Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dispersing agent for oil well cement and application thereof
The invention discloses a dispersing agent for oil well cement and application thereof. The oil well cement dispersing agent provided by the invention comprises a polymer with the following structural units: a, a structural unit derived from a polyether monomer or a polyester monomer; b, a carboxylic acid unit b1 derived from an unsaturated carboxylic acid monomer and/or a sulfocarboxylic acid unit b2 derived from an unsaturated sulfonic acid monomer; and c, a modified unit c1 derived from a silane monomer and/or a modified unit c2 derived from a cationic monomer. The problem that a conventional dispersing agent has a very strong hydration inhibition effect at 60-120 DEG C is solved, and the effects of small hydration inhibition effect, low retarding property and controllable thickening time are realized.
本发明公开了一种油井水泥用分散剂及其应用。本发明提供的油井水泥分散剂包含具有如下结构单元的聚合物：a、衍生自聚醚单体或聚酯单体的结构单元；b、衍生自不饱和羧酸单体的羧酸单元b1和/或衍生自不饱和磺酸单体的磺羧单元b2；c、衍生自硅烷单体的改性单元c1和/或衍生自阳离子单体的改性单元c2。本发明解决了常规分散剂在60‑120℃之间很强的抑制水化的作用，实现了抑制水化作用小，缓凝性低，稠化时间可控。
Dispersing agent for oil well cement and application thereof
The invention discloses a dispersing agent for oil well cement and application thereof. The oil well cement dispersing agent provided by the invention comprises a polymer with the following structural units: a, a structural unit derived from a polyether monomer or a polyester monomer; b, a carboxylic acid unit b1 derived from an unsaturated carboxylic acid monomer and/or a sulfocarboxylic acid unit b2 derived from an unsaturated sulfonic acid monomer; and c, a modified unit c1 derived from a silane monomer and/or a modified unit c2 derived from a cationic monomer. The problem that a conventional dispersing agent has a very strong hydration inhibition effect at 60-120 DEG C is solved, and the effects of small hydration inhibition effect, low retarding property and controllable thickening time are realized.
本发明公开了一种油井水泥用分散剂及其应用。本发明提供的油井水泥分散剂包含具有如下结构单元的聚合物：a、衍生自聚醚单体或聚酯单体的结构单元；b、衍生自不饱和羧酸单体的羧酸单元b1和/或衍生自不饱和磺酸单体的磺羧单元b2；c、衍生自硅烷单体的改性单元c1和/或衍生自阳离子单体的改性单元c2。本发明解决了常规分散剂在60‑120℃之间很强的抑制水化的作用，实现了抑制水化作用小，缓凝性低，稠化时间可控。
Dispersing agent for oil well cement and application thereof
油井水泥用分散剂及其应用
MIAO XIA (Autor:in) / PANG XIAOFAN (Autor:in) / ZHOU SHIMING (Autor:in) / KONG XIANGMING (Autor:in)
22.02.2022
Patent
Elektronische Ressource
Chinesisch
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