Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Geopolymer raw material composition, geopolymer precursor slurry, application and high-temperature well cementation method
The invention relates to the field of geopolymers, and discloses a geopolymer raw material composition, geopolymer precursor slurry, application and a high-temperature well cementation method. The geopolymer raw material composition comprises calcined kaolin, an organic polymer, an activator and a cosolvent, wherein the organic polymer is chitosan and/or polyvinylpyrrolidone. The geopolymer raw material composition can be used for preparing geopolymer precursor slurry with delayed curing performance, and the geopolymer precursor slurry is further cured to obtain the geopolymer. The curing time of the geopolymer precursor slurry under the condition of 80-120 DEG C is 120-480 min, the fluidity is not lower than 18 cm, the compressive strength of the geopolymer after being cured for 1 day is larger than 7 MPa, the compressive strength of the geopolymer after being cured for 3 days is larger than 14 MPa, the curing time of the polymer precursor slurry under the high-temperature condition is prolonged, and the requirements of high-temperature oil and gas well cementing construction are met.
本发明涉及地质聚合物领域，公开了一种地质聚合物原料组合物、地质聚合物前驱浆液及应用和高温固井的方法。所述地质聚合物原料组合物包括：煅烧高岭土、有机聚合物、激活剂和助溶剂；其中，所述有机聚合物为壳聚糖和/或聚乙烯吡咯烷酮。利用该地质聚合物原料组合物可制备成具有延迟固化性能的地质聚合物前驱浆液，进一步经固化得到地质聚合物。该地质聚合物前驱浆液在80‑120℃条件下固化时间为120‑480min，流动度不低于18cm，固化1天后地质聚合物的抗压强度大于7MPa，固化3天后地质聚合物的抗压强度大于14MPa，实现高温条件下聚合物前驱浆料的固化时间延长，满足高温油气井固井施工的要求。
Geopolymer raw material composition, geopolymer precursor slurry, application and high-temperature well cementation method
The invention relates to the field of geopolymers, and discloses a geopolymer raw material composition, geopolymer precursor slurry, application and a high-temperature well cementation method. The geopolymer raw material composition comprises calcined kaolin, an organic polymer, an activator and a cosolvent, wherein the organic polymer is chitosan and/or polyvinylpyrrolidone. The geopolymer raw material composition can be used for preparing geopolymer precursor slurry with delayed curing performance, and the geopolymer precursor slurry is further cured to obtain the geopolymer. The curing time of the geopolymer precursor slurry under the condition of 80-120 DEG C is 120-480 min, the fluidity is not lower than 18 cm, the compressive strength of the geopolymer after being cured for 1 day is larger than 7 MPa, the compressive strength of the geopolymer after being cured for 3 days is larger than 14 MPa, the curing time of the polymer precursor slurry under the high-temperature condition is prolonged, and the requirements of high-temperature oil and gas well cementing construction are met.
本发明涉及地质聚合物领域，公开了一种地质聚合物原料组合物、地质聚合物前驱浆液及应用和高温固井的方法。所述地质聚合物原料组合物包括：煅烧高岭土、有机聚合物、激活剂和助溶剂；其中，所述有机聚合物为壳聚糖和/或聚乙烯吡咯烷酮。利用该地质聚合物原料组合物可制备成具有延迟固化性能的地质聚合物前驱浆液，进一步经固化得到地质聚合物。该地质聚合物前驱浆液在80‑120℃条件下固化时间为120‑480min，流动度不低于18cm，固化1天后地质聚合物的抗压强度大于7MPa，固化3天后地质聚合物的抗压强度大于14MPa，实现高温条件下聚合物前驱浆料的固化时间延长，满足高温油气井固井施工的要求。
Geopolymer raw material composition, geopolymer precursor slurry, application and high-temperature well cementation method
地质聚合物原料组合物、地质聚合物前驱浆液及应用和高温固井的方法
WEI HAOGUANG (Autor:in) / ZHOU SHIMING (Autor:in) / WANG LISHUANG (Autor:in) / LI XIAOJIANG (Autor:in) / LIU HAOYA (Autor:in) / WANG MU (Autor:in) / TAN CHUNQIN (Autor:in) / XU DAWEI (Autor:in)
22.03.2024
Patent
Elektronische Ressource
Chinesisch
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