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A platform for research: civil engineering, architecture and urbanism
POLYMER HAVING DISPERSING FUNCTION, OIL WELL CEMENT DISPERSANT, AND PREPARATION METHOD THEREFOR AND USE THEREOF
The present invention provides a polymer having a dispersing function, a preparation method therefor, and a use thereof as a cement dispersant. The polymer comprises a structural unit a, a structural unit b, a structural unit c and a structural unit d, wherein the structural unit a is provided by an unsaturated polyether and/or polyester, the structural unit b is provided by an unsaturated carboxylic acid or an anhydride or salt thereof, the structural unit c is provided by a silane and/or siloxane containing a polymerizable group, and the structural unit d is provided by an unsaturated sulfonic acid or a salt thereof; the molar ratio of the structural unit a to the structural unit d is 1:(5-15), preferably 1:(6-10), and the polymer has a weight average molecular weight of 20,000 to 120,000. The polymer of the present invention is used as an oil well cement dispersant; in use, the dispersant can not only solve the fluidity of cement slurry, but also improve the sedimentation stability of the slurry; in addition to good compatibility with additives, the dispersant also exhibit desirable compatibility and dispersibility for additive materials such as micro-silicon and latex; the dispersant is suitable for use in medium- and low-temperature well cementing projects, and greatly meets the actual requirements for oil well cement dispersants.
POLYMER HAVING DISPERSING FUNCTION, OIL WELL CEMENT DISPERSANT, AND PREPARATION METHOD THEREFOR AND USE THEREOF
The present invention provides a polymer having a dispersing function, a preparation method therefor, and a use thereof as a cement dispersant. The polymer comprises a structural unit a, a structural unit b, a structural unit c and a structural unit d, wherein the structural unit a is provided by an unsaturated polyether and/or polyester, the structural unit b is provided by an unsaturated carboxylic acid or an anhydride or salt thereof, the structural unit c is provided by a silane and/or siloxane containing a polymerizable group, and the structural unit d is provided by an unsaturated sulfonic acid or a salt thereof; the molar ratio of the structural unit a to the structural unit d is 1:(5-15), preferably 1:(6-10), and the polymer has a weight average molecular weight of 20,000 to 120,000. The polymer of the present invention is used as an oil well cement dispersant; in use, the dispersant can not only solve the fluidity of cement slurry, but also improve the sedimentation stability of the slurry; in addition to good compatibility with additives, the dispersant also exhibit desirable compatibility and dispersibility for additive materials such as micro-silicon and latex; the dispersant is suitable for use in medium- and low-temperature well cementing projects, and greatly meets the actual requirements for oil well cement dispersants.
POLYMER HAVING DISPERSING FUNCTION, OIL WELL CEMENT DISPERSANT, AND PREPARATION METHOD THEREFOR AND USE THEREOF
POLYMER MIT DISPERGIERFUNKTION, ÖLBOHRLOCHZEMENTDISPERGIERMITTEL UND HERSTELLUNGSVERFAHREN DAFÜR UND VERWENDUNG DAVON
POLYMÈRE AYANT UNE FONCTION DE DISPERSION, DISPERSANT DE CIMENT POUR PUITS DE PÉTROLE, ET PROCÉDÉ DE PRÉPARATION ASSOCIÉ ET UTILISATION CORRESPONDANTE
ZHOU SHIMING (author) / MIAO XIA (author) / YANG GUANGGUO (author) / WEI HAOGUANG (author) / LU PEIQING (author) / XIAO JINGNAN (author) / YANG HONGQI (author) / LIU RENGGUANG (author) / CHEN LEI (author) / WANG LISHUANG (author)
2024-10-02
Patent
Electronic Resource
English
IPC:
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C04B
Kalk
,
LIME
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
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