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Toughening weak-retarding fluid loss agent for well cementation and preparation method of toughening weak-retarding fluid loss agent
The invention discloses a toughening weak-retarding fluid loss agent for well cementation and a preparation method of the toughening weak-retarding fluid loss agent. The fluid loss agent is prepared from the following components in percentage by mass: 20-35% of an adsorptive monomer, 10-15% of a temperature-sensitive monomer, 5-10% of a temperature-resistant rigid monomer, 0.5-1.5% of a modified nano composite material, 0.1-0.5% of an initiator and 45-60% of water, wherein the modified nano composite material is selected from any one or more than two of a carboxyl carbon nano tube, a hydroxyl carbon nano tube and graphene oxide, wherein the surface of the carboxyl carbon nano tube is modified by a silane coupling agent, and silicon dioxide is grafted on the surface of the hydroxyl carbon nano tube. The fluid loss agent can effectively reduce the fluid loss amount of a cement slurry system, is good in high temperature resistance and excellent in fluid loss reduction performance, and has no side effect on thickening performance and strength development of the cement slurry system.
本发明公开了一种固井用增韧弱缓凝降失水剂及其制备方法，该降失水剂由以下质量百分数的组分制备获得：20～35％吸附性单体、10～15％温敏单体、5～10％耐温刚性单体、0.5～1.5％改性纳米复合材料、0.1～0.5％引发剂和45～60％水；其中，所述改性纳米复合材料选自硅烷偶联剂改性的表面接枝有二氧化硅的羧基碳纳米管、羟基碳纳米管和氧化石墨烯中的任意一种或两种以上。本发明的降失水剂能够有效减少水泥浆体系失水量，降失水剂耐高温性能好，降失水性能优异，并且对于水泥浆体系的稠化性能和强度发展并无副作用。
Toughening weak-retarding fluid loss agent for well cementation and preparation method of toughening weak-retarding fluid loss agent
The invention discloses a toughening weak-retarding fluid loss agent for well cementation and a preparation method of the toughening weak-retarding fluid loss agent. The fluid loss agent is prepared from the following components in percentage by mass: 20-35% of an adsorptive monomer, 10-15% of a temperature-sensitive monomer, 5-10% of a temperature-resistant rigid monomer, 0.5-1.5% of a modified nano composite material, 0.1-0.5% of an initiator and 45-60% of water, wherein the modified nano composite material is selected from any one or more than two of a carboxyl carbon nano tube, a hydroxyl carbon nano tube and graphene oxide, wherein the surface of the carboxyl carbon nano tube is modified by a silane coupling agent, and silicon dioxide is grafted on the surface of the hydroxyl carbon nano tube. The fluid loss agent can effectively reduce the fluid loss amount of a cement slurry system, is good in high temperature resistance and excellent in fluid loss reduction performance, and has no side effect on thickening performance and strength development of the cement slurry system.
本发明公开了一种固井用增韧弱缓凝降失水剂及其制备方法，该降失水剂由以下质量百分数的组分制备获得：20～35％吸附性单体、10～15％温敏单体、5～10％耐温刚性单体、0.5～1.5％改性纳米复合材料、0.1～0.5％引发剂和45～60％水；其中，所述改性纳米复合材料选自硅烷偶联剂改性的表面接枝有二氧化硅的羧基碳纳米管、羟基碳纳米管和氧化石墨烯中的任意一种或两种以上。本发明的降失水剂能够有效减少水泥浆体系失水量，降失水剂耐高温性能好，降失水性能优异，并且对于水泥浆体系的稠化性能和强度发展并无副作用。
Toughening weak-retarding fluid loss agent for well cementation and preparation method of toughening weak-retarding fluid loss agent
一种固井用增韧弱缓凝降失水剂及其制备方法
HUANG SHENG (author) / CHEN JIAN (author) / LI ZAOYUAN (author) / SU DONGHUA (author) / LIU JIAN (author) / SUN JINFEI (author)
2024-02-27
Patent
Electronic Resource
Chinese
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
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
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