A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Polymer, ultrahigh-temperature oil well cement retarder and preparation method and application thereof, and cement paste
The invention provides a polymer, an ultrahigh-temperature oil well cement retarder, a preparation method and application of the ultrahigh-temperature oil well cement retarder and cement paste, the molecular structural formula of the polymer is as shown in the formula (1): # imgabs0 # formula (1), a, b and c are mole numbers, and the ratio range of a, b and c is (40-85): (10-40): (5-20); r1 is one of-H,-CH3 and-CH2COOH, and R2 is one of-H,-CH3 and-CH2COOH; the ultrahigh-temperature oil well cement retarder can resist the temperature of 240 DEG C, the thickening time of cement paste is linearly adjustable within 200-500 min within the temperature range of 110-240 DEG C, the cement paste is in a good linear relation with the temperature and the adding amount, the ultrahigh-temperature oil well cement retarder is good in compatibility with other admixtures, the influence on the mechanical property of set cement is small, and the ultrahigh-temperature oil well cement retarder is suitable for being used for oil wells. And the safety of ultrahigh-temperature well cementation operation can be guaranteed, and the technical requirements of complex and difficult well cementation are met.
本发明提供了一种聚合物、超高温油井水泥缓凝剂及其制备方法与应用和水泥浆，所述聚合物的分子结构式如式(1)所示：#imgabs0#式(1)中，a、b、c均为摩尔数，三者的比值范围为40‑85:10‑40:5‑20；R1为‑H、‑CH3及‑CH2COOH中的一种；R2选自以下化合物中的一种：#imgabs1##imgabs2#及#imgabs3#本发明提供的超高温油井水泥缓凝剂抗温可达240℃，在110‑240℃的温度范围内，水泥浆稠化时间在200‑500min内线性可调且与温度、加量呈良好的线性关系，与其它外加剂配伍性良好，对水泥石力学性能影响较小，能够保障超高温固井作业安全和满足复杂、疑难井固井技术要求。
Polymer, ultrahigh-temperature oil well cement retarder and preparation method and application thereof, and cement paste
The invention provides a polymer, an ultrahigh-temperature oil well cement retarder, a preparation method and application of the ultrahigh-temperature oil well cement retarder and cement paste, the molecular structural formula of the polymer is as shown in the formula (1): # imgabs0 # formula (1), a, b and c are mole numbers, and the ratio range of a, b and c is (40-85): (10-40): (5-20); r1 is one of-H,-CH3 and-CH2COOH, and R2 is one of-H,-CH3 and-CH2COOH; the ultrahigh-temperature oil well cement retarder can resist the temperature of 240 DEG C, the thickening time of cement paste is linearly adjustable within 200-500 min within the temperature range of 110-240 DEG C, the cement paste is in a good linear relation with the temperature and the adding amount, the ultrahigh-temperature oil well cement retarder is good in compatibility with other admixtures, the influence on the mechanical property of set cement is small, and the ultrahigh-temperature oil well cement retarder is suitable for being used for oil wells. And the safety of ultrahigh-temperature well cementation operation can be guaranteed, and the technical requirements of complex and difficult well cementation are met.
本发明提供了一种聚合物、超高温油井水泥缓凝剂及其制备方法与应用和水泥浆，所述聚合物的分子结构式如式(1)所示：#imgabs0#式(1)中，a、b、c均为摩尔数，三者的比值范围为40‑85:10‑40:5‑20；R1为‑H、‑CH3及‑CH2COOH中的一种；R2选自以下化合物中的一种：#imgabs1##imgabs2#及#imgabs3#本发明提供的超高温油井水泥缓凝剂抗温可达240℃，在110‑240℃的温度范围内，水泥浆稠化时间在200‑500min内线性可调且与温度、加量呈良好的线性关系，与其它外加剂配伍性良好，对水泥石力学性能影响较小，能够保障超高温固井作业安全和满足复杂、疑难井固井技术要求。
Polymer, ultrahigh-temperature oil well cement retarder and preparation method and application thereof, and cement paste
一种聚合物、超高温油井水泥缓凝剂及其制备方法与应用和水泥浆
XIA XIUJIAN (author) / YU YONGJIN (author) / JIN JIANZHOU (author) / QI FENGZHONG (author) / ZHANG CHI (author) / ZHANG HUA (author) / LIU HUITING (author) / XU WENHUA (author) / XU PU (author) / WANG GUIFU (author)
2023-10-27
Patent
Electronic Resource
Chinese
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