A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Retarder for oil well cement and preparation method thereof
The invention provides a retarder for oil well cement and a preparation method thereof.The preparation method of the retarder comprises the steps that a 2-acrylamido-2-methylpropanesulfonic acid monomer, an unsaturated carboxylic acid monomer and a rigid monomer are added into deionized water and stirred to be dissolved, and the pH value is adjusted to 4-5; heating the mixed solution to 50-90 DEG C, adding a chain transfer agent, and carrying out polymerization reaction; adding a second polymer and water into the reaction product, adding a photoinitiator and an emulsifier, and stirring in a nitrogen atmosphere; and carrying out ultraviolet irradiation reaction on the stirred product, curing, washing with ethanol, and drying to obtain the retarder. The retarder provided by the invention has excellent stability and high temperature resistance.
本申请提供一种油井水泥用缓凝剂及其制备方法，该缓凝剂包括：将2‑丙烯酰胺基‑2‑甲基丙磺酸单体、不饱和羧酸单体和刚性单体加入至去离子水中，搅拌溶解，调节pH值至4～5；将上述混合液升温至50～90℃，加入链转移剂，进行聚合反应；将第二聚合物和水加入至上述反应产物中，再加入光引发剂和乳化剂后，在氮气氛围下搅拌；将搅拌后的产物，使用紫外光照射反应后，进行固化，使用乙醇洗涤、干燥后得到所述缓凝剂。本申请的缓凝剂，具有优异的稳定性能，以及耐高温性能。
Retarder for oil well cement and preparation method thereof
The invention provides a retarder for oil well cement and a preparation method thereof.The preparation method of the retarder comprises the steps that a 2-acrylamido-2-methylpropanesulfonic acid monomer, an unsaturated carboxylic acid monomer and a rigid monomer are added into deionized water and stirred to be dissolved, and the pH value is adjusted to 4-5; heating the mixed solution to 50-90 DEG C, adding a chain transfer agent, and carrying out polymerization reaction; adding a second polymer and water into the reaction product, adding a photoinitiator and an emulsifier, and stirring in a nitrogen atmosphere; and carrying out ultraviolet irradiation reaction on the stirred product, curing, washing with ethanol, and drying to obtain the retarder. The retarder provided by the invention has excellent stability and high temperature resistance.
本申请提供一种油井水泥用缓凝剂及其制备方法，该缓凝剂包括：将2‑丙烯酰胺基‑2‑甲基丙磺酸单体、不饱和羧酸单体和刚性单体加入至去离子水中，搅拌溶解，调节pH值至4～5；将上述混合液升温至50～90℃，加入链转移剂，进行聚合反应；将第二聚合物和水加入至上述反应产物中，再加入光引发剂和乳化剂后，在氮气氛围下搅拌；将搅拌后的产物，使用紫外光照射反应后，进行固化，使用乙醇洗涤、干燥后得到所述缓凝剂。本申请的缓凝剂，具有优异的稳定性能，以及耐高温性能。
Retarder for oil well cement and preparation method thereof
一种油井水泥用缓凝剂及其制备方法
LIU GUIBIN (author) / SHEN YUANKE (author) / E YAKUN (author) / LIU HUAQIANG (author)
2024-11-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
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
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
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