Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultrahigh-temperature large-temperature-difference retarder for oil well cement and preparation method thereof
The invention discloses an ultrahigh-temperature large-temperature-difference retarder for oil well cement and a preparation method of the ultrahigh-temperature large-temperature-difference retarder. The ultrahigh-temperature large-temperature-difference retarder is prepared by taking water as a solvent and azobis (isobutylamidine hydrochloride) as an initiator; vinyl phosphonic acid, diethyl vinylphosphonate, divinyl benzene, tristyrylphenol polyoxyethylene ether and N-vinyl pyrrolidone are used as monomers to be subjected to a copolymerization reaction, and the ultrahigh-temperature large-temperature-difference retarder for the oil well cement is obtained. The ultrahigh-temperature large-temperature-difference retarder for the oil well cement is a polymer prepared from a monomer with a rigid group, the polymer is not decomposed under the ultrahigh-temperature condition and still keeps the original retarding performance, the thickening time is convenient to adjust, and the adding amount of the retarder is not increased, so that the strength of set cement at the top is rapidly developed, and super retarding is avoided.
本申请公开了一种油井水泥用超高温大温差缓凝剂及其制备方法，以水为溶剂，以偶氮二异丁脒盐酸盐为引发剂，以乙烯基膦酸、乙烯基膦酸二乙酯、二乙烯基苯、三苯乙烯基苯酚聚氧乙烯醚和N‑乙烯基吡咯烷酮为单体进行共聚反应得到油井水泥用超高温大温差缓凝剂。本申请的油井水泥用超高温大温差缓凝剂为采用带有刚性基团的单体制成的聚合物，超高温条件下聚合物不分解仍然保持原有缓凝性能，稠化时间便于调节，并且不增加缓凝剂加量，所以顶部水泥石强度也较快发展，避免了超缓凝。
Ultrahigh-temperature large-temperature-difference retarder for oil well cement and preparation method thereof
The invention discloses an ultrahigh-temperature large-temperature-difference retarder for oil well cement and a preparation method of the ultrahigh-temperature large-temperature-difference retarder. The ultrahigh-temperature large-temperature-difference retarder is prepared by taking water as a solvent and azobis (isobutylamidine hydrochloride) as an initiator; vinyl phosphonic acid, diethyl vinylphosphonate, divinyl benzene, tristyrylphenol polyoxyethylene ether and N-vinyl pyrrolidone are used as monomers to be subjected to a copolymerization reaction, and the ultrahigh-temperature large-temperature-difference retarder for the oil well cement is obtained. The ultrahigh-temperature large-temperature-difference retarder for the oil well cement is a polymer prepared from a monomer with a rigid group, the polymer is not decomposed under the ultrahigh-temperature condition and still keeps the original retarding performance, the thickening time is convenient to adjust, and the adding amount of the retarder is not increased, so that the strength of set cement at the top is rapidly developed, and super retarding is avoided.
本申请公开了一种油井水泥用超高温大温差缓凝剂及其制备方法，以水为溶剂，以偶氮二异丁脒盐酸盐为引发剂，以乙烯基膦酸、乙烯基膦酸二乙酯、二乙烯基苯、三苯乙烯基苯酚聚氧乙烯醚和N‑乙烯基吡咯烷酮为单体进行共聚反应得到油井水泥用超高温大温差缓凝剂。本申请的油井水泥用超高温大温差缓凝剂为采用带有刚性基团的单体制成的聚合物，超高温条件下聚合物不分解仍然保持原有缓凝性能，稠化时间便于调节，并且不增加缓凝剂加量，所以顶部水泥石强度也较快发展，避免了超缓凝。
Ultrahigh-temperature large-temperature-difference retarder for oil well cement and preparation method thereof
一种油井水泥用超高温大温差缓凝剂及其制备方法
SHI LINGLONG (Autor:in) / ZHANG TIANYI (Autor:in) / YANG KUNPENG (Autor:in) / ZENG JIANGUO (Autor:in) / ZHAO BAOHUI (Autor:in) / ZOU JIANLONG (Autor:in) / AO KANGWEI (Autor:in) / XIE FEIYAN (Autor:in) / TU SIQI (Autor:in)
12.01.2024
Patent
Elektronische Ressource
Chinesisch
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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