPOSITIONS BASED THEREON CRACKING HYDROCARBON OILS DIFFUSION TREATMENT OF METALLIC MATERIAL FUELS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LUBRICANTS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MINERAL WAXES MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE ORGANIC MACROMOLECULAR COMPOUNDS PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A homopolymer of a monomer selected from those having the general formula: (I) wherein: R1 is H or CH3; R2 is H or an alkyl group having from 1 to about 4 carbon atoms; A is a straight or branched chain alkyl group having from 1 to 10 carbon atoms; and R5, R6, and R7 each are independently an alkyl group having from 1 to 6 carbon atoms; or a copolymer of such monomers as acrylate, acrylamide or methacrylamide may be used to disperse metal sulfides prior to their forming scales during the production and transportation of crude oil. Terpolymers of dimethyldiallylammonium salt, 2-hydroxypropyl acrylate; and acrylic acid may also be used for this purpose. The production fluid may also be treated with a compound that promotes the formation of dispersible sulfide scales. La présente invention concerne un homopolymère à base d'un monomère choisi parmi les monomères de formule générale (I) dans laquelle R1 représente H ou CH3 ; R2 représente H ou un groupe alkyle comportant de 1 à environ 4 atomes de carbone ; A représente un groupe alkyle à chaîne linéaire ou ramifiée comportant de 1 à 10 atomes de carbone ; et R5, R6 et R7 représentent chacun indépendamment l'un de l'autre un groupe alkyle comportant de 1 à 6 atomes de carbone ; ou, encore, un copolymère à base de monomères tels que l'acrylate, l'acrylamide ou le méthacrylamide, pouvant être utilisé pour disperser des sulfures métalliques préalablement à la formation d'écailles par ceux-ci durant la production et le transport de pétrole brut. Des terpolymères de sel de diméthyldiallylammonium, d'acrylate de 2-hydroxypropyle ; et de l'acide acrylique peuvent également être utilisés à cet effet. Le fluide produit peut également être traité au moyen d'un composé favorisant la formation d'écailles de sulfure dispersibles.